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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

If you have a 3D printer handy and are looking for a new project to keep you busy over the weekend and beyond you may be interested in this new 3D printable working hand crank power generator. The ...

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 it looks like a yo-yo, this portable generator from Potenco has been selected as the power source for the One Laptop Per Child (OLPC) project, and all you have to do is pull its cord for one ...