iPhone 7 Plus with iOS 13.4 battery drain problem

When I posted 2-3 weeks ago I was having issues with my iPhone 11 Pro Max, the battery was at around 10% by 7 pm which is not terrible but made me have to charge it if I wanted it to last more, which started giving me a little battery anxiety. After now 2 weeks my phone is almost back to what it was before, with 40% by midnight after a normal day of use. I guess there was some indexing done on the first days after updating to the new iOS but it is pretty much normal again.

This is not constructive either. I've had almost every device since iPhone OS 1.0.

Here's the difference deggie: In 2007, if there was a bug like that, it tended to get addressed within a few weeks. Minus Antenna-Gate and Bend-Gate, things were usually addressed one way or another.

That changed when there were problems with iPhone 6 and 6S batteries and Apple was slowing down the software (that is currently being "settled").

The issue is the firmware. Please do not talk down to me or be passive aggressive.

tldr: XS Max iOS 13 -- perfect battery. iOS 13.4.1 update -- immediately problems until today. Firmware issue.

Don’t get me wrong with this post, I was just as annoyed as everyone else with this bug when it first started on my iPhone. I’m not trying to absolve Apple of their responsibility.

The problem has gone away for me. I must have done 3 phone resets to restore to the new phone status and long periods of low battery use to get there. I know this hasn’t worked for others from comments left here.

I never had the 100% or very high CPU load as others but I had excessive battery drain. It must be difficult to fix something that goes away as in my case.

Recently I had to install some apps for teleworking and I found that Microsoft Authenticator in notification mode caused me excessive battery drain and Microsoft write that their app won’t do this but it did for me. Sound familiar?

High CPU needs an equivalent of Linux top to find what is hogging the processor. It’s pity there isn’t a tool to find this out. It needs contact with Apple to give them diagnostics but their first line support are ignorant of the problem. macOS gives us CPU monitoring, it’s a pity the equivalent isn’t in iOS.

This post doesn’t help the people who still have the problem.

All I can suggest is try restore to a new phone with no apps at first. It’s a painful step because you lose all the configuration you have done.

I’m hesitating to post this because of reaction. Here goes, publish and be ******.

Can it connect to iTunes Mojave or High Sierra?

toninog3,

It's affecting iPhone X, iPhone XS/Max, and iPhone 11. It's also affecting iPads.

This bug is across all compatible iOS/iPadOS 13.4.1 devices.

Oh, really? Prove me wrong then! Or, have the huge number of people who have suddenly developed mass-battery-drain all done exactly the same thing, to cause the problems?

Errr, no, they haven't!

All we've done, is update our iPhones. It's the singular common-denominator that links everyone's sudden mass-battery-drain.

So, unless you can come-up with a solution, other than the usual "wipe then restore" or" you'll need a battery replacement" fixes, please leave the discussion!

The reindexing doesn't take weeks to do. If the issue of excessive-battery-drain fixed itself after 24-48 hours, you wouldn't still be seeing complaints from people using 13.3.1 and 13.4 STILL saying that their device is haemorraghing power, would you?!

[Edited by Moderator]

I have 6 iOS devices and they are all have battery life issues since the 13.4 update. My 2017 iPad Pro is the worst. It drains @ a rate of 20%/day when it is sleeping...and when doing a FaceTime call it only lasts for only 2 hours. ...and yes it was much better before doing this IOS update.

There is never, ever a time when nothing is running on an iPhone unless it is powered down. Just the fact that it is on means that every few minutes the phone reports it’s location to the cellular network, and if the signal is weak or fades completely that uses huge amounts of energy. And that usage is not reported in the battery app.

But you should be charging the phone overnight, every night. It’s better for the battery, and it means the phone can back up every night.

I'm sorry, but even if we do charge our phones every night as you suggest, that doesn't explain why people's batteries are draining so fast.

The fact that more and more people are reporting this, is ridiculous. The fact that some people keep doing their absolute best to deny the problem at every step, passing the buck back onto the user and their devices, is frankly shameful.

In any problem, if there's one common denominator, then the likelihood that that is the cause of the problem. As the only thing everyone who posts about this have all done, is upgrade from 13.3.1 to 13.4, and now our batteries are all dying on us, proves that the fault lies with the iOS. Constantly claming otherwise does not prove anything other than that some people clearly have a vested interest in denying the problem.

Apple need to fix the iOS battery drain issue.

I have the iPhone 8, it was lasting about about 12-13 hours on YouTube at 1080p

after the update to iOS 13.4, Battery does not last 1,5 day, I mean, now it lasts half a day at best with 2-3 hour usage, battery health was 99% and now it is 97, I thought I am killing the battery slowly but then I thought that I updated, phone starts having frame drops here and there when you are scrolling on the internet/messenger/twitter/discord/instagram, I just upgraded from iPhone 4s about 2 months ago and the iPhone 8 after the update feels weird, I think that I am using the iPhone 6s instead of 8 (at speeds..)

Hoping that Apple fixes that on the iOS 14, but I am going to do a research on September if any people are having any problems, I am using it for almost 1 hour now and it is at 72% (48-52 mins)

We are very unlucky..

what's interesting is that I'm having the battery drain issue on my iPad Pro, but not on my iPhone 11. Both were updated to the latest iOS at the same time (Saturday evening). even more interesting is that my iPad gave me the "Low Battery" warning at 10%, so I did a "Hard Reset", and when it came back on, the battery was at 15%. Not huge, but hoping perhaps the hard reset might have fixed it? Recharging the iPad now. Will know later today if it worked. iPhone 11 was used extensively yesterday and battery drain seemed the same as before. Made it through the day with about 25% remaining.

Yes it has to be the new update.....Mine was draining really fast....The battery said 87% but the phone is 5 years old so I thought okay buy a new battery,,,so I did...Now it says 100% maximum capacity and it still drains just as fast as the old one...Closed down all my apps and something is still draining it down even when I don't use it..Mine is a 6S..Also noted after the update certain apps wouldn't open,,,,,,

Have the exact same problem with my 12.9 iPad Pro 2018. Drains 10-20% per night on standby! Tried everything (reset all settings, erasing and restoring via itunes and all the battery saving recommendations) all more than once. It started happening when I upgraded from ios 12 to ios13. None of the multiple updates since then have fixed it. Before ios13 battery had practically no change on standby like my old iPad 2 that still lasts more than a month on standby. Hoped 13.4 would fix it but again...disappointed. When I first started with this problem there very few blogs about it. It seems there is a lot more people having the problem now. Hope it serves Apple so as to do something about it!

I had this myself on 2 occasions since i had apple and i know that this is a bug, there is now way all 6 apple devices that i have in my home start battery draining straight after this update. Aren't this forums to let apple know of problems user face?