iOS 26 update causing rapid battery drain on iPhone
Why battery is draining after updating ios 26 even with 92% battery level?
[Re-Titled by Moderator]
Original Title: Battery draining
iPhone 15 Pro, iOS 26
Question marked as
Did you already force restart your iPhone after the latest upgrade?
Force restart iPhone - Apple Support
Also have a look at the general troubleshooting here:
If the battery in your iPhone or iPad drains too quickly - Apple Support