iOS 11.4 battery drain

I had my battery charged at 100% last night. Put it on the nightstand and this morning it was dead. I did the upgrade on May 29 so in a couple of days it will be a month and it is draining just as fast today as it did when I first upgraded.

We have the same case with both SE in our company.

Deactivating of Bluetooth, WIFI, cellular, tried Network Reset and Phone Reset - nothing works. Both phones run empty without usage over night. Both devices are only 2 months old and have battery health of 100%.

jtconte wrote:

Same issue here. My 6s is 2 years old and now drains completely in less than a day with very little usage. Can't be good for the battery. If the battery was good, it won't be for long.

Not sure it's worth getting Apple to replace the battery for $29 if the iOS is just going to drain it anyway.

Your problem is not iOS 11.4. Your problem is an old battery. If your battery is two years old, it's quite likely it needs to be replaced. A battery that old is not going to hold a charge the way a newer one would.

Using cellular data makes the battery drain less. Not a solution but I tested my phone which just died four times from a drained battery with a strong WIFI.

Using cellular it’s just like before iOS 11.4.

TERRIBLE work around but just an FYI!?

I wish that was an option for me and my SE. have very limited data to keep the monthly phone bill down unfortunately. And it can’t help my iPad mini 4, that’s WiFi only and yes, has the battery drain post update

As a test, use cellular only.

I have TWO 6s, one old one less than a year and iOS 11.4 is a WiFi problem affecting the battery. Go ahead. Try it.

But a temporary work around. Try that. Just for now.

Hello Yatika, when you sign to Apple,look for specified device click on IPhone,IPad,etc. Then look for the Tech device and battery update. As you click, it’ll walk you through clear steps on Apples battery and updates. I wish you luck.

The only thing that has helped me extend the battery life is to turn off WiFi. Terrible solution and this is a bug that Apple needs to fix as soon as possible but at least it's a temporary work around. Definitely not ideal if you don't have an unlimited data plan 😟

The reason for turning off Bluetooth, WiFi or putting the phone into Airplane mode is merely a way to stop the battery from going flat overnight. It is not a fix and does not identify the cause of your problems!

You say that you don't have a car or use Bluetooth. Do you use any iCloud services like backup, syncing contacts, calendars? Do you use the phone as your Hotspot for the wifi iPad Mini? Until you answer these types of questions, no-one can help you get to the bottom of the problem.

It seems that the iPhone 6 has it's own issues that compound this issue.

Also, criticizing other users that are publishing the results of their own testing that doesn't agree with your set of problems does not help anyone!

We all share a common goal and that is to get Apple to fix this problem!

Hi. I was in no way trying to be critical, it was a question. I really wish it was a concrete reason! Then again, if it was? Something like Bluetooth? That might help narrow down where the update problem is.

i am very sorry if it seen as criticism.

i do not use my phone as a hotspot. Honestly, I don’t know how. I have phone set to do iCloud backups only when the phone is off, locked and charging. I do try to do a physical backup to iTunes connected to my computer every couple of months. calendar isn’t synched. I don’t use the phone as an alarm. I don’t use it as a music player and I own nothing Bluetooth right now. And that w just your garden variety Bluetooth earpiece so I could talk and walk if my hands were full. But that bit the dust and haven’t replaced it.

Honestly there are days when the phone gets no use at all!

Could you go to settings, battery and look at your battery usage?

The cause of your battery drain can be listed here!

In my case, I am having some dramas that are not Apple's problem. My battery usage states that over the last 24hrs my phone has been busy trying to look for a stronger cell tower signal. The towers in my area are being upgraded so my phone is reporting 75% of the battery usage is "Low Signal".

My other direct causes has been everything to do with CarPlay and hands free stuff where the phone connects but will not stop searching for the car and flattens the battery. This is Apple's problem as I have other Bluetooth headphones, speakers etc and these do not cause issues.

Let me know what you find!

We are finding work-arounds but Apple does not help at all solving the issue.

This is not the right way.

I've also noticed that once draining my phone goes hot. This process is fast and is not reflected in battery usage report that you can find in settings. Since the update my battery health is also deteriarating. First hit of it just after the update was 4% (from 92 to 88%) and not it goes down 1% a week on average (it is already at 84% level).

So, by the end of this year I surely will need to oreder a battery replacement. This should be at cost of Apple not ours.

I've now had exactly the same experience. iPad was emptying its battery overnight, now it's completely back to normal, loses 1-2% overnight. I didn't change anything, was simply waiting for a fix. I agree with the background indexing theory, which would explain why everybody is having different experiences. Some simply have more to index than others. I hope this ends up being the result for everybody. In the meantime, what an astounding case of communication failure from Apple over this mess. Silence and denial - it's like an MBA case study for how not to do business. There is an interesting level of negativity building towards this brand that many once loved.

It will be one month tomorrow since I did the upgrade and battery still draining fast no matter what I or the Apple Store tries. I have an iPhone6. I went back to Apple again yesterday to see if there isn't something else they can try and he said other than sell me an iPhone8 all I can do is bear with it until Apple sends out a patch (if the do, his words) or wait for the upgrade to os12. If 12 causes the problems that 11.4 made then I don't want the upgrade.

I had this same issue. I went to the Apple store and they ran diagnostics. This is an Apple iPhone 6s Plus.

They recommended I restore and set up as a new phone so none of the older settings makes it way there.

Low and behold it worked! The phone no longer warms up - I am on 8 hours of mixed standby / use and I have 84% left.