iPhone 7 Plus with iOS 13.4 battery drain problem

@ktovilo thanks, I have deleted my work (MS Exchange) account and it seems to have made a difference. It’s early days, but I’ll see how it goes through the week.

your thoughts may be the answer!

thanks

Ktovilo has suggested that it may be the mail app connecting to a third party account, which my iPad was.

I have deleted the works account, and it’s looking promising.

i will update here a little later this week if it does improve my battery life.

Ktovilo’s suggestion is on pg 17 I think.

had a nice convo with an apple rep today! About how its not a coincidence that 2 iphone se’s both went kaput one right after the other. After updates. One happened to have a battery replacement awhile back and was just coming off the warrenty the other never had a problem both wont charge or turn on. Apple says its the device and has nothing to do with updates. Want over 200 dollars to fix it. Apple needs to be sued again! For purposely killing phones! I was a life long apple person but im done now ill be going with something else as soon as i can

Before you go out and pay your $10 million retainer to the law firm I would suggest you wait unit iOS 13.4.5 is released and see if anything changes. But on every update give it 72 hours to finish updating indexes, etc, always check the behavior of your mail app, and check what processes/apps are using up your battery.

This has been a roller coaster ride for my iPhone XR. I started to experience must faster battery drain just after install IOS 13.4 and by following advise in this forum, stopping Siri, and a variety of other recommendations was able to reduce the drain to a point before the IOS update. Then I installed 13.4.1 thinking there might be a fix. Battery drain started again with all of the "fixes" installed. At this point my Contacts are consuming 68% of my battery drain but have been access for 1 minute of screen time. I am not sure where to start on tackling this issue.

No one should be having to disable all apps, to fix an iOS issue, because - by its very nature - the problem lies within the iOS itself. Such fixes defeat the object of owning a £700 smartphone. What next? Tell people NOT to use their phones at all?!

Sheesh!

Thanks. I've done that a few weeks ago when I first started following this forum. I've turned off all Background Refreshes, Stopped Syncing iCloud contacts, deleted the initial set of apps that were shown as draining my battery, stopped all uploads to Siri and turned off Siri, changed Fetch New Data to manual, removed all apps that I have not used in the past 6 months. I'd hate to have to delete my Contacts just to see if this would correct the Battery Drain. One thing that I recently did was to add Avatars to many of my contacts to show various organizations. Could this cause excessive battery drain? I'd appreciate thoughts and guidance on this before spending more time battling this problem. thanks

YES, you are completely right. I disabled everything you can disable so that every 20-year-old Nokia phone has more functions compared to my iPhone and every time I use it I get more angry and disgusted when watching the STANDBY-BATTERY-DRAIN particularly as Apple even PREVENTS ME FROM DOWNGRADING to an earlier system to solve the problem - it has become such an arrogant and haughty company - I don’t find words for it. Apple patronizes its customers as they were little children.

If you guys missed previous posts....the solution is to do nothing. As has occurred in the past, the battery is draining because it is being utilized internally as the phone “reformats its hardrive” to improve file access/operation, etc.. Stop freaking out, things will return to normal after a few days.

There are YouTube videos to demonstrate the battery life is improved on the new models and about the same on older ones. Perhaps ios13.4 shows improved multicore utilization?

Now, that would be rather strange, since I have been through numerous updates on various iPhones and I have never experienced the professed effects of such "reformatting". If that would be the case, we should be rather accustomed to it by now, shouldn't we? Of course, I do hope that this is the case, but then I would also hope that the "reformatting" is over soon :)

Well, I am not so sure that one wouldn't encounter such problems on other platforms as well, and it is highly probable that this affects just a tiny percentage of users, and therefore it doesn't register. A mere blip on the horizon.

But as it clearly isn't happening because something users do, users can't fix it, either. And if it would be caused by something like what I experienced with my old SE a couple of years ago, that a work mail account repeatedly and uninterruptedly sent requests which went nowhere and therefore drained the battery in no time, that is neither a fault by the user, because any mail account should be working properly with Mail, shouldn't it? If that is not the case, there should be a warning about it, and at least people at Apple's support should know about it, but they didn't, so I would say that it is a bug in Mail.

Now, this can be caused by something similar, something which doesn't affect all users, but it shouldn't be left to users to find out what that may be. I was lucky to stumble across the solution after well over a year and I got myself a brand new phone even, and the problem was fixed by moving the account to Gmail's own app, which obviously works as it should.

What causes this I don't know but what seems to be clear, is that the fault is hidden among Apple's own software.

i didn't mean me suing them i meant whom ever started that other lawsuit im just not gonna use apple anymore when my contracts up. And i cant wait till the next update as their update killed the phone it doesnt turn on period and it wont restore at all ive been thru troubleshooting process theres nothing i can do they want 260 something dollars to repear it which they tech wont be able to do cause the other phone that happened to have a battery replaement and was still just at the warrenty was not ablt to be fixed and they sent a new one so repairing it would be buy a new iphone se for 260 something dollars...

This is 1000% confirmed iOS 13.4 update problem. This is utterly ridiculous. I have 2 phones, as soon as i updated to 13.4 the phone that used to last for days dies within a few hours. To confirm my theory I updated a 3rd phone (bad move) and exact same issue, battery drains exponential in matter of hours. Apple needs to resolve this ASAP! this is totally messed up.

My iphone 11 won't respond after update to ios 13.4. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! The screen is black and a can't turn on the phone. I try charge the phone, but its don't fix the problem. The iphone simplily won't respond. HELP ME, PLEASE!!!

Thousands if not more are yelling, just google it there are loads of things about battery drain & iOS 13 & how to try to stop it but nothing works.

i did a flat rebuild on my phone with the latest stable iOS release & no other apps or configuration & cpu still at 100%.

like I said earlier it’s not only the battery drain it’s loads of other things as well, a lot of people have started to use a third party mail app because apples one isn’t working most of the time.