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If your battery started to drain since 14.2/3/4, what phone do you have?


  • Total voters
    74

JoeShades

macrumors 68000
Sep 1, 2010
1,670
885
Williamstown, NJ
I wonder if battery issues are related to how people update/upgrade iOS. Does doing an over the air (OTA) update cause the battery issues? Has anyone backed up their phone via iTunes, do a full reinstall of iOS 14 using iTunes, and restore your back up via iTunes? If you have, has that fixed the battery issues?

I'm old school and only trust using iTunes to update/upgrade iOS since it does a full wipe of the previous iOS version and installs the complete new one. I have not had any battery issues (so far) all the way back to iOS 4 (iPhone 3GS). I know it's only anecdotal evidence.
Yeah I do over the Air
 

Isamilis

macrumors 68020
Apr 3, 2012
2,197
1,079
I suspect, it’s more related to 4g/5G signal. In my case, the problem just come and go. 14.3 and 14.4 are same.
 

Be Cloud Savvy

macrumors newbie
Feb 8, 2021
7
5
It’s a bit risky to disable iCloud backup for Messages, if people have important messages that they can’t risk losing - if their device is lost, stolen, damaged or needs to be erased and a reinstall initiated. Of course, if the iPhone owner is backing up to their computer regularly, then disabling iCloud backup poses less of a risk of losing texts. (The texts that would be lost would be those that have not been backed up to a computer. Consider enabling auto backup to a computer, over WiFi.)
 

Rujamajoco

macrumors newbie
Feb 10, 2021
1
1
I have iPhone 8 and am now up to 14.4. The battery drain is crazy. Just now I was in a 4G call and after 20 minutes the battery went from 45% to 9%. I am now trying the fixes above and a few other turn Ed off options. My wife’s iPhone6 had the same problem but being stupid I bought her a new iphone11 which is fine. Only afterwards did I find these threads about the issue. I wasted £600 on her phone! Those is really shameful to go through 3 software updates without a fix or even acknowledging three problem exists at all.
 
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honglong1976

macrumors 68000
Original poster
Jul 12, 2008
1,676
1,135
UK
Did you change something in your phone that could have triggered that? New apps, or new settings?
No, everything was the same. Exposure notifications was 100% battery usage for a few days. Once it died and powered on, the battery life is normal again.

something is definitely running and killing the battery. I suspect the exposure notifications.
 

honglong1976

macrumors 68000
Original poster
Jul 12, 2008
1,676
1,135
UK
I wonder if battery issues are related to how people update/upgrade iOS. Does doing an over the air (OTA) update cause the battery issues? Has anyone backed up their phone via iTunes, do a full reinstall of iOS 14 using iTunes, and restore your back up via iTunes? If you have, has that fixed the battery issues?

I'm old school and only trust using iTunes to update/upgrade iOS since it does a full wipe of the previous iOS version and installs the complete new one. I have not had any battery issues (so far) all the way back to iOS 4 (iPhone 3GS). I know it's only anecdotal evidence.
I think this is one of those urban myths.

I have used two different phones, DFU restored and OTA and it makes no difference. I suspect a shoddy iOS. 14 has been awful so far.

Roll on iOS 15.
 

honglong1976

macrumors 68000
Original poster
Jul 12, 2008
1,676
1,135
UK
Strange. All week charged and when I woke up, it lost a few percent. This morning, I had 2% battery life. The battery dropped overnight. No apps showing, but the last one was Siri at 100%.

Definitely a bug. I will disable SIRI and see if that helps.

Come on iOS15, iOS14 so far is garbage!
 

ediks

macrumors 6502
Nov 17, 2015
452
808
i can confirm that the battery drain has noticeably increased with 14.4 on ip8
 

akash.nu

macrumors G4
May 26, 2016
10,870
16,998
i can confirm that the battery drain has noticeably increased with 14.4 on ip8

Not just you. I’m seeing the same with my iPhone 11 Pro.

a0c43ca38be263dd33d16fb3701563a7.png
 
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akash.nu

macrumors G4
May 26, 2016
10,870
16,998
Not just you. I’m seeing the same with my iPhone 11 Pro.

a0c43ca38be263dd33d16fb3701563a7.png

On the back of my previous post, it seems something dodgy was going on with my device. The device was draining 13-15% overnight without me touching the device but since last night It’s back to its normal battery life of losing around 3-4% overnight.

9ae381208899f6aee37244533f1cd446.png
 

eicca

Suspended
Oct 23, 2014
1,773
3,605
Granted I’m on old hardware, but my A9-powered iPad 9.7 and iPhone 6S were both totally fine in the battery department until iOS 14 came along. Now both of them are dying noticeably faster, draining overnight if unplugged, etc.

