When was the last time your mobile phone ran out of battery? Will you feel annoyed when your mobile phone turned off automatically due to the lack of battery while waiting for an extremely important call? Anyway, here is the good news. Nokia Finland filed a US patern of phones that will automatically recharge itself by harvesting the energy from the owner's motion.


Caption: example of a charging phone

Nokia suggests that the mobile phone itself will collect energy from different sources such as the ambient radio waves/transmitter circuit emitted by antennas, Wi-Fi transmitters, and the battery - these are well supported on a sturdy frame. This frame can move along two sets of rails, allowing it to travel up and down, or to the other side to side. The stips of crystals at the end of each rail, moving the phone and the motion will generate the energy (or electricity) for that particular phone. Nokia's goal is to harvest a lot of energy power (50 milliwatts of power?) to keep the battery fully charged at all time. The Nokia research lab at Cambridge (UK) is currently working on a prototype mobile that would eliminate the traditional cell phone charger - an auto-recharged phone.