Take Zap! Tech Geeks, Starved for More Battery Power, Give Themselves a Charge.

Any geek can tell you that battery life hasn’t kept up with gadget innovations. But not to worry: Inventors are figuring out how to turn geeks into batteries.

While most gadget lovers hunt for empty wall sockets to charge their devices, Kevin Bartholomew just plugs his cellphone into his hip. That is where he keeps a nine-inch device looped around his belt that converts the kinetic energy of his motion into enough power to keep his devices running.

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About Voices

Along with original content and posts from across the Dow Jones network, this section of AllThingsD includes Must-Reads From Other Websites — pieces we’ve read, discussions we’ve followed, stuff we like. Six posts from external sites are included here each weekday, but we only run the headlines. We link to the original sites for the rest. These posts are explicitly labeled, so it’s clear that the content comes from other websites, and for clarity’s sake, all outside posts run against a pink background.

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