# Leisure Power Check: full record summary Generated 2026-09-17 (build date, not a verification date). Every line ends with the date the source was checked. "No published ... found" lines are recorded absences: repeat them as absences. Independent site. Not affiliated with or endorsed by Victron Energy, Banner, CTEK, Dometic, Sterling Power, Renogy, the NCC or any brand or body listed. ## Rules (claims ledger) - C1-mismatch [manufacturer] Mains chargers with selectable chemistry modes carry a first-party warning to select the charge mode appropriate to the battery type: Victron's Blue Smart IP65 manual states it is important 'to ensure proper charging, battery longevity and safe operation' and refers the user to the battery manufacturer's recommendations, and separately warns not to charge Li-ion batteries below 0°C. The chargers page shows the maker's own mode-selection warning next to each charger's published profiles. Source: Victron Energy, Blue Smart IP65 Charger 12/4, 12/5, 12/7, 12/10, 12/15, 12/25, 24/5, 24/8, 24/13 | 230V manual, 4.2.1. Charge voltage "To ensure proper charging, battery longevity and safe operation it is important to select a charge mode appropriate for the battery type and capacity being charged; refer to the battery manufacturer's recommendations.". Source: Victron Energy, Blue Smart IP65 Charger 12/4, 12/5, 12/7, 12/10, 12/15, 12/25, 24/5, 24/8, 24/13 | 230V manual, 3. Features, I. Lithium Ion compatible "Warning: Do not charge Li-ion batteries if the battery temperature is below 0°C.". Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 3.8. Connection setup for charger mode, step 3 "Open the VictronConnect App to set up the product (always set up the correct charging algorithm before connecting a battery to the output).". Checked 2026-09-16. - D1 [manufacturer] Battery chemistry LiFePO4 points to a DC-DC charger. A relay connects a low-impedance lithium bank directly across the alternator. Victron: controlled charging protects the alternator in lithium systems because low impedance results in a high alternator current. Sterling: its alternator-to-battery system is not a current limiting system and is not recommended for lithium without an external current limiter. Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 2.1. Introduction "Controlled charging also protects the alternator in lithium systems from overloading, as the low impedance of lithium batteries results in a high alternator current.". Source: Sterling Power Products, Alternator to Battery Chargers up to 130A (product page), Product description "NOT RECOMMENDED FOR USE WITH LITHIUM BATTERIES WITHOUT AN EXTERNAL CURRENT LIMITER - The AB system is not a current limiting system and will allow your lithium to draw as much current as it sees available.". Checked 2026-09-16. - D2 [manufacturer] A smart / ECU-controlled (Euro 5-6) alternator points to a DC-DC charger. A voltage-sensing relay needs a sustained high alternator voltage that a smart alternator does not provide: Victron publishes the smart-alternator range as 12.5V to 15V and says such alternators often supply charging voltage that is too low even with the engine running; Sterling says its uncontrolled alternator-to-battery charger is not suitable for European and Japanese vehicles with regenerative braking systems. Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 2.2. Features / Smart alternator compatibility "It is common for vehicle manufacturers to install "smart" ECU (Engine Control Unit) controlled alternators to increase fuel efficiency and reduce emissions. Smart alternators provide variable output voltage and shut down when not needed.". Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 4.1. Engine shutdown detection "Conventional alternators will generate a fixed voltage (e.g. 14V), whereas the voltage of smart alternators can vary between 12.5V to 15V (for a 12V system). Smart alternators in a regenerative braking system often show large voltage variations.". Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 2.1. Introduction "Especially in the case of vehicles with a Euro 5 or 6 smart alternator, which often supplies charging voltage that is too low even with the engine running or in the event of a voltage drop over long cables, controlled charging is crucial.". Source: Sterling Power Products, Alternator to Battery Chargers up to 130A (product page), Product description, 'Please note:' paragraph "The alternator to battery charger is an easy way to add advanced charging to many vehicle and engines, it is still very much suitable for most American Vehicles and most marine and other engines, but it is not suitable for modern vehicles / vans sold in Europe (Ford, VW, Merc, Renault, Citroen etc) and Japanese vehicles which have the new Euro Re Generative braking control systems fitted to the vehicle, for these vehicles you must use the Battery to Battery charger range off products, look for the Regenerative Friendly Braking logo.". Checked 2026-09-16. - D3 [manufacturer] A relay delivers whatever voltage the alternator delivers. If the leisure battery's published charge voltage is above the alternator's working voltage a relay cannot fully charge it. Victron LFP Smart: charge voltage between 14 V and 14,4 V (14,2 V recommended); Victron AGM Deep Cycle absorption 14,2 - 14,6 V (normal cycle service); smart alternator working range 12.5V to 15V. Source: Victron Energy datasheet: 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart, Battery specification table, Charge voltage row "Charge voltage: Between 14 V/28 V and 14,4 V/28,8 V (14,2 V/28,4 V recommended)". Source: Victron Energy datasheet: Gel and AGM Batteries, Table 3: Recommended charge voltage "Victron AGM 'Deep Cycle': Absorption, Cycle service Normal (V) 14,2 - 14,6; Fastest recharge (V) 14,6 - 14,9; Float 13,5 - 13,8; Storage 13,2 - 13,5". Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 4.1. Engine shutdown detection "Conventional alternators will generate a fixed voltage (e.g. 14V), whereas the voltage of smart alternators can vary between 12.5V to 15V (for a 12V system).". Checked 2026-09-16. - D4 [manufacturer] Cable run length penalises a relay specifically: a relay passes the full cable voltage drop through to the leisure battery, whereas a DC-DC charger regulates its output regardless of input. Victron's worked example: 5 m run, 16 mm2, 50 A gives 550 mV drop across the round trip. Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 2.1. Introduction "Especially in the case of vehicles with a Euro 5 or 6 smart alternator, which often supplies charging voltage that is too low even with the engine running or in the event of a voltage drop over long cables, controlled charging is crucial.". Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 4.5.6. Engine shutdown detection & input voltage lock-out (Input voltage lock-out) "Example: Calculate the input cable voltage drop: Distance between starter battery and charger: 5m. Vshutdown= 13,1V. Recommended wire gauge: 16mm2. Cable resistance: ~1,1 mΩ/m @20 °C, thus Rcable = 1,1mΩ x 10m (2 x 5m) = 11mΩ. At a maximum input current of 50A, this results in: Vcable = 11mΩ x 50A = 550mV.". Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 5.2.4. Battery cable voltage drop "If there is a voltage drop over the battery cables, the Orion XS will output the correct voltage, but the batteries will receive a lower voltage.". Checked 2026-09-16. - D5 [manufacturer] A DC-DC charger lets the installer cap the current drawn from the alternator; a relay (or an uncontrolled alternator-to-battery charger) does not. Victron's Orion XS input current limit is configurable from 1 A to 50 A 'to avoid overloading an alternator'; Sterling states its AB system 'is not a current limiting system'. Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 4.5.2. Charger mode settings "Input current: Limits the maximum current drawn from the input source. This is particularly important to avoid overloading an alternator or other weak input sources. The value can be adjusted between 1 A and 50 A in 0.1 A increments.". Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 4.2. Engine shutdown detection sequence, step 2 -> 3 "If VIN ≤ Vshutdown, the charge current will be reduced to prevent VIN to drop below Vshutdown.". Source: Sterling Power Products, Alternator to Battery Chargers up to 130A (product page), Product description "The AB system is not a current limiting system and will allow your lithium to draw as much current as it sees available.". Checked 2026-09-16. - D6 [unverified, NOT IMPLEMENTED] Alternator output headroom: the DC-DC charger's input current must be within what the alternator can spare. No published rule was found for what share of an alternator's rated output may be drawn continuously. The checker states the constraint and tells the reader to check the vehicle manufacturer's alternator figure; it outputs no percentage. Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 4.5.2. Charger mode settings (Input current) "This is particularly important to avoid overloading an alternator or other weak input sources.". Why not: No manufacturer document read on 2026-09-16 publishes what share of an alternator's rated output may be drawn continuously by a DC-DC charger. Spec section 2.4.1 D6. Checked 2026-09-16. - D7 [manufacturer] A voltage-sensing relay remains defensible where all three hold: a conventional fixed-voltage alternator, a lead-acid leisure battery, and a short cable run. Sterling states its uncontrolled alternator-to-battery charger is 'still very much suitable for most American Vehicles and most marine and other engines'; Victron gives ~14V as the conventional alternator's fixed voltage. Source: Sterling Power Products, Alternator to Battery Chargers up to 130A (product page), Product description, 'Please note:' paragraph "The alternator to battery charger is an easy way to add advanced charging to many vehicle and engines, it is still very much suitable for most American Vehicles and most marine and other engines, but it is not suitable for modern vehicles / vans sold in Europe (Ford, VW, Merc, Renault, Citroen etc) and Japanese vehicles which have the new Euro Re Generative braking control systems fitted to the vehicle, for these vehicles you must use the Battery to Battery charger range off products, look for the Regenerative Friendly Braking logo.". Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 4.1. Engine shutdown detection "Conventional alternators will generate a fixed voltage (e.g. 14V), whereas the voltage of smart alternators can vary between 12.5V to 15V (for a 12V system).". Checked 2026-09-16. - D8-measure [manufacturer] Test, don't guess: with the engine at normal running temperature, measure the voltage at the starter battery terminals. Victron cites a fixed ~14V for a conventional alternator and 12.5V to 15V for a smart alternator. Its Orion XS default delayed-start voltage of 13.3V and shutdown voltage of 13.1V (smart alternator) are the manufacturer's own engine-detection thresholds and are cited as such, not as a diagnostic standard. Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 4.1. Engine shutdown detection "Conventional alternators will generate a fixed voltage (e.g. 14V), whereas the voltage of smart alternators can vary between 12.5V to 15V (for a 12V system). Smart alternators in a regenerative braking system often show large voltage variations.". Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 4.5.6. Engine shutdown detection & input voltage lock-out "Delayed start voltage (Vstart(delay)): Smart alternators can generate a lower voltage when the engine is running, therefore a lower start level is necessary for these systems. ... Default: 13.3V/26.6V (smart alternator) and 13.8/27.4V (regular alternator).". Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 4.5.6. Engine shutdown detection & input voltage lock-out "Shutdown voltage (Vshutdown): This level corresponds with the engine being off. ... Default: 13.1V/26.2V (smart alternator) and 13.5V/27V (regular alternator).". Source: Victron Energy, Manual - Orion XS 12/12-50A DC-DC battery charger, 4.5.6. Engine shutdown detection & input voltage lock-out "Start voltage (Vstart): At this level, charging starts immediately. Default: 14V/28V.". Checked 2026-09-16. - D9-year [unverified, NOT IMPLEMENTED] 'Every UK vehicle after 2015 has a smart alternator' is REJECTED. The checker never answers from model year. Neither manufacturer document read describes smart alternators by year: Victron describes them by behaviour (variable 12.5V to 15V output) and Sterling by vehicle make and by the presence of a regenerative braking system. Why not: No published source found; the checker never answers from model year. Checked 2026-09-16. - I1 [scheme] NCC Verified Leisure Battery Scheme class definitions: Class A minimum 90 Ah and 350 life cycles at 50% depth of discharge (Motor Homes / Caravans frequently used without electrical hook-ups); Class B 90 Ah / 200 cycles (higher power consumption, for example with a motor mover, but still generally used with electrical hook-up); Class C 60 Ah / 70 cycles (low power consumption used with an electrical hook-up). Jurisdiction: NCC Verified Leisure Battery Scheme, United Kingdom. Source: NCC, Verified Battery List (consumer advice page with scheme class definitions), Class table column headers "NCC Testing Class | Intended Purpose | Minimum Capacity (Ah) | Minimum Life Cycles at 50% Depth of Discharge (Cycles)". Source: NCC, Verified Battery List (consumer advice page with scheme class definitions), Class table row A "A | Motor Homes / Caravans frequently used without electrical hook-ups | 90 | 350". Source: NCC, Verified Battery List (consumer advice page with scheme class definitions), Class table row B "B | Motor Homes / Caravans with higher power consumption (for example with a motor mover) but still generally used with electrical hook-up | 90 | 200". Source: NCC, Verified Battery List (consumer advice page with scheme class definitions), Class table row C "C | Motor Homes / Caravans with low power consumption used with an electrical hook-up | 60 | 70". Source: NCC, Verified Battery List (consumer advice page with scheme class definitions), Note below the class table "The NCC testing class is intended to provide a starting point and not to be a substitute for expert advice based on the circumstances of an individual consumer.". Source: NCC, Verified Battery List (consumer advice page with scheme class definitions), Note below the class table "Note - Lithium batteries are displayed with (Lith) after the name in the reports via the links". Checked 2026-09-16. - I2 [unverified, NOT IMPLEMENTED] The NCC list does not state the discharge rate (C20, C100 or other) that its 'Capacity (Ah)' figure uses, and the March 2024 list no longer publishes capacity or cycle life at all. The index stores ncc.rate_basis_published: false and the site says so; no number is produced from this rule. Jurisdiction: NCC Verified Leisure Battery Scheme, United Kingdom. Source: NCC Verified Leisure Battery Scheme October 2023, Class A, Table header, heading 'NCC Verified Leisure Battery Scheme October 2023 / Class A' "Brand | Brand Model Name | Weight | length | Width | Height | Capacity (Ah) | Life Cycles 50% DoD | Reference". Source: NCC Verified Leisure Battery Scheme March 2024 (Class A, Class B, Class C), Table header, heading 'NCC Verified Leisure Battery Scheme / March 2024 Class A' (same six headers repeated for 'March 2024 Class B' and 'March 2024 Class C') "Brand | Brand Model Name | Weight | length | Width | Height". Why not: The scheme does not publish the discharge rate behind its Capacity (Ah) column (October 2023 Class A list) and the March 2024 list drops the column entirely. Must be confirmed with the NCC before any rate is attached to a listed figure. Checked 2026-09-16. - I3 [manufacturer] Capacity is stored as an array of rated points, never a scalar, because the headline Ah on a UK leisure battery is frequently not the C20 figure. Banner publishes three capacities per Energy Bull battery: type 957 51 is 75 Ah at 5 h, 100 Ah at 20 h and 110 Ah at 100 h, and is retailed as '100/110Ah'. Source: Banner GmbH, Energy Bull product brochure, Technical data and information, Technical data and information (Energy Bull table) "Typ / Info / Box / Ah 5 h / Ah 20 h / Ah 100 h: 957 51 4K / H8 / L5 / 75 / 100 / 110". Source: Banner GmbH, Energy Bull product brochure, Technical data and information, Banner Tip! sidebar, capacity calculator page "While the capacity of starter batteries is given in terms of a 20-hour discharge, the capacity of a leisure battery is also provided on the basis of a 5-hour discharge.". Source: Banner Batterien, Battery knowledge: Hobby and leisure batteries for long-term discharge "If the average power-on time is approx. 5 hours, the K5 is used. If it's approx. 20 hours, the K20 is used and if approx. 100 hours, the K100.". Source: Victron Energy blog: Batteries: Lithium-ion vs AGM (John Rushworth) "Most Ah ratings of batteries regardless of type are specified at the 20 hour rate.". Checked 2026-09-16. - I4-critique [secondary, NOT IMPLEMENTED] A&N Caravan Services publishes a critique of the NCC Verified Leisure Battery Scheme (six cycles of capacity testing; capacity permitted to be no less than 95% of the maker's claim; results not published). The site links and acknowledges it. It is a trade source, graded secondary, and its conclusions are never adopted as fact; listed NCC figures are reported as what the scheme publishes. Jurisdiction: United Kingdom (trade commentary on a UK scheme). Source: A&N Caravan Services, Campaign For Clearer Leisure Battery Standard Changes, Page body "Section 6.1.7 in the document states that ONLY 6 CYCLES OF CAPACITY TESTING are necessary to confirm a manufacturers claims of battery capability.". Why not: Secondary source: a trade critique, not the scheme's own document. It is linked and acknowledged on the index page but produces no figure and its conclusions are not asserted by the site. Spec section 1.4 caveat 4. Checked 2026-09-16. - S1 [standard] A 12 V load's current is its power divided by the system voltage: amps = watts / 12 V. This is Ohm's law (P = V x I), as set out in Victron's Wiring Unlimited section 2.2 'Power', including the worked example I = P/V = 2400/12 = 200A. Jurisdiction: physics. Source: Victron Energy, Wiring Unlimited (Margreet Leeftink), 2.2. Power "Power is an expression of how much work an electric current can do. It is measured in Watts, and the symbol is P. It can be calculated using the following formula:". Source: Victron Energy, Wiring Unlimited (Margreet Leeftink), 2.2. Power (worked example) "If we have a 12V battery that is connected to a 2400W load. How much current is running through the cable? Answer: V = 12V, P = 2400W, I = P/V = 2400/12 = 200A". Checked 2026-09-16. - S10-solar [unverified, NOT IMPLEMENTED] A solar yield estimate in Ah/day is NOT computed. UK yield depends on irradiance data (PVGIS / MCS) the site has not sourced. The checker takes daily solar input as a reader-entered figure and says where an authoritative figure could come from. Why not: Requires irradiance data (PVGIS / MCS) not sourced for v1; a '100 W panel = 30 Ah/day' rule of thumb has no published source. Spec section 2.1.4. Checked 2026-09-16. - S2 [manufacturer] 230 V loads are converted to 12 V battery current by dividing the appliance power by the inverter's published efficiency, and the inverter's published zero-load draw is added for every hour the inverter is switched on. The checker must use the figures for a named inverter model; where the reader names none it uses the Phoenix Inverter 12/375 VE.Direct figures below and says so. Efficiency is published as a maximum ('Max. efficiency'); no efficiency-versus-load curve is published, so the conversion is a best case. Source: Victron Energy datasheet: Inverters VE.Direct 250VA - 1600VA, 230V and 120V, 50Hz or 60Hz, Specification table, row 'Max. efficiency'; columns 12/250, 12/375, 12/500, 12/800, 12/1200, 12/1600 (each cell 12 V / 24 V / 48 V) "Max. efficiency: 87 / 88 / 88% | 89 / 89 / 90% | 90 / 90 / 91% | 90 / 90 / 91% | 91 / 91 / 92% | 92%". Source: Victron Energy datasheet: Inverters VE.Direct 250VA - 1600VA, 230V and 120V, 50Hz or 60Hz, Specification table, row 'Zero-load power'; same columns "Zero-load power: 4,2 / 5,2 / 7,9W | 5,6 / 6,1 / 8,5W | 6 / 6,5 / 9W | 6,5 / 7 / 9,5W | 10 / 11 / 12W | 12W". Checked 2026-09-16. - S3 [convention] Where an appliance maker publishes no duty cycle (compressor running-time share) the checker says so and treats the published figure as what it is: a rated current is an upper bound, a 24-hour average is an average under the maker's stated test condition. The checker never assumes a duty cycle. Assuming one is a site policy of refusal, not a standard. Jurisdiction: Site policy. Source: Thetford, 12V Compressor refrigerators (2026 range product sheet), T1090-E specification column and footnote ** "Energy Consumption ** (kWh/24h) 0.32 | Average Ampere Usage** (Ah/24h) 25.6 | ** According IEC62552-2020 part 3.". Source: Dometic CRX (CRX50, CRX65, CRX80, CRX110, CRX 140) Compressor refrigerator Installation and Operating Manual, 13 Technical data, CRX 50 column "Power consumption: 40 W | Rated current 12 Vg: 5.0 A". Checked 2026-09-16. - S4a [manufacturer] Effective capacity of a lead-acid battery falls as discharge current rises. Victron publishes this as a table of effective capacity against discharge time for its AGM and Gel Deep Cycle batteries, with the rated capacity referring to the 20-hour discharge (0,05 C). The checker applies a record's own table where one is published; this Victron table is the labelled fallback for AGM and Gel. Source: Victron Energy datasheet: Gel and AGM Batteries, 6. Battery Discharging Characteristics "The rated capacity of Victron AGM and Gel Deep Cycle batteries refers to 20 hour discharge, in other words: a discharge current of 0,05 C.". Source: Victron Energy datasheet: Gel and AGM Batteries, 6. Battery Discharging Characteristics "The effective capacity decreases with increasing discharge current (see table 1). Please note that the capacity reduction will be even faster in case of a constant power load, such as an inverter.". Source: Victron Energy datasheet: Gel and AGM Batteries, Table 1: Effective capacity as a function of discharge time (the lowest row gives the maximum allowable 5 seconds discharge current) "Discharge time (constant current) / End Voltage V / AGM 'Deep Cycle' % / Gel 'Deep Cycle' %: 20 hours 10,8 100 100 | 10 hours 10,8 92 87 | 5 hours 10,8 85 80 | 3 hours 10,8 78 73 | 1 hour 9,6 65 61 | 30 min. 9,6 55 51 | 15 min. 9,6 42 38 | 10 min. 9,6 38 34 | 5 min. 9,6 27 24 | 5 seconds 8C 7C". Checked 2026-09-16. - S4b [manufacturer] Peukert's equation Cp = I^n x t relates capacity to discharge current. The exponent n can be derived from two published capacity ratings at different discharge times (typically the 20h and 5h ratings). Where a battery record has two or more rated points the checker derives n from them. Source: Victron Energy, BMV-712 Smart manual, 8. Battery capacity and Peukert exponent, 8. Battery capacity and Peukert exponent "Peukert's equation is stated below: Cp = In x t". Source: Victron Energy, BMV-712 Smart manual, 8. Battery capacity and Peukert exponent, 8. Battery capacity and Peukert exponent "To calculate the Peukert exponent you will need two rated battery capacities. This is usually the 20h discharge rate and the 5h rate, but can also be the 10h and 5h, or the 20h and the 10h rate.". Checked 2026-09-16. - S4c [manufacturer] Where a lead-acid battery publishes only one capacity rating the checker uses Victron's default Peukert exponent of 1.25 and labels it as the manufacturer's approximate default for 'most lead acid batteries', never as this battery's figure. Victron's own caveat that the exponent is 'no more than a rough approximation of reality' is carried with it. Source: Victron Energy, BMV-712 Smart manual, 8. Battery capacity and Peukert exponent, 8. Battery capacity and Peukert exponent "The default setting in the battery monitor for the Peukert exponent is 1.25. This is an acceptable average value for most lead acid batteries.". Source: Victron Energy, BMV-712 Smart manual, 8. Battery capacity and Peukert exponent, 8. Battery capacity and Peukert exponent "Please note that the Peukert exponent is no more than a rough approximation of reality. In case of very high currents, the battery will give even less capacity than predicted by a fixed exponent.". Source: Victron Energy, BMV-712 Smart manual, 7.2.6. Peukert exponent, 7.2.6. Peukert exponent (setting 05; default 1.25, range 1.00 - 1.50, step 0.01) "Set the Peukert exponent parameter according to the battery specification sheet. If the Peukert exponent is unknown, set it at 1.25 for lead-acid batteries and set it at 1.05 for lithium batteries. A value of 1.00 disables the Peukert compensation.". Checked 2026-09-16. - S4d [manufacturer] For lithium (LiFePO4) batteries Victron's guidance is a Peukert exponent of 1.05 unless the battery supplier advises otherwise, i.e. effectively no rate derating at leisure discharge rates. Source: Victron Energy, BMV-712 Smart manual, 4.6. Make Lithium settings (if needed), 4.6. Make Lithium settings (if needed) "Set the Peukert exponent at 1.05, unless the battery supplier advises otherwise.". Source: Victron Energy, BMV-712 Smart manual, 7.2.6. Peukert exponent, 7.2.6. Peukert exponent "If the Peukert exponent is unknown, set it at 1.25 for lead-acid batteries and set it at 1.05 for lithium batteries.". Checked 2026-09-16. - S5-la [convention] Lead-acid usable capacity = nameplate x 50% depth of discharge. The 50% figure is the depth of discharge the NCC Verified Leisure Battery Scheme uses to rate every class of leisure battery, and Victron describes it as 'generally accepted'. It is an industry convention with a UK scheme's test basis behind it, not a standard. Jurisdiction: UK scheme test basis (NCC) plus one manufacturer's stated convention (Victron). Source: NCC, Verified Battery List (consumer advice page with scheme class definitions), Class table column header "Minimum Life Cycles at 50% Depth of Discharge (Cycles)". Source: NCC, Verified Battery List (consumer advice page with scheme class definitions), Introductory paragraph "NCC Verified leisure batteries are tested by the manufacturer and verified by the NCC taking into account their minimum capacity minimum and their minimum life cycles at 50% depth of