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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

A blackout or a camping trip won’t leave you in the dark — this compact gadget charges your phone and powers a light anywhere ...

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 ...