iPhone XS Max How to keep battery from degrading when not using iPhone

Discussion in 'iPhone' started by ThatiPhoneKid, May 26, 2019.

  1. ThatiPhoneKid macrumors 6502a

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    Aug 15, 2017
    #1
    i am so excited to be getting the iPhone 11 but I love my iPhone XS Max so much I’m not going to sell it when the next iPhone comes out so I am wondering as I won’t be using it anymore what are some good tips in order to make sure the battery doesn’t degrade? Thanks
     
  2. Motionblurrr macrumors 6502

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    Jul 1, 2008
    #2
    If you're going to store it and keep in like a drawer or something: Charge the phone up to about 50% and then turn it off to preserve the battery. This is per Apple. Turn it on once in a while and check the charge and make sure everythign is good.
     
  3. tonybarnaby macrumors 65816

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    Dec 3, 2017
    #3
    Trust me when I say if you love the 11 as much as you most likely will, the xs max isn’t worth keeping around. You can sell it for top dollar and then buy another one for cheaper at a later date if you find out you need it for some reason.
     
  4. ThatiPhoneKid thread starter macrumors 6502a

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    Aug 15, 2017
    #4
    Thank you!!:apple:
    thats a good idea actually, thank you! :)
     
  5. tonybarnaby macrumors 65816

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    Dec 3, 2017
    #5
    The other poster is right, you should keep it between 50-60% and turned off in a cool place. But just think about when you would use your max if the 11 is better in every way? You could sell it on swappa for a great price.
     
  6. pika2000 macrumors 601

    Joined:
    Jun 22, 2007
    #6
    Do note that LiIon battery degrades over time as well, even if you do the 50% charge thing. So don’t expect the battery to be in the same condition after a year or two, even if you don’t use it.
     
  7. Jimmy James macrumors 601

    Jimmy James

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    Oct 26, 2008
    #7
    It will self-discharge over time and needs to be checked and topped up periodically. But it won’t degrade substantially.
     
  8. pika2000 macrumors 601

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    Jun 22, 2007
    #8
    Yes, but it will still degrade.
    And once something is put inside a drawer, most people will probably forget about it, let alone having to check up on its battery etc. I simply want to remind the OP not to expect zero degradation, especially after a year or two of the phone sitting in a drawer.
     
  9. Newtons Apple, May 27, 2019
    Last edited: May 27, 2019

    Newtons Apple macrumors Core

    Newtons Apple

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    Mar 12, 2014
    Location:
    Jacksonville, Florida
    #9
    Todays love for you MAX will wane quickly when September comes around. I guarantee you will feel differently about you MAX when you get your new one. After the new phone arrives I doubt you will go back to your MAX. Sell it and let someone else enjoy.
     
  10. now i see it macrumors 68040

    Joined:
    Jan 2, 2002
    #10
    I have two older iPhones I rarely use but I still need them occasionally for a second camera or display for a Bluetooth device. Both got new batteries.
    If you leave it in a drawer at 50%, the voltage will drop down on its own to almost nothing in several months. That's bad.

    The perfect voltage to store the iPhone is at a 40% charge at a cool temperature. (fridge is ok if kept in a sealed plastic bag). But the moment you turn it off (at 40%) it slowly starts discharging on its own even though it's not being used. So it's better to store it at 50-60% charge to give it a little leeway to discharge. Any voltage below 40% is a bit harmful to the battery too during storage. Having it sit below 40% for months at a time isn't good for it either.

    So the best way to take care of the battery is to start the iPhone every month to check its state of charge and top it up to 50% before putting it away again. Don't let it sit unused for more than maybe 2-3 months.
     
  11. ThatiPhoneKid thread starter macrumors 6502a

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    Aug 15, 2017
    #11
    Thank you all for your helpful advice. I really appreciate it
     
  12. alpi123 macrumors 6502a

    alpi123

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    Jun 18, 2014
    #12
    What's with a lot of places suggesting storing the old device with around 50% battery? When I did this with my 6s, it was dead in a matter of days. But when I stored it after a full charge to 100%, I randomly checked it after a week and there was 1% to none loss of battery.
     
  13. Jimpilot macrumors 6502a

    Jimpilot

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    Sep 11, 2014
    Location:
    DFW, Texas
    #13
    Same experience here with 10s max
     
  14. tonybarnaby macrumors 65816

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    Dec 3, 2017
    #14
    100% is high voltage and is stressful to the battery. A fully functional battery should be kept around 60% and checked every few months.
     
  15. Bobby dazzler macrumors member

    Joined:
    Nov 17, 2013
    #15
    Yes. This is about right.
    Anyone doing this should not notice any unusual degradation of the Li ion battery.

    They get stressed if left at 100%
    And stressed at anything below 20%
    They actually don’t like fast charging above 80%
    Plus, they stress out with anything that discharges them too quickly.
    They don’t like too much heat, or severe cold either
     

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14 May 26, 2019