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 ...

Add Yahoo as a preferred source to see more of our stories on Google. The Joyeky rechargeable hand crank lantern. Amazon If you’ve ever sat through a power outage watching your phone battery tick down ...

If you are looking for a 3D printing project to keep you busy over the next couple of weekends, you might be interested in this awesome 3D printed hand crank generator that is capable of producing 30W ...

Between battery packs, solar chargers and even wood stoves that produce electricity, there are plenty of ways to power devices when in the wild. But there’s something reassuring about the ...

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 ...

A more than 120% increase in blackouts annually in the US in recent decades has left more and more Americans looking for a backup power supply when the grid goes down. The patented technology inside ...

Everyone loves to play with electricity and plasma, and [Hyperspace Pirate] is no exception. Inspired by a couple of 40×20 N52 neodymium magnets he had kicking around, he decided to put together a ...

The Genecon motor/generator is a motor or hand cranked DC generator that is used to drive another Genecon motor/generator and/or to light a series of LEDs. The Genecon motor/generators are fragile.

Hand-crank generators are, well, handy. It's always a good idea to keep a backup battery on hand when you're traveling, in case you need to make an emergency call—but if you're in a place without a ...

Although many multitools pack a ton of features, some of those features often take the form of tiny, near-useless tools. The VAK6 keeps things simple and functional with a knife, flashlight and pulse ...