iOS 11.4 - the battery killer

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zappaDPJ

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I know this been a thing for some while but for the first time I've noticed an iOS update has had a detrimental effect on my year old iPhone SE. In fact it's pretty much destroyed it.

Prior to the update it rarely went below 85% after an overnight charge but since the update I can run the battery flat in a less than an hour using something like Google maps.

I was going to make a warranty claim until Google returned nearly 7 million hits for iOS 11.4 killed my battery.

If you haven't already upgraded, I'd wait.
 

djbaxter

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I have the same phone and I'm not seeing that at all.

It may well be just a coincidence. I've found in the past that when the battery dies on an iPhone it dies fast.

Too many people reporting to be a dead battery coincidence, but it may well have to do with iOS 11.4 altering the background settings. Re-check your settings: limit location services, turn off hotspot, and limit apps refreshing in the background.

See:

https://discussions.apple.com/thread/8425599

https://discussions.apple.com/thread/8409995
 
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zappaDPJ

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I have the same phone and I'm not seeing that at all.

It may well be just a coincidence. I've found in the past that when the battery dies on an iPhone it dies fast.

Too many people reporting to be a dead battery coincidence, but it may well have to do with iOS 11.4 altering the background settings. Re-check your settings: limit location services, turn off hotspot, and limit apps refreshing in the background.

See:

https://discussions.apple.com/thread/8425599

https://discussions.apple.com/thread/8409995
Thanks, that's given me some ideas on where to look. I have wondered sometimes if previous updates have changed some of my preferences but dismissed it as it seemed an odd thing to do.
 

djbaxter

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I do vaguely recall that when my phone rebooted after the update it was asking me to change some settings. Rather than read what they were I just said no to anything but it seems to me if you were in a hurry or not paying close attention it would be easy to approve those changes.
 

Ryan Ashbrook

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Keep in mind batteries do have a natural shelf life. Mine has actually been acting that way even before my last update but I regularly use things like location services.
 
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zappaDPJ

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I made the same post on another forum I manage and I'm certainly not the only one with this issue although the effect it's having seems to vary.

There appears to be no problem with my actual battery according to the built in health setting. It reports 97% maximum capacity.
 

Joeychgo

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Its a thing. ios 11.4 has a battery drain bug.

Turn off Bluetooth - that seems to be the big drain for me.
 
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zappaDPJ

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It's always been enabled on my phone, I use it for hours every day to drive my sound system or as a hand control unit. I'll turn it off for a couple of days and see if it fixes the problem. Thanks for the tip.
 
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