WattCycle 12V 300Ah(314Ah) Mini LiFePO4 Lithium Battery(2 Packs), Built in 200A BMS & 4.01kWh Energy, 4000+ Deep Cycles, for RV, Marine, Camping, Solar Off-Grid

[High-Capacity Power] 314Ah and 4019Wh of energy, outperforming standard 12V 300Ah batteries and replacing three 12V 100Ah units in parallel. [Enhanced Current Output] Braided oxygen-free copper wires improve efficiency by 50%, supporting devices over 2000W for heavy-duty off-grid and mobile applications. [Advanced Safety & Durability] Built-in 200A BMS, aluminum cooling fins for 30% faster heat dissipation, and all-weather protection with low-temperature cut-off (-4°F). [Robust Construction] Internal aluminum frame prevents swelling, housed in an IP65 waterproof ABS case, and certified to meet international safety standards. [Long Lifespan & Easy Use] 15,000 deep cycles with EV-grade cells for 10+ years of service, featuring faster charging, lighter weight, and simple installation. [Space-Saving Design] Compact and lightweight at 62.5 lbs, optimized for easy integration into RVs, solar systems, and marine use.