iPhone 14 Plus iOS 16.4 Battery Drain

I recently purchased an iPhone 14 Plus and updated it to iOS 16.4. However, since the update, I have noticed a significant decrease in battery life. My phone is draining its battery much faster than before, even when I am not actively using it.

I have tried restarting my iPhone and checking the battery usage stats to see which apps are consuming the most power. I have also disabled background app refresh and location services for apps that I don't use frequently. Unfortunately, these steps have not resolved the issue.

I am reaching out to the Apple community section for assistance in resolving this problem. Has anyone else experienced similar battery drain issues after updating to iOS 16.4? If so, have you found any solutions or workarounds? Apple should take necessary actions. why a trustable company do like this to its customers?


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Posted on Mar 29, 2023 10:27 AM

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Apr 28, 2023 3:29 AM in response to aramana

Battery life on iOS 16.4.1 is terrible.


I was traveling abroad for ten days. My iphone14pro was on airplane mode the entire time, and battery was dropping steadily while just being on standby. I had to charge it nightly as if i used it heavily during the day.


Meanwhile i was using iphone11 (running on ios15.x) for taking photos, maps, and had mobile data turned on. Battery life was much better considering i was using it all day.


I made the right choice to not update my i11 to the latest ios version.

Apr 28, 2023 4:22 AM in response to coelacanthvalley

I updated to 16.4.1 at least four days ago, since then I've been monitoring this extreme battery drain through Battery settings; overnight last night it dropped 29%, and when I select individual hours to find out what's using the battery, I see Screen Time On 0m, Screen Time Off 0m, Usage by app is not available for 4AM - 5AM (for example). Drop is very consistent across the overnight hours though - it's a very steady downward slope on the battery graph.


I'm using an iPhone 12 mini w/battery health at 96%. Battery would consistently last almost 48h prior to 16.4 / 16.4.1 - it was great! - now I don't make it to 24h, even with minimal use. Phone is also consistently warmer than usual, even when not charging and w/cool ambient temperatures, so it must be doing something in the background, even overnight, but I guess whatever it's doing is a hidden system process that don't get reported to the Battery settings? I would figure after four-plus days, that any iOS "indexing" would have been completed.

May 2, 2023 5:37 AM in response to underchuckle

Just wanted to follow-up on this. About six days after updating to 16.4.1, my battery appears to be back to normal. This indicates that the estimates of 1-2 days for iOS to perform clean-up, re-indexing, or whatever the processes are, may not be entirely accurate in all cases. This has just been my experience with this latest update, but wait a few more than 1-2 days -- give it a week! -- and see what happens.

iPhone 14 Plus iOS 16.4 Battery Drain

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