FAMILY 02 · 12V / 24V LEAD-ACID REPLACEMENT · 8 MODELS
12V 100Ah LiFePO4 Battery, 1.28 kWh, 10.3 kg
A drop-in for a 12V 100Ah AGM at one third of the weight. Eight models across 12V and 24V, in LFP or NCM, 100Ah and 200Ah. Same footprint as the lead-acid case it replaces, with the BMS and the terminals where the old battery had them.
1.28 kWh
12V 100Ah, 1.02 kWh usable at 80% DoD
10.3 kg
Against about 30 kg for a 100Ah AGM
100 A
Discharge at 1C. Charge is half that
6,000
Cycles on LFP, 3,000 on the NCM builds
WHO THIS IS FOR
Take the old battery out, put this one in the same box
This family exists for one job: replace a lead-acid battery without rebuilding the installation. Same terminal layout, same case footprint, a third of the weight, and a cycle count in a different order: 6,000 here against the few hundred a lead-acid bank manages at this depth. A 12V 100Ah AGM weighs about 30 kg and this one is 10.3 kg, which is the difference between one person lifting it into a locker and two people swearing at it.
It suits campervans, boats, golf carts and trolling motors, off-grid cabins, gate and fence power, and distributors selling into the 12V replacement market. The 24V models serve small pumps, access control and 24V inverter systems.
It does not suit engine starting. Cranking a diesel needs several hundred amps for a second or two, and none of these models are rated for it. It also does not suit a wet location: the rating is IP50, which is dust protection with no water protection at all.
330 × 172 × 216 mm, 10.3 kg. Terminals on top, BMS inside, no separate box.
EIGHT MODELS
Two chemistries, two voltages, two capacities
Every model follows the same current rule: charge at 0.5C, discharge at 1C. That single rule explains the whole table, and it is the number that decides whether the battery suits your load.
| Model | Chemistry | Config | Voltage | Energy | Weight | Max charge | Max discharge | Warranty |
|---|---|---|---|---|---|---|---|---|
| LFP · LITHIUM IRON PHOSPHATE · 6,000 CYCLES · 2 YEAR WARRANTY | ||||||||
| 12V 100Ah | LFP | 4S1P | 12.8V | 1.28 kWh | 10.3 kg | 50 A | 100 A | 2 years |
| 12V 200Ah | LFP | 4S2P | 12.8V | 2.56 kWh | 20.1 kg | 100 A | 200 A | 2 years |
| 24V 100Ah | LFP | 8S1P | 25.6V | 2.56 kWh | 20.6 kg | 50 A | 100 A | 2 years |
| 24V 200Ah | LFP | 8S2P | 25.6V | 5.12 kWh | 38.0 kg | 100 A | 200 A | 2 years |
| NCM · LITHIUM TERNARY · 3,000 CYCLES · 1 YEAR WARRANTY | ||||||||
| 12V 100Ah | NCM | 3S1P | 12.6V | 1.26 kWh | 9.5 kg | 50 A | 100 A | 1 year |
| 12V 200Ah | NCM | 3S2P | 12.6V | 2.52 kWh | 18.5 kg | 100 A | 200 A | 1 year |
| 24V 100Ah | NCM | 7S1P | 25.2V | 2.52 kWh | 19.5 kg | 50 A | 100 A | 1 year |
| 24V 200Ah | NCM | 7S2P | 25.2V | 5.04 kWh | 35.0 kg | 100 A | 200 A | 1 year |
Working voltage: 10–14.6V on the 12V LFP, 20–29.2V on 24V LFP, 9–12.6V and 18–25.2V on the NCM. Suggested depth of discharge 80% on all eight. IP50. Operating temperature 0–45 °C on LFP, −10–45 °C on NCM. Bluetooth and an LCD are optional on every model.
Same footprint, same two terminals, 30 kg on the left and 10.3 kg on the right.
What actually changes when you swap
Unchanged: the case size, the terminal position, the 12V nominal, and the charger you already own, as long as it has a lithium or AGM setting.
Changed: 19.7 kg less weight in the same hole, and a cycle count that outlasts the installation. A lead-acid bank at 80% depth manages a few hundred cycles; this is rated 6,000. A BMS that will disconnect rather than let you over-discharge it, which some owners find alarming the first time.
Must change: the charger profile. Equalisation off, temperature compensation off, absorption at 14.4 to 14.6V. A flooded setting will make a good battery look faulty.
