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toshikobe Author

Level 1

15 points

Battery drains so fast after upgrade to iOS 15.3.1

Mine is iPhone 6S. I just got new battery replacement at Apple Store on January 15. Then iOS upgrade to 15.3.1 sometime after that kills iPhone. It drains so fast. By my typical usage, I don't have to charge until I go to bed, but I had to charge at 9-10am, then afternoon, then evening. My battery health (max capacity) is still 100%.

I believe this is something to do with iOS 15.3.1. Apple needs to investigate and fix this issue. Seems like many people are facing this issue.

Posted on Mar 19, 2022 1:50 AM

Best reply

Sean_W.

Level 6

8,224 points

Posted on Mar 19, 2022 2:02 AM

Here are some articles that may help.

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Battery drains so fast after upgrade to iOS 15.3.1

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