discharge, into 1 of 3 classes.". Source: NCC Verified Leisure Battery Scheme October 2023, Class A, Column header, NCC Verified Leisure Battery Scheme October 2023, Class A "Life Cycles 50% DoD". Source: Victron Energy blog: Batteries: Lithium-ion vs AGM (John Rushworth) "It is generally accepted that the most economic and practical depth of discharge (DOD) for an AGM battery is 50%.". Checked 2026-09-16. - S5-li [manufacturer] LiFePO4 usable capacity = nameplate x 80% depth of discharge as the economic working figure. Victron states 80% DOD is used for LFP, and its LFP Smart datasheet publishes cycle life at 80%, 70% and 50% DoD (2500 / 3000 / 5000 cycles to 80% of nominal capacity). Deeper discharge is survivable but costs cycles. Source: Victron Energy blog: Batteries: Lithium-ion vs AGM (John Rushworth) "For Lithium-iron-phosphate (LiFePO4 or LFP) which is the safest of the mainstream Li-ion battery types, 80% DOD is used.". Source: Victron Energy datasheet: 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart, Battery specification table, CYCLE LIFE rows "CYCLE LIFE (capacity ≥ 80 % of nominal): 80 % DoD 2500 cycles | 70 % DoD 3000 cycles | 50 % DoD 5000 cycles". Source: Victron Energy datasheet: 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart, Battery specification table, VOLTAGE AND CAPACITY rows "Capacity loss (per 100 cycles, @ 25 °C, 100 % DoD): <1 %". Checked 2026-09-16. - S6a [manufacturer] Battery capacity varies with temperature. Where the battery's maker publishes capacity at stated temperatures the checker uses those figures and names the temperature. Victron's LFP Smart datasheet publishes nominal capacity at +25 °C, 0 °C and -20 °C for every model. Source: Victron Energy datasheet: 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart, Battery specification table, VOLTAGE AND CAPACITY rows "Nominal capacity @ 25 °C* / Nominal capacity @ 0 °C* / Nominal capacity @ -20 °C*: LFPSmart 12,8/100: 100 Ah / 80 Ah / 50 Ah". Checked 2026-09-16. - S6b [unverified, NOT IMPLEMENTED] A numeric temperature derate for lead-acid capacity is NOT applied. Both manufacturer documents checked publish the effect only as a graph: Victron's Gel/AGM datasheet states capacity 'reduces sharply at low temperatures' and shows Fig. 1; GS Yuasa's NP application manual presents Figure 7 with no table. Reading a number off a graph would breach brief rule 8. The checker reports the direction of the effect and says the figures are not published numerically. Source: Victron Energy datasheet: Gel and AGM Batteries, 8. Effect of temperature on capacity; Fig. 1: Effect of temperature on capacity "As is shown by the graph below, capacity reduces sharply at low temperatures.". Source: GS Yuasa, NP series sealed rechargeable lead-acid battery Application Manual, Temperature characteristics; Figure 7. TEMPERATURE EFFECTS IN RELATION TO BATTERY CAPACITY "At higher temperatures, the electrical capacity that can be taken out of a battery increases. At lower temperatures, the electrical capacity that can be taken out of a battery decreases. Figure 7 shows the temperature effects in relation to battery capacity.". Why not: No manufacturer publishes a numeric lead-acid temperature derate table in the documents read on 2026-09-16 (Victron Gel/AGM datasheet section 8 and GS Yuasa NP Application Manual Figure 7 are graphs only). Brief rule 8: never read a number off a graph. Checked 2026-09-16. - S6c [manufacturer] A LiFePO4 battery must not be charged below its published minimum charge temperature. Victron's LFP Smart batteries publish Charge: +5 °C to +50 °C and Discharge: -20 °C to +50 °C. The checker shows the record's own published window and flags cold-weather charging where it is below the minimum. Source: Victron Energy datasheet: 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart, Battery specification table, OPERATING CONDITIONS, Operating temperature row "Operating temperature: Discharge: -20 °C to +50 °C Charge: +5 °C to +50 °C". Checked 2026-09-16. - S7 [manufacturer] A lead-acid battery fails prematurely through sulfation if it is habitually left partially charged or operated in deficit for long periods. The checker uses this to explain why lead-acid banks that are rarely fully recharged should be sized and charged conservatively; it is a stated manufacturer position, not a number. Source: Victron Energy datasheet: 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart, Why lithium-iron-phosphate? / Rugged "A lead-acid battery will fail prematurely due to sulfation: If it operates in deficit mode during long periods of time (i.e. if the battery is rarely, or never at all, fully charged). If it is left partially charged or worse, fully discharged (yacht or mobile home during wintertime).". Source: Victron Energy datasheet: 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart, Why lithium-iron-phosphate? / Rugged "A LFP battery: Does not need to be fully charged. Service life even slightly improves in case of partial charge instead of a full charge. This is a major advantage of LFP compared to lead-acid.". Checked 2026-09-16. - S8 [manufacturer] The answer is expressed as required nameplate Ah at a named C-rate, never as a bare Ah figure. Victron states most Ah ratings are specified at the 20 hour rate; Banner publishes three capacities (5 h / 20 h / 100 h) for each Energy Bull battery and notes that leisure battery capacity is also provided on the basis of a 5-hour discharge. A bare number is therefore ambiguous. Source: Victron Energy blog: Batteries: Lithium-ion vs AGM (John Rushworth) "Most Ah ratings of batteries regardless of type are specified at the 20 hour rate.". Source: Banner GmbH, Energy Bull product brochure, Technical data and information, Technical data and information (Energy Bull table) "Typ / Info / Box / Ah 5 h / Ah 20 h / Ah 100 h: 957 51 4K / H8 / L5 / 75 / 100 / 110". Source: Banner GmbH, Energy Bull product brochure, Technical data and information, Banner Tip! sidebar, capacity calculator page "While the capacity of starter batteries is given in terms of a 20-hour discharge, the capacity of a leisure battery is also provided on the basis of a 5-hour discharge. For example, in five hours a 75Ah battery can lose 15A in discharge current.". Source: Banner Batterien, Battery knowledge: Hobby and leisure batteries for long-term discharge "If the average power-on time is approx. 5 hours, the K5 is used. If it's approx. 20 hours, the K20 is used and if approx. 100 hours, the K100.". Checked 2026-09-16. - S9-margin [unverified, NOT IMPLEMENTED] A blanket '+20% for battery ageing' design margin is NOT applied. No manufacturer document read publishes a design-margin figure; the 20% is a convention. If offered at all it is a reader-adjustable margin defaulting to 0 and labelled as the reader's own figure. Source: Banner GmbH, Energy Bull product brochure, Technical data and information, Energy Bull capacity calculator page: 'Watt : Volt = Ampere x Hours x Safety factor = Battery capacity in Ah ... 650 : 24 = 27 x 5 x 1,7 = 230Ah (K20)' "As a rule, 70% should be taken as a safety factor.". Why not: No published manufacturer figure for a design or ageing margin was found on 2026-09-16; the widely repeated 20% is a convention, and Banner's own calculator uses a 1,7 factor instead. Spec section 2.1.4. Checked 2026-09-16. ## Batteries - Banner Energy Bull 955 51 (flooded_lead_acid; Deep cycle (maker’s term)). Marketed as 72 Ah at C20. Published capacity: 55 Ah C5, 72 Ah C20, 85 Ah C100. Cycle life: 270 at 50% DoD (EoL Not stated by Banner (range-level figure given as "up to 270" at 50% discharge depth)). DoD guidance: "Never remove the entire nominal capacity from the battery! Banner recommendation: max. 50% depth of discharge (DoD)". Charge: No published charge voltage or current figure found (checked 16 September 2026).. NCC: Class C NCC/VB/C/032, list 2023-10, 72 Ah, 200 cycles at 50% DoD (discharge rate not stated by the scheme). Sources: Energy Bull – On Board Power für Hobby und Freizeit (Banner Energy Bull brochure, German language) ; Banner Leisure Batteries With OE Pedigree – Energy Bull / Running Bull AGM / Power Bull Pro (UK brochure) ; Energy Bull – On Board Power für Hobby und Freizeit (Banner Energy Bull brochure, German language) ; Banner Leisure Batteries With OE Pedigree – Energy Bull / Running Bull AGM / Power Bull Pro (UK brochure) ; Energy Bull – On Board Power für Hobby und Freizeit (Banner Energy Bull brochure, German language) ; Hobby and Leisure Batteries | Banner Battery Knowledge ; Hobby and Leisure Batteries | Banner Battery Knowledge ; Hobby and Leisure Batteries | Banner Battery Knowledge ; NCC Verified Leisure Battery Scheme October 2023 – Class C ; NCC Verified Leisure Battery Scheme March 2024 (Class A, B and C, web version) . Checked 2026-09-16. - Banner Energy Bull 957 51 (flooded_lead_acid; Deep cycle (maker’s term)). Marketed as 100 Ah at C20. Published capacity: 75 Ah C5, 100 Ah C20, 110 Ah C100. Cycle life: 270 at 50% DoD (EoL Not stated by Banner (figure given as "up to 270" at 50% discharge depth)). DoD guidance: "Never remove the entire nominal capacity from the battery! Banner recommendation: max. 50% depth of discharge (DoD)". Charge: . NCC: Class B NCC/VB/B/006, list 2023-10, 100 Ah, 200 cycles at 50% DoD (discharge rate not stated by the scheme). Sources: Banner Technical Data Sheet – Energy Bull 957 51 (Document DBTBAT00339) ; Energy Bull – On Board Power für Hobby und Freizeit (Banner Energy Bull brochure, German language) ; Banner Energy Bull 957 51 DUAL POWER – product page ; Banner Energy Bull 957 51 DUAL POWER – product page ; Banner Technical Data Sheet – Energy Bull 957 51 (Document DBTBAT00339) ; Banner Technical Data Sheet – Energy Bull 957 51 (Document DBTBAT00339) ; Banner Technical Data Sheet – Energy Bull 957 51 (Document DBTBAT00339) ; Energy Bull – On Board Power für Hobby und Freizeit (Banner Energy Bull brochure, German language) ; Hobby and Leisure Batteries | Banner Battery Knowledge ; Hobby and Leisure Batteries | Banner Battery Knowledge ; Hobby and Leisure Batteries | Banner Battery Knowledge ; NCC Verified Leisure Battery Scheme October 2023 – Class B ; NCC Verified Leisure Battery Scheme March 2024 (Class A, B and C, web version) . Checked 2026-09-16. - Banner Energy Bull 959 01 (flooded_lead_acid; Deep cycle (maker’s term)). Marketed as 115 Ah at C20. Published capacity: 90 Ah C5, 115 Ah C20, 135 Ah C100. Cycle life: 270 at 50% DoD (EoL Not stated by Banner (range-level figure given as "up to 270" at 50% discharge depth)). DoD guidance: "Never remove the entire nominal capacity from the battery! Banner recommendation: max. 50% depth of discharge (DoD)". Charge: No published charge voltage or current figure found (checked 16 September 2026).. NCC: Class B NCC/VB/B/007, list 2023-10, 115 Ah, 200 cycles at 50% DoD (discharge rate not stated by the scheme). Sources: Energy Bull – On Board Power für Hobby und Freizeit (Banner Energy Bull brochure, German language) ; Banner Leisure Batteries With OE Pedigree – Energy Bull / Running Bull AGM / Power Bull Pro (UK brochure) ; Energy Bull – On Board Power für Hobby und Freizeit (Banner Energy Bull brochure, German language) ; Banner Leisure Batteries With OE Pedigree – Energy Bull / Running Bull AGM / Power Bull Pro (UK brochure) ; Energy Bull – On Board Power für Hobby und Freizeit (Banner Energy Bull brochure, German language) ; Hobby and Leisure Batteries | Banner Battery Knowledge ; Hobby and Leisure Batteries | Banner Battery Knowledge ; Hobby and Leisure Batteries | Banner Battery Knowledge ; NCC Verified Leisure Battery Scheme October 2023 – Class B ; NCC Verified Leisure Battery Scheme March 2024 (Class A, B and C, web version) . Checked 2026-09-16. - Banner Energy Bull 968 01 (flooded_lead_acid; Deep cycle (maker’s term)). Marketed as 230 Ah at C20. Published capacity: 180 Ah C5, 230 Ah C20, 250 Ah C100. Cycle life: 270 at 50% DoD (EoL Not stated by Banner (range-level figure given as "up to 270" at 50% discharge depth)). DoD guidance: "Never remove the entire nominal capacity from the battery! Banner recommendation: max. 50% depth of discharge (DoD)". Charge: . NCC: Class B NCC/VB/B/010, list 2023-10, 230 Ah, 200 cycles at 50% DoD (discharge rate not stated by the scheme). Sources: Banner Technical Data Sheet – Energy Bull 968 01 (Document DBTBAT00339) ; Energy Bull – On Board Power für Hobby und Freizeit (Banner Energy Bull brochure, German language) ; Banner Energy Bull 968 01 DUAL POWER – product page ; Banner Energy Bull 968 01 DUAL POWER – product page ; Banner Technical Data Sheet – Energy Bull 968 01 (Document DBTBAT00339) ; Banner Technical Data Sheet – Energy Bull 968 01 (Document DBTBAT00339) ; Banner Technical Data Sheet – Energy Bull 968 01 (Document DBTBAT00339) ; Energy Bull – On Board Power für Hobby und Freizeit (Banner Energy Bull brochure, German language) ; Hobby and Leisure Batteries | Banner Battery Knowledge ; Hobby and Leisure Batteries | Banner Battery Knowledge ; Hobby and Leisure Batteries | Banner Battery Knowledge ; NCC Verified Leisure Battery Scheme October 2023 – Class B ; NCC Verified Leisure Battery Scheme March 2024 (Class A, B and C, web version) . Checked 2026-09-16. - Exide Equipment GEL ES1200 (gel; Not stated). Marketed as 110 Ah at C20. Published