Battery Type:Lithium Iron Phosphate Battery Pack Nominal Voltage:51.2V Nominal Capacity:100Ah Charge Cut-Off Voltgae:58.4V Discharge Cut-Off Voltage:40.0V Standard Charge Current:0.5C Max Charge Current 1.0C Max Continuous Discharge Current 150.0A Peak Discharge Current 300.0A(3000 @80% DOD, 0.5C Dimension 483*385*222mm/Customize Weight About 51.8kg Communication RS232/485 PCM Protection of over charge/discharge, over current, short circuit etc......