Equipment power supply: AC 220V MaX. power 3000W Charging voltage: 0~110V Charging current: 0~20A Discharge voltage: 0~110V Discharge current: 100A Maximum current of over current test: 100A AC internal resisatance (ACR): 1~3000mΩ DC internal resistance (DCR): 1~3000mΩ Short circuit protection time: 1~20000uS