The Juice Pack external battery for the iPhone 3G from mophie. The External Juice Pack is a ultra slim external rechargeable battery made specially for the Apple iPhone 3G.
The Juice Pack features a rechargeable 1200 mAH lithium polymer battery. The Juice Pack is a ultra slim and lightweight battery pack that would look like a skin on your phone. The Juice Pack is dubbed the thinnest Apple certified “Works With iPhone” external battery in the world.
The Pack also gives users the option on when they want to use their external power using its standby mode, it has four LED indicators to let you know how much juice left in the pack. Juice Pack air provides additional 270 hours of standby time and up to 45 hours of additional talk time to the iPhone 3G. Available in 3 colors Black, Purple and White for $79.95