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Nokia developing technology to charge cell phones with wireless radio waves

Thursday, June 11, 2009
Imagine never having to charge your cell phone ever again. It's not sci-fi, but is reality.

Nokia is developing technology that could power cell phones by way of ambient radio waves. Electromagnetic radiation from Wi-Fi transmitters, cell-phone antennas, TV towers, and other similar devices could be converted into energy to power mobile devices wirelessly.

Prototypes currently can harvest 3 to 5 milliwatts of power, and Nokia's research team is working towards a prototype that can harvest 50 milliwatts that would be enough to recharge a phone.

Principal Member of Research Staff at Nokia Markku Rouvala says that this technology will probably be ready to be put in a handset in 3 or 4 years. He says that ultimately, Nokia plans on using the technology in conjunction with other energy saving features such as solar cells placed around the outside body of a handset.

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