Description Meet LiTime's Latest Invention - Your 2025 Must-have Breakthrough LiFePO4 BatteryBest lithium battery for RVs/camping/trolling motors(30~70lb)/solar/off-grid/home storageBluetooth 5.0, Auto-connection, smart control & monitor battery with LiTime AppLow-temp cut-off protection secures your battery in cold weatherLiTime's latest BMS provides 20+ protections and warningsAutomatic Overload Protection & Recovery-No User Intervention RequiredEV Grade-A LiFePO4 Cells, 4000+ cycles@100%DOD1280Wh of high energy, 1280W of large output Power 500A/1S peak discharge current to withstand larger surgesGroup 24 battery size, 10.24*6.61*8.30 in.Max 20.48kWh expandable energy (Max 4P4S)10X charging efficiency, 2X runtime time (compared with regular lead-acid batteries)DO NOT use as starter batteryUpon initial use or after manually powering off the battery, please ensure to connect the charger to turn on the battery. Recommended LiTime 14.6V 20A charger.