iOS 13.5.1 battery drain

Stury, I deleted the apple music app. Restarted the phone and reinstalled apple music. Got rid of the problem for me.

Going to Settings -> General -> Background App Refresh, and turning off this setting for Music seems to have helped with my battery drain issue.

Did you restore as new and not restore from backup for a few hours to monitor drain with just stock apps?

Just tested with 2 iPads. 1 iPad (on the left) is iPad 6th gen with 13.5.1. The other iPad is iPad Air 2 with 13.4.1.

Both few mins after reboot, Bluetooth disabled, Background refresh turned off. All apps closed apart from Sysstat lite.

This is just a snapshot of course, but the CPU usage of the 13.5.1 iPad was 40-70% all the time, the 13.4.1 CPU usage was between 6-12% all the time.

jayo007 wrote:

hopefully they see this tread and act as this is a nightmare at the min

Apple doesn't read here for suggestions or feedback. If you believe your phone is experiencing a problem, use the Contact Support link at the top right of every page of these forums and let Apple know.

So today and yesterday I kept in mind to force shutdown every app and yes, I have the "normal" battery usage.

Wifi, Cellular data and location on. Lots of things running in HomeKit. (Since I've introduced HomeKit, my battery usage is slightly heavier as before, but that's since the first versions of iOS 13.)

Conclusion: a new fresh install of 13.5.1 took a week till 10 days (!!!) to become stable.

The 3 problematic apps keeps running in the background until a forced shutdown.

peter_watt: like your Barometer app, I have 3. That's the problem! I used them as long as I use Apple phones. They never gave problems.

I forgot to shutdown "buienradar" this evening. Look on the light blue bars...

Hi Gert, yes it is complex, and the main problem is the battery app only shows minutes of use and not power used

Your buienradar app running at 18:00 to 19:00 has 100% background usage (light blue), all 60 minutes, yet hardly used any power compared to the app running for 25 minutes in the foreground with only 10 minutes background.

The reason my Barometer had to go is that I cannot see any justification for such an app to be running constantly off screen so I suspect foul play.

The battery usage graph is a guide to look for culprits but all apps use a different amount of wattage based on CPU burn.

Even more frustrating not all processes appear as apps on the graph. It is just as likely to be settings or network traffic as it is apps. Hence the ultimate approach of clearing the whole thing down as new then building up again. I do that every six months for maintenance.

Or wait for a fix if one exists.

The background drain has nothing to do with installed Apps. I did a clean install of iOS 13.5 and 13.5.1, installed no Apps and the background drain is happening. I lose close to 50% overnight with no apps installed (beyond the default ones), no apps open, and no apps in the background. This problem is happening on my iPad 9.7" latest gen, but not on my iPhone 11pro.

IOS 13.5.1 BATTERY DRAIN WHEN YOU TURN IPAD PRO ON THE NEXT MORNING BATTERY HAS DROPPED FROM 100% TO 60%. I HAVE DISCOVERED A FIX FOR EVERYONE WHO HAS INSTALLED THIS USELESS IOS UPDATE AND HAVING BATTERY ISSUES. IF YOU PUT YOUR DEVICE INTO AIRPLANE MODE AND SWITCH IT OFF AT 100% CHARGE YOUR BATTERY WILL STILL BE AT 100% THE NEXT MORNING NOT AROUND 60%. HOPE THAT FIXES EVERYONES BATTERY PROBLEMS UNTIL APPLE DO SOMETHING ABOUT THIS.

"...Tho only answer to battery drain IOS 13.5.1 is to factory reset from Itunes on PC or laptop...."

Absolutely!

Been saying it from page 1

Another remedy could be recalibration where battery indicator drops in steps

https://discussions.apple.com/thread/251493077

but take care not to leave it flat more than two hours.

I’m not sure if this helps, but some of you can try this and see. I turned off everything Siri and restarted my phone. After a day, still noticed Siri draining more and more (up to 54%) of my battery in one day. So I went and turned Siri back on and yesterday, my battery life was somewhat back to normal. Not sure if that’s a long term result or a short term fluke, but will be trying it out for a few days to verify if it helped. I’d try a fresh install of the OS, but did that with my iPad already and no success. This “seems” to have helped, but it’ll take a few more days to make a better correlation. Keep an eye on your battery usage app. For me, Siri was my biggest drain.