LFP OR NCM
The chemistry decides more than the price
Eight models, and four of them are NCM. Most suppliers dropped NCM years ago, so buyers will ask why we still offer it. Here is the honest comparison, including where NCM is the wrong choice.
| Item | LFP | NCM | What it decides |
|---|---|---|---|
| Cycle life | 6,000 cycles | 3,000 cycles | At one cycle a day that is 16 years against 8. On a boat used at weekends, both outlast the hull |
| Warranty | 2 years | 1 year | Printed in our catalogue, not negotiated per order |
| Voltage | 12.8V nominal, 4S | 12.6V nominal, 3S | One cell fewer, so a lower top-of-charge. This matters for charger compatibility, see below |
| Operating temp | 0 to 45 °C | −10 to 45 °C | The NCM charges ten degrees colder, which is the one place it clearly wins |
| Weight, 12V 100Ah | 10.3 kg | 9.5 kg | 0.8 kg, about the difference a full water bottle makes. Not a reason on its own |
| Thermal stability | Higher | Lower | LFP is the chemistry you fit inside a living space. NCM belongs in a ventilated compartment |
| Cost | Higher | Lower | The only real reason NCM still sells. If the budget is the constraint, take it and accept the shorter life |
CURRENT LIMITS
Half a kilowatt of charging, and why that surprises people
A 12V 100Ah accepts 50A of charge. At 12.8V that is 640 W. Put a 1,000 W solar array on it and the BMS will clip 360 W of it away, all afternoon, every sunny day. This is the most common sizing mistake on a 12V lithium replacement.
| Model | Charge power | Discharge power | What it means in practice |
|---|---|---|---|
| 12V 100Ah | 640 W at 50 A | 1.28 kW at 100 A | One 400 W panel is fine. A 1 kW array needs a second battery, not a bigger charger |
| 12V 200Ah | 1.28 kW at 100 A | 2.56 kW at 200 A | The smallest model that takes a normal campervan array without clipping |
| 24V 100Ah | 1.28 kW at 50 A | 2.56 kW at 100 A | Same cells, double the voltage, so the same amps move twice the power. This is why 24V exists |
| 24V 200Ah | 2.56 kW at 100 A | 5.12 kW at 200 A | Runs a 3 kW inverter comfortably. Above that, move to the 51.2V pack family |
Will my existing lead-acid charger work?
Mostly, if it has a lithium or AGM setting. What you cannot do is leave it on the old flooded profile.
| Charger setting | Against LFP 12V | Why |
|---|---|---|
| Absorption 14.4–14.6V | Works | Sits inside the 10–14.6V window. This is the setting to aim for |
| Absorption 14.8V or higher | Trips the BMS | The pack disconnects on cell overvoltage and the charger sees an open circuit. Repeated, it is a warranty argument |
| Equalisation cycle | Must be off | Lead-acid equalisation pushes 15V+ deliberately. On lithium it is an overvoltage event, not a maintenance step |
| Float 13.5V | Works | Harmless. Some chargers hold 13.8V, which is also fine, just slightly warmer |
| Temperature compensation | Must be off | Lead-acid chargers raise voltage when cold. A lithium BMS does not want that |
SERIES AND PARALLEL
Four in series for 48V: ask us before you build it
This is the most common question on a 12V lithium battery, and the catalogue does not answer it. We are not going to invent a limit.
| Connection | Catalogue states | Our position |
|---|---|---|
| Parallel, same model | Not stated | Normal practice and we support it. Keep cable lengths equal and do not mix ages |
| Series, 2 in a 24V string | Not stated | Send us the requirement. Some BMS boards are series-rated and some are not |
| Series, 4 in a 48V string | Not stated | Do not build it until we confirm in writing. A BMS that is not series-rated fails at the first full charge, and it fails on the most expensive battery in the string |
CERTIFICATION
What the paperwork covers
UN 38.3
Transport test summary. Small format lithium ships as Class 9, and the forwarder wants this plus the state of charge declaration for every carton.
CE & RoHS
Issued per model. The LFP and NCM builds are different products with different cells, so a report for one does not cover the other.
IEC 62619
What industrial buyers in the Gulf and the EU ask for on a bare battery. Tell us the destination and we confirm what we actually hold for the exact model, rather than assuming it transfers.
TYPICAL CONFIGURATIONS
Three builds we ship most often
Examples, not guarantees. Figures use the 80% depth of discharge the catalogue recommends, not the full nameplate.
Two 12V 100Ah packs in a van battery box, 20.6 kg in total where the old AGM pair weighed 60 kg.
CAMPERVAN
2 × 12V 100Ah · 2.56 kWh
Parallel pair, 2.05 kWh usable. A 12V compressor fridge at 45 W average, lights and a laptop charger add up to about 125 W, which is 16 hours. Two 200 W panels keep up with a normal day.
