If your smartphone is always running out of juice while out and about, this great DIY handcrank charging hack can keep your device juiced up when ever you need.
Its a great weekend project that uses an easily available hand crank from a wind up torch. Watch the video after the jump to see it in action.
Benjamin Heckendorn has created a great little hack that will charge any smartphone that uses a USB charger and 5 volts. The video show it charging a HTC EVO but the crank hack should work with practically any smartphone.
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