IOS 11.4.1 Terrible battery drain

I was on ios 11.3 and updated to iOS IOS 11.4.1 which shocked me with severe battery drain. I’d say iOS 11.3 served better battery consumption. Please, Apple, do something to iOS IOS 11.4.1 to prevent battery drain. My device is iPad mini 2 with retina display.

null-OTHER, iOS 11.4.1, IPad mini 2 retina cellular and wif

Posted on Jul 11, 2018 4:25 AM

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Posted on Sep 26, 2018 9:32 AM

I had the same issue in iOS 11 for iPhone and iPad (iPad was worse). Calendar app was the culprit. Calendar on iPhone and iPad was consistenty 60%-90% of battery usage. What solved it for me was: removing (turning off) and adding back (turning back on) calendars for iCloud, outlook, gmail, yahoo (I have about 6 I sync with). I removed and then added back Icals that I subscribed to. Then turning all to Fetch except for iCloud - I kept that as Push. Then setting Fetch to automatic. Powered off and then back on. This worked in iOS 11 and 12. No more abnormal battery usage. I can’t say exactly which portion of that process solved the issue, but I’m back to normal now. Good luck.

112 replies

Jul 19, 2018 2:29 AM in response to Animatic_33

The same reason why I want to downgrade mine to 11.4 at at least I wasn’t experiencing this kind of a constant rebooting when I was using it without upgrade.

HOW CAN I BE ABLE TO DOWNGRADE THE IOS TO 11.4.

And the rate at which my battery drain is just alarming.

The data is being consumed too fast. I used a data of 2gb to upgrade an iOS of approximately 300mb. That is really not cool.

Jul 21, 2018 9:07 PM in response to Farghalalimabrouk

SAME HERE. My iPhone 7 was fine before i updated it. But now, this battery drain is so terrible that i can't even use my phone for 2 hours or more. I don't have any auto-sync like bluetooth, airdrop, push mail or any apps that uses auto-sync or auto-fetch. Not even using location, except for Find iPhone in system use. This is so terrible. I'm worrying about the battery's life. I'm worried that this is one of apple's INTENTIONAL WAY of damaging our phones, i just hope not. I HOPE THAT THEY IMMEDIATELY FIX THIS ISSUE.

Jul 22, 2018 8:33 AM in response to king166

Took your suggestion- did a full reset. No effect on my newly increased battery drain issues since 11.4.1 (iphone7). Plus, it changed all of my privacy settings, location services, deleted all of my wifi passcodes, even background images. If this worked it would have been worth it, but now it's just 2 hours of annoyance trying to get everything back to the way it was. grrrr. thanks for the suggestion but this wasn't worth it for me.

Jul 24, 2018 7:19 PM in response to Farghalalimabrouk

Iphone 6s, no battery problems until IOS upgrade. Now if I use my phone, battery drains. Need to recharge 3-4 times a day. This is my 3rd iPhone, never had this kind of issue, my mom still uses my old iPhone 4. Not willing to spend X amount of money on new battery or phone because of a faulty software. If I need to buy a new phone just because of this.. definitely wont be Apple.

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IOS 11.4.1 Terrible battery drain

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