Battery Drain iOS 13.1.2 on iPhone

I've been on with Apple support for an hour since reporting the problem with "burning hot" heat, and extremely rapid battery drain even without application usage. They've run diagnostics, noticed recent heat thresholds were high (but I didn't get any warnings). I also had people not be able to hear me during a call, whether using a headphone, speaker, or normal mode.

I've turned SIRI off entirely, SIRI was 51% of my battery usage and I wasn't doing anything on this phone since the upgrade.

In 40 minutes, it has gone from 27% to 16%, only thing I've done is look at Battery Health!

Initiate a support ticket, they need to know how many of us are experiencing problems after 13.1.2- I called today and they said release engineering didn’t have any open issues- report it thru the chat- they aren’t looking in this community!

**REPORT**

Just wanted to up date you on my experiment. I had my iPhone with me for at least 8 hours without being able to charge, but I hardly used it. Some when I got back to base ai opened it and found the following.

After opening phone it showed 22% and promptly started counting down battery % until it got to 1% in about 5 minutes. I got reminders to switch to low power mode at 20% and at 10%. 

It then stopped at 1% and did nothing. I was hoping it would switch off but it just stayed on 1% for at least 15 minutes. Then I switched phone off and back on again and the battery % jumped back up to 22%.  So I started using it randomly changed setting to switch screen off after 5 minutes so I can see what happens. It’s normally set to switch off after 30 seconds. 

As I’m typing this in my notes battery is draining albeit slightly slower compared to before. Now at 3% after receiving warnings again at 20% and 10%. Left it to see if it would switch off at 1%? 

Time check at 21.30 and battery showing 1%. 

Time check at 21.40 and battery still showing 1%

Time check at 21.50 and battery still showing 1%, started playing music , increased screen brightness to full and kept phone on at all times, to try and force a switch off, but it isn’t. In days gone past 1% usually means an automatic switch off after a warning. No more warnings either.

Time check at 21.53, phone finally switched off without any warning.

Charger plugged in and within 5 seconds it switched itself back on.

Left it to charge overnight and next morning, 100%.

Had some low activity during the day from around 9am until 6pm, it was never on charge and amazingly it still says 60%. This definitely would have been worse before I totally drained the charge in the battery and started again. It doesn’t appear to be heating up either, so maybe this is a partial solution to the issue. It’s worth a try if you’re currently struggling. I will continue to monitor over the coming days and unless there’s an update in the next 5 days, I will be contacting Apple when I’m back in the U.K. hope this helps.

I have tried completely drained the battery and recharged overnight as other suggested but it does not help.

Under battery usage, I noticed that the Mail App have 24 mins on screen and 1 min background. However, it is using 51% of the battery.

I wonder if the drain is related to the mail app not talking nicely to Exchange Accounts.

There is no doubt at all that the latest update is messing up the phones. Up to yesterday evening, before I HAD to update my iPhone 7 Plus, my battery used lasted (on average) approximately a day and a half. Since the new "update" my phone is on 26% after 4 hours powered on with almost NO USAGE whatsoever.

Besides the Calendar bug (that has reappeared after this "update"), I've not had any issues at all with the phone.

If Apple don't resolve these issues in the next few days, I will have no alternative other than to purchase a new phone - and it won't be an iPhone.

Here is another update from me regarding the battery. I have updated software to 13.1.3 and it has made it worse. Apps are turned off including Siri. Went from 100% to 80% in a half hour just texting. I have a year old IPhone 8. Will either stop in the store or call soon. Or maybe both. This is getting pathetic.

PatMul48 wrote:

I've updated my 7Plus to 13.1.3 in the hope that it will resolve the battery drain issue

The release notes for iOS 13.1.3 didn't say anything about battery life so I'm not sure why you thought it would resolve your problem.

Got the new update a few days ago and it seemed good for a few hours, then started getting hot again and battery goes down fast again. It did fix the ringing issue, which it said it would. Now they need to fix the battery drain and phone getting hot.

Hi again,

Another update with my IPhone 8 and the IOS 13 battery problem. I met with my son on Saturday, has Iphone 8 also, got them at the same time. Says he does not have any problems with his. However mine continues to drain rapidly. We checked the battery health and it says that I have 95% maximum capacity. It also says my battery's health is significantly degraded. So tomorrow I am heading to the apple store and have them look my phone over and see what they have to say about this IOS 13 and what it is doing to our phones. Also I noticed which may or may not be related, that I have my notification (sound) for text messages set at 5 times. Use to use 3 and worked well, then started getting only one notification (sound) when I installed IOS 13. Moved it to 5 and still only get one. So will ask about that too. I will post what I find out

Hello again. Ok, another scan was run on my phone. The scan showed

that the battery is not good so I am currently getting the battery

replaced. I still think maybe IOS 13 is messing with it but at least I

will have a new battery. Have another year with the phone so it better

work. I also asked if having it on the charger most of the time could

affect and they said no. So time will tell. Will see what happens and

will post again if necessary to update you all

its not about your iPhone being old or any Apple tricks. A friend is experiencing the same problem on the new iPhone 11. We did some tests together only to find that the battery drop to 30% very quickly. We did everything we could find useful but nothing solved it. I regret upgrading to iOS13.1.2

I installed update 13.1.13 by mistake last night, woke up and went to uni from my house which is 1 Hour and 5 minutes, i used google maps and battery went from 95% to 20% by the time i was at the Uni, i had podcasts playing in the background.

this is routine for me, using maps and listening to podcasts in the background. But the battery has gone really bad since the update. I loved my 7 plus and was never going to upgrade unless it broke. But i think apple is forcing me to ditch my beloved phone and go for android or something. In the time it took me to write this comment my battery went from 34% to 32%. How the **** do i resolve this issue? This is a harsh joke by apple!

NorwayPine wrote:

My son works in an electronics department and most people want iPhones, but since the upgrade he’s sold his first Samsungs. People are fed up.

Nonsense. People have been buying Samsung phones for years. I've no doubt that the store where your son works has sold lots of them.