... with steady quality. Pinsheng power bank compatible with iPhone 3G,iPhone 3GS,iPhone 4,iPhone 4GS,iPad,iPad 2,iPod,Samsung,HTC,Moto etc. Also it ... can charging for MP3/MP4,digital camera, Bluetooth earphone, GPS ... voltage /Current DC5V 1000mA Weight 64gBattery typeli-polymerCharge time3.5hours Car charger for iphone 4