9000mAh Capacity Portable Back-up Rechargeable Power Supply for iPad 2, iPad, Tablet PC, Cell Phone, iPod, iPhone 4, Digital Camera, Digital Camcorder, PSP, iPod Nano, iPod Touch, MP3, MP4 And More Portable Mobile Devices Function: Portable 9000mAh Power Source. Storage Battery Capacity: 9000mAh. This portable Charger Can Also Charge for iPad, iPad2, Mobile Phone, iPod, iPhone, iPhone 4, iPhone 3GS, iPhone 3G, Digital Camera, PSP, MP3, MP4 And So on. High Capacity: With High Capacity Li-polymer Batteries. Long Life: Rechargeable Li-polymer Batteries, Up to More Than 500 Circles, Later the Power Can Still Remain 80%. Two USB Out: Can Charge Mobile Phone or iPod or MP3 / MP4 At The Same Time. High Security: Protection for Overcharge, Over discharge, Overload, and Short Circuit Protection.