iPhone 8.4 Killing 6 Battery

Discussion in 'iOS 8' started by joshuakhania, Jul 2, 2015.

  1. joshuakhania macrumors member

    Joined:
    Sep 13, 2014
    Location:
    West Milwaukee, WI
    #1
    Ever since installing 8.4 my battery can't last through the day. I had my phone charging through a computer and listening to NPR and it still died.

    When I wake up in the morning the battery is at <10%. I hope this isn't an issue that doesn't get fixed for 2-3 months :eek:
     
  2. Cobold macrumors member

    Cobold

    Joined:
    Sep 16, 2014
    Location:
    Dieburg / Germany
    #2
    Do a clean restore. I don't have any battery-problems with iOS 8.4 on my iPhone 6.
     
  3. Tony_YYZ macrumors member

    Joined:
    Jun 30, 2015
    #3
    I went from 8.2-8.4 on my 6. Battery life seems about the same so far.

    I'd recommend a reset/start from scratch
     
  4. Pagemakers macrumors 68000

    Pagemakers

    Joined:
    Mar 28, 2008
    Location:
    Manchester UK
    #4
    Are you using the Music app? That may be the culprit.
     
  5. lchlch macrumors 6502a

    Joined:
    Mar 12, 2015
    #5
    I on 8.4 (am using the music app).

    Battery life same as 8.3
     
  6. deep1 macrumors regular

    Joined:
    Mar 29, 2011
    #6
    Great battery here, downgraded from iOS 9, is watsapp shows up in usage list? If so then in privacy contacts disable for the watsapp and enable as needed.
     

    Attached Files:

  7. AML225 macrumors regular

    Joined:
    Apr 11, 2010
    #7
    I'm noticing the same on my 6+. After a normal day of usage in 8.3 my battery would be around 50-60%, now after a less than a normal day in 8.4 my battery is down to 36%. Neither of these involved listening to any music.
     
  8. Ipadlover29 macrumors 6502a

    Joined:
    May 28, 2011
    #8
    I haven't used the music app at all today and battery life has been horrible. My phone is at 53% right now. The phone has been unplugged from the charger for less than 9 hours and usage is about 4 hours. Normally with the same usage and standby time before 8.4 I would be at 70%. I've disabled Apple music and iCloud music library. For the first time today I noticed my phone getting really hot when using google maps for navigation for 15 minutes. The car was not hot and air conditioning was running. I think I might do a clean restore if this continues.
     
  9. C DM macrumors Westmere

    Joined:
    Oct 17, 2011
    #9
    Had probably what is the best battery usage and standby I've ever had yesterday on my second day of using 8.4. Today it's been somewhat below average, which is not that common, but also not unusual with previous iOS 8 versions. So over a few days it's more or less about the same as before.
     
  10. I7guy macrumors G5

    Joined:
    Nov 30, 2013
    Location:
    What Exit?/Saguaro Country
    #10
    On a 5s battery life seems on par with iOS 8.3.
     
  11. adamhenry macrumors 65816

    adamhenry

    Joined:
    Jan 1, 2015
    Location:
    On the Beach
    #11
    Battery life seems similar to 8.3 on my IP6. Yesterday I was at the beach for about 5 hrs listening to music through BT with some email and web browsing. I had 80% battery remaining when I got home.
     
  12. Nonentity macrumors member

    Joined:
    Sep 11, 2007
    #12
    +1 Add me to the list. iPhone 6+ gets very warm whilst streaming, and becomes unresponsive/music will skip like the processor is being throttled to reduce temperature.

    Same usage as before 8.4: 1.5 hours for my morning commute/workout and 1 hour for my commute home. Streaming Beats Music would use 2% battery over 24hrs. Now the Music App is using 17% battery over 24 hours.

    Even when I'm not streaming, battery life seems worse.

    Anyone tried restoring (fresh or from backup) yet?

    Also, if I restored as a new device, anyone know if my Activity App data will sync from iCloud or is it restored from backup only? Don't want to lose my 'achievements' ;)
     
  13. XTheLancerX macrumors 68000

    XTheLancerX

    Joined:
    Aug 20, 2014
    Location:
    NY, USA
    #13
    Battery is MUCH better for me, usually at 50% I would see 3-3.5 hours of use.
     

    Attached Files:

  14. Pagemakers macrumors 68000

    Pagemakers

    Joined:
    Mar 28, 2008
    Location:
    Manchester UK
    #14
    Have you tried Apple Music? Makes my iPhone 6 get hot in use and that tends to drain the battery.
     
  15. XTheLancerX macrumors 68000

    XTheLancerX

    Joined:
    Aug 20, 2014
    Location:
    NY, USA
    #15
    Don't know what I would listen to, I use spotify lol. That's why I haven't run into any issues, probably.
     
  16. adamhenry macrumors 65816

    adamhenry

    Joined:
    Jan 1, 2015
    Location:
    On the Beach
    #16

    Yes. I don't stream so I disabled Connect and Show Apple Music. No heating, no lagging, and no excessive battery use.
     
  17. GreyOS macrumors 68030

    GreyOS

    Joined:
    Apr 12, 2012
    #17
    I've had the best battery life I've ever noticed on 8.4!
     

    Attached Files:

  18. bushido Suspended

    bushido

    Joined:
    Mar 26, 2008
    Location:
    Germany
    #18
    i am not sure if 8.4 or the heat wave outside is to blame yet in my case. however my iPhone 6 battery has always sorta sucked
     
  19. Delorean2006 macrumors 6502a

    Joined:
    Feb 4, 2012
    #19
    My battery lit was awful on my 6+ at first, all I did was download the install file and forced the update through iTunes, performance was greatly improved, so was battery life and the phone stopped getting really warm
     
  20. JetBlack7 macrumors 68020

    JetBlack7

    Joined:
    May 14, 2011
    Location:
    Portugal
    #20
    My battery life on my iPhone 6 is swell. Better than 8.3.
     
  21. Rhonindk macrumors 68020

    Rhonindk

    Joined:
    Oct 3, 2014
    Location:
    Bloom County: Meadow Party
    #21
    On 8.4 I was getting about 15% less battery life for a day's use. I do not use Apple Music and I disabled Show AM and found my battery appears similar to 8.3. ;)
    iPhone 6+ 64gb AT&T
     
  22. Pagemakers macrumors 68000

    Pagemakers

    Joined:
    Mar 28, 2008
    Location:
    Manchester UK
    #22
    Those of us with poor 8.4 battery life, do you have an Apple Watch?
     
  23. Ipadlover29 macrumors 6502a

    Joined:
    May 28, 2011
    #23
    Battery seems to be much better now. I've disabled Apple music completely.
     
  24. krzysko, Jul 4, 2015
    Last edited: Jul 4, 2015

    krzysko macrumors newbie

    Joined:
    Dec 12, 2014
    #24
    What exactly did you do? I unchecked "show apple music" but that didnt change much in terms of battery...
    My battery is around 20% worse with 8.4 - meaning i usually had 60-70% left in the evening and now i have barely 40-50
     
  25. Ipadlover29 macrumors 6502a

    Joined:
    May 28, 2011
    #25
    I disabled iCloud music library, show apple music and in iTunes & App Store make sure use cellular data is disabled.
     

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