iOS 16.1 Battery Drain

Have anyone started to face battery drain in iPhone 13 after iOS 16.1 update..?

i wasnt facing a battery issue in ios 16.0.3 but today onwards after new update i have experiencing a drastic battery drain


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Posted on Oct 25, 2022 2:29 AM

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Posted on Nov 4, 2022 4:05 AM

This seems to have solved my problems:

https://www.droidwin.com/iphone-calendar-app-excessive-battery-drain-fix/


Numerous users have voiced their concern that the Calendar app is hogging an astronomical amount of battery from their devices. Users have reported that if they check the Battery stats for the past 24 hours, then the Calendar app is sitting right there at the top, running for over 15 hours in the background and around 83 hours in the last 7 days.

Correspondingly, it seems to hog around 40% of the battery which is definitely not what one would expect from an app belonging to this domain. What makes the matter worse is the fact that Calendar isn’t even present under background app refresh, so you cannot disable its background activity as well. With that said, there does exist a nifty workaround that shall help you resolve this bug. So without further ado, let’s check it out.


Nearly all the users who were getting bugged with this issue had one thing in common- they were all using the Apple Watch. Upon further debugging the issue, it turned out the issue is the watchOS. So here’s what you need to do to rectify this bug once and for all.

  1. To begin with, long press the Calendar app and select Re-Arrange App.
  2. After that, tap on the minus icon to remove this app from your device.
  3. Now unpair your Apple Watch from your device.
  4. Then reinstall the Calendar app on your iPhone from the App Store.
  5. Finally, pair your Apple Watch with your device and the issue should be rectified.

That’s it. These were the steps to fix the Calendar app excessive battery drain issue on your iPhone. If you have any queries concerning the aforementioned steps, do let us know in the comments. We will get back to you with a solution at the earliest.

209 replies

Nov 15, 2022 1:18 PM in response to HizerMuhammad

Since iOS 16 the iPhone smartphone turned into a dumbphone!

I’m so frustrated!!!

iPhone 12 Pro and iPhone 14 draining battery just by sitting on the desk with no apps running. It gets hot that you almost can boil water on it.

Charging 2 or three times a day. Is that the new normal by turning off all features just to have the iPhone to make calls? Than I can switch to my old Nokia.

I use apple products almost 20 years, but this iOS 16 takes the cake.

Dec 4, 2022 3:03 AM in response to HizerMuhammad

WOW Apple. You don't like the truth??? Why then you deleted my last post?

In other words... Your iOS16 is still super duper amazingly draining my iphone battery and my NERVS!!!!!

When you don't like bad works, THAN GET YOUR WORKD DONE!!!!!!!!!!!!

It's just embarrassing.


Plugged it off the charger. After 3 hours of not using the phone: 30% battery drain?!?! What else do you need, my beloved favourite company of all times?

btw... Youtube and bad signal??


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iOS 16.1 Battery Drain

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