iOS 12 draining the battery

Anybody have battery draining issue on iOS 12 ????

Posted on Sep 25, 2018 9:18 PM

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Posted on Nov 5, 2018 6:42 AM

I have an 2 years old iPhone 7 (normal one, not Plus) and with iOS 11 and 12 (even 12.1) the battery drains in 3-4 hrs and need to recharge 3 times a day (or more). That was until last week that I went to a Premium Reseller (in my country we don't have official Apple Stores) and do a battery change. The phone with the new battery last 8 or more hours, and only charges once in a day! So the solution for me was the battery replacement. Also, I was noticing that my battery gets hot for the 2 years that I bought the phone until the replacement. The new one doesn't do that!

73 replies

Oct 10, 2018 4:45 PM in response to Airic499

When not using it, are you sure it’s Auto Locking? Perhaps when you close the cover it’s not auto locking? please check that you have your settings to auto lock after a certain amount if time. Maybe that setting got tweaked with the update and is set NOT to auto lock.


DISPLAY>BRIGHTNESS > AUTOLOCK> 2 min, etc.


if not,


I think you should leave Apple feedback.


heres a link


Feedback - iPad - Apple


And reach out to them for support.


iPad - Official Apple Support


They're very helpful and will schedule a call to you that’s convenient

for you.

Oct 14, 2018 10:00 PM in response to gibbon77

Late to this thread, but iPhone 7 on iOS 12.01. It’s the screen that’s draining my battery. And before everyone screams to turn the brightness down, it’s turned way, way down. The battery app in settings says my battery has 95% life.


When I’m using tracking apps for cycling and hiking, the gps isn’t much of a drain at all, the screen is off and I get excellent battery usage. When I’m using twitter or Safari (my most used apps on the phone) I’m getting about 2 1/2 to 3 hours of battery life. That’s ridiculous! I’m letting the battery drain completely, it’ll die sometime tomorrow, maybe that‘ll trigger a reset, but I’m not hopeful. I’ve never had trouble with iOS upgrades, but this one isn’t good.

Oct 15, 2018 4:18 PM in response to Foracct

The battery draining issue started for me when updated my iPhone 5s with ios 12.0. A few days later ios 12.0.1 became available, so I applied the update. Since then my phone has been working pretty well. It is not draining as badly. I will continue to monitor it. If it continues, I'll have the battery checked.


My recommendation to everyone is to install ios 12.0.1.


Good luck, all.

Oct 17, 2018 7:31 AM in response to Cåts

I updated to iOS 12.0.1 when it became available and my battery drain is horrendous and FAR FAR worse then when iOS 11.


Example - I had roughly 75% battery power, I checked a website for about a minute on a 4G signal and I was down to 35% and then quickly 29%.


This morning I had a fully charged phone, when for a run using Nike Run App and 56 minutes later my phone shut down due to no power (restarted a couple of minutes later with 10% low power mode).


The battery check laughably shows that I have 100% of original capacity etc.


Mine is an iphone 6.

Oct 23, 2018 12:44 PM in response to Foracct

I am having the same problem with my iPhone 6s. My battery indicates it's working at 82% - it is a couple of years old. But previous to the iOS 12 update I could use it all day, maybe switching to low battery mode late in the evening. Now I have to fully charge it by early afternoon - and am below 10% by the time I go to bed. It actually shut down one day last week - after it had been fully charged at noon.


This is not 82% of what I experienced before the upgrade. 82% is more like 30-50% now that I'm running iOS 12.

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iOS 12 draining the battery

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