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iOS 11.4 battery drain

My iPhone 6 was working perfectly fine until I updated to iOS 11.4 and ever since I did that my battery is draining rapidly even without me using it at all. I used to go a full day without charging it now it may last half a day. I am just wondering if something got turned on with this new update that I have to turn off to save battery life. It is just weird I have not done anything other than update the iOS and now this happening. Any help would be greatly appreciated.

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Posted on Jun 1, 2018 6:33 AM

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Posted on Jun 2, 2018 2:31 PM

I have the same issue.

When I look at my battery performance, it shows that the personal hotspot on my phone is being used, though I have never turned it on. I have to keep charging my iPhone every 2-3 hours now.

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802 replies

Jun 2, 2018 10:28 AM in response to Zide99

Greetings,


I see that the battery life of your iPhone 6 seems to have shortened, and I'm happy to help.


iPhone Battery and Performance -- This article provides information about the battery, how to maximize the performance, and introduces Battery Health (Beta) which can also help.


iPhone Service Pricing -- If your battery needs to be replaced, this is the pricing for the United States. Just scroll down to the heading "Battery service - United States". If you're in a different region/country, scroll to the bottom of this article, click the country listed in the lower-right corner, then select yours.


Take care!

Jun 12, 2018 8:18 AM in response to OxnoxO

If you actually bother to read the manual (I know, no one has for umpteen years) the Control Center disconnects from the current network, but leaves Wi-Fi on. This is actually a very valuable feature. It will connect to other networks, but not the one it had been disconnected from until 5 AM the next day, or until you go out of range of this network, then return to it. But have no fear; there are still FOUR ways to turn off Wi-Fi and have it stay off:


  • Settings/Wi-Fi: OFF
  • "Say "Hey Siri, turn off Wi-Fi"
  • Hold the HOME button to wake up Siri and say "Turn off Wi-Fi"
  • Force-press the HOME button and tap "Wi-Fi"


It has worked this way for almost a year; I'm surprised so many people don't know about this feature. For more information, see: https://support.apple.com/en-us/HT208086

Jun 3, 2018 2:11 PM in response to Zide99

I have the same issue with my 6S+. It was fine before the update. And my battery health is at 90% yet I just watched my battery % drop from 50% to 20% in a matter of minutes while not using it. I’ve looked through all the settings and can’t see anything I’ve previously had turned off turn back on with this new update in regards to saving battery life. Whatever it is that’s causing it they need to fix it ASAP

Jun 3, 2018 11:12 PM in response to sterling r

My iphone 6s has the same issue after updated to ios 11.4. I charged it up to 100%, rebooted it then let it stand by for 4 hours, the battery indicator dropped to 40%. It has been 3 days since I updated to ios 11.4 and this issue happened every day. Also it seems the battery drained fast when my iphone connected to wifi. When there was no wifi connection, the battery draining seems slower or normal.

Jun 4, 2018 4:26 AM in response to Zide99

Iphone 6s (BH: 95%) and Ipad Mini 4 (BH:96%)

Both units show since days the same annoying battery drain (60% overnight). Also a clean install with 11.4 on the phone didn't improve the situation. Yesterday I downgraded to 11.3.1 on the iPhone and everything's back to normal again. Overnight (~ 7h) the energy loss was only 1%. I'll keep the Ipad running for 2 more days to verify the behaviour.

Jun 4, 2018 5:51 AM in response to Zide99

Hi,


same here.

iPhone 6s, being able to run a full day on a 100% charge.

After 11.4 update, on a 100% charge phone is empty, even during the night when not used actively!


Have restarted my phone several times, gracefully and hard, without any result.

Again, on 11.3.1 all was fine!

Battery condition is 83%, which looks ok.


Location services have been drilled down to the bare minimum, similar to background sync.

In my case Mail has used 53% of the battery in the last 24 hours.

I tried to find the push interval setting, but that seems to have disappeared?


I hope this is a bug which can be fixed with 11.4.1...


Erwin

Jun 23, 2018 6:24 PM in response to DMP84

User uploaded fileUser uploaded fileUser uploaded filehi all pl see the photos i hv uploaded my iphone SE FROM 9.30 pm to 6.30 Am in stUser uploaded fileandby mode . the battery drained from 99 percent to 75 percent!!!! the other 2 photos from my iphone 5 with a GradeA generic battery in standby mode for the same timings . it drained from 62% to only 59%!!!! Sleeping ios 11.4. engineers will they ever wake up .

Jul 5, 2018 11:40 AM in response to DanNewnan

I totally agree that trying Beta 12.0 is risky, but it was one I was willing to take and I wouldn't recommend it to anyone who is uncomfortable with it. I was having to recharge my iPhone 6s three times a day, and had to leave it plugged in all night or wake up to a stone cold dead device. My wife's SE was having similar issues, but when I described them to the Apple Store tech he thought her issue might be a bad battery, so we're taking it in today to see what's up with that.


Since fully charging my 6s last night and leaving it unplugged all night, I've dropped from 100% to 77% in just a little over 12 hours. So it looks like I'm back to normal. So far I haven't encountered a single issue with Beta 12.0 knock on wood.


User uploaded file

iOS 11.4 battery drain

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