iPhone 7 Plus with iOS 13.4 battery drain problem

It is very frustrating when your phone suffers the battery drain after a installing a new release of iOS. I’ve had it twice with my SE but I managed to coax a recovery with multiple recover to new phone installations and a period of low power mode. iOS 14.0 didn’t cause a problem for me luckily.

What you mean by recovering? Like backing up phone and then resetting it clean and install back up? Spoke to two friends of mine, one who has a 8 Plus and another who just bought a 11 pro 3 months ago. Both are fearful of upgrading as they have had bad experiences before and the last thing on earth is that they want to be frustrated with a phone. Both of them also said that this will be the last apple product they buy.

By recovering I mean that I used the Restore phone button under General on the Finder window. At some point you choose the option to restore as a new phone, this installs the latest iOS release and does not restore/recover your installed apps from your backup. I described what I did earlier in the thread, I know there are many posts here now, but it’s a lot to repeat again. It didn’t help solve the problem for some people. I ended up doing this 2 or 3 times, slowly adding my apps. The last time I ran just iOS in low power mode until the drain stopped. It is a painful process when you have lots of apps installed.

good luck

Aah ok. Think I’ll just give it a few more weeks or wait till next iteration of iOS 14 and see what happens. Contacted Apple support and they replied and asked for screen shot of battery activity. Not sure what they gonna do with that but let’s see. Thanks for the suggestions

The battery activity showed lots of drain but no apps using the power. I used feedback to complain about the useless report because it wasn’t helping to find what was drawing the battery. I concluded that it was something in iOS causing the drain, hence no app activity doing the drain. You need something like macOS activity monitor to see what’s running. Other people have reported cpu running at 100% but I didn’t get that.

[Edited by Moderator]

In that case use the Feedback link to make sure you are heard: Feedback - iPhone - Apple

Do it now since iOS 13.4.5 is in beta.

Everyone should report the problem on the Apple feedback web page https://www.apple.com/feedback/iphone.html

If anyone could explain this - suggests 50% battery drain overnight (when not plugged in), with nothing running...?

This is how good Apple software is, it’s allowing “recently deleted” software to kill my battery! WTF Apple, get a grip...

There’s not enough data in a phone to take this amount of time “reformatting”.

my problems started when going from 13.4 to 13.4.1

and can anybody explain this...

After my last partial charge, my battery went down for more than 50% in 6h, with 3 min screen on and 0 min screen off (I disabled background apps a long time ago.

This battery drain, I call it, roller coaster drain:

Hi:

after update to next version (13.4.1) it’s will good . And very better...