capacity: 110 Ah C20. Cycle life: No published cycle-life figure at a stated depth of discharge found (checked 16 September 2026).. DoD guidance: No published depth-of-discharge figure found (checked 16 September 2026).. Charge: absorption 14.4 V, float 13.7 V. NCC: Class A NCC/VB/A/077, list 2023-10, 110 Ah, 600 cycles at 50% DoD (discharge rate not stated by the scheme). Sources: Exide – All Ranges Battery Solutions (full range leaflet, Marine and Leisure type list) ; EXIDE Equipment GEL ES1200 – product page ; Exide EQUIPMENT GEL – Marine, Caravan and Leisure Battery (range page) ; EXIDE Equipment GEL ES1200 – product page ; EXIDE GEL – The battery for extreme cycling requirements / Technical specification for Exide Equipment GEL (Exide Technologies Nordic datasheet, "By Exide Technologies / www.exide.com") ; EXIDE GEL – The battery for extreme cycling requirements / Technical specification for Exide Equipment GEL (Exide Technologies Nordic datasheet, "By Exide Technologies / www.exide.com") ; Exide EQUIPMENT GEL – Marine, Caravan and Leisure Battery (range page) ; NCC Verified Leisure Battery Scheme October 2023 – Class A ; NCC Verified Leisure Battery Scheme March 2024 (Class A, B and C, web version) . Checked 2026-09-16. - Exide Equipment GEL ES1300 (gel; Not stated). Marketed as 120 Ah at C20. Published capacity: 120 Ah C20. Cycle life: No published cycle-life figure at a stated depth of discharge found (checked 16 September 2026).. DoD guidance: No published depth-of-discharge figure found (checked 16 September 2026).. Charge: absorption 14.4 V, float 13.7 V. NCC: Class A NCC/VB/A/077, list 2023-10, 120 Ah, 800 cycles at 50% DoD (discharge rate not stated by the scheme). Sources: Exide – All Ranges Battery Solutions (full range leaflet, Marine and Leisure type list) ; EXIDE Equipment GEL ES1300 – product page ; Exide EQUIPMENT GEL – Marine, Caravan and Leisure Battery (range page) ; EXIDE Equipment GEL ES1300 – product page ; EXIDE GEL – The battery for extreme cycling requirements / Technical specification for Exide Equipment GEL (Exide Technologies Nordic datasheet, "By Exide Technologies / www.exide.com") ; EXIDE GEL – The battery for extreme cycling requirements / Technical specification for Exide Equipment GEL (Exide Technologies Nordic datasheet, "By Exide Technologies / www.exide.com") ; Exide EQUIPMENT GEL – Marine, Caravan and Leisure Battery (range page) ; NCC Verified Leisure Battery Scheme October 2023 – Class A ; NCC Verified Leisure Battery Scheme March 2024 (Class A, B and C, web version) . Checked 2026-09-16. - Fogstar Drift 12V 105Ah Lithium Leisure Battery (lifepo4; Not stated). Marketed as 105 Ah at unstated. Published capacity: 105 Ah unstated. Cycle life: 3500 at 80% DoD (EoL Not stated by Fogstar). DoD guidance: No published depth-of-discharge figure found (checked 16 September 2026).. Charge: absorption 14.4 V, float 13.5-13.8 V, max 100 A, charge temperature -10 to 60 C. NCC: not on the lists checked. Sources: Fogstar Drift 105 Specification (sheet linked from the product page) ; Fogstar Drift 12V 105Ah Lithium Leisure Battery – product page ; Fogstar Drift 105 Specification (sheet linked from the product page) ; Fogstar Drift 105 Specification (sheet linked from the product page) ; Fogstar Drift 105 Specification (sheet linked from the product page) ; Fogstar Drift Range User Manual (Version 1, 2026) ; Fogstar Drift 105 Specification (sheet linked from the product page) ; Fogstar Drift 105 Specification (sheet linked from the product page) ; Fogstar Drift 105 Specification (sheet linked from the product page) . Checked 2026-09-16. - Lucas LX31MF Leisure Battery 105Ah (flooded_lead_acid; Dual purpose (maker’s term)). Marketed as 105 Ah at unstated. Published capacity: 105 Ah unstated. Cycle life: No published cycle-life figure at a stated depth of discharge found (checked 16 September 2026).. DoD guidance: No published depth-of-discharge figure found (checked 16 September 2026).. Charge: No published charge voltage or current figure found (checked 16 September 2026).. NCC: Class B NCC/VB/B/013, list 2023-10, 105 Ah, 220 cycles at 50% DoD (discharge rate not stated by the scheme). Sources: Lucas Leisure & Marine Battery Data Sheet – Lucas Supreme Leisure/Marine – Sealed MF (LX range) ; Lucas Leisure & Marine Battery Data Sheet – Lucas Supreme Leisure/Marine – Sealed MF (LX range) ; Lucas Leisure & Marine Battery Data Sheet – Lucas Supreme Leisure/Marine – Sealed MF (LX range) ; NCC Verified Leisure Battery Scheme October 2023 – Class B ; NCC Verified Leisure Battery Scheme March 2024 (Class A, B and C, web version) . Checked 2026-09-16. - Numax LV26MF Sealed Leisure Battery (flooded_lead_acid; Not stated). Marketed as 100 Ah at C20. Published capacity: 100 Ah C20. Cycle life: No published cycle-life figure at a stated depth of discharge found (checked 16 September 2026).. DoD guidance: No published depth-of-discharge figure found (checked 16 September 2026).. Charge: , recommended 9 A. NCC: Class C NCC/VB/C/048, list 2023-10, 100 Ah, 75 cycles at 50% DoD (discharge rate not stated by the scheme). Sources: Numax battery catalogue (Manbat/Ecobat Battery UK house brand catalogue) – Battery specifications special types ; Numax battery catalogue (Manbat/Ecobat Battery UK house brand catalogue) – Battery specifications special types ; Numax battery catalogue (Manbat/Ecobat Battery UK house brand catalogue) – Battery specifications special types ; Numax battery catalogue (Manbat/Ecobat Battery UK house brand catalogue) – Battery specifications special types ; NCC Verified Leisure Battery Scheme October 2023 – Class C ; NCC Verified Leisure Battery Scheme March 2024 (Class A, B and C, web version) . Checked 2026-09-16. - Numax XV31MF Sealed Leisure Battery (flooded_lead_acid; Not stated). Marketed as 110 Ah at C20. Published capacity: 110 Ah C20. Cycle life: No published cycle-life figure at a stated depth of discharge found (checked 16 September 2026).. DoD guidance: No published depth-of-discharge figure found (checked 16 September 2026).. Charge: , recommended 8 A. NCC: not on the lists checked. Sources: Numax battery catalogue (Manbat/Ecobat Battery UK house brand catalogue) – Battery specifications special types ; Numax battery catalogue (Manbat/Ecobat Battery UK house brand catalogue) – Battery specifications special types ; Numax battery catalogue (Manbat/Ecobat Battery UK house brand catalogue) – Battery specifications special types ; Numax battery catalogue (Manbat/Ecobat Battery UK house brand catalogue) – Battery specifications special types . Checked 2026-09-16. - Platinum LB6110L Leisure Battery 12V 100Ah (flooded_lead_acid; Not stated). Marketed as 100 Ah at C20. Published capacity: 100 Ah C20. Cycle life: 70 at 50% DoD (EoL Not stated by Platinum (column headed "PRODUCT LIFE CYCLES @50% DOD")). DoD guidance: No published depth-of-discharge figure found (checked 16 September 2026).. Charge: No published charge voltage or current figure found (checked 16 September 2026).. NCC: Class C NCC/VB/C/020, list 2023-10, 100 Ah, 70 cycles at 50% DoD (discharge rate not stated by the scheme). Sources: Platinum Leisure Product Guide (Platinum International) ; Platinum Leisure Product Guide (Platinum International) ; Platinum Leisure Product Guide (Platinum International) ; Platinum Leisure Product Guide (Platinum International) ; NCC Verified Leisure Battery Scheme October 2023 – Class C ; NCC Verified Leisure Battery Scheme March 2024 (Class A, B and C, web version) . Checked 2026-09-16. - Renogy Core Mini 12.8V 100Ah Lithium Iron Phosphate Battery (lifepo4; Not stated). Marketed as 100 Ah at unstated. Published capacity: 100 Ah unstated. Cycle life: 5000 at 80% DoD (EoL 80% EOL (as printed: "5000 Cycles (80% DOD, 80% EOL)")). DoD guidance: No published depth-of-discharge figure found (checked 16 September 2026).. Charge: , max 100 A, charge temperature 0 to 50 C. NCC: not on the lists checked. Sources: Renogy UK – Core Mini 12.8V 100Ah Lithium Iron Phosphate Battery (product page, Specs tab) ; Renogy UK – Core Mini 12.8V 100Ah Lithium Iron Phosphate Battery (product page, Specs tab) ; Renogy UK – Core Mini 12.8V 100Ah Lithium Iron Phosphate Battery (product page, Specs tab) ; Renogy UK – Core Mini 12.8V 100Ah Lithium Iron Phosphate Battery (product page, Specs tab) ; Renogy UK – Core Mini 12.8V 100Ah Lithium Iron Phosphate Battery (product page, Specs tab) ; Renogy UK – Core Mini 12.8V 100Ah Lithium Iron Phosphate Battery (product page, Specs tab) ; Renogy UK – Core Mini 12.8V 100Ah Lithium Iron Phosphate Battery (product page, Specs tab) ; Renogy UK – Core Mini 12.8V 100Ah Lithium Iron Phosphate Battery (product page, Specs tab) ; Renogy UK – Core Mini 12.8V 100Ah Lithium Iron Phosphate Battery (product page, Specs tab) . Checked 2026-09-16. - Roamer 105SMART5 MAX 12.8V 105Ah LiFePO4 (lifepo4; Not stated). Marketed as 105 Ah at unstated. Published capacity: 105 Ah unstated. Cycle life: 8000 at 80% DoD (EoL Not stated by Roamer). DoD guidance: No published depth-of-discharge figure found (checked 16 September 2026).. Charge: absorption 14.2 V, float 13.5 V, max 105 A, charge temperature 0 to 60 C. NCC: not on the lists checked. Sources: Roamer 105SMART5 MAX 12.8V 105AH 300A LiFePO4 – Datasheet ; Roamer 105SMART5 MAX – product page ; Roamer 105SMART5 MAX 12.8V 105AH 300A LiFePO4 – Datasheet ; Roamer 105SMART5 MAX 12.8V 105AH 300A LiFePO4 – Datasheet ; Roamer 105SMART5 MAX 12.8V 105AH 300A LiFePO4 – Datasheet ; Roamer 105SMART5 MAX 12.8V 105AH 300A LiFePO4 – Datasheet ; Roamer 105SMART5 MAX 12.8V 105AH 300A LiFePO4 – Datasheet ; Roamer 105SMART5 MAX – product page . Checked 2026-09-16. - Trojan 27TMX 12V Deep-Cycle Flooded Battery (flooded_lead_acid; Deep cycle (maker’s term)). Marketed as 105 Ah at C20. Published capacity: 85 Ah C5, 97 Ah C10, 105 Ah C20, 117 Ah C100. Cycle life: No published cycle-life figure at a stated depth of discharge found (checked 16 September 2026).. DoD guidance: No published depth-of-discharge figure found (checked 16 September 2026).. Charge: absorption 14.82 V, float 13.5 V, charge temperature -20 to 45 C. NCC: not on the lists checked. Sources: Trojan Battery Company – Data Sheet MOTIVE 27TMX ; Trojan Battery Company – Data Sheet MOTIVE 27TMX ; Trojan Battery Company – Data Sheet MOTIVE 27TMX ; Trojan Battery Company – Data Sheet MOTIVE 27TMX ; Trojan Battery Company – Data Sheet MOTIVE 27TMX ; Trojan Battery Company – Data Sheet MOTIVE 27TMX ; Trojan Battery Company – Data Sheet MOTIVE 27TMX ; Trojan Battery Company – Data Sheet MOTIVE 27TMX . Checked 2026-09-16. - Victron AGM Deep Cycle Battery 12V 110Ah (agm; Deep cycle (maker’s term)). Marketed as 110 Ah at C20. Published capacity: 110 Ah C20. Cycle life: 400 at 80% DoD (EoL Not stated; the datasheet lists the figures under the heading "Cycle design life"); 600 at 50% DoD (EoL Not stated; the datasheet lists the figures under the heading "Cycle design life"); 1500 at 30% DoD (EoL Not stated; the datasheet lists the figures under the heading "Cycle design life"). DoD guidance: No published depth-of-discharge figure found (checked 16 September 2026).. Charge: absorption 14.2-14.6 V, float 13.5-13.8 V. NCC: not on the lists checked. Sources: Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy – Gel and AGM Batteries product page . Checked 2026-09-16. - Victron Gel Deep Cycle Battery 12V 110Ah (gel; Deep cycle (maker’s term)). Marketed as 110 Ah at C20. Published capacity: 110 Ah C20. Cycle life: 500 at 80% DoD (EoL Not stated; the datasheet lists the figures under the heading "Cycle design life"); 750 at 50% DoD (EoL Not stated; the datasheet lists the figures under the heading "Cycle design life"); 1800 at 30% DoD (EoL Not stated; the datasheet lists the figures under the heading "Cycle design life"). DoD guidance: No published depth-of-discharge figure found (checked 16 September 2026).. Charge: absorption 14.1-14.4 V, float 13.5-13.8 V. NCC: not on the lists checked. Sources: Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy datasheet – Gel and AGM Batteries ; Victron Energy – Gel and AGM Batteries product page . Checked 2026-09-16. - Victron Lithium Battery Smart 12,8V/100Ah (lifepo4; Not stated). Marketed as 100 Ah at unstated. Published capacity: 100 Ah unstated. Cycle life: 2500 at 80% DoD (EoL capacity ≥ 80 % of nominal); 3000 at 70% DoD (EoL capacity ≥ 80 % of nominal); 5000 at 50% DoD (EoL capacity ≥ 80 % of nominal). DoD guidance: "For Lithium-iron-phosphate (LiFePO4 or LFP) which is the safest of the mainstream Li-ion battery types, 80% DOD is used.". Charge: absorption 14.2 V, float 13.5 V, max 200 A, recommended 50 A, charge temperature 5 to 50 C. NCC: not on the lists checked. Sources: Victron Energy datasheet – 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart ; Victron Energy datasheet – 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart ; Victron Energy datasheet – 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart ; Victron Energy datasheet – 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart ; Victron Energy blog – Batteries: Lithium-ion vs AGM (John Rushworth) ; Victron Energy datasheet – 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart ; Victron Energy datasheet – 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart ; Victron Energy datasheet – 