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Battery draining fast on iPhone 15 Pro

Second day with the phone and had to charge it twice today and it’s back down to 19% after normal use…No apps running on background or extended use, battery health at 100% 🤷🏻‍♂️🤦🏻‍♂️


[Re-Titled by Moderator]

Posted on Oct 1, 2023 3:01 PM

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Posted on Dec 4, 2023 6:03 AM

I just got my iphone 15 pro max on Friday. Today is Monday and the battery drains like crazy. All I have done today is make a 10 min phone call, and use Instagram for 15 mins and my battery went from 80 to 68. This has never happened with any of my older iphones

325 replies

Mar 17, 2024 4:01 PM in response to drdavescientist

drdavescientist wrote:

Actually, that’s not correct, there’s three choices under “charging optimization”
” optimized battery charging”
” 80% limit”
” none”

What is stated is correct.


Optimized Battery Charging uses intelligence based on your usage patterns to determine when to charge past 80%.


The 80% Limit is exactly that. Every so often (about every two weeks for me), it will charge to 100% in order to maintain calibration.


“With iOS 13 and later, Optimized Battery Charging is designed to reduce the wear on your battery and improve its lifespan by reducing the time your iPhone spends fully charged. When the feature is enabled, your iPhone will delay charging past 80% in certain situations.”


About Optimized Battery Charging on your iPhone - Apple Support


Jan 14, 2024 7:13 AM in response to ThyTheGreat

Spoke to an advisor and did what she suggested and it’s helped immensely.

  • make sure software is updated
  • enable auto lock and auto brightness ( turned on in settings)
  • low power mode on
  • sometimes it can take weeks to restore a new phone from a back up, and mine hadn’t finished so that may have been part of it

I also turned off the “always on” that someone in an earlier thread suggested.


May 13, 2024 6:56 AM in response to ThyTheGreat

FIXED (for me): Hi Everyone from Italy! i had a costant battery drain in may new iphone 15 pro max from the first day of use. Always had iphone and never experinced somthing like that.

I tried in this order:

  • network reset
  • settings reset
  • soft reset of the phone

It slightly got better but nothing big.

  • Theeeen i canceled tiktok-insta-facebook installed again after an hour:

Voillà the phone is now WORKING LIKE IT SHOULD!!! no more incomprehensible battery drain!

  • (in addiction i also cancelled some small apps and update all, but i don't think those were the problem)


I had an iphone 13 pro max before so i know how it should behave.


MY ADVISE from my experience: delete and re-install all the app you have, from the haviest to the small ones and check the result!!!


I hope this can help someone <3, i was about to go crazy!

Best regards

May 13, 2024 7:17 AM in response to ThyTheGreat

FIXED (for me): Hi Everyone from Italy! i had a costant battery drain in may new iphone 15 pro max from the first day of use. Always had iphones and never experinced something like that.

I tried in this order (after all the classic usual useless advice):

  • network reset
  • settings reset
  • soft reset of the phone

It slightly got better but nothing big.

  • Theeeen i canceled tiktok-instagram-facebook and installed them again after an hour:

Voillà the phone is now WORKING LIKE IT SHOULD!!! no more incomprehensible battery drain!

  • (in addiction i also cancelled some small apps and update all, but i don't think those were the problem)


I had an iphone 13 pro max before so i know how it should behave.


MY ADVISE from my experience: DELETE and RE-INSTALL all the app you have in the iphone, from the haviest to the small ones and check the result!

I hope this can help someone <3, i was about to go crazy!

Best regards

Battery draining fast on iPhone 15 Pro

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