Why and how do I fix the new issue with battery drain after updating to iOS 11.4? Before updating, might loose as much as 10% overnight on my 6s. After update it now drains completely from 100% over the course of the night to the point that it won’t start until I plug it in and let it charge a bit. iPad air2 drains much more as well, but not to the same extreme.
iPhone 6s, iOS 11.4
my 6s was having the severe battery drain after installing 11.4. Had to charge every 6 hrs with moderate use. blocking my home wifi to the 5g band helped a bunch, was back to near normal. I did a Network Settings reset and afterwards the 5g connection worked much better as far as near normal battery drain. 2 days ago i rejoined the Apple Beta iOS tester group to be able to download and install Public Beta 2 of iOS 11.4.1. Having run that for 1.5 days now, I can say my phone is back to normal. Yesterday i had 19 hours of standby and 3.75 hrs of usage and was still at 45% when i went to bed.
Beta firmware has its potential downfalls, so only choose this if understood. My phone is not a critical or business related device so was able to do this for my situation without fear.
my 6s was having the severe battery drain after installing 11.4. Had to charge every 6 hrs with moderate use. blocking my home wifi to the 5g band helped a bunch, was back to near normal. I did a Network Settings reset and afterwards the 5g connection worked much better as far as near normal battery drain. 2 days ago i rejoined the Apple Beta iOS tester group to be able to download and install Public Beta 2 of iOS 11.4.1. Having run that for 1.5 days now, I can say my phone is back to normal. Yesterday i had 19 hours of standby and 3.75 hrs of usage and was still at 45% when i went to bed.
Beta firmware has its potential downfalls, so only choose this if understood. My phone is not a critical or business related device so was able to do this for my situation without fear.
My iPhone 6S was loosing 30 - 40% overnight on standby after updating to 11.4. I tried virtuall all recommendations over a 4 day period. I finally gave up and rolled back to 11.3.1. Now only drains 0 to 1% overnight. Pretty clear apple needs to step up on this one.
Ive already called Apple Care and all they are good for is telling you to restore to new. I’ve done and have tried just about everything to fix this. Nothing works. If you read most of the posts the majority of them say turn off WiFi. That’s the only thing that has stopped the battery drain for me. If you know something I don’t please by all means share.
I was having the same problem as you after installing 11.4. My battery was draining so fast even when not using so I had to keep it plugged in to charge. I was hesitant to install 11.4.1, but after reading several posts where it helped the battery problem I decided to give it a try. It couldn't be any worse. I am happy to say it fixed my battery drain and my battery is back to normal. I can go all day on a charge and only be down to 70-80% at the end of the night.
Problem appears to be fixed. A hard shutdown was the solution. Thanks for the fine folks at Apple for hanging with me.
Finally fixed this by calibrating my battery. Run the battery completely down til it powers itself off. Charge it completely. Then reboot.
Happy to say that the last update solved the problem. 11.4.1 stopped battery draining on two 6s so far.
All these “fixes” dont work, or only temporarily. I’ve tried every suggestion and then some. The only alleviation to this issue is to set your home WiFi to 2,4 GHz. Or wait for Apple to fix this in an update.
Update: The only thing that works for me and my spouse is to keep the WIFI connection on 2gz. As soon as we switch over to 5gz the battery drains immediately. This is so frustrating, as on 2gz we can't get any pages loaded and some of the apps don't work very well. The update must have had something to do with WIFI connection. If they don't get this fixed we are going to go berserk! I might go out and get some other phone like Samsung or something--but not Apple.
Hi there!
I turned off the WiFi connection. This helped me for now 🙂
When you backup and immediately restore you get exactly what you have. But some configurations are reset. This did the trick in my case, and now the battery is working as expected.
I have somehow fixed this problem, I force shut down my iPhone 7 holding the volume and sleep/wake Button which restarted it and now doesn’t seem to be draining as fast and seems to have returned to normal I assume.. so maybe any of you could try doing this ? Maybe ?
I just got off the phone with Apple support. I can't go half a day without charging, even on low power mode.
Essentially, we are screwed. Apple is not going to allow us to revert to the prior IOS, and they're not going to release an update until fall. I was given a checklist of tasks to perform to preserve battery life, but I had already performed them all, to no avail. The technician explained that "The IOS 11.4 demands a lot more from the iPhone 6 system so the battery will drain far more quickly." He also justified Apples decision to prevent us from reinstalling the prior IOS thusly: "Apple has created a system where we want our customers moving forward and not going a step back."
Hella thanks, buddy. If there was a middle finger emoji, I would be using it right now to Apple. In the meantime, this will have to do: 💩
See this. Apple Beta Software Program
Understand that use of a public beta can result in your device becoming unusable, and I know what you are going to say next, so don't. Fact also, you cannot get any assistance here, or the public forum, since you will have signed an NDA to participate.
There have been posts about some users with iOS 11.4 experiencing battery issues, however no one I know has seen it. There is supposed to be a possible 11.4.1 being prepared to address this. Some users have said that turning off wi-fi, or at least using a 2.4Ghz connection instead of 5Ghz helps. I've not had problems with all of our devices here with my 5Ghz wi-fi, but your mileage may vary.
No, Apple is not here. But you can call AppleCare or make a Genius Bar appointment at your nearest Apple Store and they can test your iPhone. But in the meantime unless there is a very weak WiFi signal that is taxing the phone WiFi by itself will not drain a battery a process or app using WiFi drains it. Which app shows to be using it on your phone?
iOS 11.4 Battery Drain!
