PhoneSuit Primo battery life extender

Sure, iPhone battery extenders such as the Power Duo Reserve from Griffin are quite common, and now the PhoneSuit Primo.

This 800 mAh power extender will add 45 hours worth of music playback to your iPod, and 3 hours worth of talk time to an iPhone 3GS. You can purchase one for about $35, or three for about $90.

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