Battery drain issue after iOS 18.7.2 update

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

Posted on Nov 7, 2025 6:57 AM

Reply
Question marked as Top-ranking reply

Posted on Nov 10, 2025 8:34 AM

Meelaya wrote:

Just posting this comment cost me 2% of battery.

Post a screenshot of what you see at Settings > Battery with the green battery graph using the last 24 hours option and the top apps consuming your battery. Some apps have background activity that will consume your battery even when they are not being used. If you updated on the day 18.7.2 was released, then you are just now at the 5 day mark where you should be seeing the file indexing and photo optimization being completed after the update. If Home & Lock Screen is showing up in that screen shot then that is a good indication that the background indexing is still going on.


Little confused when you say your Phone and Battery are new, but say that your Battery Health is 92%. That just brings up more questions:

  • What model of phone do you have?
  • Where did you purchase it?
  • Did you replace the Battery at Apple/Authorized Apple Service Provider, or was that done someplace else?
  • Was the phone purchased as refurbished/used where you have no idea if it is a genuine Battery?
45 replies

Nov 16, 2025 9:11 AM in response to Mac Jim ID

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.


The phone was draining battery even when instagram was uninstalled. I reinstalled it and the drain became only slightly worse (the only META app that I use more frequently, I don't use WhatsApp as much as I use Signal instead).

Nov 16, 2025 5:43 PM in response to Mac Jim ID

Marc we both tell you the same thing. I had the same versions of meta apps with iOS 18.6.2 and the same with ios 18.7.1. I updated them after I noticed excessive battery drain with ios 18.7.1. The battery drain is worse with ios 18.7.2. What is the point on deleting meta apps and use them on safari? Of course the battery will be better because it is not pleasant to use instagram on safari. What is the point having an iPhone without whatsapp? You do not provide any specific solution. Only supporting Apple

Nov 17, 2025 9:52 AM in response to fozle0_0

Same issue.

whenever we update iphone it create same issue, battery drain thats it. Everybody here, please if not updated already then dont do the update. Nothing change in fact battery drain fast only. Samsung is improving s/w updates i noticed as i have it. But iphone i am really depressed. So much expensive mobile n at the end problem problem problem…

Nov 16, 2025 11:23 AM in response to Meelaya

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:

  • Number of friends
  • The friends of your other friends which increases exponentially to suggest friends to you.
  • Contents of posts you liked
  • Other users who liked your posts
  • Comments made in both direction.
  • Object detection analysis of photos you submit for suggestions. Post a picture of a BBQ and just wait for ads for a new BBQ to come in. They have checked your location so the retailer will be one near you.


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.

  • Contact Info
  • Health & Fitness
  • Financial Info
  • User Content
  • Browsing History
  • Usage Data
  • Purchases
  • Location
  • Search History
  • Sensitive Info

Battery drain issue after iOS 18.7.2 update

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