iOS 11.4 battery drain

As I reported a couple days ago I had the same problem but since I went through every setting and turned off things I don't use, charged my phone to 100 percent and rebooted it a couple times my phone is back to pre 11.4 status. I leave my wifi on all night (5G) It's still at 100 percent in the morning. I have been using my BT headphones for the last couple days and my battery level remains normal under the circumstances. Got me puzzled but I'm glad to be back to normal.

I’ll tell you what upsets me the most. Apples apps have a bad habit of turning themselves back on especially if you try to disable them. Apple why do you do this? Apps shouldn’t by bypassing settings and imo that violates privacy. Too many apps want personal information including precise location. Why would anyone agree to that?

Hi i dOOd. I noticed Airplane Mode does resolve the battery drain problem. However, Airplane Mode turn my iPhone 7 Plus into an idiot phone. As long as I off the airplane mode, the battery starts draining. With 4G function off, battery reduce at 5% per hour. Before iOS 11.4, my 7 Plus last for around 1.5 days (I am not a heavy user).

Even airplane mode didn’t help my 6s. This was my wife’s iPhone and she wasn’t happy at all when I started to try to figure it out. Bought her an iPhone X last week because she was past due for a new phone and I was happy to repurpose the 6s to music alarm clock duty replacing a 5s in that position. That made it easy to sit it on the shelf all day and see what happens with various settings. I restored the 6s to new phone status with iTunes on the PC and deleted every app I could that wasn’t being used. No improvement until installing the iOS 11.4.1 Now two days working fine, showing 97% battery remaining today after a full day on the shelf with airplane mode off and on 5G WiFi. I say my wife was past due for a new phone because the 6s was mine prior to my 7+, but my original 6s was replaced under warranty by Verizon when it stopped connecting to cell service, followed by Apple replacing that one a few months ago when the battery was swollen and couldn’t be replaced. 3rd 6s in other words and it’s only a few months old now, although it shows up in the Apple Store files as being purchased in 2015.

I am using iPhone 7 Plus. The battery health was 93% right after updating to iOS11.4. But now (after 2 weeks) the battery health reported 91%. Was this due to iOS11.4 problem? Any one has the same issue? Do you think this matter? Please share and keep an eye on this too.

My battery life was 100% until I installed 11.4 and now it’s 91%. This imo is a serious problem that Apple needs to address or start handing out free battery replacements. Their silence is infuriating me!

Infuriating me too. I thought the problem was battery drain. Well, I need to charge it more frequent and off some of the functions. But the battery health was dropping!! I bought my iPhone 7 Plus 17 months ago. Battery health only reduced 7% for these 17 months. But over 2 weeks the battery health dropped by 2%. Oh My God!!

My iPhone 5 had way better sound playing music then this iPhone 6s Plus it was way louder and Bluetooth played good, I was very disappointed buying this expensive phone and getting cut short of performance. The only reason I bought this new phone was because Apple refuses too release a newer iPod!
[Edited by Host]

Reminder: the "battery health" feature is still marked beta. I've had a utility called "coconutBattery" for some time which reports on the health of the batteries of MacBooks as well as any iOS device that's plugged in. Right now it reports a health of 85.7% while iOS says 87% on my 7 Plus. No, not a big difference, but there are clearly different ways to report/calculate the value. Also works out to be 0.5% health lost per month since I got the phone. ¯\_(ツ)_/¯

It seems many have seen the issue get better with 11.4.1, so anyone who just found this thread who has the problem, update to 11.4.1 and report back. Just remember that iOS frequently uses more battery for a short time after an update for re-indexing and other black magic. (I know that the original problem with 11.4 is MUCH beyond that.)

And since the Battery Health is still Beta doesn't it make you wonder how it is monitoring the battery condition and is that in fact the cause of the excessive battery drain?

I turned off WIFI and turn on Low Power Mode this morning. I still had excessive battery drain.

I have to use HotSpot for internet and the WIFI has to be switched on to work. Since 11.4 and now on 11.4.1 the internet speed is also GREATLY reduced. There must be something running in the background causing these problems.

CIA, NSA, KGB, Apple? That was a "joke" I HOPE.

I also noticed that the battery drain is not linear and fully charged isn't draining as fast as when it is below 50%.

Anyone else see that?

FIX 1: Problem with Wi-Fi

The problem may be with your Wi-Fi after upgrading to 11.4 some major changes happen on it. To rectify this by Switching from a 5GHz network to a 2.4GHz network. Otherwise, disable Wi-Fi.

FIX 2: Use iOS 11.4

Many people get fixed with this issue when they updated to iOS 11.4.1. But still some not get fixed with this solution.

For more details:

http://www.techmazza.com/ios-11-4-battery-drain-fix/

You may be right for some iPhones. However it doesn't "fix" mine. I have to have WIFI on for HotSpot even though I can't receive any WIFI. I also turned off WIFI today with little noticeable affect.

