Hello Apple Support,
After updating my iPhone XR to iOS 18.7.2, I’ve noticed a major battery drain issue. The battery percentage drops quickly even when the phone is idle, and it sometimes gets warm during light use.
I’ve already checked background apps and battery settings, but the issue remains. Please look into this and let me know if there’s any fix or upcoming update to resolve it.
Thanks,
Fozle
After an update, it is expected for several days to increase battery drain and the phone will also get warm while the file indexing and photo optimization is being performed in the background after the update. For most this takes about 3-5 days, so with you currently at the 5 day mark, that should have just now been completed.
About Apple software updates - Apple Support
At this point if you are still experiencing the same issue, then I would recommend to first perform a Force Restart:
Then if still a problem, post the screenshot of Settings > Battery showing the green battery graph with the last 24 hour option, and also the top apps consuming the battery. I agree, you should not be having to charge your phone 2-3 times a day.
Meelaya wrote:
Right, but that still doesn't explain the battery drain because I have people using the same META apps on their phones (iPhone 12 and iPhone 12mini) with previous versions of the iOS (18.6.2 and 18.7.1) and they update their apps constantly and they don't have the same battery drain problem as I have had with iOS 18.7.2 and iOS 26 (on my other device). So, that isn't the only explanation.
I have not seen which apps are the top battery consumers on your device, I only used the Meta apps as an example because those have been commonly seen and also called out by Google on a completely different platform where iOS 26 is not even involved.
Two users are going to have a completely different Social Graph with different data points, which is why if you create a brand new account without any "Friends" and don't allow access to your Contacts, you will see very little battery drain from that app. You will see much more based on the data it has to work with depending on the app, and increases when there are other Meta apps to share that data with:
None of this is secret information and it should not be surprising to anyone. Meta posts its advertising revenue every quarter and last quarter it was $50 billion dollars for a 26% increase over last year. Their user base did not increase that much but the value of each user due to the amount of data collected did. It is also disclosed publicly on the App Store where they are required to tell you the data they are collecting from your device. As an example, just take Instagram and look in the App Store for what is collected. You may ask yourself why that is needed simply for a photo sharing app, and you should be asking why. Multiply this with the data collected from a different Meta app and you can see how this Social Graph is built and how it can differ from each user.
Battery drain issue after iOS 18.7.2 update
