iPhone 15 Pro Battery Drain Issue

I have an iPhone 15 pro and have been experiencing the discussed battery drain issue even with all settings optimized per suggestions here. I had the same issue on a iPhone 15 that I returned within the 14 day window as the drain was severe even with changed settings. I noticed iOS 17.3 was available today, so I went ahead and installed the update. I have very limited data now but charged to 99% 35 min ago and my phone is still at 99%. This in itself is drammatically better than what I was experiencing before, a drain of at least 4-5% minimum per hour, even with everything optimized as this Discussion tread has been talking about. So I have some hope. I’ll come back and report more data once available.

@saravanan81

I wanted to share with you guys how I seem to fix the issue with battery drain on my 15 Pro. I was loosing 3% per hour. First I made automation from 10PM to 8AM to turn ON Airplane mode with WiFi and BT left ON so I’m available on FaceTime/iMessage and that Apple Watch battery is not depleted faster due to missing BT connection with the phone. It didn’t improve at all and this was result of over night battery drain:

15% batt / 5h -> 1 batt cycle used per day

with:

FindMy ON

Airplane Mode ON

GPS OFF

BT ON

WIFI ON

Location services ON

Next I tried disable all Location services. Which didn’t help either.

After 2 days I disabled also FindMy and restarted the phone. 1st day, no change, 2nd no change

….but on the 3rd day suddenly battery drain stopped and I got satisfactory result over night:

4% batt / 8h -> 0.5% per hour

and I managed to get only 0.5 batt cycle used per 1 day

with:

FindMy OFF

Airplane Mode ON

GPS OFF

BT ON

WIFI ON

Location services OFF

I thought it was worth to try turn only location services ON. After another night, batt. drain was also low. So I enabled also FindMy and I’ve got really relieved, as it is now already 3rd day since I did this and it still is only 0.5% per hour and only 0.5 batt cycle used per 1 day. I measured the drain solely over night only as that is the only way to keep the same test conditions not influenced by different way of iPhone use.

So after all, it was important in my case to keep FindMy and location services disabled for at least 3 days.

I’m not sure whether this is a permanent fix (I hope) but at least it works now as it should. Also remember that you will always see FindMy process under battery statistics, even if it is entirely disabled. Also it will show always 100% if any other background process is running in parallel. Let me know whether it helped to get this fixed for you too.

JustinJustinJustinJustin Said:

“This response is a complete waste of time.: Brand new iphone 15 Pro with no change in usage from my 13 Pro. Yet, here I am, on day 2 of having the phone, googling why my battery drained from 100% at 8AM to 38% by 2pm.”

———-

If you can’t troubleshot this on your own…

Get this serviced.

Take to an Apple Store;

Setup a Genius Bar Appointment at your local Apple Store. Report back what Apple has to say on this

Take it to an AASP (Apple Authorized Service Provider) for Assistance.

1. Go Here: Find Locations - Apple Authorized Reseller
2. Click: Service & Support
3. Enter: your location information
4. See: if there is an AASP nearby
5. Contact: an AASP that shows up, and find out more about the services that they offer to fix the iPhone

Thanks @MarioIvanov, but nothing in these videos address battery drain while phone is in the pocket or on the night stand. Also, they change all kinds of features that actually have (almost) no effect on battery and most videos like this are just for YT clicks. At the same time, why bother with the iPhone if you turn everything off? And last but not least, for me at least, the iPhone 14 last so much more than the 15 pro while, with absolutely everything turned on.

I am telling you, Apple is training their AI on our phones. :p

"...these are very premium devices and its very less likely that we can blame apple for this...."

You cannot be serious. Of course we can blame Apple! When you buy a new phone, you expect it to at least be as good as the previous one, not worse. You shouldn't have to turn off a boatload of settings that've you've used on every iPhone for the past 10 years just to save battery. Put the blame where it belongs: ON APPLE. NOT THE USER.

I have the same problem. Just normal use. The battery can’t survive a day.

According to the Apple support page for iOS 17.4 (March 5th, 2024) there is nothing specifically directed at the battery that I can see. There are a lot of application vulnerabilities patched, Bluetooth applications accessing private information, applications reading restricted memory, sandbox, shortcuts, Siri issues and quite a few things directed at the Kernel. Also, this update includes additional Moji's.

So, maybe the battery drain has to do with more about application vulnerabilities than it did for the battery. I guess that's to be seen.

