The heyday of the hand crank ended in the 1930s, but there were still new cars with hand cranks six decades later. For their ...

If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission. In case of an emergency, a portable weather radio can be ...

A backup battery for your phone can be essential in emergencies. But even the best ones can die or lose their charge. EtonC has released a series of backup batteries that come with their own fallback ...

Pity the lowly lead-acid battery. A century of use as the go-to method for storing enough electrons to spin the starter motor of a car engine has endeared it to few. Will newer technology supplant ...

Discover how to transform everyday objects into useful energy devices in this exciting DIY science project. Learn ...

/:16 Would you want to use a hand-crank to charge your phone every single day? Definitely not. But hardware hacker Ben Heck's clever hand-crank mobile charger could certainly come in handy in those ...

Here is the circuit of a compact hand powered generator that can awake little electronics by hand crank. This is a great vacation device that you can rely on to operate your small electronics. The ...