Several backup batteries can extend your daily iPhone 3G use

By Chris Foresman | Published: July 18, 2008 - 10:13AM CT As we learned in our extensive review, the 3G radio in iPhone 3G gobbles up battery life. In all fairness, it does get as good or better battery life as most comparable 3G phones, but it might not be enough for heavy users. Apple has offered some ways to extend the life of the battery, but the advice basically boils down to "turn off all the good features," like 3G, WiFi, GPS, and Bluetooth. That can make the device nearly useless for many, so if you need more battery life, several rechargeable battery packs can give you an extra boost. The most common type of battery recharges via USB and plugs in via the dock connector, so these are compatible with most any iPod. Two larger packs from APC and Kensington use the standard charging cable, so they also work with most... [read full story]