How Qi wireless charging works, and why it hasn’t taken over yet

Enlarge / The Qi-compatible Nexus 5 on the Nexus Wireless Charger. New chargers will be able to increase the space between the device and the pad. (credit: Andrew Cunningham)

The Qi wireless charging standard from the Wireless Power Consortium (WPC) is having a relatively good year. Now is a good time for a bird’s-eye view of the technology—how it works, what it’s for, and what its prospects are. This is also a good time because millions of Apple ecosystem users are about to get their first sampling of Qi when the iPhone 8 and iPhone 8 Plus launch this Friday.

Qi has appeared in phones of various stripes for more than five years, and many people are already using it. The basic tech has been used for consumer products like razors and toothbrushes for a while, plus a variety of non-consumer tools.

Even if you haven’t used Qi, you may have seen Qi wireless charge pads at airports. In 2014, Verizon installed Qi wireless charging stations in several US terminals, from JFK to LAX. You’ll find them in plenty of other places, too, including devices like the Samsung Galaxy S8 and the US version of the LG G6.

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Ars Technica

Post Author: martin

Martin is an enthusiastic programmer, a webdeveloper and a young entrepreneur. He is intereted into computers for a long time. In the age of 10 he has programmed his first website and since then he has been working on web technologies until now. He is the Founder and Editor-in-Chief of BriefNews.eu and PCHealthBoost.info Online Magazines. His colleagues appreciate him as a passionate workhorse, a fan of new technologies, an eternal optimist and a dreamer, but especially the soul of the team for whom he can do anything in the world.

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