User level: Level 1 (12 points)been having an excessive battery drain issue after ios 27 update last week on my iphone 17 pro. also, the standby mode is not working properly (only silhouettes are showing) and noticed that it contributed to the battery drain as well. is there going to be a fix to be rolled out?
Posted on Sep 22, 2026 6:58 AM
User level: Level 10 (97,882 points)Sep 22, 2026 4:34 PM in response to ge_almazan76
Welcome and thank you for reaching out. 🤗
A rapid battery drain after updating to iOS 27 can happen while the system reindexes and optimizes in the background, usually taking a day or two.
According to Apple: If you notice that your battery life has decreased after updating your device, wait a few days and then check again. Even though you can use your device immediately after an update, certain tasks related to the update continue in the background and might affect battery life and thermal performance. While they're ongoing, you might see the Insight Ongoing iOS Update in Settings ➢ Battery.
If you need more help, contact Apple Support directly.
Take care!
Smiliñ 😎 Brian | Community Volunteer
User level: Level 10 (199,348 points)Sep 22, 2026 7:08 AM in response to ge_almazan76
We are all users on this site.....just like you. Apple is not here. They will not see your post or reply.
No one on this user site will know what Apple might do or when they might do it.
Your best bet would be to provide feedback directly to Apple here:
User level: Level 2 (327 points)Sep 23, 2026 1:03 AM in response to ge_almazan76
Hello,
Since you are facing battery drain after an update, usually its temporary processes in the background. If you want to know more about it, watch this video:
https://www.youtube.com/watch?v=on8DdkxGbFk
Hope this helps,
Thanks
Originally posted at discussions.apple.com/thread/256362693