iOS 12.4 Battery Life

Discussion in 'iOS 12' started by theapplehead, Jul 23, 2019.

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iOS 12.4 Battery Life

  1. Better

    16 vote(s)
    35.6%
  2. Same

    19 vote(s)
    42.2%
  3. Worse

    10 vote(s)
    22.2%
  1. theapplehead macrumors 6502

    theapplehead

    Joined:
    Dec 17, 2018
    Location:
    North Carolina
    #1
    Here we go again. After a little over 24 hours since the release of iOS 12.4, I’m curious to see how everyone’s battery is holding up. Would you say your battery life is better, worse, or the same after updating?
     
  2. monnyblack1 macrumors regular

    monnyblack1

    Joined:
    Jan 24, 2016
    Location:
    meridian ms
    #2
    My battery on my iPhone Max is good and I’m a heavy user
     
  3. deanzaZZR macrumors newbie

    Joined:
    Jul 13, 2018
    Location:
    South Bay, CA
    #3
    Much worse. Like night and day worse. This is on a refurbished 7+ that I purchased in January. I'm new to iPhones and battery performance was exceptional until this "update".
     
  4. theapplehead thread starter macrumors 6502

    theapplehead

    Joined:
    Dec 17, 2018
    Location:
    North Carolina
    #4
    Did you update via iTunes or OTA?
     
  5. deanzaZZR macrumors newbie

    Joined:
    Jul 13, 2018
    Location:
    South Bay, CA
    #5
    OTA. Is there a difference?
     
  6. theapplehead thread starter macrumors 6502

    theapplehead

    Joined:
    Dec 17, 2018
    Location:
    North Carolina
    #6
    I have noticed that when I update with iTunes, the iOS is more stable due to the fact that it is a full download of the iOS rather than the patch you would get from updating your iOS OTA.
     
  7. George Dawes macrumors 6502a

    George Dawes

    Joined:
    Jul 17, 2014
    Location:
    =VH=
    #7
    My 8 plus loses 50 % every night , it’s due to photos and background processes

    Any way to stop this happening ?
     
  8. Hal~9000 macrumors 68020

    Hal~9000

    Joined:
    Sep 13, 2014
    #8
    iOS 12.4 battery life has been great for me on my 7+. Of course I did a clean install and set it up as new with the usual battery saving settings:
    • No background app refresh
    • No push accounts, only manual
    • Location only allowed for maps, apple workouts, and find my iPhone.
    Settings -> General -> Background App Refresh -> “Off”.
     
  9. theapplehead thread starter macrumors 6502

    theapplehead

    Joined:
    Dec 17, 2018
    Location:
    North Carolina
    #9
    If what @Hal~9000 said doesn’t completely solve your problem, try restoring/erasing your iPhone with iTunes and reinstalling iOS 12.4.
     
  10. jrdatrackstar1223 macrumors regular

    jrdatrackstar1223

    Joined:
    Oct 31, 2017
    Location:
    Brownsburg, IN
    #10
    Curious, what was your battery prior to 12.4? I keep hearing so many people say it is better than 12.3.1 but it is really about the same for me.
     
  11. theapplehead thread starter macrumors 6502

    theapplehead

    Joined:
    Dec 17, 2018
    Location:
    North Carolina
    #11
    Same with me. I have noticed no difference in battery life.
     
  12. Hal~9000 macrumors 68020

    Hal~9000

    Joined:
    Sep 13, 2014
    #12
    Battery life was good for me on 12.3.1 as well :) I mean 12.4 feels a tiny bit better... but it’s close and could just be in my head or from the clean install getting rid of some junk?

    As long as you do always do a clean install say via iTunes or ‘erase all content and settings’, set up as new and not from a backup, give yourself a few days for your newly updated device to index its files, and do the 3 tricks I outlined above (background app refresh off, push accounts set to manual, and location services limited to certain ones) you should never have any issues.

    I must admit I don’t really worry about battery declines when updating to different versions within a major iOS version (say from 12.1 -> 12.2 or 12.3.1 -> 12.4 etc). I’m a lot more cautious though when going from one major iOS version to a new major version (say 12.4 -> 13), but even then I make sure to install the new one as soon as it’s released and start testing it right away so that if battery life does decline a lot I can roll my phone back via IPSW restore through iTunes, which Apple allows for the first few weeks following a major iOS release.
     
  13. Hi Tek macrumors member

    Hi Tek

    Joined:
    Sep 27, 2015
    Location:
    Canada, Hali
    #13
    Slightly better. Installed OTA.