20.6 kg · 400 A discharge available
TROLLING MOTOR
1 × 12V 100Ah · 1.28 kWh
A 55 lb motor draws about 40 A at full throttle, which is 512 W. Roughly two hours at full power, or a full day trolling at half. It also saves 20 kg in the bow, which changes how the boat sits.
10.3 kg · 1.28 kW peak discharge
CABIN, 24V
2 × 24V 200Ah · 10.24 kWh
Parallel pair on a 3 kW 24V inverter. A 300 W base load runs about 27 hours, so a two-day cloudy stretch is survivable. The pair accepts 5.1 kW of charging, enough for 4 kW of panels without clipping.
76 kg · 10.2 kW discharge available
BUYING INFORMATION
What the order actually looks like
| Minimum order | 100 units per model. This is a volume line and a mixed pallet across the eight models is normal. |
| Lead time | 15 to 20 days after the deposit clears, counted from payment. |
| Packaging | One battery per carton with foam blocks, cartons stack four high on a pallet. Note the carton is heavy relative to the battery: 5 kg of packaging on the 10.3 kg model. |
| Gross weight | Printed per model. The 12V 100Ah is 15.3 kg gross against 10.3 kg net, so the carton adds about half the battery weight again. Plan freight on the gross figure, not the net. |
| HS code | 8507.60, lithium-ion accumulators. Confirm with your broker before the first shipment. |
| Trade terms | FOB Ningbo or CIF to your port. EXW is available if you have your own forwarder. |
INSTALLATION NOTES
Six things the installer needs to know
- IP50 has no water rating. The first digit means dust protected, the second is zero. It is not splash resistant, so not in a bilge, not on an open trailer, not where a hose reaches. A battery box with a lid is the minimum.
- Terminal torque, not force. These are M8 studs on a thin case lid. Over-tightening cracks the lid and lets water in, which is how a working battery becomes a warranty claim. Use the figure in the datasheet, not a wrist.
- No charging below 0 °C on LFP. The NCM models go to −10 °C. If the battery lives in an unheated space through winter, buy NCM or fit a heated box.
- Fuse at the battery, not at the load. A 100Ah pack will deliver 100A into a short circuit for long enough to start a fire. Fit the fuse within 150 mm of the positive terminal.
- Do not top-balance by charging to 14.6V for hours. The BMS handles balancing. Holding absorption high to “condition” the pack is a lead-acid habit and it shortens life.
- Replace the whole bank, not one battery. A new 12V unit next to a two-year-old one takes more than its share of the current. On a parallel bank, replace all of them or none.
M8 terminals, a removable BMS cover, and the optional LCD or Bluetooth module in the recess between them.
QUESTIONS
Six things buyers ask about this family
Can I use it to start an engine?
No. Cranking draws several hundred amps for a second or two, far above the 100A continuous rating, and the BMS will shut down rather than deliver it. These are deep-cycle batteries for loads, not starting batteries. If you need a dual-purpose setup, keep a lead-acid start battery and use this as the house bank, with a DC-DC charger between them.
My charger has an AGM setting. Can I just use that?
Usually yes, if absorption is 14.4 to 14.6V. Check three things before connecting: absorption voltage, equalisation off, temperature compensation off. A flooded setting at 14.8V or an equalisation cycle at 15V+ will trip the BMS on cell overvoltage, and a customer who sees the battery disconnect will assume the battery is faulty.
Can I put four in series for a 48V system?
The catalogue does not state a series limit, so we will not claim one. Ask us in writing for the model you want, because a BMS that is not series-rated fails at the first full charge. In most cases the better answer is the 51.2V pack: one box, one BMS, 65 kg, and no balancing problem between units.
How much solar can I connect to a 12V 100Ah?
640 W, because the charge limit is 50A at 12.8V. A 400 W array is comfortable. A 1 kW array will be clipped most of the afternoon and you will conclude the panels are faulty when they are not. If the array is already bought, use the 12V 200Ah, which accepts 1.28 kW.
Why does the NCM model have a lower voltage than the LFP?
Three cells in series instead of four. Nominal is 12.6V against 12.8V, and the working range printed is 9 to 12.6V. Two consequences: it charges ten degrees colder, and the top of its range is lower, so check your charger’s absorption setting against 12.6V before you assume a lead-acid profile will do.
What is the warranty, and what voids it?
Two years on the LFP builds and one year on the NCM, printed in our catalogue. Voided by charging below the rated temperature, by series connection we have not approved in writing, by water ingress through an over-torqued or cracked lid, and by opening the BMS cover. Normal capacity loss is not a warranty event on either chemistry.
QUICK QUOTE
Send the load, the charger and the space you have
Tell us the voltage, the amp-hour you need, the charge source and its absorption voltage, and the lowest temperature the battery will see. We come back with the model, the wiring and a price, usually within 12 hours on a working day.
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