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Xiaomi Mi 10 Ultra charging test disputes 120 W claim but it can still go from 0 to 100% charge in a hot 21 minutes

It might be better to stick to charging the Xiaomi Mi 10 Ultra at 50 W. (Image source: Xiaomi)
It might be better to stick to charging the Xiaomi Mi 10 Ultra at 50 W. (Image source: Xiaomi)
The Xiaomi Mi 10 Ultra has been put through a series of charging tests and has come up short with the promise of 120 W fast charging. The Mi 10 Ultra did manage to refill its battery from 0 to 100% in just 21 minutes, but this came at the cost of some soaring temperatures.

Android Authority has posted an article pertaining to the alleged 120 W charging capability of the Xiaomi Mi 10 Ultra. While the Chinese OEM puts a 120 W charger in the box with the flagship smartphone, it appears the reality is that users should be prepared to be satisfied with 80 W charging, which is still speedy enough. According to Android Authority’s tests, the Mi 10 Ultra managed to draw 86.4 W from the wall, and with 6.3 W lost across the components involved, the figure became 80.1 W.

Admittedly, at the start of the charging tests, the Xiaomi Mi 10 Ultra was able to soak up 92.3 W but even this initial high is way off the firm’s 120 W claim. However, for the majority of the testing, 80.1 W was the key figure, although this still allowed a complete recharge to take place over just 21 minutes. Xiaomi may have hit 120 W during testing of the Mi 10 Ultra, but in the real world, users might have to make do with two-thirds of that figure.

Although 80 W fast charging is nothing to be sneezed at, even that reduced amount comes with an inherent issue: Increased temperatures. The source measured the Mi 10 Ultra producing 43.8 °C at the peak of 80 W charging, which goes over a 40 °C warning mark before dropping to safer levels toward the end of the charging cycle. The Xiaomi Mi 10 Ultra, even with its suspect marketing of 120 W charging, is still an impressive smartphone that features a decent 4,500-mAh battery.

Charging time. (Image source: Android Authority)
Charging time. (Image source: Android Authority)
Temperature over time. (Image source: Android Authority)
Temperature over time. (Image source: Android Authority)
Temperature over charge %. (Image source: Android Authority)
Temperature over charge %. (Image source: Android Authority)
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2020 11 > Xiaomi Mi 10 Ultra charging test disputes 120 W claim but it can still go from 0 to 100% charge in a hot 21 minutes
Daniel R Deakin, 2020-11- 2 (Update: 2020-11- 2)
Daniel R Deakin
Daniel R Deakin - Managing Editor News
My interest in technology began after I was presented with an Atari 800XL home computer in the mid-1980s. I especially enjoy writing about technological advances, compelling rumors, and intriguing tech-related leaks. I have a degree in International Relations and Strategic Studies and count my family, reading, writing, and travel as the main passions of my life. I have been with Notebookcheck since 2012.