Epoch Batteries 12V 314Ah 4.02kWh Eco Series LiFePO4 Battery Group 31 Deep Cycle | 12314-ECO

When your RV, marine system, solar bank, or off-grid setup demands serious capacity without the maintenance burden of lead-acid, the Epoch 12314-ECO delivers 314Ah of high-capacity LiFePO4 power in a Group 31 footprint with 250A continuous output and cold-weather charge protection built right in.

• 314Ah High-Capacity LiFePO4 Storage – Packs 4.02kWh of stored energy into a single Group 31 battery, running a 100W DC load for approximately 32 hours and a 500W load for over 6 hours at 80% planning energy.
• 250A Continuous Output with 750A Peak – Delivers 250A of continuous discharge with a 750A peak for 5 seconds, giving you the current headroom needed for large inverters, heavy marine loads, and demanding off-grid systems.
• Low-Temperature Charge Protection – Built-in BMS monitors cell temperature before allowing charge current, automatically blocking charging below the safe range so your cells stay protected in cold environments.
• 4,500+ Cycle LiFePO4 Chemistry – Stable lithium iron phosphate chemistry delivers over 4,500 maintenance-free cycles, dramatically outlasting AGM and lead-acid alternatives in deep cycle applications at a fraction of the long-term cost.
• Scalable Up to 4S16P Configuration – Connect up to 4 in series for 48V systems or up to 16 in parallel for a maximum 5,024Ah / 64.32kWh bank, making this the foundation of a serious large-scale energy storage system.

The 12314-ECO is built for high-capacity 12V house power applications — large RV and motorhome banks, marine house batteries, solar storage for off-grid cabins, van builds with heavy loads, and backup power systems that need days of runtime rather than hours. At 4.02kWh nominal with 80% planning energy of approximately 3.22kWh per battery, capacity scales linearly as you add units in parallel.

The ABS/PC blend UL94-V0 enclosure with IP54 weather resistance handles everyday outdoor and marine exposure without concern, while the M8 bolt terminals provide a solid, low-resistance connection built for high-current applications. There is no Bluetooth and no self-heating on this Eco Series model — keeping the price focused on raw capacity where it matters most.

Certified to UL 1642 and UL 9540A cell standards, IEC 62619:2022, CE, and RoHS compliance, and shipped as UN 38.3 Class 9 lithium — this battery meets the requirements for residential, marine, and mobile installations and ships without restriction.

Technical Specification