The idea of taking your phone with you and just adding water if you run out of juice had been a pipe dream until now. At the end of this summer REI will carry the PowerTrekk. It has a small metallic powder and by adding water you can charge a phone or anything else with USB. And since this is so cutting edge it comes with a cutting edge price – $230. Still neat this sets the stage for them reducing the price and within a few years we’ll all have one.

There’s also a neat story to how it was developed by someone trying to make an air freshener.

You can check it out here.

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