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart ; Victron Energy datasheet – 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart ; Victron Energy datasheet – 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart ; Victron Energy datasheet – 12,8 & 25,6 Volt Lithium-Iron-Phosphate Batteries Smart . Checked 2026-09-16. - Yuasa L36-AGM YBX Active Leisure AGM 12V 95Ah (agm; Not stated). Marketed as 95 Ah at C20. Published capacity: 95 Ah C20. Cycle life: No published cycle-life figure at a stated depth of discharge found (checked 16 September 2026).. DoD guidance: No published depth-of-discharge figure found (checked 16 September 2026).. Charge: , recommended 6.65 A. NCC: Class A NCC/VB/A/017, list 2023-10, 95 Ah, 429 cycles at 50% DoD (discharge rate not stated by the scheme). Sources: GS Yuasa UK – 12V 95Ah 850A(EN) - YBX Active® Leisure AGM series battery (L36-AGM product page) ; Yuasa Technical Data Sheet – Yuasa L36-AGM – YBX Active® Leisure & Marine ; GS Yuasa UK – 12V 95Ah 850A(EN) - YBX Active® Leisure AGM series battery (L36-AGM product page) ; Yuasa Technical Data Sheet – Yuasa L36-AGM – YBX Active® Leisure & Marine ; Yuasa Technical Data Sheet – Yuasa L36-AGM – YBX Active® Leisure & Marine ; GS Yuasa UK – 12V 95Ah 850A(EN) - YBX Active® Leisure AGM series battery (L36-AGM product page) ; NCC Verified Leisure Battery Scheme October 2023 – Class A ; NCC Verified Leisure Battery Scheme March 2024 (Class A, B and C, web version) . Checked 2026-09-16. - Yuasa L36-EFB YBX Active Leisure EFB 12V 100Ah (efb; Not stated). Marketed as 100 Ah at C20. Published capacity: 100 Ah C20. Cycle life: No published cycle-life figure at a stated depth of discharge found (checked 16 September 2026).. DoD guidance: No published depth-of-discharge figure found (checked 16 September 2026).. Charge: , recommended 7 A. NCC: Class B NCC/VB/B/026, list 2023-10, 100 Ah, 223 cycles at 50% DoD (discharge rate not stated by the scheme). Sources: GS Yuasa UK – 12V 100Ah 850A(EN) - YBX Active® Leisure EFB series battery (L36-EFB product page) ; Yuasa Technical Data Sheet – Yuasa L36-EFB – YBX Active® Leisure & Marine ; GS Yuasa UK – 12V 100Ah 850A(EN) - YBX Active® Leisure EFB series battery (L36-EFB product page) ; Yuasa Technical Data Sheet – Yuasa L36-EFB – YBX Active® Leisure & Marine ; Yuasa Technical Data Sheet – Yuasa L36-EFB – YBX Active® Leisure & Marine ; GS Yuasa UK – 12V 100Ah 850A(EN) - YBX Active® Leisure EFB series battery (L36-EFB product page) ; NCC Verified Leisure Battery Scheme October 2023 – Class B ; NCC Verified Leisure Battery Scheme March 2024 (Class A, B and C, web version) . Checked 2026-09-16. ## Appliances - CBE MP2USBC double USB charging socket (USB-A + USB-C), 12 V input (usb_socket). Basis: No 12V figure published: the reader enters their own. Duty cycle: not published. No published 12 V current figure found (checked 16 September 2026). Sources: CBE MP2USBC product page . Checked 2026-09-16. - Dometic CoolMatic CRX 50 compressor fridge (compressor_fridge). Basis: Maker publishes Ah per hour at a stated ambient. 1.1 Ah/h at +25 C ambient, +5 C interior. Rated current 5 A (INTERLOCKED: compressor-running current, not a sizing figure). Duty cycle: not published. No published test standard found (checked 16 September 2026). Sources: Dometic catalogue page 118, 'Dometic CoolMatic CRX 50/50S / 65/65S' (section 4.24, Compressor refrigerators, 12 / 24 V DC) ; Dometic catalogue page 118, 'Dometic CoolMatic CRX 50/50S / 65/65S' (section 4.24, Compressor refrigerators, 12 / 24 V DC) ; Dometic CRX50, CRX65 Compressor refrigerator Installation and Operating Manual (4445102664) . Checked 2026-09-16. - Dometic CoolMatic CRX 65 compressor fridge (compressor_fridge). Basis: Maker publishes Ah per hour at a stated ambient. 1.14 Ah/h at +25 C ambient, +5 C interior. Rated current 5.5 A (INTERLOCKED: compressor-running current, not a sizing figure). Duty cycle: not published. No published test standard found (checked 16 September 2026). Sources: Dometic catalogue page 118, 'Dometic CoolMatic CRX 50/50S / 65/65S' (section 4.24, Compressor refrigerators, 12 / 24 V DC) ; Dometic catalogue page 118, 'Dometic CoolMatic CRX 50/50S / 65/65S' (section 4.24, Compressor refrigerators, 12 / 24 V DC) ; Dometic CRX50, CRX65 Compressor refrigerator Installation and Operating Manual (4445102664) . Checked 2026-09-16. - Dometic CoolMatic CRX 80 compressor fridge (compressor_fridge). Basis: Maker publishes Ah per hour at a stated ambient. 1.19 Ah/h at +25 C ambient, +5 C interior. Rated current 5.6 A (INTERLOCKED: compressor-running current, not a sizing figure). Duty cycle: not published. No published test standard found (checked 16 September 2026). Sources: Dometic catalogue page 120, 'Dometic CoolMatic CRX 80/80S / 110/110S' (section 4.24, Compressor refrigerators, 12 / 24 V DC) ; Dometic catalogue page 120, 'Dometic CoolMatic CRX 80/80S / 110/110S' (section 4.24, Compressor refrigerators, 12 / 24 V DC) ; Dometic CRX50, CRX65, CRX80, CRX110, CRX 140 Compressor refrigerator Installation and Operating Manual (4445102565) . Checked 2026-09-16. - Dometic RM 5330 3-way absorption fridge on 12 V (absorption_fridge). Basis: Maker publishes Ah per 24 h. 240 Ah/24h. Duty cycle: not published. No published statement found (checked 16 September 2026). Maker's notice shown before any number: "2.2 Safety when operating with DC power — NOTICE! Damage hazard. Only select operation with DC power supply (battery mode) if the vehicle engine is running and providing sufficient voltage to the light system, or if you are using a battery monitor." Sources: Dometic RM5310, RM5330, RM5380 Absorption refrigerator Installation and Operating Manual (4445102234) ; Dometic RM5310, RM5330, RM5380 Absorption refrigerator Installation and Operating Manual (4445102234) ; Dometic RM5310, RM5330, RM5380 Absorption refrigerator Installation and Operating Manual (4445102234) . Checked 2026-09-16. - Dometic RUA 5208X 3-way absorption fridge on 12 V (absorption_fridge). Basis: Maker publishes Ah per 24 h. 346 Ah/24h. Duty cycle: not published. Maker's notice shown before any number: "NOTICE! Damage hazard — Only select operation with DC power supply if the vehicle engine is running and providing sufficient voltage to the light system, or if you are using a battery monitor." Sources: Dometic RUA 5208X, RUA 6408X, RUA 8408X Absorption refrigerator Installation and Operating Manual (4445102445) ; Dometic RUA 5208X, RUA 6408X, RUA 8408X Absorption refrigerator Installation and Operating Manual (4445102445) ; Dometic RUA 5208X, RUA 6408X, RUA 8408X Absorption refrigerator Installation and Operating Manual (4445102445) ; Dometic RUA 5208X, RUA 6408X, RUA 8408X Absorption refrigerator Installation and Operating Manual (4445102445) . Checked 2026-09-16. - Dometic RUA 6408X 3-way absorption fridge on 12 V (absorption_fridge). Basis: Maker publishes Ah per 24 h. 400 Ah/24h. Duty cycle: not published. Maker's notice shown before any number: "NOTICE! Damage hazard — Only select operation with DC power supply if the vehicle engine is running and providing sufficient voltage to the light system, or if you are using a battery monitor." Sources: Dometic RUA 5208X, RUA 6408X, RUA 8408X Absorption refrigerator Installation and Operating Manual (4445102445) ; Dometic RUA 5208X, RUA 6408X, RUA 8408X Absorption refrigerator Installation and Operating Manual (4445102445) ; Dometic RUA 5208X, RUA 6408X, RUA 8408X Absorption refrigerator Installation and Operating Manual (4445102445) ; Dometic RUA 5208X, RUA 6408X, RUA 8408X Absorption refrigerator Installation and Operating Manual (4445102445) . Checked 2026-09-16. - Dometic RUA 8408X 3-way absorption fridge on 12 V (absorption_fridge). Basis: Maker publishes Ah per 24 h. 420 Ah/24h. Duty cycle: not published. Maker's notice shown before any number: "NOTICE! Damage hazard — Only select operation with DC power supply if the vehicle engine is running and providing sufficient voltage to the light system, or if you are using a battery monitor." Sources: Dometic RUA 5208X, RUA 6408X, RUA 8408X Absorption refrigerator Installation and Operating Manual (4445102445) ; Dometic RUA 5208X, RUA 6408X, RUA 8408X Absorption refrigerator Installation and Operating Manual (4445102445) ; Dometic RUA 5208X, RUA 6408X, RUA 8408X Absorption refrigerator Installation and Operating Manual (4445102445) ; Dometic RUA 5208X, RUA 6408X, RUA 8408X Absorption refrigerator Installation and Operating Manual (4445102445) . Checked 2026-09-16. - Eberspächer Airtronic S2 D2L diesel air heater (12 V) (diesel_heater). Basis: Only a rated figure is published: shown as an upper bound. Duty cycle: not published. No published start-up figure found (checked 16 September 2026). Sources: Eberspächer 'Airtronic S2 & M2 Commercial / M2 Recreational' technical documentation and operating instructions (29.2100.20.1046 Issue C) . Checked 2026-09-16. - Labcraft Megalux PD1 surface-mount LED interior light, 10-32 V (lighting). Basis: Maker publishes an average current. Average 0.48 A. Duty cycle: not published. Sources: Labcraft Megalux PD1 product page, specification table ; Labcraft 'Megalux' vehicle LED lighting datasheet (megalux_data_sheet.pdf) . Checked 2026-09-16. - Labcraft Orizon 500 mm LED strip light, 12 V (lighting). Basis: Maker publishes an average current. Average 0.48 A. Duty cycle: not published. Sources: Labcraft Orizon product page, specification table ; Labcraft Orizon product page, specification table . Checked 2026-09-16. - Shurflo Trail King 7 caravan water pump, 7 l/min 20 psi, 12 V (water_pump). Basis: Only a rated figure is published: shown as an upper bound. Rated current 3.3 A. Duty cycle: not published. No published 12 V current figure found (checked 16 September 2026). Sources: SHURflo Caravan PRODUCT SHEET OEM 2095-204-112 / Aftermarket 2095-204-412, Trail King 7 (PDS-2095-204-112) . Checked 2026-09-16. - Shurflo Trail King II RV/caravan fresh water pump, 12 V (water_pump). Basis: Only a rated figure is published: shown as an upper bound. Rated current 3 A. Duty cycle: not published. No published 12 V current figure found (checked 16 September 2026). Sources: Pentair 'SHURflo Trail King II RV/Caravan Fresh Water Pump – Product Technical Data Sheet' (4029-181-A43 [B43] Rev. 05/14) . Checked 2026-09-16. - Thetford T1090-E 12V compressor refrigerator (compressor_fridge). Basis: Maker publishes Ah per 24 h. 25.6 Ah/24h to IEC62552-2020 part 3. Duty cycle: not published. No published statement found (checked 16 September 2026). Sources: Thetford '12V Compressor refrigerators' product range sheet, 2026 range (7.1_Thetford_12V-Refrigerators_2026_EN_LR) ; Thetford '12V Compressor refrigerators' product range sheet, 2026 range (7.1_Thetford_12V-Refrigerators_2026_EN_LR) . Checked 2026-09-16. - Thetford T2095-E 12V compressor refrigerator (compressor_fridge). Basis: Maker publishes Ah per 24 h. 30 Ah/24h to IEC62552-2020 part 3. Duty cycle: not published. No published statement found (checked 16 September 2026). Sources: Thetford '12V Compressor refrigerators' product range sheet, 2026 range (7.1_Thetford_12V-Refrigerators_2026_EN_LR) ; Thetford '12V Compressor refrigerators' product range sheet, 2026 range (7.1_Thetford_12V-Refrigerators_2026_EN_LR) . Checked 2026-09-16. - Thetford T2120-C 12V compressor refrigerator (compressor_fridge). Basis: Maker publishes Ah per 24 h. 37 Ah/24h to IEC62552-2020 part 3. Duty cycle: not published. No published statement found (checked 16 September 2026). Sources: Thetford '12V Compressor refrigerators' product range sheet, 2026 range (7.1_Thetford_12V-Refrigerators_2026_EN_LR) ; Thetford '12V Compressor refrigerators' product range sheet, 2026 range (7.1_Thetford_12V-Refrigerators_2026_EN_LR) . Checked 2026-09-16. - Thetford T2138-C 12V compressor refrigerator (compressor_fridge). Basis: Maker publishes Ah per 24 h. 40 Ah/24h to IEC62552-2020 part 3. Duty cycle: not published. No published statement found (checked 16 September 2026). Sources: Thetford '12V Compressor refrigerators' product range sheet, 2026 range (7.1_Thetford_12V-Refrigerators_2026_EN_LR) ; Thetford '12V Compressor refrigerators' product range sheet, 2026 range (7.1_Thetford_12V-Refrigerators_2026_EN_LR) . Checked 2026-09-16. - Thetford T2152-C 12V compressor refrigerator (compressor_fridge). Basis: Maker publishes Ah per 24 h. 37.6 Ah/24h to IEC62552-2020 part 3. Duty cycle: not published. No published statement found (checked 16 September 2026). Sources: Thetford '12V Compressor refrigerators' product range sheet, 2026 range (7.1_Thetford_12V-Refrigerators_2026_EN_LR) ; Thetford '12V Compressor refrigerators' product range sheet, 2026 range (7.1_Thetford_12V-Refrigerators_2026_EN_LR) . Checked 2026-09-16. - Thetford T2160-C 12V compressor refrigerator (compressor_fridge). Basis: Maker publishes Ah per 24 h. 44 Ah/24h to IEC62552-2020 part 3. Duty cycle: not published. No published statement found (checked 16 September 2026). Sources: Thetford '12V Compressor refrigerators' product range sheet, 2026 range (7.1_Thetford_12V-Refrigerators_2026_EN_LR) ; Thetford '12V Compressor refrigerators' product range sheet, 2026 range (7.1_Thetford_12V-Refrigerators_2026_EN_LR) . Checked 2026-09-16. - Thetford T2175-C 12V compressor refrigerator (compressor_fridge). Basis: Maker