Item: 15S63Ah-PC01-A BMS: with Smart BMS Nominal Voltage: 48V Nominal Capacity: 63Ah Charge Current: 40A Discharge Current: 40A Internal Resistance: 30m Life Cycle: 2000 cycles Communication: RS485&RS232 Weight: 28Kg±2Kg Dimension: L400mm*W300mm*H240mm