The iPhone 13 mini runs out of battery quickly after upgrading to iOS 18.2.
It is not possible to roll back to iOS 17.6.1. I tried to roll back to 18.1.1 (it discharged more slowly on it), but when setting up, a message about the 18.2 update appears and it cannot be abandoned. Can you tell me how to save the battery? Or how to bypass 18.2 when setting up?
The maximum battery capacity is 99%.