iPhone Battery Drain iOS 16.0.3

Have your phone examined; yours sounds like a digitizer issue.

Genius Bar Reservation and Apple Support Options - Apple

Use Low Power Mode to save battery life on your iPhone or iPad - Apple Support

Expect battery usage to increase for the first 24 - 48 hours after installing an update as your phone needs to rebuild several internal databases.

Which apps does Battery Settings show as using the most power?

iPhone 13 Pro Max. Same issue, from 16.0.2 to 16.0.3. My battery life was around 24 or 25 hours after update it turns around 8 hours and gets warm sometimes. I did a battery calibration, the battery life changed to 12 hours aprox but still gets warm. I’m trying to keep all apps closed. But definitely, there is an issue.

That has nothing to do with iOS 16 except it is likely a better calculation of your Battery Health.

However, if your phone is within its one year Apple warranty, Apple will replace the battery at no charge to you if your health is now below 80%.

iPhone Battery and Performance - Apple Support

Please go through the following links.

• iPhone Battery and Performance - Apple Support (IN)
• Batteries - Maximising Performance - Apple (IN)

Seems to primarily be an issue with facebook reels

Ios 16 update ruined the battey life for iphone 11 nad older devices. Like most of the phones facing the same. And all the formalities mentioned in apple support wont help at all untill apple make some optimization in os itself.if u ask anyone in forum they will only siggest u the support page by apple

There is something very messed with 16.0.3. I can see the percentage go down even when just sitting idle. Listened to Spotify for 30 minutes (twice) and each time saw a 10% drop in battery life on a brand new i14PM.

Was down to 40-50% every day I've owned it with 16.0.0-16.0.2

I updated last Friday, October 14th, 2022. Was running 16.0.2 before and updated to 16.0.3 also on an iPhone 13 Pro Max. Same problem. Always try to keep only the most used applications open but now even when most of them are closed the battery drains very fast and the phone is warm. It has almost been 48 hours since the update so I do not believe the phone is rebuilding databases still. It seems to be a problem associated with 16.0.3 and not a hardware issue.

when the new software update comes out because ios16.0.3 drains my battery in the previous iOS nothing like that happened at night if I do anything with everything off it's using 10% battery crazy on my iPhone 13 Pro Max

This is happening to me too.

On top of rapid battery drain, my phone is significantly warmer despite being idle. So hot in fact that the phone restricted charging because it was too hot. It’s high 60° and I’ve been indoors so not hot because of environment conditions.

Using a brand new iPhone 14 Pro running iOS 16.0.3. This only began after updating yesterday. Unsure what minor version I was running but I’ve been on iOS 16 for a few weeks now.

I am facing major battery issues in i-phone 14 pro right after updating IOS to 16.0.3. I immediately reported it to apple customer care on call and via chats shared screen shots. It suddenly drops down to 8-10 %. It is quite annoying. Furthermore the issues are, animation to detect my face is slow and sometimes wifi keeps on disconnecting and reconnecting where-as my other apple products fairly uses wifi without any such issue. I feel IOS 16.0.3 literally slowed down i-phone 14 pro and apple should release another update as soon as possible to fix these issues.