    May start doing installs via iTunes
     
  14. Hal~9000 macrumors 68020

    Hal~9000

    Joined:
    Sep 13, 2014
    #14
    Btw for anyone curious the battery life effects of installing a new iOS update on your device, I highly recommend checking out iAppleBytes channel on Youtube. He is one of the only ones out there that actually shows you the battery run down tests minute by minute (speed up though so it doesn't take hours to view) and makes sure all the phones have the same settings / brightness / etc. Other Youtube channels simply give their opinion and you aren't sure if they really tested things the same way across all devices.

    Here's the video he just posted of iOS 12.4 battery test, he highly recommends it!

     
  15. George Dawes macrumors 6502a

    George Dawes

    Joined:
    Jul 17, 2014
    Location:
    =VH=
    #15
    Definitely an improvement with 12.4

    But still loads of background processing taken up by Photos !
     
  16. deanzaZZR macrumors newbie

    Joined:
    Jul 13, 2018
    Location:
    South Bay, CA
    #16
    Battery life has improved since I last posted but still not as good as 12.3 for me. I'm considering doing a fresh install but am kinda lazy about stuff like this...
     
  17. Marinier macrumors newbie

    Marinier

    Joined:
    Apr 19, 2017
    Location:
    Ukraine, Kharkiv city
    #17
    Guys, I am on iOS 12.0 on my iPhone 8 Plus since the end of 2018. Everything works just fine, but I sometimes guess if I should update to 12.4 or stay with my 12.0. It’s a kind of important decision because I most likely will not update to iOS 13 to avoid serious performance and battery decrease. This is why it is up to now to ,are a decision within last few updates that may come after 12.4 and before 13 release.
     
  18. theapplehead thread starter macrumors 6502

    theapplehead

    Joined:
    Dec 17, 2018
    Location:
    North Carolina
    #18
    I would upgrade to 12.4 if I were you. It is arguably the most stable release of iOS 12 and also brings with it a bunch of handy new features as well as security enhancements. I think it is totally worth it.
     
  19. *~Kim~* macrumors 6502a

    Joined:
    May 6, 2013
    Location:
    UK
    #19
    I think I would go with 12.4 over 12.0. Aren’t there some apps requiring 9.3.5 rather than 9.0, if I recall correctly? So on that basis 12.4 might get you more app support than 12.0.

    I plan to update my Mini 5 eventually as I’m not a lover of iPad OS so far, but I’ll wait to see if there is a .1 or anything like that.
     
  20. TheIntruder macrumors 6502a

    TheIntruder

    Joined:
    Jul 2, 2008
    #20
    12.4 has been good, if not a bit better than 12.3.1 for my XS, and the latter didn't differ much from 12.1.2 that my phone shipped with.

    But the bigger thing with 12.4 is that it patches five of six security vulnerabilities that require no user interaction, and can be exploited through iMessage. Now that they've been published, they're ripe for exploit.

    The sixth hasn't been completely fixed in 12.4, so we'll see whether there's a 12.4.1 or it will wait for 13.0.
     
  21. minimo3 macrumors 6502

    Joined:
    Oct 18, 2010
    #21
    C733F7A6-99D6-4B1A-93A2-8B389134B9B7.jpeg
    Battery life on 12.4 is fantastic. I can get up to 1.5 hours screen on time before it dies (7 month old battery with 96% health)
     
  22. Tech198 macrumors G5

    Joined:
    Mar 21, 2011
    Location:
    Australia, Perth
    #22
    Makes sense,, i would try this as well if a erase all content & settings doesn't fix.
     
  23. Marinier macrumors newbie

    Marinier

    Joined:
    Apr 19, 2017
    Location:
    Ukraine, Kharkiv city
    #23
    What iPhone model is this? 1,5 hours looks like a joke. I have recently updated my iPad Pro 10.5 12.1>12.4, and the battery life became significantly better. 2,5 hours of YouTube + Safari ate 25% of charge only. On 12.1 it was 50%. But I still do not update my iPhone 8 Plus. Still not sure if the battery behavior will be the same.
     
  24. internetrando macrumors 6502

    internetrando

    Joined:
    Jun 5, 2018
    Location:
    Texas
    #24
    Mine has been just as good, if not better.

    I only do updates on iTunes and I have yet to have any major issues with the software. It’s anecdotal, but I think that most issues could be avoided by doing updates this way.
     
  25. *~Kim~* macrumors 6502a

    Joined:
    May 6, 2013
    Location:
    UK
    #25
    Yes, I do the same. It’s a bit of a pain though and made me restart mid update download last time, which is why I might wait for a .1 so there isn’t another update in a short space of time.
     

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33 July 23, 2019