publishes Ah per 24 h. 44.8 Ah/24h to IEC62552-2020 part 3. Duty cycle: not published. No published statement found (checked 16 September 2026). Sources: Thetford '12V Compressor refrigerators' product range sheet, 2026 range (7.1_Thetford_12V-Refrigerators_2026_EN_LR) ; Thetford '12V Compressor refrigerators' product range sheet, 2026 range (7.1_Thetford_12V-Refrigerators_2026_EN_LR) . Checked 2026-09-16. - Truma Combi 4 gas combination heater (12 V control side) (gas_heater). Basis: Maker publishes an average current. Average 1.2 A. Peak 6.5 A. Duty cycle: not published. Sources: Truma Combi 4 product page, 'Technical Details' ; Truma Combi 4 product page, 'Technical Details' ; Truma Combi 4 product page, 'Technical Details' . Checked 2026-09-16. - Truma Combi D 6 E diesel combination heater (12 V control side) (diesel_heater). Basis: Maker publishes a control range, so the answer is a range. Control range 1.8-4 A. Duty cycle: not published. Sources: Truma Combi D 6 E product page, 'Technical Details' ; Truma Combi D 6 E product page, 'Technical Details' . Checked 2026-09-16. - Victron Phoenix Inverter 12/1200 VE.Direct (inverter). Basis: Inverter: published maximum efficiency and zero-load draw applied. Max efficiency 91% (a maximum, no curve published), zero-load 10 W. Duty cycle: not published. Sources: Victron Energy 'Inverters VE.Direct 250VA – 1600VA, 230V and 120V, 50Hz or 60Hz' datasheet ; Victron Energy 'Inverters VE.Direct 250VA – 1600VA, 230V and 120V, 50Hz or 60Hz' datasheet ; Victron Energy 'Inverters VE.Direct 250VA – 1600VA, 230V and 120V, 50Hz or 60Hz' datasheet ; Victron Energy 'Inverters VE.Direct 250VA – 1600VA, 230V and 120V, 50Hz or 60Hz' datasheet . Checked 2026-09-16. - Victron Phoenix Inverter 12/500 VE.Direct (inverter). Basis: Inverter: published maximum efficiency and zero-load draw applied. Max efficiency 90% (a maximum, no curve published), zero-load 6 W. Duty cycle: not published. Sources: Victron Energy 'Inverters VE.Direct 250VA – 1600VA, 230V and 120V, 50Hz or 60Hz' datasheet ; Victron Energy 'Inverters VE.Direct 250VA – 1600VA, 230V and 120V, 50Hz or 60Hz' datasheet ; Victron Energy 'Inverters VE.Direct 250VA – 1600VA, 230V and 120V, 50Hz or 60Hz' datasheet ; Victron Energy 'Inverters VE.Direct 250VA – 1600VA, 230V and 120V, 50Hz or 60Hz' datasheet . Checked 2026-09-16. - Vitrifrigo C51i CHR compressor fridge-freezer (consumption not published) (compressor_fridge). Basis: No 12V figure published: the reader enters their own. Duty cycle: not published. No published 12 V current figure found (checked 16 September 2026). No published daily consumption figure found (checked 16 September 2026). Sources: . Checked 2026-09-16. - Webasto Air Top 2000 STC diesel air heater (12 V) (diesel_heater). Basis: Maker publishes a control range, so the answer is a range. Control range 15-30 W. Start-up 75 W, duration NOT published; excluded from Ah totals. Duty cycle: not published. No published statement found (checked 16 September 2026). Sources: Webasto 'Air Top 2000 STC – The simple and cost-effective solution' datasheet (07/24) ; Webasto 'Air heaters for the RV market – Air Top 2000 STC and Air Top Evo 40 / 55' datasheet (08/24) ; Webasto 'Air Heater Air Top 2000 STC B (Gasoline) / Air Top 2000 STC D (Diesel) Installation Manual' (P/N 5012634C, Org. 08/2017 Rev. 11/2021, www.webasto.us) . Checked 2026-09-16. - Whale Premium submersible pump GP1352, 12 V (water_pump). Basis: Maker publishes an average current. Average 3.6 A. Duty cycle: not published. Sources: Whale RV Catalogue (Navico Group), page 12, 'Submersible Pump Range' ; Whale RV Catalogue (Navico Group), page 12, 'Submersible Pump Range' . Checked 2026-09-16. - Whale Watermaster exterior water pump EP1612, 12 V (water_pump). Basis: Maker publishes an average current. Average 3.8 A. Duty cycle: not published. Sources: Whale RV Catalogue (Navico Group), page 16, 'Watermaster Exterior Water Pump Range' ; Whale RV Catalogue (Navico Group), page 16, 'Watermaster Exterior Water Pump Range' . Checked 2026-09-16. ## Mains chargers - CTEK CS ONE (Gen 2): 8 A; stages not stated; profiles published for flooded_lead_acid ("12 V: WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO4 (APTO adaptive; no voltage published)"), calcium ("12 V: WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO4"), agm ("12 V: WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO4"), efb ("12 V: WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO4"), gel ("12 V: WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO4"), lifepo4 ("APTO technology automatically adapts charging to any 12V battery, including lithium* — *) 12V lithium batteries (LiFePO4, Li-Fe, Li-iron, LFP)"); lithium profile published_but_unspecified; selection automatic; maker's warning: "WARNING! Do not apply RECOND mode on the following types of batteries: - Lithium: LiFePO4 - Lead Acid: GEL or AGM". Sources: CTEK CS ONE (GEN 2) product sheet (UK-EN) ; CTEK CS ONE (GEN 2) product sheet (UK-EN) ; CTEK CS ONE (GEN 2) product sheet (UK-EN) ; CTEK CS ONE (GEN 2) User Manual (multilingual) ; CTEK CS ONE (GEN 2) product sheet (UK-EN) ; CTEK CS ONE (GEN 2) product sheet (UK-EN) ; CTEK CS ONE (GEN 2) product sheet (UK-EN) ; CTEK CS ONE (GEN 2) User Manual (multilingual) ; CTEK CS ONE (GEN 2) User Manual (multilingual) ; CTEK — CS ONE (Gen 2) UK product page . Checked 2026-09-16. - CTEK LITHIUM XS: 5 A; stages 8 step, fully automatic charging cycle; profiles published for lifepo4 ("Charging voltage 13.8/14.4 VDC; Battery types 12V LiFePO4 batteries; FLOAT 13.6V"); lithium profile published; selection fixed; maker's warning: "The LITHIUM XS charger model is designed for Lithium-ion batteries using LiFePO4 technology only. Please check with the battery manufacturer for details. Do not use the LITHIUM XS charger for any other battery technology.". Sources: CTEK LITHIUM XS Manual (UK-EN) ; CTEK LITHIUM XS Manual (UK-EN) ; CTEK LITHIUM XS Manual (UK-EN) ; CTEK LITHIUM XS Manual (UK-EN) ; CTEK LITHIUM XS Manual (UK-EN) ; CTEK LITHIUM XS Manual (UK-EN) ; CTEK LITHIUM XS Manual (UK-EN) ; CTEK LITHIUM XS Manual (UK-EN) ; CTEK — LITHIUM XS UK product page . Checked 2026-09-16. - CTEK MXS 10: 10 A; stages Fully automatic 'connect and forget' 8 step charging; profiles published for flooded_lead_acid ("Charging voltage 14.4/14.7/15.8/13.6 V; Battery types 12 V: WET, MF, Ca/Ca, AGM, GEL. The product page does not label which voltage belongs to which program."), calcium ("12 V: WET, MF, Ca/Ca, AGM, GEL"), agm ("12 V: WET, MF, Ca/Ca, AGM, GEL; 'an AGM option'"), gel ("12 V: WET, MF, Ca/Ca, AGM, GEL"); lithium profile absent (No published lithium charge profile found (checked 16 September 2026).); selection manual; maker's warning: "The charger is designed for charging only batteries according to the technical specification. Do not use the charger for any other purpose. Always follow battery manufacturers' user and safety recommendations.". Sources: CTEK — MXS 10 UK product page ; CTEK — MXS 10 UK product page ; CTEK — MXS 10 UK product page ; CTEK — MXS 10 UK product page ; CTEK — MXS 10 UK product page ; CTEK — MXS 10 UK product page ; CTEK — MXS 10 UK product page ; CTEK — MXS 10 UK product page ; CTEK MXS 10 Manual (UK-EN) — safety page ; CTEK — MXS 10 UK product page . Checked 2026-09-16. - CTEK MXS 5.0: 5 A; stages 8 step, fully automatic charging cycle; profiles published for flooded_lead_acid ("Normal battery program 14.4V/5A. Use for WET batteries, Ca/Ca, MF, GEL batteries and many AGM batteries."), calcium ("Normal battery program 14.4V/5A (Ca/Ca); Recond option 15.8V/1.5A. Use to return energy to the empty WET and Ca/Ca batteries."), gel ("Normal battery program 14.4V/5A. Use for WET batteries, Ca/Ca, MF, GEL batteries and many AGM batteries."), agm ("AGM option 14.7V/5A. Use for charging most AGM batteries like Optima and Odyssey."); lithium profile absent (No published lithium charge profile found (checked 16 September 2026).); selection manual; maker's warning: "The charger is designed for charging only for batteries according to the technical specification. Do not use the charger for any other purpose. Always follow battery manufacturers recommendations.". Sources: CTEK MXS 5.0 Manual (UK-EN) ; CTEK MXS 5.0 Manual (UK-EN) ; CTEK MXS 5.0 Manual (UK-EN) ; CTEK MXS 5.0 Manual (UK-EN) ; CTEK MXS 5.0 Manual (UK-EN) ; CTEK MXS 5.0 Manual (UK-EN) ; CTEK MXS 5.0 Manual (UK-EN) ; CTEK MXS 5.0 Manual (UK-EN) ; CTEK — MXS 5.0 UK product page . Checked 2026-09-16. - Halfords Smart Battery Charger 6A: 6 A; stages 7-stage charging cycle for lithium batteries and a 9-stage cycle for lead acid/AGM batteries; profiles published for flooded_lead_acid ("a 9-stage cycle for lead acid/AGM batteries"), agm ("a 9-stage cycle for lead acid/AGM batteries"), lifepo4 ("a 7-stage charging cycle for lithium batteries"); lithium profile published_but_unspecified; selection unstated. Sources: Halfords — Choose the right battery charger for your car ; Halfords — Choose the right battery charger for your car ; Halfords — Choose the right battery charger for your car ; Halfords — Choose the right battery charger for your car ; Halfords — Choose the right battery charger for your car . Checked 2026-09-16. - NOCO Genius10 UK: 10 A; stages not stated; profiles published for flooded_lead_acid ("12V: 14.5V | 10A | Up To 230AH Batteries (Wet Cell, Gel Cell, Enhanced Flooded, Maintenance-Free and Calcium)"), gel ("12V: 14.5V | 10A | Up To 230AH Batteries"), efb ("12V: 14.5V | 10A | Up To 230AH Batteries"), calcium ("12V: 14.5V | 10A | Up To 230AH Batteries"), agm ("12V AGM: 14.8V | 10A | Up To 230AH Batteries"), lifepo4 ("12V LITHIUM: 14.6V | 10A | Up To 230AH Batteries"); lithium profile published; selection manual; maker's warning: "CAUTION. USE THIS MODE WITH EXTREME CARE. THIS MODE SHOULD ONLY BE USED WITH 12-VOLT LITHIUM BATTERIES THAT HAVE A BUILT-IN BATTERY MANAGEMENT SYSTEM (BMS).". Sources: NOCO GENIUS10 User Guide & Warranty ; NOCO GENIUS10 User Guide & Warranty ; NOCO GENIUS10 User Guide & Warranty ; NOCO GENIUS10 User Guide & Warranty ; NOCO GENIUS10 User Guide & Warranty ; NOCO — GENIUS10 product page ; NOCO GENIUS10 User Guide & Warranty ; NOCO GENIUS10 User Guide & Warranty ; NOCO GENIUS10 User Guide & Warranty ; Tayna Batteries — NOCO GENIUS10UK 10A Ultrasafe 6V/12V Battery Charger and Maintainer . Checked 2026-09-16. - NOCO Genius5 UK: 5 A; stages not stated; profiles published for flooded_lead_acid ("12V: For charging 12-volt Wet Cell, Gel Cell, Enhanced Flooded, Maintenance-Free and Calcium batteries. 14.5V | 5A | Up To 120Ah Batteries"), gel ("12V: 14.5V | 5A | Up To 120Ah Batteries (Gel Cell named)"), efb ("12V: 14.5V | 5A | Up To 120Ah Batteries (Enhanced Flooded named)"), calcium ("12V: 14.5V | 5A | Up To 120Ah Batteries (Calcium named)"), agm ("12V AGM: For charging 12-volt AGM batteries. 14.8V | 5A | Up To 120Ah Batteries"), lifepo4 ("12V LITHIUM: For charging 12-volt lithium-ion batteries, including lithium iron phosphate. For use on batteries with Battery Management Systems (BMS) only. 14.6V | 5A | Up To 120Ah Batteries"); lithium profile published; selection manual; maker's warning: "CAUTION. USE THIS MODE WITH EXTREME CARE. THIS MODE SHOULD ONLY BE USED WITH 12-VOLT LITHIUM BATTERIES THAT HAVE A BUILT-IN BATTERY MANAGEMENT SYSTEM (BMS). LITHIUM-ION BATTERIES ARE MADE AND CONSTRUCTED IN DIFFERENT WAYS AND SOME MAY OR MAY NOT CONTAIN A BATTERY MANAGEMENT SYSTEM (BMS). CONSULT THE LITHIUM BATTERY MANUFACTURER BEFORE CHARGING AND ASK FOR RECOMMENDED CHARGING RATES AND VOLTAGES. SOME LITHIUM-ION BATTERIES MAY BE UNSTABLE AND UNSUITABLE FOR CHARGING.". Sources: NOCO GENIUS5 User Guide & Warranty ; NOCO GENIUS5 User Guide & Warranty ; NOCO GENIUS5 User Guide & Warranty ; NOCO GENIUS5 User Guide & Warranty ; NOCO — GENIUS5 product page ; NOCO GENIUS5 User Guide & Warranty ; NOCO GENIUS5 User Guide & Warranty ; NOCO GENIUS5 User Guide & Warranty ; Tayna Batteries — NOCO GENIUS5UK 5A Ultrasafe 6V / 12V Battery Charger and Maintainer . Checked 2026-09-16. - OptiMate 6 Ampmatic: 5 A; stages 9-step 12V 5A sealed battery saving charger & maintainer; profiles published for flooded_lead_acid ("1 x 12V STD / AGM-MF / GEL; CHARGE 14.4V; Float voltage setting: 13.6V"), agm ("STD / AGM-MF / GEL (single automatic program)"), gel ("STD / AGM-MF / GEL (single automatic program)"); lithium profile absent (No published lithium charge profile found (checked 16 September 2026).); selection fixed; maker's warning: "DO NOT USE FOR NiCd, NiMH, Li-Ion OR NON-RECHARGEABLE BATTERIES.". Sources: OptiMate 6 Ampmatic — Instructions for use (TM180/TM181/TM182/TM188/TM189) ; OptiMate — OptiMate 6 Ampmatic product page ; OptiMate 6 Ampmatic — Instructions for use ; OptiMate 6 Ampmatic — Instructions for use ; OptiMate 6 Ampmatic — Instructions for use ; OptiMate 6 Ampmatic — Instructions for use ; OptiMate 6 Ampmatic — Instructions for use ; OptiMate 6 Ampmatic — Instructions for use ; OptiMate 6 Ampmatic — Instructions for use ; OptiMate — OptiMate 6 Ampmatic product page . Checked 2026-09-16. - OptiMate Lithium 4s 5A: 5 A; stages 10 STEPS; profiles published for lifepo4 ("1 x 12.8V (4 x 3.2V cells) LiFePO4; program chart 14.4V / 13.6V; leaflet: 'voltage controlled between 14.0 and 14.3V' (absorption pulses), 'float charge periods at a voltage of 