iOS 12 draining the battery

I upgraded my iphone 7 3 weeks ago, updated to 12.0.1 later. The battery drain went from 0 to 5% per hour when not in use overnight. Turned off all background refresh, turned off most apps, and even put on low battery mode overnight.....no change, still 5% per hour drain. Losing 45% battery charge over a 9 hour span even on low battery mode. Went to Apple Store and they ran diagnostics, found nothing. They wiped phone and put phone back to new configuration with IOS 12.1. Still the same....5% every hour....and no usage shows up on battery usage tracker. The 2 year old battery is operating at 90%, so they said a new battery would not solve the problem. Planned obsolescence or incomplete engineering/development?

Yes, absolutely. And the replies from Apple have not been useful. Before iOS12 the iPad lasted all day, easily. Now it drains about 4 times as fast. The battery did not age overnight; the OS upgrade fundamentally changed something.

I called them this week, ran through the usual brightness, notifications etc (iPad)......after testing I was told my battery is dying, remarkably ever since the IOS update. Point blank I do not believe them, I do believe my battery is not compatible with IOS12 or the 1.1 release, cheers for that.

Apple kindly of a service and new battery.......for £92.44!

Not going to Happen!

Very disgruntled here, I don’t live by Apple and I certainly won’t die by it, no fix, no Apple, Hello Android..... absolutely no skin off my nose.

BTW, not upgrading IPhone 7s to IOS12, easier to sell....then it’s the buyers descision.

iPhone 6S, new battery installed in Nov '18, and battery health is at 100%. Everything was fine before iOS 12 update, done one week ago. Now I can watch the % tick down as I use the phone. Safari for two minutes, down 2%. Facebook, omg each time I go in there I lose 5%. Check the weather, 3% drop. Make a phone call, 5-10% madness. I've turned off background refresh, lowered brightness, reduced motion, etc etc. Nothing seems to help.

Now, I believe a bit of the explanation that major system updates do a bit of indexing, downloading, optimizing, etc. Maybe that's a thing. But there's definitely something else going on. And it sucks to have to troubleshoot this nonsense when everything was tip top days before.

My contribution to the theories is this: iCloud Photos was activated automatically with iOS 12 installation, and suddenly 12,000 photos and videos began to upload to the cloud. If that doesn't drain the battery, well my name isn't robogobo. I have a lower tier iCloud storage plan, and used it to sync documents, never photos. Now it's all filled up and my wife loves the idea, so she wants me to upgrade to the 2TB family plan - nice sell, Apple.

Yes I have the same issue as well. I have an iphone 7 and the battery has got worse since I updated to ios 12. The battery basically drops 2% per 5mins and it's ridiculous! I also realized that the max capacity dropped to 95 from 99 before the update. I can't believe that! Apple really needs to fix this or I've got to replace my battery.

Yeah the battery drain on my iPhone 7 is much worse on iOS 12. Lots of threads with people saying the same too.

Even did a clean install...

Is it better since the reinstall? That’s what they did yesterday to mine. Fingers crossed , she said it works . I couldn’t believe how fast mine was draining, and light use

Yes, with ios 12.01 on iphone SE.

now, batt runs out at arate of 30%/day when before was around 10%/day

I use an iPad Air. I just updated to iOS 12.0.1 two days ago. Now my battery goes from 100% charged to completely dead within an hour. Prior to the update, I had no issues with the battery.

I am having the same issue. My ipad was fully charged last night and this morning it was at 12%. And the home button is hot. I updated my iPhone 6s a couple of days before and the battery life is good. What gives. This ipad was new in April.

iPad Pro 1st Gen 9.7 inch. I only get about 6 hours of standby time post iOS12 update. Standby drains faster than it did watching videos using iOS11. I have tried everything I can find here and at other sites.

• Hard reboot
• Clean re-install (this is ridiculous to suggest, it never fixes anything and is a major pain to do)
• Turned off and updated all apps
• Turned off location services for most everything.
• Tried with WiFi and location services off (Seriously, why is this ever a suggestion? It defeats the entire point of having an iPad and it obviously didn't cause issues before.)
• Checked the battery usage. It always shows some random app that is never even launched, has no location services, etc. as the culprit. Never the same app twice nor one I typically use.
• Turn down the brightness. I did this long ago, any more and it will be unusable, but it doesn't help.
• It has been more than two weeks and the same thing is happening. This isn't initial background maintenance and all the apps have long sense updated.

I used to get 4 days of standby and moderate daily use. Now I have to recharge everyday even if I don't use.

I'll have to wait till I get home to do screen shots. Plus, I plug it in 100% of the time now, otherwise it's dead. So I'll have to let it die again.

Typical usage time is 10-15 minutes. It is never the same App twice that I have noticed. Plus it's usually two to three. Until I did a fresh install it was quite often some old utility I had downloaded years ago and hadn't launched since. And I have checked multiple times to make sure any sort of background refresh or location services are turned off for those, so that isn't it. I don't believe it's even ever been an app I used that day.

Essentially you're saying that you can only unplug and use your iPad , you only get about 14 minutes give or take from a full charge. Yet Standby is 6 hours.

And this all began after iOS12?

After using your iPad over a span of time, what is the average amount of USAGE you would get before it went down to say 10%?

Mine goes about 9-12 hours. Did you ever get 9+ hours off of ONE charge over a span of days ( or one day of using it a lot) before it needed charging?

I have an iPhone 5s and recently applied the latest ios update (Version 12). I am a light user of the phone. Most days it would use less than 50% of battery life. Since upgrading to ios 12, battery life is gone after about 8 hours.

Please help. I have checked settings, but don't see anything unusual.

Thanks...Phillip

Using it doesn't seem to drain anymore than typical. But then again I typically only use it 15-20 minutes a day. I suspect that it is less, but don't use it enough to see. But standby drains the battery faster than say watching videos on a plane used to. And yes prior to iOS12, I could leave it on the nightstand and not charge it for very close to a week, using it 15 to 20 minutes every night. Post iOS12 it drains in ~6 hours even when I never use it.

I have never really used it full time until drain. I can tell you watching 5-6 hours of movies has always dropped it to down around 30-40%. If I don't have my laptop and just grab and respond to e-mails for a work day. I doubt it dropped more than 15-20%.