iPhone 15 Pro Battery Drain Issue

Double check, under 14 days you can return (if bought from Apple) I got mine from a franchise here in UK called IStore their policy is 20% if you have opened the box and want to return it! Anyway, there MAY be a glimmer of hope. I found with location services turned off completely and no always on screen battery life became more tolerable.

I installed iOS 17.03 update this morning and turned location services back on (as I use maps and 'find my') So far in 7.5 hours I have dropped 18% which I reckon is ok? Not the most intense day of use so early days to say things are good. But it seemed that the power drain was heavy and constant before this update. I hope things stay this way and that Apple get to improve this situation further. Obviously a phone of this cost should have a decent battery life.

Good luck all!

I was eight years with a 1st edition SE. Went to 15 pro. I trimmed all power use to bare minimum, with Location services being the worse problem which I had to leave off unless I was using map app or similar, this made it just about useable with a not intense use day. But, since since IOS 17.03 things have vastly improved and I can get through the day with power left even limiting charge to 80% (prolonging battery life hopefully) and with location services back on! (selective apps allowed to used it though) If you've not got 17.03 give it a try. Hope it all works out for you..

I took the battery optimizer off and did the update and mine is waaayyyy better!! Within 2 hours my phone was down 20% with minimal use. Within 10 hours, it was dying. Since doing those things, my phone lasts day and night!! I took it off the charger at 8 this morning and it is now 2:35 in the morning and my phone is still at 28%. They told me for the first couple of weeks the battery would drain faster because the phone is optimizing trying to get your pattern down so all you have to do is turn the optimize off. Hope this helps

I took the battery optimizer off and did the update and mine is waaayyyy better!! Within 2 hours my phone was down 20% with minimal use. Within 10 hours, it was dying. Since doing those things, my phone lasts day and night!! I took it off the charger at 8 this morning and it is now 2:35 in the morning and my phone is still at 28%. They told me for the first couple of weeks the battery would drain faster because the phone is optimizing trying to get your pattern down so all you have to do is turn the optimize off. Hope this helps

So, first back your phone up thru iCloud.

second - go to settings —> General —> Transfer/Reset Phone—> Erase all content and settings

after the phone resets, do a restore from iCloud —> everything should appear almost instantly, if not within an hour. (messages, apps, app data, contacts, pictures, notes, etc. should all be there…but again make sure to do the initial backup or you may lose your files.

hope this helps!! So far still working fine for me :)

Are you in a hot place? Ambient temperature can cause the battery to run down faster. Don't leave it in the sun (e.g., on the car dashboard while driving). Take it out of your pocket when the weather is hot (over 95 degrees).

FOUND THE FIX

While this list is not exhaustive, it does underline most of the primary power-hog features which your iPhone is using.

Disable Face ID features:

It's really quite logical; everything requires power to operate, that's basic physics.

Turn off the always-on cameras.

1) Settings > Face ID & Passcode > toggle OFF Require Attention for Face ID & Attention Aware Features

If the issue continues, turn off Face ID completely and use passcode moving forward instead.

2) Settings > Face ID & Passcode > Reset Face ID > Settings

Why Face ID does this:

Face ID uses multiple cameras, on the front of your phone, to find your face and track eye movement. In other words, your iPhone's front cameras are always on and looking, when Face ID is on/setup. These cameras need energy to operate and the A16 processor to process what it sees. The same goes for "Hey Siri," the microphone is always on. Switch that off too to help increase battery life, throughout your day.

Disable Siri's Ear:

Settings > Siri & Search > Listen for > off

Disable Background App Refresh:

Settings > General > Background App Refresh

Disable Location Services:

Settings > Privacy & Security > Location Services > toggle off all the apps you don't use or know your location will never be needed.

While all these features may be cool, they will use more battery power, when they're running. Period.

If you choose to leave any of these features switched on, that's OK, but it will consume use more battery power.

The phone has one year warranty, I cannot see anybody mentioning that they had theirs changed. That is the last option. You can vent here but not much is going to happen as Apple does not seem to care and even when I physically went to the Apple Store they said they 'never' heard about this issue....but they saw it was draining and they offered to change straightaway. So there IS a solution, even if not the ideal one. And not all phones have issues, both my husband and a friend has iPhone 15 pro max and never had problems. Have the phone changed.

I bought my iphone 15 pro a couple of days ago! I had the 13 pro max before and it had the best battery I ever had! So the first day I was so freaking disappointed! But today surprisingly it did soooo well!!! I turned off the always on display completely and I think it really really helped! 7hrs easily as you can see and I’m on 27%! Fingers crossed it will stay like that!

Actually, it's quite common to see new phone underperforming in terms of battery life.

This is because of the phone is still learning your usage to optimize the battery which usually take quite a while. I bet you will see a significant improvement in power longevity after a week or two.

Moreover, I'd like to share some of my personal settings that I use to make my Iphone last a day:

1, I often use low screen brightness (around 30% to 45% of brightness) to preserve more power.

2, I always disable on-screen display since I just don't find it useful (Old habit of using Iphone I guess)

3, Only apps those required to use during my job will be excluded, the rest will be suspended from running in the background

4, Setting a short auto-lock duration is also very crucial since there is no point letting the screen on when you are not using your phone. My personal auto-lock duration is 30s

5, Last but not least, get a smart plug, set the smart plug duration to match the time that your phone needs to charge from 20% to 80%. This sounds overkill but probably the most effective solution based on my personal experience. I can feel that my current Iphone 14 battery last the longest out of all the Iphones that I've been used. This is also the first phone that I plug into my smart plug.

Thanks for reading!

[Edited by Moderator]

Hello guys! I have had the same problem and with my iPhone 12, I would still have like 30-40 % charge in the evening. With the iPhone 15, I would need to charge it again at around 7 p.m., which is quite weird. Now I have read that this could be due to iOS 17 with a lot of apps not being able to "cope" with it. They suggested a forced restart, and I have to say, that this helped a bit and my battery is not discharging at the rate it used to.

Here is the link on how to do it:

Force restart iPhone – Apple Support (UK)

Hope it helps!

Did you do the latest iOS ? That will solve the over heating. My battery is slowly getting better. So download 17.0.3 if you haven’t yet.

So I see the there has been a new version of iOS 17 released which is 17.2.1 and after taking to an Apple advisor it’s meant to fix the battery drain issue. I think it is fixed!

So I had the iPhone 15 Pro now for 24h and have been affected by quite abnormal Battery drainage.

This is what I have so far....

1. Update IOS to the newest Version
2. In case you don't have a 5G Plan and your Phone is running 4G, set it in the Mobile Network options to 4G or Update your Plan to 5G

I have the impression that when you are on 4G but the Setting is on 5G the Phone is constantly trying to Switch to 5G, leading to abnormal consumption.

Since I did this, I am now on 100% since 4 hours which is definitely different than before.

Hope that helps....

My iphone 15 pro is good now. I had to reset it. I turned off always on and background refresh. Took off apps that I did not really need. And the battery lasts me over 24 hours. When I wake up in the morning, it is still at 65%. A d now, I am using it for an hour already and I am still at 65%. Can’t complain!