iPhone running 18.4.1 update causing overheating and excessive battery drain
Device overheating than usual and massive battery drain i have to charge 2 times in a day
[Re-Titled by Moderator]
iPhone 15 Pro Max
After an update, your iPhone must work extra hard to run additional background tasks. Some of these include indexing which is creating and sorting a searchable database of your data on the new software. Also fully installing and moving new features to the right places. Which you can experience an increased battery drain. When the tasks are fully complete, which usually takes a few days to a week, your iPhone will return to normal conditions.
You should also read my User Tip which further explains this in detail:
Addressing the Common Increased Battery D… - Apple Community