It may not have the world’s first under-screen camera, a title the ZTE Axon 20 5G is claiming, but the Xiaomi Mi 10 Ultra still shocked the mobile world with its insane charging speeds. As if the 120W wired charging weren’t enough, the phone even boasted of 50W wireless charging, more than three times the market average, and promising to charge the Mi 10 Ultra from zero to full in just 40 minutes. Naturally, that kind of unbelievable technology will raise concerns and questions and Xiaomi was only too happy to explain some of the details to those willing to listen.

Charging systems have to take into account multiple factors in order to maintain safety while still providing the best power efficient to power up batteries as fast as possible.
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