Package size 1680mm?80mm?180mm Wheel base 1170mm Max load 100kg Max speed ≥45km/h Range ≥40km Electric consumption per 62 miles(per100km) ≤2.5kw.h Battery Type Fully sealed free maintenance lead-acid Capacity 20Ah Standards voltage 12V? Motor Type Drum, brushless Rated output power 500W . ( 1000W is optional) Torque 11N.m Efficiency ﹥82% Controller Insufficient voltage protection value point 42±1V Over current protection value point 25±1A Charger Input \output voltage AC 220V\DC59V or AC 110V\DC 59V Charging time 8-10h