It is clear there is a problem with 11.4 and 11.4.1 but NO clear fix for every iPhone. Not even a clear band aid.

such as not using certain WiFi’s, making sure all my apps are always turned off, etc, as a solution rather a bandaid for the problem. Whether they are doing it or not apple should take responsibility and fix this problem in a timely manner instead of letting their customers suffer. I recently went out of the country, came back, and had this problem. My mother who was here in the states with the same phone (iPhone 6s) also had the same drained issue. I talked to Verizon they said it was my phone. So I went to Apple then they said it was my battery and the problem was Verizon’s new cell tower firmware, in all fairness it did need to be replaced, however after it only marginally fixed the problem. My mother who rarely uses her phone couldn’t leave her phone on standby for more then 2 hours without almost completely dying. I couldn’t even be on the phone 10 minutes without it almost completely dieing. Went to Apple the said battery was fine on her phone and said she had to many things running, what?! Ok I’m sorry if news, email, WiFi, Bluetooth, txt, call or too many things running in the background for the battery to handle, however, never had this issue before iOS 11.4. So I did some research I heard some people had better luck on iOS 12 beta. Installed it on my phone again only marginally better. At least now my phone won’t die within 2 hours on standby, but when I’m using it still ***** the life out of my battery just as quick as iOS 11.4 and it doesn’t matter if WiFi is on or not or on 5g or 2.4. At this point Apple is garbage, has been since jobs died, to me the only fix is waiting for the new phones to come out and get the pixel 3. Googles where it’s at now. Apple is not transparent every where you go they point the finger at the other guy with no real answers. I’m not going to waste my time making sure everything is in a particular mode to make sure my battery can last 3 hours ?!?! Screw that goodbye Apple. I’m tired of waiting for the next update to solve the last updates problems, apples just a revolving door of problems.

such as not using certain WiFi’s, making sure all my apps are always turned off, etc, as a solution rather a bandaid for the problem. Whether they are doing it or not apple should take responsibility and fix this problem in a timely manner instead of letting their customers suffer. I recently went out of the country, came back, and had this problem. My mother who was here in the states with the same phone (iPhone 6s) also had the same drained issue. I talked to Verizon they said it was my phone. So I went to Apple then they said it was my battery and the problem was Verizon’s new cell tower firmware, in all fairness it did need to be replaced, however after it only marginally fixed the problem. My mother who rarely uses her phone couldn’t leave her phone on standby for more then 2 hours without almost completely dying. I couldn’t even be on the phone 10 minutes without it almost completely dieing. Went to Apple the said battery was fine on her phone and said she had to many things running, what?! Ok I’m sorry if news, email, WiFi, Bluetooth, txt, call or too many things running in the background for the battery to handle, however, never had this issue before iOS 11.4. So I did some research I heard some people had better luck on iOS 12 beta. Installed it on my phone again only marginally better. At least now my phone won’t die within 2 hours on standby, but when I’m using it still ***** the life out of my battery just as quick as iOS 11.4 and it doesn’t matter if WiFi is on or not or on 5g or 2.4. At this point Apple is garbage, has been since jobs died, to me the only fix is waiting for the new phones to come out and get the pixel 3. Googles where it’s at now. Apple is not transparent every where you go they point the finger at the other guy with no real answers. I’m not going to waste my time making sure everything is in a particular mode to make sure my battery can last 3 hours ?!?! Screw that goodbye Apple. I’m tired of waiting for the next update to solve the last updates problems, apples just a revolving door of problems.

such as not using certain WiFi’s, making sure all my apps are always turned off, etc, as a solution rather a bandaid for the problem. Whether they are doing it or not apple should take responsibility and fix this problem in a timely manner instead of letting their customers suffer. I recently went out of the country, came back, and had this problem. My mother who was here in the states with the same phone (iPhone 6s) also had the same drained issue. I talked to Verizon they said it was my phone. So I went to Apple then they said it was my battery and the problem was Verizon’s new cell tower firmware, in all fairness it did need to be replaced, however after it only marginally fixed the problem. My mother who rarely uses her phone couldn’t leave her phone on standby for more then 2 hours without almost completely dying. I couldn’t even be on the phone 10 minutes without it almost completely dieing. Went to Apple the said battery was fine on her phone and said she had to many things running, what?! Ok I’m sorry if news, email, WiFi, Bluetooth, txt, call or too many things running in the background for the battery to handle, however, never had this issue before iOS 11.4. So I did some research I heard some people had better luck on iOS 12 beta. Installed it on my phone again only marginally better. At least now my phone won’t die within 2 hours on standby, but when I’m using it still ***** the life out of my battery just as quick as iOS 11.4 and it doesn’t matter if WiFi is on or not or on 5g or 2.4. At this point Apple is garbage, has been since jobs died, to me the only fix is waiting for the new phones to come out and get the pixel 3. Googles where it’s at now. Apple is not transparent every where you go they point the finger at the other guy with no real answers. I’m not going to waste my time making sure everything is in a particular mode to make sure my battery can last 3 hours ?!?! Screw that goodbye Apple. I’m tired of waiting for the next update to solve the last updates problems, apples just a revolving door of problems.