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sam2628
User level: Level 1 (4 points)

How to fix excessive battery drain on iPhone 16 Pro Max after software update?

I have a 16 pro max with software 26.6.1. I used to go almost 24 hours without charging my phone. Ever since I upgraded to 26 software, my battery barely last 8 hours. Lockscreen is one of the culprits. I have tried a lot of fixes but nothing seems to help.


[Re-Titled by Moderator]

Original Title: Battery drain

Posted on Sep 17, 2026 9:13 PM

1 reply

Mac Jim ID
User level: Level 10 (105,996 points)

Sep 17, 2026 9:28 PM in response to sam2628

There are 2 things that would be useful to troubleshoot:

  • What is your Battery Health at Settings > Battery > Battery Health
  • Post a screenshot of Settings > Battery > View All Battery Usage that shows the 2 battery graphs and the top 5 apps consuming your battery.

Originally posted at discussions.apple.com/thread/256359424