Wireless charging is based on induction, a field that’s seeing rapid innovation. Now, as the universal wireless charging standard makes its first generational update, Qi2 will bring Apple, Samsung and other smartphones to the same universal charging standard. This will create more efficiency and help pave the way for a range of innovations for devices and accessories beyond cell phones.

WSJ explores the tech behind wireless charging and looks at where it is heading in the future.

Chapters:
0:00 Wireless charging
0:41 How the tech works
3:01 How the tech originated
4:16 Where the tech is going

‘The Tech Behind’ explores the amazing engineering, computing, science and algorithms that power our favorite tech.

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