Wireless charging vs. wired charging vs. ‘Fast Charging’: How do they compare in efficiency?

When it comes to charging our phones, most of the talk is about speed and convenience. That’s why everyone wants one of the best wireless chargers for their phone. But there’s another part of the equation, and while it doesn’t get much attention, it’s still important: efficiency.

Efficiency is important because it determines how much power is wasted and how hot our batteries get. We’re all familiar with the latter, especially since we’ve seen what happens when batteries get too hot, but nobody seems concerned with the former. That’s because of scale – even the most inefficient phone charging method wastes a lot less electricity than keeping your microwave oven or television or cable box plugged in all the time. But I think it’s still a subject worth exploring.

Charging your phone does waste electricity, but it is getting more efficient every year.

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