Whether out camping or waiting for the power to come back on during a storm, there are plenty of occasions where you might not be able to charge your cellphone reliably. But if you can get over the ...

You know, the apocalypse doesn’t seem so bad nowadays. With my complete arsenal of disposable battery chargers and hand-crank everything it seems that in a powerless future a little elbow grease is ...

A manual mobile phone charger will allow users to make calls even if the battery has run flat. The clockwork charger consists of a small hand crank attached to a dynamo. Turning the crank generates ...

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 ...

You know those hand-crank flashlights that seemed to be all the gift-giving rage this past holiday season? Surprisingly, these hand-cranks can be modded to charge a ...