with pedal Motor:48V 1500w brushless, 600W and 350W both is ok, Battery:12V, 12AH x 4pcs Lead-acid Charger: 220 / 110V, 50 - 60Hz N.W: 64 KG G.W: 71 KG Packing size:1590 x440x950mm Products size:1820x650x1040mm Climbing ability:25degree Speed:50 km/H 45km/h or 35 km/h Range:>=70km Brake:drum brake Charger life: >250 times Charging time: 5-7 hours Rated loading: <100kg Max. load: 200kg Over-current protection: 15+/-1A Power consumption per 100km:1.2kwh Container load: 32pcs/20GP; 86pcs/40HQ