Engine Start LiFePo4 BatteryNominal Voltage: 12.8VNominal Capacity: 30AhCase Material: ABSWeight(kg): ~5KGInternal Impedance: <20mΩMax. Charging Current: 1 CCharging Voltage: 15.2+-0.2VCharging Method: CC-CVMax Discharge Current: 150A Max Discharge Current(Peak): 300ADischarge Cut-off Voltage: 8.8 VStorage Humidity: 45~85% Non-CondensingDimension(mm): 185*165*190mm W*L*H