Battery Model,B-LFP36-60 Nominal Voltage,38.4V (Display voltage: 39.6V) Nominal Capacity,67Ah Usable Energy,2.573 KWh Maximum Continuous Charging Current,40A Maximum Continuous Discharging Current,80A Battery System Weight,20KG Protection Rating,IP54 Cycle Life,Over 2000 times Dimension(WxDxH),483*170*240(MM) Warranty,12 Years