... 4800mAh 2.Input:5V,1A 3.Output:5V,1A Backup battery for iPad ,iPad2 ,iPhone 4/3G/3GS ,Cell ... phone ,MP3,MP4Product features:Portable Charger Battery adds plenty hours of play time to your ... power Supply (included )conveniently.7:Built-in battery tester button with battery level LED indicator .8:Power On / ... :Capacity:4800mAhInput:5V 1AOutput:5V 1A Backup battery for iPad 2,iPhone 4,iPod,Blackberry