Telecommunications & Media
Wireless charging uses up to 40% more power than wired, with heat and battery life also factors
Wireless smartphone charging can consume up to 40% more electricity than wired charging, using about 21Wh versus 15Wh to charge a phone from 0% to 100%, Engadget reported. Energy is lost as heat during electromagnetic power transfer and during AC-to-DC conversion. Higher temperatures can accelerate lithium-ion battery degradation. Wider adoption could lift overall power use, while safety and environmental burdens vary by product and usage conditions.
