CATL 3.2V 314Ah LiFePO4 Battery Cell

The CATL 314 is rated for 7,000 cycles to 70% state of health (70% SOH). With one cycle per day, that's over 19 years of daily cycling. The conservative 0.25C standard rate and 10%–90% recommended SOC window preserve the full cycle life in real-world service, and the cobalt-free LFP cathode is inherently stable with no thermal runaway risk.

CATL designs this cell to EV-grade standards — built for electric vehicles and exceeding typical stationary solar energy storage requirements.

CATL (Contemporary Amperex Technology) is the world's #1 lithium battery manufacturer — the brand behind EV battery packs for Tesla, BMW, Mercedes, and most major EV platforms:

• EV-grade engineering pedigree — the same manufacturing discipline and QC culture as CATL's automotive cells
• Comparable specs to the popular EVE MB31 — same 314Ah class, same ≤0.18mΩ low internal resistance, same UL/MSDS/UN38.3/CE certification set
• 7,000 cycles @70% SOH — a certified rating from the world's most demanding EV supply chain

Both are excellent cells; choosing CATL means buying from the industry's largest, most vertically integrated cell maker. See our EVE MB31 listings for the 8,000-cycle alternative.

The CATL 314 is a drop-in foundation for:

• DIY battery packs — 12V, 24V, and 48V builds (16S = ~16kWh at 51.2V)
• Home solar energy storage and server rack batteries
• Off-grid systems — discharges down to -20°C
• EV conversions and marine/RV projects

Each cell is UL, MSDS, UN38.3, and CE certified — the full safety and transport certification set for lithium cells. Its 204.4 × 71.5 × 174.1mm prismatic format (5.49kg) matches standard 314Ah rack case kits and busbar hardware, so it swaps cleanly into common DIY layouts.