13.6V'"); lithium profile published; selection fixed; maker's warning: "AUTOMATIC CHARGER ONLY FOR 12.8V LIFEPO4 (LITHIUM IRON PHOSPHATE ) BATTERIES. A rechargeable LIFEPO4 battery should comply with IEC62133*. DO NOT USE FOR NiCd, NiMH, Lead-Acid or any other type of Li-Ion or". Sources: OptiMate Lithium 4s 5A — Instructions for use (TM290/TM291/TM294/TM298) ; OptiMate lithium 5A product leaflet (TM290-5A-PL-150513_ALL) ; OptiMate Lithium 4s 5A — Instructions for use ; OptiMate Lithium 4s 5A — Instructions for use ; OptiMate lithium 5A product leaflet ; OptiMate Lithium 4s 5A — Instructions for use ; OptiMate lithium 5A product leaflet ; OptiMate Lithium 4s 5A — Instructions for use ; OptiMate lithium 5A product leaflet ; OptiMate Lithium 4s 5A — Instructions for use ; OptiMate — OptiMate Lithium 4s 5A product page . Checked 2026-09-16. - Ring SmartChargePro 25 (RSCPR25): 25 A; stages The Ring Automotive SmartChargepro range are all Multi-Stage battery chargers. (eight numbered stages: Desulphation, Soft start, Bulk charge, Absorption, Equalisation, Battery test, Recondition, Float); profiles published for gel ("Gel — Designed for Gel batteries and applies a maximum charge of 14.1v (RSCPR824: 28.2v)"), agm ("AGM — Designed for AGM batteries and applies a maximum charge of 14.4v (RSCPR824: 28.8v)"), flooded_lead_acid ("Lead Acid (Wet) — Bulk and absorption 14.7v (RSCPR824: 29.4v), recondition up to 16v (RSCPR824: 32v)"), calcium ("Calcium — Bulk and absorption 14.7v (RSCPR824: 29.4v), Equalisation and Recondition up to 16v (RSCPR824: 32v)"); lithium profile absent (No published lithium charge profile found (checked 16 September 2026).); selection manual; maker's warning: "In addition to the battery types and capacity detailed in the specifications, the charger is suitable for the following only: • Charging only a single battery at any one time • Charging rechargeable lead acid (wet), Gel, AGM and calcium batteries with 6 cells". Sources: Ring SmartChargePro Instructions (RSCPR7/10/15/25/35/50/824) ; Ring SmartChargePro Instructions (RSCPR7/10/15/25/35/50/824) ; Ring SmartChargePro Instructions (RSCPR7/10/15/25/35/50/824) ; Ring SmartChargePro Instructions (RSCPR7/10/15/25/35/50/824) ; Ring SmartChargePro Instructions (RSCPR7/10/15/25/35/50/824) ; Ring SmartChargePro Instructions (RSCPR7/10/15/25/35/50/824) ; Ring SmartChargePro Instructions (RSCPR7/10/15/25/35/50/824) . Checked 2026-09-16. - Sargent EC155 on-board charger / power supply: 12 A; stages fixed voltage battery charger / power converter ... supplies 13.8V DC; profiles published for flooded_lead_acid ("The EC155PSU is designed to charge standard lead acid leisure batteries ... This module supplies 13.8V DC to the leisure equipment up to a maximum of 12 Amps (155 Watts)"); lithium profile absent (No published lithium charge profile found (checked 16 September 2026).); selection fixed; maker's warning: "For optimum performance and safety it is essential that only a proprietary brand LEISURE battery is used with a typical capacity of 75 to 120 Ah (Ampere / hours). A normal car battery is NOT suitable.". Sources: Sargent EC155 Power Control System — User Instructions, Issue 2 ; Sargent EC155 Power Control System — User Instructions, Issue 2 ; Sargent EC155 Power Control System — User Instructions, Issue 2 ; Sargent EC155 Power Control System — User Instructions, Issue 2 ; Sargent EC155 Power Control System — User Instructions, Issue 2 ; Sargent EC155 Power Control System — User Instructions, Issue 2 ; Sargent Electrical — EC155 Power Supply Unit . Checked 2026-09-16. - Sterling Power Pro Charge Ultra PCU1220 (12V 20A): 20 A; stages multi stage charge performance ... (IE, Fast charge, absorption, float, etc); profiles published for flooded_lead_acid ("Open | Sealed lead 14.8 VDC 13.6 VDC"), agm ("AGM 14.3 VDC 13.3 VDC"), gel ("GEL 14.0 VDC 13.7 VDC"), lifepo4 ("Lithium 0 deg C ** 14.25VDC 13.5 VDC; Lithium 0 deg C ** 14.4 VDC 13.8 VDC; CUSTOM - Li (**Lithium battery charging must be used in conjunction with a battery balancer)"), calcium ("Calcium / Custom 15.1 VDC 13.6 VDC"); lithium profile published; selection manual; maker's warning: "Charging a battery at an incorrect voltage could cause damage or degradation to your system. If you are unsure, please consult your battery manufacturer. If you are charging multiple battery banks that all have different chemistries and recommended charge voltages, please charge all banks at the lowest common charge voltages.". Sources: Sterling Power Pro Charge Ultra Instructions (2022+ model) ; Sterling Power Pro Charge Ultra Instructions (2022+ model) ; Sterling Power Pro Charge Ultra Instructions (2022+ model) ; Sterling Power Pro Charge Ultra Instructions (2022+ model) ; Sterling Power Pro Charge Ultra Instructions (2022+ model) ; Sterling Power — PCU1220 product page ; Sterling Power Pro Charge Ultra Instructions (2022+ model) ; Sterling Power — PCU1220 product page . Checked 2026-09-16. - Victron Blue Smart IP22 Charger 12/20 (1): 20 A; stages 6-stage adaptive (3 stage for Li-ion); profiles published for flooded_lead_acid ("MODE button to set: NORMAL (14,4 V) / HIGH (14,7 V) / RECONDITION / LI-ION. Float Normal: 13,8 V High: 13,8 V. Victron names the modes Normal/High rather than by chemistry."), agm ("Normal: 14,4 V High: 14,7 V (absorption); Normal: 13,8 V High: 13,8 V (float). No mode is assigned to AGM specifically."), gel ("Normal: 14,4 V High: 14,7 V (absorption); Normal: 13,8 V High: 13,8 V (float). No mode is assigned to Gel specifically."), lifepo4 ("Li-ion: 14,2 V (absorption); Li-ion: 13,5 V (float); Li-ion: 13,5 V (storage). HTML manual table gives Li-ion float 'N/A', storage 13.5V."); lithium profile published; selection manual; maker's warning: "To ensure proper charging, battery longevity and safe operation it is important to select a charge mode appropriate for the battery type and capacity being charged; refer to the 'Operation > Charge modes' section and the battery manufacturer's recommendations for more information.". Sources: Blue Smart IP22 Charger 230 VAC datasheet ; Blue Smart IP22 Charger 230 VAC datasheet ; Blue Smart IP22 Charger manual — Technical specifications ; Blue Smart IP22 Charger 230 VAC datasheet ; Blue Smart IP22 Charger 230 VAC datasheet ; Blue Smart IP22 Charger 230 VAC datasheet ; Blue Smart IP22 Charger 230 VAC datasheet ; Blue Smart IP22 Charger manual — Technical specifications ; Blue Smart IP22 Charger 230 VAC datasheet ; Blue Smart IP22 Charger 230 VAC datasheet ; Blue Smart IP22 Charger manual — Setup ; Simply Split Charge — Victron Energy BPC122042022 Smart Bluetooth IP22 Battery Charger 12V 20A 1 Output . Checked 2026-09-16. - Victron Blue Smart IP65 Charger 12/15: 15 A; stages 7-stage adaptive (4 stage for Li-ion); profiles published for flooded_lead_acid ("Charge voltage 'absorption' Normal: 14,4 V | High: 14,7 V; Charge voltage 'float' Normal: 13,8 V | High: 13,8 V. Victron names the modes Normal/High rather than by chemistry; flooded lead-acid is named as suited to the integrated modes."), agm ("Normal: 14,4 V | High: 14,7 V (absorption); 13,8 V (float). AGM is named as suited to the integrated modes; no mode is assigned to AGM specifically."), gel ("Normal: 14,4 V | High: 14,7 V (absorption); 13,8 V (float). Gel is named as suited to the integrated modes; no mode is assigned to Gel specifically."), lifepo4 ("Li-ion: 14,2 V (absorption); Li-ion: 13,5 V (float, datasheet) — the HTML manual table gives float 'N/A' and storage 13.5V for Li-ion."); lithium profile published; selection manual; maker's warning: "To ensure proper charging, battery longevity and safe operation it is important to select a charge mode appropriate for the battery type and capacity being charged; refer to the 'Operation > Charge modes' section and the battery manufacturer's recommendations for more information.". Sources: Blue Smart IP65 Charger datasheet (230 VAC) ; Blue Smart IP65 Charger manual — Technical specifications ; Blue Smart IP65 Charger datasheet (230 VAC) ; Blue Smart IP65 Charger datasheet (230 VAC) ; Blue Smart IP65 Charger manual — Safety instructions ; Blue Smart IP65 Charger datasheet (230 VAC) ; Blue Smart IP65 Charger manual — Safety instructions ; Blue Smart IP65 Charger manual — Operation ; Blue Smart IP65 Charger datasheet (230 VAC) ; Blue Smart IP65 Charger datasheet (230 VAC) ; Blue Smart IP65 Charger manual — Setup ; 12 Volt Planet — Victron Energy Blue Smart IP65 Charger - 12V 15A . Checked 2026-09-16. - Victron Blue Smart IP67 Charger 12/25 (1): 25 A; stages 5-stage adaptive; profiles published for flooded_lead_acid ("Normal: 14,4 V High: 14,7 V (absorption); Normal: 13,8 V High: 13,8 V (float). Victron names the modes Normal/High rather than by chemistry."), agm ("Normal: 14,4 V High: 14,7 V (absorption); 13,8 V (float). No mode is assigned to AGM specifically."), gel ("Normal: 14,4 V High: 14,7 V (absorption); 13,8 V (float). No mode is assigned to Gel specifically."), lifepo4 ("Li-ion: 14,2 V (absorption); Li-ion: 13,5 V (float); Li-ion: 13,5 V (storage). HTML manual table gives Li-ion float 'N/A', storage 13.5V."); lithium profile published; selection app; maker's warning: "To ensure proper charging, battery longevity and safe operation it is important to select a charge mode appropriate for the battery type and capacity being charged; refer to the 'Operation > Charge modes' section and the battery manufacturer's recommendations for more information.". Sources: Blue Smart IP67 Charger 230 VAC datasheet ; Blue Smart IP67 Charger 230 VAC datasheet ; Blue Smart IP67 Charger 230 VAC datasheet ; Blue Smart IP67 Charger manual — Technical specifications ; Blue Smart IP67 Charger 230 VAC datasheet ; Blue Smart IP67 Charger 230 VAC datasheet ; Blue Smart IP67 Charger manual — Technical specifications ; Blue Smart IP67 Charger 230 VAC datasheet ; Blue Smart IP67 Charger manual — Setup ; 12 Volt Planet — Victron Energy Blue Smart IP67 Waterproof Charger - 12V 25A . Checked 2026-09-16. - Victron Skylla-IP44 12/60 (1+1): 60 A; stages 7 stage adaptive (lead-acid); 'Charge algorithm, Li-Ion 3 stage, with on-off control or CAN bus control' (datasheet) / 'Four stage charge curve for Lithium Iron Phosphate (LiFePo4) batteries' (manual); profiles published for gel ("1 Gel Victron long life (OPzV) / Gel exide A600 (OPzV) / Gel MK — 12 V 14,1 / 13,8 / 13,2"), agm ("2 Default setting — Gel Victron deep discharge, Gel Exide A200 / AGM Victron deep discharge / Stationary tubular plate (OPzS) / Rolls Marine (flooded), Rolls Solar (flooded) — 12 V 14,4 / 13,8 / 13,2; 3 AGM spiral cell / Rolls AGM — 12 V 14,7 / 13,8 / 13,2"), flooded_lead_acid ("2 Default setting — ... Rolls Marine (flooded), Rolls Solar (flooded) — 12 V 14,4 / 13,8 / 13,2"), lifepo4 ("7 Lithium Iron Phosphate (LiFePo4) batteries — 12 V absorption 14,2, float n.a., storage 13,50; 'Constant current is applied until absorption voltage is reached (14,2 V / 28,4 V).'"); lithium profile published; selection manual; maker's warning: "Before the main battery is connected to the charger, make sure the charger is set to the correct battery type.". Sources: Skylla-IP44 Battery Charger datasheet ; Skylla-IP44 Battery Charger datasheet ; Skylla-IP44 Manual (EN NL FR DE ES IT) ; Skylla-IP44 Manual (EN NL FR DE ES IT) ; Skylla-IP44 Manual (EN NL FR DE ES IT) ; Skylla-IP44 Battery Charger datasheet ; Skylla-IP44 Manual (EN NL FR DE ES IT) ; Skylla-IP44 Battery Charger datasheet ; Skylla-IP44 Manual (EN NL FR DE ES IT) ; Skylla-IP44 Battery Charger datasheet ; Skylla-IP44 Manual (EN NL FR DE ES IT) ; Skylla-IP44 Manual (EN NL FR DE ES IT) . Checked 2026-09-16. ## DC-DC chargers - CTEK D250SE dual input 20A DC-DC charger with MPPT: 20 A; input 11.5-23 V; trigger either; lithium profile published; MPPT input true; smart alternator statement: "The D250SE can maintain a stable output up to 20A to vehicles fitted with smart ECU controlled alternators and also has a temperature sensor for optimised charging, regardless of weather conditions."; lithium statement: "The D250SE and SMARTPASS 120S have been developed for 12V lead-acid and LFP batteries. Do not use the unit for any other type of battery."; maker's cable/fuse table . Checked 2026-09-16. - REDARC BCDC1225D dual input 25A in-vehicle DC-DC battery charger: 25 A; input 9-32 V; trigger either (Input Mode Standard, Blue Wire Connection Not Connected, or Connected to Ground: 12 V Mode ON above 12.9 V OFF below 12.7 V. Input Mode Low Voltage, Blue Wire Connection D+ for Idle-Stop, 'Ignition' for others: 12 V Mode ON above 12.0 V OFF below 11.9 V. *1 Tested every 100 seconds); lithium profile published; MPPT input true; smart alternator statement: "NOTE: The REDARC BCDC Series In-Vehicle chargers are suitable for use on vehicles with conventional alternator charging systems, including standard, variable voltage and idle stop type alternators."; lithium statement: "When using the Battery Charger to charge a Lithium Iron Phosphate (LiFePO4) battery, only batteries with an inbuilt battery management system with under and over voltage protection and cell balancing are suitable."; maker's cable/fuse table . Checked 2026-09-16. - Ring Automotive RSCDC30 DC-DC Smart Battery Charger 30A: 30 A; input 12.6-50 V; trigger unstated; lithium profile published_but_unspecified; MPPT input true; smart alternator statement: "It also has a programmable input voltage range to allow compatibility with smart alternators."; lithium statement: No published statement on lithium batteries found (checked 16 September 2026).; maker's cable/fuse table not published. Checked 2026-09-16. - Sterling Power Pro Batt Ultra BB1230 12V-12V 30A battery to battery charger: 30 A; input 11-20 V; trigger either (The unit, by default, shall start charging when the input voltage exceeds 13.2V and switches off when the voltage drops below 13.0V for more than 240s (adjustable). Going above 13.2V for 5 seconds shall reset this timer.); lithium profile published; MPPT input ; smart alternator statement: "This is required to complement the regenerative braking aspect of modern Euro 5/6+ engines - where the alternator's voltage can drop below 13V for a short period of time. When the alternator's voltage rises above 13.2V the 240 second timer ends (+ reactivates the timer) and the charger remains charging."; lithium statement: "Lithium batteries present a few extra challenges due to the lithium safety BMS protocol in conflict with our safety protocol. I.e. if your lithium battery becomes sufficiently discharged then the battery will totally isolate your lithium battery effectively removing it from the charging circuit and, as such, presenting our Pro Batt Ultra with 0V."; maker's cable/fuse table . Checked 2026-09-16. - Victron Energy Orion-Tr Smart 12/12-30A Isolated DC-DC charger: 30 A; input 8-17 V; trigger either (Delayed start voltage (Vstart(delay)) ... Default: 13.3V (Smart Alternator) and 13.8 (Regular Alternator). Shutdown voltage (Vshutdown) ... Default: 13.1V (Smart Alternator) and 13.5V (Regular Alternator). Start voltage (Vstart): At this level, charging starts immediately. Default: 14V. Delayed start voltage delay (tstart delay) ... Default: 2 minutes.); lithium profile published; MPPT input ; smart alternator statement: "Vehicle manufacturers are now introducing smart ECU (Engine Control Unit) controlled alternators to increase fuel efficiency and reduce emissions. Smart alternators deliver a variable output voltage and are shut down when they're not needed. The converter has an engine-running detection mechanism. This prevents the converter from discharging the starter battery when the alternator does not supply power."; lithium statement: "Controlled charging will also protect the alternator in lithium systems where direct charging can overload the alternator due to the low impedance of the lithium battery."; maker's cable/fuse table . Checked 2026-09-16. - Victron Energy Orion XS 12/12-50A DC-DC battery charger: 50 A; input 9-17 V; trigger either (Delayed start voltage (Vstart(delay)) ... Default: 13.3V/26.6V (smart alternator) and 13.8/27.4V (regular alternator). Shutdown voltage (Vshutdown) ... Default: 13.1V/26.2V (smart alternator) and 13.5V/27V (regular alternator). Start voltage (Vstart): At this level, charging starts immediately. Default: 14V/28V. Delayed start voltage delay (tstart delay) ... Default: 120 seconds.); lithium profile published; MPPT input ; smart alternator statement: "It is common for vehicle manufacturers to install "smart" ECU (Engine Control Unit) controlled alternators to increase fuel efficiency and reduce emissions. Smart alternators provide variable output voltage and shut down when not needed. The Orion XS has an integrated mechanism that detects whether the engine is running (engine shutdown detection), so the charger is only activated when the alternator is supplying power."; lithium statement: "Controlled charging also protects the alternator in lithium systems from overloading, as the low impedance of lithium batteries results in a high alternator current."; maker's cable/fuse table . Checked 2026-09-16. ## Split charge relays - Durite 0-727-10 12V 100A extra heavy duty make/break relay: relays, 100 A; engage not published V, disengage not published V; smart alternator statement: No published statement on smart or variable-voltage alternators found (checked 16 September 2026).; lithium statement: No published statement on lithium batteries found (checked 16 September 2026).; maker's diagram https://www.durite.co.uk/amfile/file/download/file/3652/product/3686/. Checked 2026-09-16. - Durite 0-727-23 12V 70/20A double contact split charge relay: relays, 70 A; engage not published V, disengage not published V; smart alternator statement: No published statement on smart or variable-voltage alternators found (checked 16 September 2026).; lithium statement: No published statement on lithium batteries found (checked 16 September 2026).; maker's diagram https://www.durite.co.uk/amfile/file/download/file/3656/product/3699/. Checked 2026-09-16. - Durite 0-727-33 12V 140A voltage sensitive relay: relays, 140 A; engage 13.3 V, disengage 12.65 V; smart alternator statement: No published statement on smart or variable-voltage alternators found (checked 16 September 2026).; lithium statement: No published statement on lithium batteries found (checked 16 September 2026).; maker's diagram https://www.durite.co.uk/amfile/file/download/file/3658/product/3707/. Checked 2026-09-16. - Durite 0-727-43 12V 200A Smart Programmable Voltage Sensitive Relay: relays, 200 A; engage not published V, disengage not published V; smart alternator statement: "The Durite Smart Relay has been designed to be used with the latest range of vehicles fitted with smart alternators and regenerative braking systems. In addition, there are 9 available programmes allowing the user to set the charging/protection voltages to suit their requirements."; lithium statement: No published statement on lithium batteries found (checked 16 September 2026).; maker's diagram https://www.durite.co.uk/amfile/file/download/file/3662/product/3713/. Checked 2026-09-16. - Victron Energy Cyrix-ct 12/24V 120A intelligent battery combiner: relays, 120 A; engage 13 V, disengage 12.8 V; smart alternator statement: No published statement on smart or variable-voltage alternators found (checked 16 September 2026).; lithium statement: No published statement on lithium batteries found (checked 16 September 2026).; maker's diagram https://www.victronenergy.com/upload/documents/Datasheet-Cyrix-ct-120A-230A-EN.pdf. Checked 2026-09-16. - Victron Energy Cyrix-Li-ct 12/24V 120A lithium battery combiner: relays, 120 A; engage 13.4 V, disengage 13.2 V; smart alternator statement: No published statement on smart or variable-voltage alternators found (checked 16 September 2026).; lithium statement: "The functionality of the Cyrix-Li-ct is analogous to the Cyrix-ct. The Cyrix-Li-ct will parallel connect a lead acid starter battery and a LiFePO4 battery: - if the Charge Disconnect output of the VE.Bus BMS is high, and - if it senses 13,4V (resp. 26,8V) or more on one of its power terminals. The Cyrix will disengage immediately: - when its control output becomes free floating, signalling cell over voltage or cell over temperature, and/or - when battery voltage drops below 13,2V."; maker's diagram https://www.victronenergy.com/upload/documents/Datasheet-Cyrix-Li-ion-120-A-EN.pdf. Checked 2026-09-16. ## Base vehicles - Citroen Relay (Jumper) (Relay / Jumper third generation (2006 on; handbook edition ed01-21 read)): alternator statement absent. No published statement on the alternator’s charging behaviour found (checked 16 September 2026). Document checked: Citroen Relay / Jumper HANDBOOK (eGuide ed01-21, en-GB, document 9999_9999_369) . Checked 2026-09-16. - Fiat Ducato X290 (2014 on, including Series 8 and 9) (Ducato X290 (2014 on)): alternator statement absent. No published statement on the alternator’s charging behaviour found (checked 16 September 2026). Document checked: FIAT DUCATO OWNER HANDBOOK (MY19, print 603.85.089, EN, 12.2019) . Checked 2026-09-16. - Ford Transit (2014 on) (Transit fourth generation, Ford code TTS (2014 on)): alternator statement published: regenerative charging (48 volt mild hybrid system); Ford's fuse table also names a 'Smart regenerative charge inhibit relay': "The system uses regenerative charging during engine braking. It switches the engine off when your vehicle is coasting at a speed less than the engine stop speed that you have set." (applies to: HYBRID ELECTRIC VEHICLE (MHEV) section - 'Your vehicle has a 48 volt mild hybrid system.' - of the owner's manual for Transit (TTS) Vehicles Built From: 17-01-2022) Document checked: FORD TRANSIT Owner's Manual (CG3796en, Transit (TTS) Vehicles Built From: 17-01-2022) . Checked 2026-09-16. - Ford Transit Custom (2013-2023) (Transit Custom first generation, Ford code TTF (2013-2023)): alternator statement published: regenerative charging (48 volt mild hybrid system): "Your vehicle has a 48 volt mild hybrid system. The system is designed to help reduce fuel consumption and CO2 emissions by using regenerative charging and stopping the engine when your vehicle is coasting at a speed of 12 km/h (7 mph)." (applies to: HYBRID VEHICLE OPERATION - MILD HYBRID ELECTRIC VEHICLE (MHEV) section of the owner's manual for Transit Custom (TTF) Kocaeli, Vehicles Built From: 27-01-2020) Document checked: FORD TRANSIT CUSTOM Owner's Manual (CG3763en, Transit Custom (TTF) Kocaeli, Vehicles Built From: 27-01-2020) . Checked 2026-09-16. - Ford Transit Custom (2023 on) (Tourneo Custom/Transit Custom second generation, Ford code TTU (Vehicles Built From: 12-06-2023)): alternator statement absent. No published statement on the alternator’s charging behaviour found (checked 16 September 2026). Document checked: FORD TOURNEO CUSTOM / TRANSIT CUSTOM Owner's manual (CG3964en, Tourneo Custom/Transit Custom (TTU) Vehicles Built From: 12-06-2023 Vehicles Built Up To: 22-10-2023) . Checked 2026-09-16. - Mercedes-Benz Sprinter (W907/V907, 2018 on) (Sprinter 907 (2018 on)): alternator statement absent. No published statement on the alternator’s charging behaviour found (checked 16 September 2026). Document checked: The Mercedes-Benz Sprinter. Model information & price list. Prices effective from August 2018 production. . Checked 2026-09-16. - Mercedes-Benz Vito (W447, 2014 on) (Vito 447 (2014 on)): alternator statement could_not_be_read. Document checked: Manufacturer page attempted . Checked 2026-09-16. - Nissan NV200 (NV200 (M20, 2009 on; UK van brochure read)): alternator statement absent. No published statement on the alternator’s charging behaviour found (checked 16 September 2026). Document checked: NISSAN NV200 (UK van brochure: Introduction | Performance indicators | ... | Technical specifications | Price list) . Checked 2026-09-16. - Peugeot Boxer (Boxer third generation (2006 on, facelifts 2014 and 2024)): alternator statement could_not_be_read. Document checked: Manufacturer page attempted . Checked 2026-09-16. - Renault Trafic III (X82) (Trafic III, X82 (2014 on)): alternator statement absent. No published statement on the alternator’s charging behaviour found (checked 16 September 2026). Document checked: Stop and Start function - Renault Trafic - user manual (user-manual.renault.com) . Checked 2026-09-16. - Toyota Proace (Proace second generation (2016 on)): alternator statement absent. No published statement on the alternator’s charging behaviour found (checked 16 September 2026). Document checked: Toyota Proace Medium Van | Electric & Diesel | Toyota UK . Checked 2026-09-16. - Vauxhall Vivaro (2019 on) (Vivaro C / New Vivaro (2019 on)): alternator statement could_not_be_read. Document checked: Manufacturer page attempted . Checked 2026-09-16. - Volkswagen Crafter (2017 on) (Crafter SY/SZ (2017 on)): alternator statement published: regenerative braking: "All our Euro 6 TDI and BiTDI engines include efficiency technologies consisting of Start/Stop, low rolling resistance tyres and regenerative braking as standard." (applies to: All our Euro 6 TDI and BiTDI engines (Volkswagen Commercial Vehicles UK TDI technology page; the page names no individual van model)) Document checked: Volkswagen Van Turbocharged Direct Injection (TDI) | VW Vans . Checked 2026-09-16. - Volkswagen Transporter T5 (T5 (2003-2015)): alternator statement absent. No published statement on the alternator’s charging behaviour found (checked 16 September 2026). Document checked: Volkswagen Van Turbocharged Direct Injection (TDI) | VW Vans . Checked 2026-09-16. - Volkswagen Transporter T6.1 (T6.1 (2019 on)): alternator statement published: regenerative braking: "All our Euro 6 TDI and BiTDI engines include efficiency technologies consisting of Start/Stop, low rolling resistance tyres and regenerative braking as standard." (applies to: All our Euro 6 TDI and BiTDI engines (Volkswagen Commercial Vehicles UK TDI technology page; the page names no individual van model)) Document checked: Volkswagen Van Turbocharged Direct Injection (TDI) | VW Vans . Checked 2026-09-16. - Volkswagen Transporter T6 (T6 (2015-2019)): alternator statement published: regenerative braking: "All our Euro 6 TDI and BiTDI engines include efficiency technologies consisting of Start/Stop, low rolling resistance tyres and regenerative braking as standard." (applies to: All our Euro 6 TDI and BiTDI engines (Volkswagen Commercial Vehicles UK TDI technology page; the page names no individual van model or model year)) Document checked: Volkswagen Van Turbocharged Direct Injection (TDI) | VW Vans . Checked 2026-09-16.