iPhone 8(+) iPhone 8 Battery Life

Discussion in 'iPhone' started by DunMeClip, Feb 1, 2018.

  1. DunMeClip macrumors newbie

    DunMeClip

    Joined:
    Oct 14, 2013
    Location:
    New York
    #1
    So I’m using the app, Battery Life, on this new iPhone 8 I purchased in October. Awesome phone, no complaints. I check it maybe twice a month and things seemed to be in tip-top condition. January 15th, battery life 100%. Nice.

    Fast forward to yesterday. Was bored on the train and just wanted to fool around with the app. Battery life now 92%?! How does the life of a battery decline 8% in 15 days? Anyone else experiencing this type of decline on the 8/8+ or the X?
     

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  2. Mlrollin91 macrumors G5

    Mlrollin91

    Joined:
    Nov 20, 2008
    Location:
    Ventura County
    #2
    That app is completely worthless, it is nothing but an estimate. Just delete it and never worry about it again. The only, and I mean only way, to check is via Coconut battery on a Mac. It reads the real time battery hardware to give a live, minute by minute update of your batteries health.

    iOS 10 killed off those apps from reading the hardware, iOS 11 then killed off them reporting charging current. Those apps do not work, iOS doesnt allow it.
     
  3. DunMeClip thread starter macrumors newbie

    DunMeClip

    Joined:
    Oct 14, 2013
    Location:
    New York
    #3
    Ah gotcha! Thanks!
     
  4. jav6454 macrumors P6

    jav6454

    Joined:
    Nov 14, 2007
    Location:
    1 Geostationary Tower Plaza
    #4
    Battery apps in the app store are educated estimates (guesstimates). Don't download them. Like @Mlrollin91 said, Coconut Battery is the only true way to guage almost exactly your battery wear and tear.
     
  5. now i see it macrumors 68040

    Joined:
    Jan 2, 2002
    #5
    CoconutBattery isn't very accurate either. It'll give me a battery life anywhere between 93% to 100% depending on who knows what. Up & down. But it's still useful to get a general rough estimate of things.
     
  6. Mlrollin91 macrumors G5

    Mlrollin91

    Joined:
    Nov 20, 2008
    Location:
    Ventura County
    #6
    That is completely false. Coconut battery reads the real time hardware. Batteries fluculate depending on temperature, voltage, charge level and under load. You are only supposed to check battery health when the battery is fully charged at 100%. That’s when it is the most accurate.

    I have been using coconut for 6+ years and it has never once been wrong. It is completely normal for a battery to fluctuate upwards of 10%.
     
  7. Lizziejh macrumors member

    Lizziejh

    Joined:
    Jun 12, 2016
    Location:
    UK
    #7
    I've searched for Coconut battery in the app store, but nothing comes up with that name. Can someone link me to it please?
     
  8. Mlrollin91 macrumors G5

    Mlrollin91

    Joined:
    Nov 20, 2008
    Location:
    Ventura County
    #8
    Its a Mac app, You have to google it.
     
  9. MacDawg macrumors Core

    MacDawg

    Joined:
    Mar 20, 2004
    Location:
    "Between the Hedges"
    #9
    Take a look here...
    https://www.coconut-flavour.com/coconutbattery/

    It runs on your Mac and reads your Mac and iOS devices
     
  10. Lizziejh macrumors member

    Lizziejh

    Joined:
    Jun 12, 2016
    Location:
    UK
    #10
  11. Dario69 macrumors member

    Joined:
    Sep 11, 2017
    #11

    Thanks Mlrollin91. Moments like these I wish I had a Mac. I also noticed weird readings from Battery Life. It was all over the place today on the 6s+. Your responses above answers why. I guess I won’t bother putting it on the 8+ now. Garbage.
     
  12. tonybarnaby macrumors 65816

    Joined:
    Dec 3, 2017
    #12
    iOS will be coming out with some kind of battery health info in an update this spring.
     
  13. Mlrollin91 macrumors G5

    Mlrollin91

    Joined:
    Nov 20, 2008
    Location:
    Ventura County
    #13
    Who knows what that entails. It could be very, very basic.
     
  14. HereIsTom macrumors newbie

    HereIsTom

    Joined:
    Oct 5, 2017
    Location:
    Netherlands
    #14
    I am very happy with the battery of the iPhone 8 Plus, I have not come across a phone that takes so long with the battery!
     
  15. GomerBoy macrumors 6502

    Joined:
    Jun 12, 2012
    #15
    Very happy as well! The battery easily lasts me all day and I still have about 40 percent left on heavy usage days! What other smartphone can beat that?
     
  16. 1rottenapple macrumors 68020

    Joined:
    Apr 21, 2004
    #16
    I had those battery apps before but I find that i keep checking them obsessively and for what? I find that its not worth it to spend my time obsessing about the my phones battery capacity.
    --- Post Merged, Feb 2, 2018 ---
    Ya awesome battery life. Quite happy with it.
     
  17. joeblow7777 macrumors 603

    Joined:
    Sep 7, 2010
    #17
    I’m still pretty impressed with the battery life of my 8 Plus. I’m not exactly what you would call a power user, but I last plugged in my phone on Sunday night during the Super Bowl and it still had a charge this morning (Wednesday). Most used apps were Facebook, Twitter, and Chrono Trigger (a 16 bit era role playing game)
     

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  18. 1rottenapple macrumors 68020

    Joined:
    Apr 21, 2004
    #18
    I didn’t know chrono trigger was on the iPhone.
     
  19. TC_GoldRush macrumors 6502

    TC_GoldRush

    Joined:
    Dec 6, 2017
    Location:
    Nevada, USA
    #19
    iOS doesn't allow those readings anymore, just listen to the rest of the people... I need like 4 most posts to reach 100!
     
  20. joeblow7777 macrumors 603

    Joined:
    Sep 7, 2010
    #20
    Since 2011, apparently. I’ve gotten hooked on playing RPGs on my phone. Just got Chrono Trigger after finishing FFVI and FFIX.
     
  21. GomerBoy macrumors 6502

    Joined:
    Jun 12, 2012
    #21
    Got my best usage time yet today...9 hours and still have 32 percent left! After I post this message, it will be going on the wireless charger for the night. I used the phone heavily today...lots of Safari surfing, FaceBook, iMessages, and Snapchat. This thing is a tank...could probably get about 11 hours of usage if I let the battery completely drain!
     

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20 February 1, 2018