Check Out World's First Battery Free Mobile Phone

Technology has achieved another milestone in Mobile technology. Researchers at the University of Washington have developed the world’s first battery-free mobile phone. 

This mobile phone power themselves by extracting energy from ambient radio signals and light.

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Test experiment successful when Researchers were able to receive incoming calls and dial out with the battery-free phone on Skype. In the test environment, prototype of mobile consumed almost zero power.

The Basic Function perform by prototype :

1. Transmitting speech and data and receiving user input via buttons. 

2. Using Skype, researchers were able to receive incoming calls, dial out and place callers on hold with the battery-free phone.

However, the battery-free phone require a small amount of energy, which is approximately 3.5 micro watts. In order to harvest this energy the phone gathers power from ambient radio signals transmitted by a base station up to 31-feet away. This enables the device to communicate with a base station 50-feet away.

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Further, researcher are planning to improve the phone’s operating range and encrypting conversations to make them secure. The team is also working to stream video over a battery-free cellphone and add a visual display feature to the phone using low-power E-ink screens.