iPhone Case Lets You Charge Your Device by Hand

A new Kickstarter campaign wants to put the power of charge in the palm of your hand

The Mipwr Dynamo is an iPhone case with two functions: It acts as both a protective shield and a charger for your phone — with no plugging in required.

When your phone's battery begins to drain, you can easily pop out the concealed hand crank from the side of the case and begin to power it back up. As you crank the lever, a charge is generated

The Mipwr Dynamo works through electromagnetic induction, which is the process of harnessing electricity using a magnetic field. A magnet inside the case spins as you crank the handle, creating energy that is transferred into voltage to juice up your phone's battery. Read more...