iOS 16.1 Battery Drain

Updated this morning (iPhone 14 pro), experiencing the same. My phone can also sit on the charger for an hour and will be the same battery life as before. If I restart my phone, it’ll update to the correct battery life.

It is worse for me on my 14 Pro

The phone gets heated and battery drains too fast (faster than usual). Never exeprienced this on the previous iOS.

I’m personally getting sick of Apple for being this bad with bugs. I never experienced these amount of bugs on any other phone before.

I bought my 14 Pro for 1450€

My iPhone 13 Pro has lost 45% of its battery in two hours this morning, still excessive battery drain due to Home & Lock Screen using between 50-64% of my battery. Here's what I've done to try to remedy this (nothing has helped):

• Disabled all lock screen widgets
• Disabled all home screen widgets
• Turned off all notifications
• Turned off all background app refresh
• Wiped the iPhone and reinstalled from iCloud backup
• Removed all lock screens and created one with background color and no widgets
• Turned off all focus modes

I've now spent hours trying to remedy this problem, since Apple's only response was "wipe the iPhone and reload from your iCloud backup", which I had a feeling wouldn't do a **** thing except waste a few hours. I now have a phone that has most of the useful features disabled, and which gives me 4-5 hours of battery use, even when not using it. This is clearly unsustainable. I know that not everyone is having this problem, but it seems that the Home & Lock Screen battery drain issue has been around for years (Google it!) so you'd think Apple would know what was causing it by now.

I had this problem a few ago, the iPhone 14 Pro was constantly warm and the battery drained really fast. "Home & Lock Screen" was always on the top of the battery usage. So I called the Apple Support and they told me that I have to totally reset my iPhone (Recovery Mode) via my MacBook.

Before I had to Backup my iPhone to my MacBook via Finder (Spoiler, I never used this backup again).

How to back up your iPhone, iPad, and iPod touch with your Mac - Apple Support

After that I restored my iPhone via Recovery Mode

If you can't update or restore your iPhone or iPod touch - Apple Support

This took a while. After that I activated my iPhone and did NOT restore it from a backup. Because I want to be sure that it isn't a hardware problem. Since this day everything works fine. I have enabled every iCloud sync again. Everything without any problem. 90k Photos are back on my phone and my whole HealthKit Database is back.

I know setting up an iPhone from scratch is a pain, but it's better than a battery that least only half a day.

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.

My iPhone 13 Pro has lost 45% of its battery in two hours this morning, still excessive battery drain due to Home & Lock Screen using between 50-64% of my battery. Here's what I've done to try to remedy this (nothing has helped):

• Disabled all lock screen widgets
• Disabled all home screen widgets
• Turned off all notifications
• Turned off all background app refresh
• Wiped the iPhone and reinstalled from iCloud backup
• Removed all lock screens and created one with background color and no widgets
• Turned off all focus modes

I've now spent hours trying to remedy this problem, since Apple's only response was "wipe the iPhone and reload from your iCloud backup", which I had a feeling wouldn't do a **** thing except waste a few hours. I now have a phone that has most of the useful features disabled, and which gives me 4-5 hours of battery use, even when not using it. This is clearly unsustainable. I know that not everyone is having this problem, but it seems that the Home & Lock Screen battery drain issue has been around for years (Google it!) so you'd think Apple would know what was causing it by now.

I had this problem for a couple of weeks and tried *lots* of things to fix it. My battery drain was due to extraordinarily high battery usage by Home & Lock Screen, between 50-65% of all battery usage was due to this. One of the following resolved it for me (I say "one of" because I tried two things in succession):

• I used DFU mode to wipe the phone and reset to factory specs. Once I got that set up and working I then restored from my iCloud backup. This didn't immediately resolve the issue, so then I,
• Removed the Photos widget from my home screen.

After a couple of days my iPhone was back to normal battery usage and I added the photos widget back and it remained good.

This was all very frustrating, but I never for one second thought of switching to another platform. I've heard enough support nightmare stories to know that the Android world is no better, and often substantially worse. When you have over a billion devices all over the world, running an endless number of hardware/OS/software combinations bugs will happen and it *will* be difficult to troubleshoot them all. But in my experience they always do get fixed eventually.

I am experiencing the same behaviour on my iPhone 13 Pro. Usually the battery is great. I have low power mode enabled for most of the day so I can get about 3 days on one charge. I am not a heavy video or video game user. But then suddenly overnight I loose about 50% of charge and most of it is consumed by Siri. This happened to me twice. To get out of this, I had to completely disable SIri and reboot my iPhone twice after disabling Siri; yes twice. If you rebbot only once, battery drain continues even after Siri is disabled completely. Also, it does not help to only disable some Siri features. Only after completly turning Siri OFF (and 2 reboots) battery drain stopped.

This is what I ended up doing to get my battery under control and still use the iPhone for my important functions such as Texting (iMessage), using MS Teams (for work), Banking app push notifs. etc.

1.     Turn OFF WIFI globally, completely. (Not from the control center)

2.     Turn ON the Cellular Data (Mobile Data in EU)

3.     Then go to Cellular (Mobile in EU) Data settings (scroll down) and turn off data for each individual app only leaving those mentioned above.

This way you eliminate the battery-draining network traffic that is probably caused by some apps. You might want to turn on your essential app's data one by one and see if the battery starts draining as you turn some app's data ON.

Now my phone consumes very little battery (second screenshot) and I can use my phone until the official fix comes out; hopefully soon. Of course for this to work, you have to have a solid data plan.

After some further testing in my case it looks like the Contacts of the Gmail account and iCloud Contacts sync are going in some strange loop, something is synced back and forth constantly. One indicator was the frequent loading circle in upper left corner while using the Contacts (Apple native app or phone).

Just purchased a new XS Max and the difference since I upgraded is unreal! Battery diminishes when sat face down on a table! The difference is clear in the pics below.

I even purchased reiboot and used that and still drains like mad! Getting a bit over it to be honest! My battery has dropped 3% whilst typing and placing the pics on this message!

This is getting ridiculous. This morning my phone lost 8% of its battery in less than 15 minutes of use. With light use it was at 28% by one o’clock in the afternoon and the phone essentially needs to be always in Low Power Mode. Home & Lock Screen is using 62% of battery. This is on a phone with notifications disabled, no Home Screen widgets, keyboard haptics turned off, and recently wiped and reinstalled. I just know that if I go to the Genius Bar they’ll just scratch their heads and tell me that nothing is wrong. Apple needs to figure this one out.

Yes, my iPhone 14 pro max is draining like crazy after 16.1.2

Siri drains almost 40% over night (without any use) in just about 8 hours.

So for now I’m disabling Siri completely.

Apple needs to fix this because all in all it kills/destroying battery health over a shorter time.

Still on 100% battery health but not for long I guess if Apple don’t come with a fix soon…

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??

Yeah, really noticed my 13 pro max battery life draining heavily, especially when playing music in the background on Apple Music. Not sure what that's about or how to fix it. I've restarted a couple times but don't know what to do moving forward.