... ,3GS & iPod Touch 1900mAh Emergency Power Pack for iPhone 4, iPhone 3G,3GS & iPod Touch 1900mAh Emergency Power PackDescription: The ... . It's has a high capacity battery and charges your iPhone/iTouch quickly. - 1900mAh built-in lithium ion rechargeable battery ... power for iPhone 4, iPhone 3G, iPhone 3GS, iPod Touch & More - Extends stand-by and usage time - Recharged by iPhone/iPod charger - Fully ...