Solutions to the battery issue involve carrying a charging cable and having access to either an electric outlet or a car charger. Of course, sometimes these options are feasible or possible. On the market, there are external battery packs, but none of these devices have not been certified by Apple, so there is always a chance, you may damage your iPhone using one of these products. That is, until now. Mophie has released the Juice Pack for the iPhone 3G which is the first Apple certified external battery solution.



Link: TestFreaks