Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

User profile for user: richmondc
richmondc Author
User level: Level 1
4 points

Upgrade to IOS 16 causing rapid battery draining

I've had an iphone 8 for 2+ years. A few weeks ago I upgraded to IOS 16 and immediately the battery drain was noticeable, so much so that I must charge multiple times a day. Usually a full charge overnight lasts me the entire next day.


After the upgrade, I watch my battery percentage drain not by decrements of 1-2% like I'm used to but huge jumps within minutes.


Example: 98%, few minutes later, 92%, few minutes later, 83%, few minutes later 74%, etc.

The reverse is true too. When I reach 1%, I'll charge for a few minutes and it jumps to 30%.


So the way that the battery is draining doesn't make any sense. I have not changed my behavior in the way I use my iphone. The only difference is upgrading to IOS 16.


iPhone 8, iOS 16

Posted on Dec 24, 2022 6:29 PM

Reply
Question marked as Best reply
User profile for user: TheLittles
TheLittles
User level: Level 10
192,763 points

Posted on Dec 24, 2022 6:39 PM

richmondc Said:

"Upgrade to IOS 16 causing rapid battery draining: [...]So the way that the battery is draining doesn't make any sense. I have not changed my behavior in the way I use my iphone. The only difference is upgrading to IOS 16."

-------


Troubleshooting iPhone Battery Draining:

It may be no more than a bug in the update.


What is the Battery Health?:

When the Battery Health is 80% or lower, Apple recommends that it is time for a new battery. Unfortunately, there is not way to know why, nor when, the Battery Health has decreased.

  1. Go To: Settings
  2. Tap: Battery
  3. Tap: Battery Health
  4. View: Percentage.


See About Getting this Serviced:

You have a One-Year, Out-of-the-Box, Limited-Warranty. So, if less than 80% contact Apple Support, and see if you can get this serviced.

Apple Support Contact Information:

View in context

Similar questions

2 replies
Question marked as Best reply
User profile for user: TheLittles
TheLittles
User level: Level 10
192,763 points

Dec 24, 2022 6:39 PM in response to richmondc

richmondc Said:

"Upgrade to IOS 16 causing rapid battery draining: [...]So the way that the battery is draining doesn't make any sense. I have not changed my behavior in the way I use my iphone. The only difference is upgrading to IOS 16."

-------


Troubleshooting iPhone Battery Draining:

It may be no more than a bug in the update.


What is the Battery Health?:

When the Battery Health is 80% or lower, Apple recommends that it is time for a new battery. Unfortunately, there is not way to know why, nor when, the Battery Health has decreased.

  1. Go To: Settings
  2. Tap: Battery
  3. Tap: Battery Health
  4. View: Percentage.


See About Getting this Serviced:

You have a One-Year, Out-of-the-Box, Limited-Warranty. So, if less than 80% contact Apple Support, and see if you can get this serviced.

Apple Support Contact Information:

Reply
User profile for user: TheLittles
TheLittles
User level: Level 10
192,763 points

Dec 24, 2022 6:39 PM in response to richmondc

richmondc Said:

"Upgrade to IOS 16 causing rapid battery draining"

-------


Troubleshooting iPhone Battery Draining:

Report this to Apple:

Let Apple know what exactly is occurring here. Apple may ont get back to you directly, but the more feedback they receive on this, the more they'll know what issues exist, and what bug fixes to include in updates to come.

Recommend this to Apple:

  1. Go Here: Feedback - iTunes - Apple
  2. Select: "Bug Report" for the "Feedback Type"
  3. Comment: on when you came across this issue, and how you have troubleshot it thus far. Include the URL of this post.
  4. Proceed from there as necessary


II. Troubleshooting iPhone Battery Draining:


A. Battery Drain Info:

The iPhone battery will drain, unless it is plugged in and charging. With lots installed, the charge would be slower. As for how fast it would drain the battery, that would depend on the battery health and the volume (sound) you use.

  1. Go Here: iPhone Battery and Performance - Apple Support
  2. Scroll Down: to "Your battery's maximum capacity"


B.. Troubleshooting the Battery:






Reply

Upgrade to IOS 16 causing rapid battery draining

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.
Learn more Sign up