Third Rail Case Adds Removable Battery to iPhone

The Third Rail case is much less dangerous than it sounds. Instead of being a huge metal beam that carries a gazillion volts with the dual purpose of powering underground trains and terrifying children, the Third Rail is an accessory battery pack for your iPhone.
It’s not just another chunky juice-pack style case, either. While the [...]

Source: http://www.wired.com/gadgetlab/2011/05/third-rail-case-adds-removable-battery-to-iphone/

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