Loading Capacity: Powerful electric motor, lengthend wheelbase and tread, enlarged carrier, and thickened chassis crossbeam. Electric Power System: Motor: Series DC Motor, 72V/6.3Kw, Rated ... /150Ah, 6piecesCharger: High frequency portable charger, 72V/18AElectric Vacuum booster Pump: DC12V, 1500r/min, pumping rate 32L/min, vacuum 70KPaPerformance Parameter ...