And if you really took to the idea of wearing your cell phone on an ankle based strap, then you surely should look into the invention of an Indian guy some time back. Tired of running out of battery, he designed a cell phone recharger that recharges the handset as you walk. Pankaj designed the mechanism based on the simple concept of using a dynamo which converts the mechanical energy produced by the pressure of the foot into electrical energy. About 5 to 6 volts of electricity can be produced by this method.

Simple it may seem, but the concept took 5 years to bear fruit. The government has for once acknowledged the ingenuity of the young man and awarded him first prize from the National Innovation Foundation. Pankaj claimed that an hours time on your feet was all it took to recharge most cell phones. He requested the government to enable him to work with the Indian Army to install his invention allowing soldiers to recharge their wireless radio sets without depending on any other source of electricity.