iPhone X 256gb owner here in the UK. I'm going to chime in here with a me-too. Prior to this incremental update I could happily go about my day without having to worry about battery drain or such. My battery health has dropped now by 2% in the days following the 13.5.1 update and is now at 83% health. Prior to this on 13.4.x I was on 85% wear and getting very good use which even included the odd light gaming session on Mario Kart. I'd (on average) end up plugging the phone into charge at the end of the day, around 11pm with at least 25-30% remaining even with the battery at 85% wear. Now, going about my same daily routines I cannot get to 5pm without the phone being at <10% and that is without any gaming or photography. Browsing with Safari is a bit of a joke and drains the juice very quickly. So it's ended up losing ~2% per minute screen on time regardless of opening any apps or not. Safari brings that up to ~5% per minute lost and phone calls ~10% per minute lost. I now find myself having to restrict what I'm doing for fear of running out of battery which is something I have never had to bother about prior to this update. By the way, those numbers are based on a bare metal DFU install with no extras installed. Either the are a heck of a lot of people with 'suddenly' faulty hardware (as has been eluded to in this thread) or, as Occams Razor would dictate, that the update is in some way faulty. In any case, there seems to be no relief for this problem forthcoming soon, so it's back to my trusty Galaxy S8+ backup phone, which incidentally is the same age and lasts 2 days on a charge. Come on Apple.

I did this in the past and it improved battery life. With disabling Hé Siri, I can make 2 days without charging. At the condition I shut down every app what keeps running in the background.

I'm at very low battery level now, but the reason is my flashlight was switched on in my pocket. It was on for 40 minutes.

The phone can be used, but when I forget to close the annoying apps, I can go charging. That frustrates me.

Battery health is 96% since last autumn I think. With the complete erase a few weeks ago it even was 97% for two days.

I think, it stays at such an high level because of the very few chargings (before iOS 13.4, hardly every 2 days, sometimes every 3 days).

I think I also found something to extend my battery life... If this has another reason outside this firmware, maybe I have to start a new topic. I'm curious about the comments...

Yesterday late afternoon I made a short movie with my Xs. I entered the apartment of my last customer, stayed there for 30 minutes. I had to search something on the internet for him. I had full 4G reception, but very, very slow internet speed. It must be the local GSM antenna, because when I arrived back at the office, internet speed was back to normal.

Back at home, I looked to the battery stats (it's becoming an obsession since 13.5.1) and I had a massive drain of 10% during the 30 min in the apartment of that customer. It says: Photo's weak signal 1% battery usage. Almost not possible that 1% drains 10% battery. But...

Switched off the iCloud sync via Cellular (now it syncs just via Wifi).

Yesterday evening I was at the swimming pool from 6.25 PM till 9PM. Almost a flat battery curve. I was on 41% when I entered the swimming pool. 2,5H later, still on 41%.

Today from 7.25 when I woke up, till the arrival back at home (6.15PM) still 81%. During the break at 12PM, I read the newspapers, read my mails. During the day made +/- 5 phone calls and used 4 times a spreadsheet in Numbers.

At home from 6.30PM till now, looked 30 min on YouTube, read Facebook, mails, newspaper and made a phonecall of 20 min. Stil 71%...

Background activity apps were forced closed before I went to bed yesterday.

For the time being, this is my good old normal battery consumption. If this might be the solution...

My question (to the moderators: please inform me if I have to open a new topic for this): I've never ever changed that setting to sync. the photoalbum to iCloud via Cellular. When I'm not at wifi it seems to drain the battery via this way. Also when I'm at a normal fast cellular network (not as heavy as it does with a weak signal, but the draining is present)

Is this also a known bug in 13.5.1, or can I suffer an unique problem?

iCloud photos are in sync with iMac, MacBook, iPad and iPhone.

As far as I can see, nothing is uploading or downloading in my Photo library.

Who can explain this?

My phone auto updated 13.5.1 and I started to notice the issue on Saturday when i was out grocery shopping, seeing my phone dropping battery percentages by the minute (it would even do a sudden surprise drop 15% in the course of a minute!)

What worked for me as a simple fix for the moment was swiping away all the background apps, turning on my battery saver, shutting off my phone, and then charging the phone while it was off (it had gotten extremely hot while it was draining). After an hour or so, I turned it on. Surprisingly even when the battery was fully charged, it was still on battery saver mode, which was fine by me. Its still on battery saver mode, and not hot or draining by the minute anymore. Its been a day, night, and morning now.. i don't know how long it will be until the next update.

I'm thinking this will be good for those who don't have computers or can't back up their phones.