Discover how to build a DIY wind-powered phone charger using DC motors and simple materials! This step-by-step tutorial ...

There are already plenty of solar-powered phone chargers out there, but they won't do you much good at night, when it's cloudy, or even if you live too far north. Chances are, however, that in any one ...

If you need to keep your devices charged out and about, this might be the gadget for you. The Mini Kin Green Power Generator is a small wind generator with a rechargeable battery pack that you can ...

Hit your parts bin and set aside an afternoon to build a wind turbine that recharges batteries. You can see two AA batteries hanging off the side of this small generator. You only need a few parts to ...

A social enterprise with stand-alone, solar-powered mobile device chargers for public spaces. Another one making compact, quiet rooftop wind generators. Those were the two winners of a recent pitch ...

A solar charger or solar powered device is all fine and good if you live in an area where there is ample sunlight. If you live in an area with heavy tree or cloud cover most of the year, a solar ...

Powertraveller adds an ultra-versatile portable charger to its gadget charger line. Not only does the new Powermonkey Expedition include standards like a clamshell solar panel, AC adapter and crank ...