About the security content of iOS 17.4 and iPadOS 17.4 - Apple Support

There is some options what I hope that helps.

1. Turn on Low Power Mode - To do it, go to Settings > Battery, and then all the way on the top, you can toggle Low Power Mode
2. Turn on Dark Mode and turn the brightness lower. - Go to Settings > Display and Brightness > and select Dark Mode. To set the brightness lower go back to the Display and Brightness Section and you can change the brightness there, you can also do it by swiping down from the top right corner and changing the brigthness there.
3. In the same menu, Display and Brightness, adjust auto-lock in the auto-lock menu and also Always on Display can put the battery down. To change that, in the same menu, that is display and brightness, you can find Always on Display, for better battery life, turn it off.
4. Keep it between 32°F and 95°F (0°C and 35°C), that is the temperature range what Apple recommends your iPhone should be in.
5. Turning off Background App Refresh. - To do that Go to Settings > General > Background App Refresh and turn it off.

Turning off “Always On Display” made a noticeable difference with my 15 pro battery drain issues.

Settings > Display & Brightness > Always On Display

Not sure they can sort thus without fitting s bigger battery. Turning of location services completely helps but a ridiculous suggestion if you need maps or satnav app! Premium product price like old generation performance. Not sure how Apple’s definition of value to the customers works with this product?

Since the release of iOS 17.2.1 the poor battery performance of the iPhone 15 Pro has been escalating furthermore.

Today the phone drained 11 percent from 100 to 89 in a total screen time of 25 min. Apple Music has been running the background ca. 60 min with idle screen on top of that.

Siri, Find My Phone and most background updates toggled off. Very restrictive Location settings. Most of the day on battery in Low Power Mode. This is an absolute disaster!

Charging cyles: 52, battery health: 100

My new iPhone 13 I use at work (with also 100 percent battery health) doesn’t have this issue and runs with less restrictive settings than the 15 Pro (also running in 17.2.1).

I am very disappointed with the 15 Pro.

I recently came from android to Apple, I got a iPhone 15 pro and the battery life on this thing is concerning, I leave the house at 7 for school everyday and it’s barely making it home, the only thing it’s running is music and all other apps are closed, it’s only 10:30 and my phones already at 53%. Apple, fix this please no modern phone should be dying this fast

It is like a coin toss. You will never know what’s coming. What’s worse I don’t see any difference between 17.0 and any other 17s software. Moreover sometimes iPhone can last so long and the other day doing same thing much less. Once my iPhone 15 pro lasted 5h and used only 50% (on WiFi of course). The next day doing same things only 3h in 50%. How? I turned my iPhone off and on between these to days and it looks like this could be a factor. I am so frustrated. This is the worst battery in iPhone I’ve ever had. Even my 13 mini was better. I could use it all day and yes I had to recharge it at 18:00-20:00 but it was mini. I didn’t even mentioned about mobile data. It cuts your SoT drastically. Even if I don’t use my phone but I am not at the office or at home my 15 pro isn’t capable to last all day (from 7:00-8:00 till 22:00-23:00). Unbelievable.

This is very true turning off the “always on display” does make a difference. The other things I noticed with my iPhone 15 Pro and iOS 17+ was related to ““background app refresh “”and Siri running on everything, writing on every single app in the background. it takes some effort to turn off the “background app refresh” for every single app, even if you thought you switched it off by flipping the one main toggle switch. in reality you have to individually turn off “background app refresh” on every single app individually one-by-one. You can see this in the battery history that apps continue to run in the background for every single app despite flipping that one toggle switch. There are so many things running in the background on this phone and IOS, including Siri. Siri is taking up a tremendous amount of battery drain on the iPhone 15 Pro and turning Siri off for most, everything one-by-one helps with the battery also.

now I get at least 18 hours of battery life from a full charge every time. Give or take. So look closely at “always on display ““, carefully look at “”background app, refresh “for every single app, individually, turn it off, and turn off Siri individually for every single app. This among changing a few other settings, helped my battery a lot.

Same. I upgraded from an 11 pro which was working fine but all of a sudden started throwing up an error out of the blue. Never had any issues with it.

Day one with the 15 pro and I had a 100% charge at 9am. 24% at ~5pm dead by 7:45

so far the 15pro battery experience is worse than the 11pro.

the phone also feels like it is overheating when I use it. Not running anything crazy on here that I didn’t have on my 11.

straight up feel scammed. Should’ve spent the $600 on a replacement 11pro TBH 🥲