It sounds like the poster boy (or product) for “have your cake and eat it too”: Third Rail Mobility‘s new backpack-battery system is a slim case (callled the Slim Case, just to be confusing) that allows their removable 1250 mAh Smart Battery to snap on. Smart? Heck, the battery sounds like a genius: Besides being able to power other electronic devices off its micro USB port, “stacked Smart Batteries will automatically and seamlessly transfer power to create as many fully-charged batteries as possible,” says the press release.
The whole kit runs $90, or the case and battery can be bought individually for $40 and $60, respectively. And right now, it’s only available for the iPhone 4 (Android flavors coming soon).
When he was eight, Eli Milchman came home from frolicking in the Veld one day and was given an Atari 400. Since then, his fascination with technology has made him an intrepid early adopter of whatever charming new contraption crosses his path. He calls San Francisco home, where he works as a journalist and photographer. Eli has contributed to the pages of Wired.com and BIKE Magazine, among others. Hang with him on Twitter.
