super large capacity 20000mAh portable power bank for iphone/ipad high efficiency of power conversion long cycle life ... manual for power bank manual for power bank for iphone/ipad Specification: Cell type:polymer lithium ion batteryOutput voltage:5V ... :190x103x24mmCharing time:6-10 hoursGlass textures1. Universal Charger Suitable for Iphone ,Ipad ,Ipod ,Mp3/Mp4 ,PSP,PDA, Bluetooth, Cell phone, ...