The battery life of the iPhone 3G is not enough for you? Consider Mophie Juice Pack for iPhone 3G, a external battery pack. The Juice Pack 3G is a rechargeable lithium polymer battery in the form of a non-slip, soft grip case.
The Juice Pack offers up to 350 hours of standby time, up to 6 hours of of talk time and internet use for iPhone 3G, up to 28 hours of audio playback and 8 hours of video playback time.
Mophie’s Juice Pack for iPhone 3G has a price tag of $99.95 and will be shipped on 30 October. There is also Juice Pack for iPhone 1st Gen at same price.