We’ve seen a range of solar-powered battery chargers and looks like it’s time to take a look at a pedal powered one. Oscar L’Hermitte’s Watts Maker cellphone charger provides juice to your mobile phone while you are pedaling down the street. Not a single penny is spent, only sweat. Your mobile phone will be charged from 0 to 100% in about 90 minutes. The complete system consists of a small kinetic generator that produces energy as long as you keep riding your bike. I think I have got just another reason to ride a bike
Via: Inhabitat