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Lego USB Charger

Illustration for article titled Lego USB Charger

Add this to the list of cool things you can do with your Legos. The hand crank Lego charger lets you juice up any USB-based gadget the old fashioned way, by cranking it up. It seems fairly simple to build as it uses a Lego motor to generate current which then passes through a voltage regulator and onto the USB port. Hit the jump for a video of the charger in action.

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Hand Crank Lego USB Charger [Instructables via New Launches]

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DISCUSSION

I think this is cool! Granted, I wonder how long it would take to crank-charge my phone.

Someone, mod this so that it attaches to a hamster wheel, or something?