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The 24V LiFePO4 battery is the professional’s choice for mobile and marine power above ~3kW — the same energy as 12V at half the current, which means thinner cables, less voltage drop, and cooler running. LJY Energy’s 25.6V (8S) series covers 100Ah to 314Ah for RVs, yachts, trucks, and off-grid sites where 24V is the native system voltage.
Series at a Glance: the 24V Capacity Ladder
| Model | Capacity | Energy | Cell config | Typical BMS | Best for |
|---|---|---|---|---|---|
| 24V 100Ah | 100Ah | 2.56kWh | 8S1P (100Ah cells) | 100A | Truck auxiliary, small marine, 24V backup — the entry SKU |
| 24V 200Ah | 200Ah | 5.12kWh | 8S1P (200Ah cells) | 200A | Mid-size RV, yachts, off-grid cabins — the sweet spot |
| 24V 314Ah | 314Ah | 8.04kWh | 8S1P (314Ah cells) | 200–300A | Full off-grid living, large yachts — maximum single-battery energy |
For the engineering detail on the flagship, see our 25.6V 314Ah battery page. For 12V systems, see the 12V series; for home storage, see the 51.2V series.
The 24V Advantage: Current, Cable, and Heat
| Load | Current at 12V | Current at 24V | Cable implication |
|---|---|---|---|
| 3kW inverter | ~250A | ~125A | 70mm²+ vs 35mm² — half the copper |
| 5kW inverter | ~420A | ~210A | Impractical at 12V — standard at 24V |
For any system above ~3kW of inverter load or ~5kWh of storage, 24V is the practical minimum.
Capacity-by-Capacity: Who Buys What
24V 100Ah — the entry SKU
Who stocks it: truck parts distributors, marine suppliers. The natural lithium replacement for 24V lead-acid pairs in commercial vehicles.
24V 200Ah — the sweet spot
Who stocks it: RV and marine distributors in Australia, New Zealand, Europe, and North America. At 5.12kWh it covers a full day of typical RV use.
24V 314Ah — the flagship
Who stocks it: premium RV/marine distributors and OEMs. At 8.04kWh from an 8S1P pack of 314Ah prismatic cells (EVE MB31, REPT, Hithium, CATL, CALB, Gotion).
Feature Options Matrix
| Option | Choices | Notes |
|---|---|---|
| BMS current rating | 100A / 200A / 300A continuous | Size to the inverter — see our BMS selection guide |
| Bluetooth monitoring | Standard / not fitted | SOC, voltage, current, cell temperatures via app |
| Communication BMS | CAN / RS485 optional | For inverter integration |
| Low-temperature protection | Cut-off only / cut-off + self-heating | Essential for winter RV and cold-climate marine |
| Enclosure protection | Standard / IP65 / IP67 | IP67 for marine installation |
| OEM branding | Private label / neutral | Custom cases, labels, specification sheets |
Wholesale and OEM/ODM
LJY Energy supplies all three capacity points wholesale with matched BMS options, waterproof enclosures for marine, and project documentation (UN38.3, MSDS). Cell-level sourcing available — see LiFePO4 battery cells wholesale.
Specifications, pricing, MOQ, and lead times are confirmed per project. Contact us with your target models, BMS features, and volume for a series quotation.
Truck & Fleet Applications
- Sleeper-cab auxiliary power: a 24V 100Ah unit runs cab HVAC, refrigeration, and electronics overnight without idling.
- Fuel savings: eliminating 8 hours of nightly idling pays for the battery in fuel alone within 1–2 years.
- Fleet standardization: one battery model across the fleet simplifies training, spares, and warranty.
Frequently Asked Questions
Should I choose 24V or stay with 12V?
Above ~3kW of inverter load or ~5kWh of storage, 24V halves current, cable size, and voltage drop.
Can I series-connect two 12V batteries instead?
Yes, but a purpose-built 24V battery has one BMS managing all 8 cells — better balance and cleaner wiring.
What inverter and solar controller voltages do I need?
24V nominal inverters and MPPT controllers accept the 25.6V nominal / 29.2V charge profile.
Do you support private-label orders?
Yes — OEM programs cover one model or the full series — request a quotation.
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