iPhone battery drain after updating to iOS 16.3

It almost like Apple did not not take the time to optimise IOS 16.3 for older devices..

How do you explain the many millions of iPads that are working just fine with current updates?

Apple users are not bashful. If there were a problem, this forum would be flooded with posts. It's not.

I am experiencing intermittent severe battery drain since updating my iPhone 8+ to iOS 16.3.

I have caught the battery diving down quickly when I see a gear icon spinning next to the WiFi symbol on the top left of my screen.

Otherwise, I get a full day out of the original battery.

Dave in Hamilton, ON.

sibeso257 wrote: "Yes it still has its original battery and capacity is at 99%...."

sibeso ~ 99% is unexpectedly high for an iPhone X original battery...

Did you buy your iPhone X new or used or refurbished?

How many years ago did you buy it?

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I thought it was me but yes unbelievable battery drain. I can see the battery going down by the minute it loses one percentage all the time. Thought it was my phone and battery but it’s still ok. Unbelievable they force us to take an update and take away battery use

The exact same thing has happened to mine. My phone went from charging it every 2 days to having to charge it 3 times a days, as soon as I completed the last update. Did you take it into apple to try to resolve this? I heard apple does this through an update, so you are forced to upgrade your phone. It’s pretty ****.

So just because YOU say so I shouldn’t believe my eyes, my experience, nor anyone else’s? Do better than that dude! New phone here, battery was just fine till the latest upgrade. Don’t bother responding.

I tried everything, including reinstalling other firmware versions. I am not even saying about uninstalling apps, tuning settings, etc.

I am tired of all your obvious pieces of advice.

It would be very easy to rule out this update from causes if... I just could make a rollback to a previous version! But I cannot. Because Apple closes the ability to provide some signing process for previous versions. And that's it. The key problem - with this. We CANNOT rule out the update from the causes.

Nothing in phone settings fixes the issue my phone was fine until the stupid update now it dies within a few hours versus days so no it’s not settings it’s the update and it needs to be fixed my phone is only a year old and has been fine up until now!!!!!!

After the last update about a month or so ago, it Dec 21 2023 now, my iPhone has many problems like the battery is draining within hours. Lots have changed almost like a new phone! When I send pictures or things through texting many are not going through!!

Same issue

Battery drain after updating to 16.3

After updating to ISO 16.3 on Friday January 27, 2023 my battery life has been draining really fast, iPad Pro m1 11 inch . Anyone else having this experience?

Updated 14 Pro last week and watch my battery drain while it’s charging. How careless of Apple but not surprising.

Battery performance is very Bad . My XR New battery health 100% plz help me bro ?

16.3.1, a week after installation, experience: it made the draining even worse than 16.3

Yup , installed 16.3.1 and my 11 month old IPhone 14 Pro with 88 % battery health is dying at 11:00 am - customer service were pleasant but gave me standard “tips”