November 05, 2024 22:07 (IST)
First battery-free cellphone makes calls by harvesting ambient power
Washington, July 12 (IBNS): University of Washington researchers have invented a cellphone that requires no batteries — a major leap forward in moving beyond chargers, cords and dying phones. Instead, the phone harvests the few microwatts of power it requires from either ambient radio signals or light.
Latest Headlines
First battery-free cellphone makes calls by harvesting ambient power Wed, Jul 12 2017