Original Oneplus One Power Bank 10000mah External Battery for Oneplus, Cellphone, Ipad Original oneplus one Power bank 10000mAh External Battery enough to provide three full charges for your OnePlus One Dual USB ports enable two electronic devices to be connected and charged simultaneously, with plenty of juice for smartphones, tablets, and more Charging time : Approx. 5.5h Safety feature: Electrostatic, short-circuit, overcharging, overheating protection