I shouldn’t have upgraded. Widgets aren’t worth it to me.
 

gogikr

macrumors member
Feb 23, 2021
66
56
hi guys.. i am with iphone 12 mini since one week.. it was with 14.2 and i restored to 14.4 .. A lot of reading about the battery and i can say im dissapointed.I hope 14.5 will fix this drain, because when i got the iphone 8 2 years ago, the battery was amazing. Here is my usage today.Location off, rise to wake off, 4g on, backgnd refresh off
 

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minimo3

macrumors 6502a
Oct 18, 2010
832
1,030
That’s fantastic battery life for an iPhone 12 mini. My 1 year old iPhone 11 with a much bigger battery (still have 94% batt health) gets about 6 hours total screen on time for a full charge. It used to get 8 hours with iOS 13.7.
 

gogikr

macrumors member
Feb 23, 2021
66
56
Yes, ios 13 is better. My 2 year old iphone 8 gets 4.5 hours usage with 83% battery health..
 

minimo3

macrumors 6502a
Oct 18, 2010
832
1,030
Yes, ios 13 is better. My 2 year old iphone 8 gets 4.5 hours usage with 83% battery health..
Haha yes and my 2016 iPhone SE is still on ios 12 and gets 5hrs screen on time (it did get a new battery in 2018). I fully expect iOS 15 to drop my battery life by another 10-20%.
 

wib

macrumors regular
Nov 16, 2013
167
120
I'm so glad I found this thread! I was afraid I'd have to buy a new phone or get my battery replaced.

My 7 Plus has suddenly started experiencing dramatic battery drains on iOS 14.4. I think it has to be how the phone is reading the battery rather than the actual charge. I had 46% at 20:31, did a hard shutdown and turned it back on and I had 77% at 20:32!

This morning my battery suddenly drained to 1% (for no reason) but had managed to charge to 62% in around 20 minutes. It also drained from 100% to 67% in one hour with only 5 minutes of screen time. My battery health is showing as 93%.

I really hope the next update fixes this as I live in a place prone to earthquakes and prefer to have a full battery as much as possible, just in case...
 

akash.nu

macrumors G4
May 26, 2016
10,870
16,998
I'm so glad I found this thread! I was afraid I'd have to buy a new phone or get my battery replaced.

My 7 Plus has suddenly started experiencing dramatic battery drains on iOS 14.4. I think it has to be how the phone is reading the battery rather than the actual charge. I had 46% at 20:31, did a hard shutdown and turned it back on and I had 77% at 20:32!

This morning my battery suddenly drained to 1% (for no reason) but had managed to charge to 62% in around 20 minutes. It also drained from 100% to 67% in one hour with only 5 minutes of screen time. My battery health is showing as 93%.

I really hope the next update fixes this as I live in a place prone to earthquakes and prefer to have a full battery as much as possible, just in case...

What you’re describing is potentially a battery hardware issue. How long have you had the phone for?
 

wib

macrumors regular
Nov 16, 2013
167
120
What you’re describing is potentially a battery hardware issue. How long have you had the phone for?
Thank you for replying! I've had it since about a month after they were released. So around 4 years (or so)... I always used to get a new phone every 2 years but the price pretty much doubled overnight so I've been waiting for THE one that makes me want to pay that much!
CBB0FDBF-FD01-4C12-860C-23898EAAED14.png
 
Last edited:

akash.nu

macrumors G4
May 26, 2016
10,870
16,998
Thank you for replying! I've had it since about a month after they were released. So around 4 years (or so)... I always used to get a new phone every 2 years but the price pretty much doubled overnight so I've been waiting for THE one that makes me want to pay that much! View attachment 1736435

Generally that’s too long for a battery to be at 93% unless you hardly ever use the device. My recommendation is to get it checked by Apple.
 

Strelok

macrumors 65816
Jun 6, 2017
1,471
1,721
United States
Generally that’s too long for a battery to be at 93% unless you hardly ever use the device. My recommendation is to get it checked by Apple.
I have the same issue on my iPhone 12 Pro (launch day, 100% battery health). There’s something seriously messed up with one of the newer iOS 14 versions. I’ve also never experienced a new iPhone stutter this much. I’m not sure what the software team is doing other than destroying battery life and bad performance.

I mean look at this completely random 10%+ drop with zero usage.
1D870056-4868-45C3-8ED7-5539A7580F2D.jpeg
 

akash.nu

macrumors G4
May 26, 2016
10,870
16,998
I have the same issue on my iPhone 12 Pro (launch day, 100% battery health). There’s something seriously messed up with one of the newer iOS 14 versions. I’ve also never experienced a new iPhone stutter this much. I’m not sure what the software team is doing other than destroying battery life and bad performance.

I mean look at this completely random 10%+ drop with zero usage.
View attachment 1736476

In your case it does feel like you should try a factory reset and monitor the batter usage. I’m on 14.4 and not seeing any of these symptoms.
 

Strelok

macrumors 65816
Jun 6, 2017
1,471
1,721
United States
In your case it does feel like you should try a factory reset and monitor the batter usage. I’m on 14.4 and not seeing any of these symptoms.
Went ahead and did a factory reset. Everything feels smoother so far. I'll try to provide an update on battery life at some point next week. Hopefully this fixed it!
 
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