electric bike Controller:intelligent brushless Li-ion battery:24V/10Ah, 36V/10Ah electric bikeMotor Light weight high speed brushless geared hub motor, 180W-250W ... -ion battery , Options:24V/10Ah, 36V/10Ah li-ion/LiFePo4Controller intelligent brushlessCharger AC 100V-240V 2amps smart charger Charging time:4 ...