Custom Fit Hard Case with Rechargeable Spare Battery Inside
Brilliant... in the thickness of the hard case, BatteryBoost has a rechargeable battery doubling the autonomy of your iPhone 3G or iPhone 3GS. Simply slide your iPhone 3G or iPhone 3GS (charged or uncharged) in the charged BatteryBoost Shell for extended battery life. Perfect for the traveler and a great gift item too!
Features
No need to use extra cables, BatteryBoost snaps on to your device
BatteryBoosts battery is the most powerful of the market: 2400 mA
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