Ios 15.1 battery drain

Turning off the Apple News Widget does seem to have fixed the "standby" battery drain. Both iPhone 11 Pro Max and iPad Mini 6 are at 100% after almost 3 hours unplugged from the charger this AM, without using low power mode. Mind you, I still have background app refresh and push mail turned off.

I was also seeing battery drain faster while using it with that process in the background sucking the life out of them. I'll now use them regularly through the day and see how well they last after this.

I’m traveling right now, so I have to plug into the car for GPS and CarPlay a few times a day, but between those short charges the battery drain on my 11 Pro Max seems to have slowed down significantly with having “turned off the apple news widget” and having done a “reset network settings”.

I might lose 25% with 2.5 hours of continuous all on-screen use, but then when I gently use it for an hour total over the next 3 hours it might only drop 2-3%. The hour after light use I saw 1% drain when it had 13 minutes of screen-off activity during an hour. Tile is also not using as much screen-off battery as before, so that I might lose 1% per hour with location always on. My 6 AirTags and Find My are not draining my battery at all.

I would like to add that I checked my battery app usage and saw that mail was using 23%. I had also recently set my account to fetch data, I would not be surprised if this is where most of the drain is happening. I have switched back to manual mode for mail. I am also installing 15.2.

I have noticed a big improvement since the 15.2 upgrade from 15.1.

Ive been working out in the field for hours and the battery is still close to full.

After 15.1 I would have been 50% or less by now.

It is still too early to say 15.2 fixed the battery drain but overall my iPhone 12 Pro and iPad Pro are both lasting longer on the charge.

how is everyone else doing?

Turn off 5G and everything is fine

I did a “reset all settings” on my 13 Pro. About a week after that reset my battery life seems to be back to normal with about 8 to 9 hours of SOT.

Hi,

I would recommend updating to the latest iOS 15.2.

This should resolve your issue.

Hope this helps.

Harold_73 wrote: "iPhone se battery drains after upgrade to 15.1"

See if updating to the latest version (15.2) helps.

õ¿õ¬

the upgrade too 15.2 and a couple of days patience did the trick

thanks

Hello simoneas7,

Welcome to Apple Support Communities. We understand your concern with your iPhone's battery life after updating to iOS 15.1, and we'd be happy to look into this with you.

If your apps are up-to-date, please utilize the tips outlined in the following article and use your device as normal for 24-48 hours:

Maximizing Battery Life and Lifespan

Let us know if you experience any improvement in the battery life. 

Also, check out this helpful information:

About Optimized Battery Charging on your iPhone

iPhone Battery and Performance

We hope this information is useful. Kind regards.

Can you a little specific in what you mean 'restart'. I know it sounds like a stupid question, because if you mean switch off your phone and restart, then this does not work. I have slowed down my perishable battery drainage by: enable low power mode , auto lock and auto brightness and disable the background apps. To go back to my old iPhone 6 settings, thus I have in my hands an iPhone 13 Pro Max working like iPhone 6! brilliant

iOS 15.1 is definitely a problem. On 14.8 my 11 Pro Max would run forever on 23 month old battery with 91% health. I waited for iOS 15.1 to come out before I did the upgrade, as I wanted to make sure it was stable; and my new iPad Mini 6 was doing fine on iOS 15.0.2 - but iOS 15.1 killed my battery life on both devices! I'm talking about a week or more after an update or wipe and restore, not just in the first few days with spotlight indexing.

Turning off background app refresh didn't help. Turning off location services for most apps didn't help. Turning off push for mail, and changing it to fetch only on power with wifi didn't help. Resetting network settings didn't help. I don't want to set up as new or reset all settings for what was fine just a couple of weeks ago - it's a lot of work to put everything back the way it was. LOW POWER MODE DIDN'T HELP, and I could see my 11 Pro Max or Mini 6 draining just as fast on the graphs regardless of power mode on both devices!

I went from having 20-30% battery left after a heavy usage 16 hour day with 14.8 (wake 10AM - go to bed 2AM the next day) to having 10% left after 10 hours of light usage (by 8PM). I am having to charge again to keep using it every evening; even if I only used my phone for 3-4 hours of "screen on" time. I kept noticing apps like Apple News (or Tile) now using 30% of my battery, despite showing only 20-25 minutes of background use, with background app refresh off and all apps being closed. I just set all the apps to only use location when using the app, but no help.

The battery use graphs don't show enough activity (20-30 min background for 2-3 apps) to account for all the lost energy. I deleted Tile App, since I'm using air tags for many but not all items I keep track of, but that didn't help the drain.

I am also seeing the iPad mini 6 drain at about 7% per hour when untouched, with all these power saving measures that I didn't need to do before on 15.0.1 or so. Before 15.1 it was draining at about 1-2% per hour on iOS 15.0.2. Just today my iPad mini 6 went from 100% to 27% in only 13 hours of complete inactivity today, without being touched and showing almost no on-screen or off-screen use on the graphs. Meanwhile my iPad Mini 4 on original 4+ yr old battery with LTE SIM connected to cellular (but on wifi with BT enabled) will go 14x longer, from 100% to 25% over 7-8 days of standby.

I didn't understand was Apple News running in the background and using so much battery on my 11 Pro Max if New is closed and background app refresh is off. Then an Apple fell off the tree and hit my head like Sir Issac, giving me the idea to turn off the News Widget on the the home screen that you get if you swipe right at the home screen first page. I was at 58% 2 hours ago in low power mode, and now my iPhone is at 56%, so the drain might be gone just from removing the news widget!

I will update on this solution tomorrow (or later today since midnight has passed).

I tried the same with the iPad Mini 6, and in the same time it's dropped from 47% to 38% battery, in low power mode, so it didn't help, but I only have background app refresh turned off and not turned off push mail yet. I shouldn't have to turn these off - it was fine before with background app refresh, and location, and push mail until 15.1

Yesterday I used 100% of my iPad Minii 6 battery for 15 min on screen, and 1hr 31 min screen off!

As a followup - iPad mini 6 battery was at 75% at 1:45AM and while left alone in standby it was down to 70% at 11AM, so 5% drain in 9 hours in standby, NO low power mode or anything.

Before I reset network settings it would have dropped by 40-50% overnight during that 9 hours.

My work Iphone is an older model, Iphone 7 (technically not that old at all, is it, we're not talking the pyramids here) and the battery drain since updating is horrendous. I leave work in the afternoon with the phone at 100% and in the morning, with no use at all all night (it's just lying in my bag), it's at 2%. I updated to 15.2 as soon as it came hoping for a fix but it's the same. I don't have any apps running really either so there shouldn't be much background activity.

Battery status tells me now that for the past 24 hrs 39% has gone to the home/lock screen, 29% to the calendar (notifications and widget) and 27% to telephone (which hasn't been used bar one phone call for 2 minutes while the phone was plugged in).

Why is the home screen draining it? I don't have the news widget @DocJekyl but I have deleted the calendar widget anyway since it's part of the draining. We'll see what that does, thank you for the tip to look there.

However, in contrast to the original question, my private phone is a 13 pro and that seems fine, but I might have a skewed sense of fine since I recently updated from an old Iphone SE with poor battery health. ;)

I'm not going to take the risk of updating my old work Ipad (an Air2) for now anyway.

Contact Apple via their Feedback page or their telephone support, the more who report this the more likely they will issue a fix soon.