... "~28" wheel size, pedelec system, max speed 25~45km/h, battery LiPo 36/48 QD-S001A electric bicycleThe kit we supply including ... 36V 10Ah/12Ah LiFePo4 battery6, 1pcs of battery charger7, battery capacity indicator8, battery holder Top speed: 25km/hPacking in carton: 200sets/20"GP ...