By Ian Chiu
The iPhone 3G may be as powerful as a netbook or a Sega Dreamcast, but that doesn’t help improve the device’s battery life. For those who are displeased with this fact, there are already plenty of battery extenders which may alleviate the problem as long as you remember to bring them with you. It does seem somewhat inconvenient to carry an extra accessory around, so Mophie has made Juice Pack Air – an add-on battery pack that doubles duty as an iPhone case.
Encased in the Juice Pack Air is a 1,200mAh Li-polymer battery that is rechargeable through its micro-USB jack – the de facto interface for cellphone charging. The Juice Pack Air does add bulk to the phone, but the tradeoff is worth the additional 5.4 hours of Wi-Fi, 4.5 hours 3G data transfer and an equal amount of talk time. Everything USB recently reviewed the battery extender case hybrid, and found it to be a lifesaver for serious iPhone 3G and 3GS users alike. It can take a 20% remaining iPhone 3G back up to nearly 100% in one short hour. The reviewer was impressed by the build quality as well as the glossy finish which is only about as scratch resistant as the curved back of iPhone 3G. He did however point out the Juice Pack Air’s inability to power the iPhone without recharging it. This means your iPhone 3G couldn’t draw on the Juice Pack Air’s external power directly to save some of its internal battery charging cycles.
[ Mophie Juice Pack Air Battery Extender for iPhone Review @ Everything USB ]