scosche revolt ibat2 backup charger battery for iphone
capable of fully recharging a completely dead ipod or iphone battery . rechargeable lithium ion battery includes usb charging cable . provides up to 30 hours of additional music playback and 6 hours of additional video playback . dimensions 2.4 l x 0.5 h x 1.7 w. battery type lithium-ion . output 5v - 500ma . additional up to 30h music 6h video .