After 12.0.1 update battery drain is high

I have read that article and adjusted settings to maximizer performance. Battery was fine pre-12.0/12.0.1, after installing both of these it lasts about 4 hours. I used to be able to use it all day. Upgrades should upgrade performance, not significantly downgrade it. Very annoying when we are all too busy already to have to contact support for what was supposed to be an upgrade.

I'm having the exact same problem. Was running great with the 12.0 upgrade and now after the 12.0.1 my battery is dropping equally fast. Maybe 4 hrs at best. It's not the settings, it's the update.

I have 2 iPhone SE’s (work and home numbers). Same age. Identical hardware.

One upgraded to 12.0.1. The other at 11...OS.

The 12.0.1 drains. The other doesn’t.

APPLE - FIX IT!!!!!!!

I am having the same problem on my iPhone 6S.

Hi there, khanster!
Thanks for reaching out to the Apple Support Communities! It sounds like you are having an issue with the battery usage on your device and I am happy to help out! Check out this article with information about iPhone Battery and Performance for excellent tips you can try for improving your battery life. Also, check out this link to Contact Support. This will get you in touch with Apple and they will be happy to proceed with further steps.
Take care!

I also did a chat with support today, they had me adjust battery settings and various other things, saying it was my battery getting old. But still same battery drain problem persists that did not exist pre-iOs update. Frustrating. Yes, the battery is a year old but it should be able to handle the new iOs.

I have the same problem. Last week I upgraded to 12.0 and you can watch my battery drain about 2 percent every minute. I have gone through all the settings and hard rebooted the phone and nothing modulates it. I could go all day when running IOS 11. I recently went to IOS 12.1 and still no improvement. What gives Apple?

This is really bad and I don’t understand why this keeps happening! My iPad and iPhone are draining at a rapid rate after 12.01. This needs to be fixed. There are only so many charges for a battery and this is ruining mine quickly.

A YEAR old!? A battery should be working flawlessly at a year old! This is not a way to get repeat business Apple! We have a ton of Apple stock and I think you are jeopardizing your sales when you do this.

I too am having the same problem with battery draining on iPhone 6s after the update. I had the battery replaced in April. I use to be able to go all day on one charge. Now I have to recharge once or twice during the day. There is no way the battery should be draining this fast. At first I thought it was the phone and it was time to upgrade. After reading all of the comments/complaints on this forum I now know it’s the latest 12 update that is causing the problem. I hope apple is planning to fix this problem.

I have the same problem with my 6S since the 12.0.1 update too. Battery drains so quick that I’m now charging 3 times a day. Previous to the update I was getting a full day. I can actually see the battery level draining in huge chunks over very short periods of time (upto 20% a minute) just from browsing the web and with my screen brightness turned right down. Once it reaches 1% it apppears to last a lot longer than you would expect for the last remaining 1%. There is definitely an issue with apples latest update. Come on Apple hold ya hands up and get it sorted.

I also have this problem. I purchased a new battery for my iphone 6s in February 2018. The battery health is at 97%. Ever since I upgraded ios to version 12.0.1 my battery drains very quickly, even when I’m not using it. I made sure my location settings are only on when an app is in use. I close most apps when I’m not using them. I dimmed the screen. I have very few notifications enabled. I disabled background app refresh. I store the phone upside down when not using it, but the battery is still draining at a ridiculous rate. I barely use the phone anymore unless I have to and don’t go anywhere without a charging cable. I just spent over 30 minutes on a chat line with apple support. She verified my battery health is good and recommended to backup and reset my device. That is not a solution! I urge anyone in this situation to make a formal complaint to apple. This is the link to make the complaint. Feedback - iPhone - Apple

Ok, so let me get this straight.

You go online and search “iOS 12.0.1 huge battery drain” because you DON‘T have battery drain to find posts about huge battery drain to write that you don’t have the issue.

I’m amazed.

Please read my post again. Ever since I upgraded ios to version 12.0.1 my battery drains very quickly, even when I’m not using it. My battery health is fine. Apple support verified that. Therefore the only thing that could cause such a drastic change was the ios upgrade. The problem started immediately after the upgrade over a week ago on both my iphone and my ipad. NOT A COINCIDENCE!!!!!

I ended up taking my phone to the Apple store when it wouldn't hold a charge for more than 2 hrs and I was traveling, without ability to plug in constantly. I waited for 2 hrs as a walk-in for the "genius bar" service. After another hour the geniuses determined the battery needed to be replaced which I approved. While attempting to replace the battery during the following hour the geniuses ripped a cable and were thus apparently unable to replace the battery. Geniuses said I needed a new phone, it was now not fixable. Since I have a year old SE, which apparently they have stopped making, this store and hardly any others had it in stock. I had to go to a different store far away to get the new phone and transfer everything over from an iCloud backup that I had to create. Overall this experience took almost 2 days and 3 store visits in person to deal with. So that was a lot of lost work time, on a business trip, where I really needed my phone.

So, in summary the upgrade ruined my battery somehow that was not able to be explained, Apple repair then ruined the entire phone, I now have a new replacement phone that is given to me as an already obsolete device, but (knock on wood) for now at least, works fine with the new iOs 12.0.1. We'll see how long this one lasts.