How to fix battery consumption forecast in Android 9?

Question

Android

How to fix the calculation of battery life on a smartphone? After updating to ANDROID 9, a nuisance happened - greatly inflated forecasts. In ultra mode, more than 200 hours counts, in performance, more than 60 hours, but this is not the case.
I tried to calibrate, reset the settings. Nothing helped. I would not want to restore to the factory. Who faced similar?
Huawei nova 3
device

Answer 1

The problem was solved unexpectedly. To equalize the forecast, you just need to use your phone, and after the third charge-discharge cycle, the calculation becomes close to the real one.