Low Battery?? Wirelessly Share Power

sharing battery charging

           An invention called PowerShake allows mobile and wearable devices to wirelessly charge other mobile and wearable devices.
        Wireless charging involves at least two coils — one in the power transmitter, and one in the power receiver. When an electric current passes through the power transmitter coil, it creates an electromagnetic field that can transfer charge to another coil. Power transmission is best at close distances, the scientists said.
       The scientists detailed their findings May 11 at the annual CHI conference on human-computer interactions in San Jose, California.