iPhone 14 Battery Draining after update

Why My iPhone 14 pro max is drain battery after update to iOS 16.3.1


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iPhone 14 Pro Max

Posted on Feb 15, 2023 4:43 PM

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Posted on Feb 15, 2023 5:56 PM

There could be several reasons why your iPhone 14 Pro Max is experiencing battery drain after updating to iOS 15.3.1. Here are some steps you can take to try and fix the issue:

  1. Check Battery Usage: Go to Settings > Battery > Battery Usage to see which apps are using the most battery. If you see an app using a lot of battery, try force-closing the app or deleting it and see if it helps.
  2. Turn Off Background App Refresh: Go to Settings > General > Background App Refresh and turn off the switch to prevent apps from refreshing in the background.
  3. Turn Off Location Services: Go to Settings > Privacy > Location Services and turn off location services for apps that don't need it. You can also turn off the "Precise Location" setting to improve battery life.
  4. Reduce Screen Brightness: Go to Settings > Display & Brightness and turn off "Auto-Brightness" and reduce the screen brightness.
  5. Turn On Low Power Mode: Go to Settings > Battery and turn on "Low Power Mode" to conserve battery life.
  6. Update Apps: Make sure all your apps are up-to-date, as older versions of apps can sometimes cause battery drain.
  7. Reset Your iPhone: If none of the above steps work, you may need to reset your iPhone to factory settings. Before doing so, make sure to backup your data to iCloud or iTunes.

If you've tried these steps and your battery life is still poor, you may want to contact Apple support or visit an Apple Store to get further assistance.

54 replies

Jul 23, 2023 6:31 AM in response to Andymo1234

I agree, I go to bed with more than 50% battery and wake up today with 1% left. Bought this 14pro at Best Buy in April, it’s been a not so good experience with battery from day one and has gotten horribly worse. I’m not a phone junkie, a few times a day message ect.


If I go back to Best Buy they said I don’t have Apple care but their TOTAL care from BB. They’ll keep the phone for days to evaluate- so I’m living with the aggravation. Who can leave a phone for that period of time


I don’t know if the Apple Store will touch this if I don’t specifically have the Apple care.

Jul 23, 2023 6:44 AM in response to JinWL

Why don’t you try backing up and restoring?



The links to do this appear below:


Link for how to Back up and Restore: Back up and restore your iPhone, iPad, or iPod touch to your Mac or to iCloud - Apple Support


Link for putting iPhone in DFU Mode: If you can't update or restore your iPhone or iPod touch - Apple Support


Note: The above material is not my work. Any credit should go to Michael Brooks1  who originally posted it here: Jun 27, 2023 8:55 AM in response to Jubalub. 


Please report back wether performing the above process made the battery drainage worse, fixed it, or if you noticed no change at all. 

Jul 23, 2023 10:07 AM in response to H1290

Yes I tried all the usual procedures with battery drain restore phone getting rid of apps tweaking the settings. So I took it to the Apple Store where the Genius Bar performed a test on my phone and found it to be a camera module draining the battery as I slept. They repaired my phone the same day free of charge after all it’s a brand new phone under a year old and shouldn’t be performing the way it did due to their components. Hope that helps

Jul 23, 2023 10:17 AM in response to From Ponce

Your welcome I was experiencing the same issues as you and couldn’t figure out why a top of the range phone couldn’t hold a charge since it has been repaired the battery life is unbelievable so it was an Apple issue and they sorted it promptly and said if it didn’t work they would give me a new phone. They also said it was one in a thousand that had that issue to me that seems quite high with the millions that Apple sell

Jul 24, 2023 3:11 AM in response to From Ponce

Thank you for the information, I’m going to attempt to back it up on my laptop by creating a new iTunes account. I don’t have an iPad system just a regular laptop /windows.


Same issue happened last night, I had it fully charged at 9:30pm and at 5 o’clock this morning it had drained from 100% down to 56% by just sitting there sleeping overnight. (The night before it went from 52% down to 1% by just sleeping overnight.)


There’s definitely a problem here it’s just getting worse so I have an appointment at the Apple store on Wednesday and I hope they can figure out what’s going on with it without having to keep it for very long.

