12 Series 36V BMSCharging Voltage: 43.8 VMax. Charging Current: 7.5 ADischarging Voltage26.4V ~ 43.8VContinuous Discharging Current: 40AMax. Discharging Current(Peak): 60ABuzzer Alert: NoneLED Capacity Indication: NoneLCD Capacity Indication: OptionalUSB BusNoneDimension: (mm)108*56*10 mmFit For: Under 1500W motor