iPhone 8(+) 8+ Battery health

Discussion in 'iPhone' started by Simacca, Jun 25, 2018.

  1. Simacca macrumors 65816

    Simacca

    Joined:
    Jul 31, 2008
    Location:
    UK, South East.
    #1
    My launch day 8+ battery health is at 93%. Have I got anything to worry about or is the battery health section not that accurate? iOS 11.4
     
  2. JPack macrumors 68040

    JPack

    Joined:
    Mar 27, 2017
    #2
    Your phone is on the low side of battery health. Many people with iPhone 7 report 90-95%.
     
  3. aakshey macrumors 68000

    aakshey

    Joined:
    Jun 13, 2016
    #3
    Not normal. Get it replaced by paying USD 29.

    If you’re using fast charging then that’s the culprit.
     
  4. C DM macrumors Sandy Bridge

    Joined:
    Oct 17, 2011
    #4
  5. Newtons Apple macrumors Core

    Newtons Apple

    Joined:
    Mar 12, 2014
    Location:
    Jacksonville, Florida
  6. NoBoMac, Jun 25, 2018
    Last edited: Jun 25, 2018

    NoBoMac macrumors 68020

    Joined:
    Jul 1, 2014
    #6
    No and no.

    Again, the $29 battery replacement program is for out-of-warranty devices. An iPhone 8/8+ is still under warranty, so, ineligible.

    https://support.apple.com/iphone/repair/battery-power

    I fast charge once every day and my day one 8 is at 98%. That said, if OP is frequently running the battery down multiple times per day and fast charging multiple times a day and or heating up the device frequently (eg. really heavy use, sitting in a hot car), yes, the battery might be getting stressed more than most people. But since Apple supports USB-C charging on their devices, fast charge is a safe charging method.
     
  7. Ffosse macrumors 68000

    Joined:
    Nov 5, 2012
    #7
    I'm surprised that both my 8 (bought Oct 17) and my X (January 18) both show 100%, although I'm not yet convinced of Apple's battery health accuracy.

    Perhaps it is accurate and reflects that I've used both phones quite lightly.
     
  8. Simacca thread starter macrumors 65816

    Simacca

    Joined:
    Jul 31, 2008
    Location:
    UK, South East.
    #8
    Am in uk, so not sure what the policy is here. I use wireless charging mainly.
     
  9. Simacca thread starter macrumors 65816

    Simacca

    Joined:
    Jul 31, 2008
    Location:
    UK, South East.
    #9
    My battery is usually between 40 and 50% by the end of the day, and then I will wirelessly charge in the evening, then switch off charger when it reaches 100%.
     
  10. Simacca thread starter macrumors 65816

    Simacca

    Joined:
    Jul 31, 2008
    Location:
    UK, South East.
    #10
    I remember doing a hard reset which made the battery drop by about 3%. This was ages ago on iOS 11.

    I still get really good battery life, so will most probably wait and see how it goes.
     
  11. Petru246 macrumors newbie

    Joined:
    Oct 12, 2018
    Location:
    Romania
    #11
    Hi, bought my iPhone 8 in February 2018 and now I have 90% battery life. It is normal? I only charge it with the charger found in the box. I am still under one year warranty.
     

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10 June 25, 2018