Jul 24, 2023 5:57 AM in response to Andymo1234

Did Genius Bar say whether camera module was causing drain while phone’s in use vs only in sleep mode (overnight)? I’m assuming the former but maybe optimized charging feature is a factor?


From reading various threads on battery drain since 16.5, the 2 root causes appear to be camera module issue & iMessages constantly running in background. Anyone aware of others? I’ve resorted to keeping phone in low battery mode all day (doesn’t help much) & turning phone off at night after it reaches 100% to ensure I have full charge in a.m.


Has anyone come up w/a theory as to why not all iPhones are affected? Could stainless steel vs aluminum frame be a factor? Wouldn’t think so but trying to ID diffs since friends & family w/aluminum 13 pros don’t have battery drain probs while I do & mine is stainless.

Jul 26, 2023 12:13 PM in response to From Ponce

I went for my appointment at most local Apple Store. They said the hardware diagnostic was fine- they reset the phone and basically said it could have been a weird issue with an app that may not have closed. Really nothing showing in the hardware; said to record any future issues and then it will have to be dug into as far as software. I’m satisfied with their service and will go back should it have continuing problems with battery drain


I’ll update if needed. Thanks everyone!

Jul 27, 2023 3:17 AM in response to From Ponce

Update your iOS to 16.6

I feel relieved. It has definitely fixed all the issue with battery draining along with overheating. They should have done it long ago, before my battery capacity being dropped to 95% in just 9 months. All that 9 months would have been saved by sticking to 100% battery capacity just like my wife’s 14 Pro since mine is 14 ProMax and a lot of people who had been facing with battery drain issue has been 14 ProMax.

Jul 31, 2023 6:40 AM in response to Silverskates

Silverskates wrote:

My 13 pro max (1.5 yrs iold) is now down to 88% battery health. Since Apple recommends replacing battery when it’s below 80%, I only have 8% battery life left. The bal due on cost of this iPhone will outlive its health. Not a good look Apple.

On average, a battery will lose capacity at approximately 1% a month. So, you are seeing performance within expected parameters. Batteries are consumables.

Aug 5, 2023 5:08 PM in response to Cmdr-_-Data

I have visited Apple twice regarding the battery issue with my iPhone 14 Pro. The first time, they suggested that the problem might be with my charger and recommended I buy a 20W block. I followed their advice and purchased the new charger, but it didn't improve the battery life.

Feeling frustrated, I went to a different Apple location a few days later, and they thought it could be a software-related problem. They had me perform a hard reset on my phone and set it up as new, hoping it would resolve the issue. However, even after trying this, the battery continues to drain rapidly. In just under 5 minutes, my phone's battery goes down by 3%.

I requested a battery replacement, but Apple refused, claiming that my battery health is still at 100%. Nonetheless, I am convinced that the battery is faulty, especially because I never encountered such problems with any of the 12 iPhones I owned in the past.

I'm unsure of what to do next, as I've exhausted the troubleshooting steps suggested by Apple. I want to find a solution to this battery drain problem as soon as possible.

Aug 6, 2023 12:11 AM in response to Kenflm

Ken I had exact same problem as you if you read my replies from earlier I mentioned the camera module getting replaced as Apple did a test on the phone and found camera module was failing so they repaired it and my phones as good as new again. explain you’ve did all reset stuff etc and got rid of apps and updated to latest iOS before you go. and demand they run a diagnostic test as it’s their problem to sort the components that fail and is their duty to solve the issue. I was doubtful when they mentioned the camera module as I wondered how can that drain my battery but once they repaired the module my battery life Is as good as when it was new hope that helps and get to bottom of it. Cheers mention the camera module as they may not be aware of it or don’t want to be aware of it mines got repaired for free as it was under warranty period but I believe cost to repair on receipt was approx £182

Aug 7, 2023 9:03 AM in response to Kenflm

Same problem. A full reset fixed it. Now my battery is still at 100% after being on overnight.

This worked:

Backup everything to iCloud.

Reset the phone to factory settings EXCEPT for your cell phone provider information referred to as esim. You'll get the option to retain esim.

Restore from iCloud. Restoration of settings is nearly perfect. For example, location sharing stopped working. I had to turn it off then back on.


Apple details the procedure. Follow it carefully or have an expert do it.

How to factory reset your iPhone, iPad, or iPod touch - Apple Support




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iPhone 14 Battery Draining after update

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