Hello friends, my name is Arjun Gupta and today we see "A CELL PHONE WITHOUT BATTERY". Introduction- UW engineers have designed the first battery free cellphone that can send and receive calls using a few microwatts of power. Phone company or manufacturers are continuously trying to create a new technology that can run long on a single battery charge but the team of engineering at the University of Washington (UW) has gone the extra step: They create a cell phone that does not need a battery to run cell phone basic function like calling obviously. The phone created by the engineers of UW does not look like original cell phone. It is a simple printed circuit board with the basic functionality of calling, including a microphone, number pad and headphone jack. But this typical circuit phone did not give you the feel of a real phone, but you do not have to worry about battery dead problem. Working of Battery-less cell phone- This is still uses the elec...