... , lengthend wheelbase and tread, enlarged carrier, and thickened chassis crossbeam. Electric Power System: Motor: Series DC Motor, 72V/6.3Kw, Rated ... : 72V/6.3Kw, 360A Series DC Electric Control System, air-cooling with radiatorBattery: Maintenance free lead-acid battery, 12V/150Ah, 6piecesCharger: High frequency portable ...