November 23, 2024 20:29 (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.
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First battery-free cellphone makes calls by harvesting ambient power Wed, Jul 12 2017