Four kWh that goes where you go.
The 12.8V sibling packs four kilowatt-hours into 30.5kg — light enough to move, big enough to matter. It powers 12V loads directly in RVs, boats, street lighting and base stations, and builds into larger systems through series/parallel combination.
Standard 12V LiFePO4 parameters (14.6V charge, 10.0V cutoff) work with most 12V chargers, inverters and solar controllers.
At 30.5kg versus ~85kg for comparable lead-acid Ah, and 6,000+ cycles versus 300–500 — the lifetime cost math is not close.
Runs inverters up to roughly 1kW continuous, plus motors and DC loads, with 50A standard / 80A fast charging.
Over-charge, over-discharge, over-current and short-circuit protection with a SOC display, in an 8S1P configuration.
| Nominal voltage | 12.8V |
|---|---|
| Nominal capacity | 312Ah (12312Y-01) / 314Ah (12314Y-01) |
| Minimum capacity | 275Ah / 310Ah |
| Rated energy | 3993Wh / 4019Wh |
| Shipping voltage | 12–13.6V |
| Charge voltage | 14.6V |
| Discharge cutoff | 10.0V |
| Charge method | CC/CV (constant current / constant voltage) |
| Charge current (std / fast) | 50A / 80A |
| Max discharge current | 100A |
| Standard charge time | ≈7.0h |
| Cycle life | ≥6000 cycles @70% DOD, 70% EOL, 25°C, 0.2C |
| Charge / discharge temperature | 0–50°C / -20–55°C |
| Recommended storage temperature | -10–35°C |
| Max internal resistance | 15mΩ |
| Configuration | 4S1P |
| Weight | 30.5kg / 31.7kg |
| Dimensions (L×W×H) | 340×228×252 mm (packaging 380×268×310 mm) |
| Protections | Over-charge, over-discharge, over-current, short circuit |
| Display | State-of-charge / voltage indicator |
| Storage notes | Store at 40–60% charge; recharge/discharge every 6 months in storage |
A full weekend of typical use: LED lighting, a 12V fridge, water pump, phone charging and a TV — roughly 3–4 days without sun, and indefinitely with 300–400W of solar through a suitable controller.
In most 12V systems yes — check that your charger has a lithium mode or adjustable voltage (14.6V). Our NQ/NS smart chargers have a dedicated lithium profile for exactly this.
Yes: two packs in series make 25.6V, four make 51.2V; parallel connection multiplies capacity. Use matched packs and keep series strings balanced.