How did you come up with that nonsense?
The maximum with a compatible charger is:
- 50W wireless, 100% in 28 min
- 120W wired, PD3.0, QC4, 100% in 15 min
They released the 100w wireless charger especially for the MIX 4. I spent the past 2 days looking through baidu with translator lol. So actually 100w wireless charging was possible after enabling, but the regulators set the limit (after MIUI 13/14) to 50w wireless charging in China. So With an update Xiaomi limited it to 50w. But according to some users on Baidu it could still be possible to charge with 100w. You just need to enable fast charging in the Wireless charging setting and on the screen it says 50w but it actually charges with the 100w. Soo yeah I can charge with 100w 28 minutes. 50w 28 Minutes makes no sense at all think about it. Is there any 4500 mAh phone that can charge 0-100 (wired!) in 28 minutes? No. With wireless charging you still loose probably around 20% of the Watt just because of the inefficiencys.