Voltage 12.8V Cell type LiFePO4 Capacity 50Ah Discharge temperature -20°C -60°C Total energy 640Wh Max. continuous discharge current 50A Charging temperature 0°C -55°C Storage temperature -20°C -60°C Max discharge current 70A(1s) Terminal type M6 Standard charging current 25A Recommended charging voltage 14.4V-14.6V BMS low voltage protection 8V Net weight 5.4KG Series/Parallel 4S8P External dimensions 223*135*182mm [10 year lifespan] [Light and Clean Energy] [High Security with BMS] [Wide range of uses] [Warranty].