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szymon172
User level: Level 1 (4 points)

New iPhone 17 Pro battery draining rapidly

Hey ive been experiencing battery drain in my iphone 17 pro that i bought a week ago. For example, my phone today is at 70%. I had it at 100 in the morning and i have almost 2 hours of screen time. No games. It doesnt seem normal for a new phone especially the pro to run out that fast. I dont have background app refresh on. Last week i used 80% with like 10 hours of usage which was pretty good. I dont want to use the battery saving options since i bought the phone so i can use 120hz.

Posted on Oct 14, 2026 4:15 AM

3 replies

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

Oct 14, 2026 9:29 AM in response to szymon172

If it has been beyond 5-7 days after setting up with iOS 27 in order for the background processes to complete, then post the screenshot at Settings > Battery > View All Usage, which shows the 2 battery graphs and the top 5 apps consuming your battery. Also let us know on the bottom of the screen if you are seeing any noted System process. This could be useful to know if your System indexing of files is still continuing after the set up. That indexing will be performed quicker when your phone is plugged into power and connected to WiFi at night.


Certainly Meta apps will consume your battery faster, even when not using the apps. Turning off Background App Refresh does not stop those background processes from running on your phone to harvest your data and build your Social Graph used for their apps. The only thing Background App Refresh does is to update the UI, so it does not need to refresh when the app is launched, not a big battery consumer anyway.

WheelieNick
User level: Level 9 (74,110 points)

Oct 14, 2026 4:17 AM in response to szymon172

Drop from 100% to 70% with only about 2 hours of screen time on a brand-new iPhone 17 Pro is faster than expected, though newly set-up devices often go through a few days of background indexing, cloud syncing, and machine-learning optimization, this is why it is dropping faster when it is new, or after a software update

Smilin-Brian
User level: Level 10 (97,882 points)

Oct 14, 2026 9:08 AM in response to szymon172

Welcome and thank you for reaching out. 🤗


A rapid battery drain after updating to iOS 27.0.1 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

Originally posted at discussions.apple.com/thread/256375985