iOS 11.4 battery drain

It is a real shame that we have had to waste so many hours trying to get a "tool" to work as expected.

I personally do not want to know this much about a phone or the Apple operating system.

Turn off this or that, no WIFI, location services, refresh Apps, refresh as new, change the battery, go to Beta IOS, etc

Apple support saying it is the battery or something else is offensive. I am surprised they haven't said it is due to operator error.

Apple needs to get their stuff together quickly.

Very, Very, Very sad situation and as a stock holder (as many 401k owners are) I am very concerned.

I went from a 100% charge at 4am until noon running apps and games nonstop, mostly heavy gaming and it ran that me charge down to 15%. Before I couldn’t even get a couple of hours on a full charge running apps and games.

Yes this a huge issue. My iPhone 6S+ suddenly started draining in a matter of minutes, and it gets really hot too. I used to get a full day's use out of my phone, and now it dies before I can finish my morning coffee. Apple needs to fix this soon!!!

Background refreshing I always have had off. With Location services is I never had a problem until ios 11.4 update. With it turned off it may get better standby battery life, however, when using the device makes no difference in battery life. Another thing about having this turned off is I use location services for some apps so having it off, again, puts me at a inconvenience which I think is unacceptable to have a smart phone that can’t be a true smart phone, especially, when paying a premium price tag. Without a doubt the biggest problem with having the location services turned off is in the event your phone is lost or stolen you will not be able to locate it using the “find my iPhone app.” At this point I might as well have a flip phone.

I'm having this problem as well. I called support and they told me that I need to wipe my phone and restore. I tried that and it did not help. They now have told me that I should get the $29 battery replacement and that will fix the problem. It is frustrating that this problem coincided with the 11.4 release.

I've been involved in this thread for a good week or so now, and here's some advice to anyone new to it:

DON'T contact Apple support. They're no help on this issue at all. Some techs admit the problem and some don't. NONE of them can fix it.

DON'T replace your battery unless your Battery Health function indicates that it's no longer able to hold at least 80% of it's original capacity - regardless of what an Apple tech might tell you.

There are several things that others in this thread have tried with some success.

1. Disable the 'Allow Calls on Other Devices' function.

2. Disable the 'Background App Refresh' function.

3. Disable the 'Location Services' function.

4. Try changing your wifi settings. There have been all sorts of advice on people trying various things with their wifi with some success.

5. If you feel brave enough, upgrade your iOS from 11.4 to the Beta 12.0 version. WARNING: using a Beta version of software is somewhat risky. If you do go this route, make sure you back up your phone completely so that if you encounter problems with the Beta, you can always restore your phone to the previous settings. Personally, I've not had a single issue on either of our phones after installing Beta 12.0, but that's not to say you will have the same story.

I've solved the problem for both of our phones - an SE and a 6s. I installed Beta 12.0 and disabled the Background App Refresh function. Everything else I left as is, and both of our phones are operating perfectly fine now. Our batteries last as long as they did before Apple inflicted this problem on it's customers.

However, from all that I've read in here over the past week, it seems that this is a real quirky problem, and no single solution works for everybody. Some people have had complete success coming up with ideas other than my own. My advice is to take the time and skim through this thread, picking out ideas that have worked for others and trying them.

The ultimate fix will be for Apple to acknowledge the problem and after apologizing to their customers, release a new iOS version that actually works.

I posted in this thread a month ago. Since then I've tried all of the suggestions posted here other than trying the 12.0 beta. Most of the things I tried helped for a day or two but it keeps going back to the battery drain. I have a 6s, the battery is relatively new (replaced a few months ago) and the capacity is 93%.

Here's my experience...this is absolutely a wifi issue but it's not limited to 5.0 vs 2.4 and it's not constant. I have a modem and wifi extender at home. Both are 2.4. The battery drain happens to me only when I've been home most of the time (I work out of my house) and I think (but not positive) it happens only when I'm connected to the wifi extender. But it doesn't happen all the time. Some days I'll charge overnight, have 100% at 8:00 am and drop to maybe 70% by 5:00 pm with light usage. Other days I'll charge overnight, have 100% at 8:00 am and 30% by noon with very little usage.

I can't turn off the extender because we have other devices that require it. Tomorrow I'm going to try removing the extender from my wifi options on my phone and watch that for a few days.

The point of my post is, restoring to new, shutting off background refresh, other devices, etc...none of those things mattered for me. For me it appears to be only about wifi. If I find out in a few days that it only happens with my extender I will post back here AND contact Apple support. Good luck everyone!

I installed/updated to iOS 11.4.1 at 3:15 today. Then I charged my phone to 100% and have kept wi-fi on for the past 6 hours. Battery has only gone down 2% - still have 98% - I’m hoping it’s fixed. Fingers crossed.

Yes, well like I said, this problem doesn't seem to have any one, single solution. I tried all of the wifi solutions presented and none of them worked for me. Installing the Beta 12.0 and disabling background app refresh was what fixed it for me. This must be the most quirky bug out there.

My iPhone 8 was getting ~11% per hour battery drain on iOS 11.4 when simply on standby and the screen off - and yes, disabling Wi-Fi did slow it down, but was still a higher draw than earlier versions, and any time I used the phone with screen on, the battery did die way faster than prior regardless of WiFi being on or not. I tried switching off, restoring, setting up, as a new phone - nothing worked.

Until iOS 11.4.1.

Touch wood, after having installed this, the phone is now back to a very slow and steady power draw with Wi-Fi on, perhaps even a bit better than iOS 11.3 if my mind is not playing tricks. Less than 24 hours, but so far, a welcome correction to a problem that should not have occurred in the first place.

Just bought my 6s three days ago and upgraded to IOS 11.4 a few days ago. Big mistake - my fully charged batt was down to 50% this morning even though I disabled backgound app refresh and some unecessary location services, per some suggestions posted here. I’ll try disabling ALL location services tonight and see how that goes. That means no navigation and other useful services, which is a drag!

On iPhone 7 Plus updated to 11.4.1 last night and still have a massive battery drain. 2-3hours it goes from 100% to 20% then shuts down if I use it.

It worked perfectly prior to 11.4 now seems my battery is gone

The agreement covers mostly on new features and functions. To be honest you can go on any egghead website and they already have the rundown. But people should have the right to know if bug fixes are being implemented. The battery drain issue is a serious one because is wrecking the battery life especially on new batteries. I was told to replace mine for $30.00. Why would I put a new battery in to replace a new battery and have it wrecked by the same bug? Apple has yet to officially address that problem.

Thanks for mentioning WIFI - I think you’re onto something. My batt life us much better not logged in, and I’ll test it later tonight - charge the batt and lturn wifi off for the night. It’s funny how my 4 year old 5c barely drained overnight unlike the brand new 6s I bought three days ago. Must have been due to Apple’s generous performance throttling of my old phone, I guess.

Apple ended support for the I phone 5 which I bought me an iPhone 6s Plus. My iPhone 5 can go almost 3 days on a full charge including using the internet. My iPhone 6? Barely a day. It’s bad enough Apple lied about throttling older phones but what’s worse they are staying hushed about this battery drain issue.