Battery health beta reliability question?

Discussion in 'iOS 11' started by JediZenMaster, Mar 12, 2018.

  1. JediZenMaster Suspended

    JediZenMaster

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    #1
    Soo I know enough about beta to know sometimes how they can be unreliable but on my iPhone X I am running the latest beta and my max capacity is at 99 percent already.

    I always calibrate my batteries correctly and just wanted to find out if this is a misreading or If I need to get to the Genius Bar.
     
  2. Mcmeowmers macrumors 6502

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    Jun 1, 2015
    #2
    They don't need to be calibrated. How long would you expect it to stay at 100%?
     
  3. GGJstudios macrumors Westmere

    GGJstudios

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    May 16, 2008
    #3
    iPhone batteries no longer require calibration. It's perfectly normal for your battery health to fluctuate up and down over time. Your battery is fine. Just use your phone normally. You don't have to do anything special to maintain your battery.

    Batteries - Maximizing Performance
     
  4. JediZenMaster thread starter Suspended

    JediZenMaster

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    #4
    I simply asked a question.
    --- Post Merged, Mar 12, 2018 ---
    Thank you.
     
  5. BigMcGuire Contributor

    BigMcGuire

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    #5
    Don't worry bout it at all - I use coconutBattery and some of my phones out of the box are 103% design capacity, and others are 96% design capacity.

    My 6s+ was 96% design capacity out of the box. Nearly 230+ cycles later, it was still 96% design capacity.

    The fall isn't linear and sometimes, after 100 or so cycles, it can actually increase. You'll see too that it will fluctuate - so you wanna take an average over a long period of time.

    Not going below 20%, keeping it out of heat, charging at slower rates instead of super fast rates can help overall longevity. You should have 80% of design capacity after 500 cycles. My wife uses her phone a lot more than I do and after 2 years and 350+ cycles her design capacity has only gone down at most 6%.
     
  6. Mlrollin91 macrumors G5

    Mlrollin91

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    #6
    There was no attitude in the post. It was a legit question. How long do you expect a battery to retain 100% health? It’s rated for 80% after 500 cycles. Thus, if you have had your phone for more than 3 weeks, you should expect it to be under 100%.
     
  7. BigMcGuire Contributor

    BigMcGuire

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    #7
    Just so you know how OCD I am when it comes to batteries - check image below:

    [​IMG]

    Note the F column. This is design capacity. See the fluctuation? Normal. I do this for all my phones (and have since the 6+). :) I picture it as a hobby, but I don't check it as often as I used to. My 6s+ had pages and pages and .... <cough>.

    I red'ed out some of the columns because they weren't titled correctly.

    No need to calibrate unless you're experiencing some weirdness after an update (like it dropping 15% in a few minutes, etc...).
     
  8. JediZenMaster thread starter Suspended

    JediZenMaster

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    #8
    It was the tone of your response. It’s like saying “well what did you expect?” Which if said a certain way can be offputting but whatever
    --- Post Merged, Mar 12, 2018 ---
    I feel a lot better about it now. I can get a little OCD about this stuff
     
  9. Mlrollin91 macrumors G5

    Mlrollin91

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    #9
    First of all, I didn’t make that original post. So maybe you should check the usernames before you respond.

    Second, there was no tone in the original poster. You are coming here asking why your battery is already at 99% health. It’s a completely legit question. How long did you actually expect a battery to stay at 100%?

    Third, the word “well” was not the from the original post. Which means you can’t interpret it as being in the post.
     
  10. BigMcGuire Contributor

    BigMcGuire

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    #10
    I wish forever :). Then again, I couldn't justify my hobby of reading about batteries, testing them, recording capacity levels, playing wi... <cough> if they lasted forever. Haha.
     
  11. Mlrollin91 macrumors G5

    Mlrollin91

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    #11
    Wouldn’t that be a dream.
     
  12. Chazzle macrumors 68000

    Chazzle

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    #12
    Hasn't so far...
     
  13. BigMcGuire Contributor

    BigMcGuire

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    #13
    In hopes to diffuse --- if ya'll get a little bored... this is a fun watch. :)



    Check out for the fun part
     
  14. chekz0414 macrumors 6502a

    chekz0414

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    #14

    I also have a launch day X, mine is on 100% have you been using a lot of cycles on your battery?
     
  15. BasicGreatGuy Contributor

    BasicGreatGuy

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    #15
    Fingers crossed it will still work. If not, maybe the developer can update.
     
  16. Phil A. Moderator

    Phil A.

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    #16
    Mod Note
    I've deleted a lot of posts in this thread as it got seriously derailed. Please keep on topic!
     
  17. Chazzle macrumors 68000

    Chazzle

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    #17
    Thanks everyone. Sorry for contributing to the derail.
     
  18. tonybarnaby macrumors 6502a

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    #18
    A couple things I'm curious about as this is my first iPhone:

    1. Does anyone know how many cycles these batteries are rated for? I've heard 4 - 500

    2. Why does Apple make it impossible to track cycle count without using something like coconut battery?
     
  19. BigMcGuire Contributor

    BigMcGuire

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    #19
    Apple Guarantees 80% design capacity within 500 cycles. I've seen iPhones with almost 400 cycles still have 93%+ capacity left so the degradation is not linear. I saw a 4s with 1200+ cycles that still had 86% capacity left.

    They used to before iOS 10 - they turned it off because people, often misinformed, will freak out about non-issues because they don't understand battery chemistry and because they don't consistently use the software - like checking for design capacity at 50% charge instead of 100%, etc... Same reason why Apple took away the % battery left on Macs - ticked me off. Thank goodness we still have coconutBattery.
     
  20. Chazzle macrumors 68000

    Chazzle

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    #20
    1. 500 cycles. https://www.apple.com/batteries/service-and-recycling/

    2. To limit the number of people that otherwise may find out their battery is degrading faster than normal (only common with very heavy usage as my batteries usually last well beyond 500 cycles).
     
  21. tonybarnaby macrumors 6502a

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    Dec 3, 2017
    #21
    Sounds good. I have some battery ocd like you claim to have, but I'm getting over it. I no longer only charge to 80%. I charge to 100% every night, but I do my best to keep it above 20-30% to avoid too deep of a discharge and keep the ions a bit healthier. This phone charges too damn slow to keep it between 40-80 like most Android phones that charge so fast.
     
  22. BigMcGuire Contributor

    BigMcGuire

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    #22
    Plug the phone into a 2.4amp+ charger (Anker or iPad) - it will go a LOT faster than the 5w brick - if you have them.

    But yep yep - I have extreme OCD - I used to go nuts - now I'm much better. But after 2 phones over 4 years and keeping them plugged in all the time and having within 2-3% design capacity loss after 240+ cycles --- I don't worry bout it anymore.

    That and the battery trickle charges from 80-100% so it may be easier on the battery to do 90-100% trickle charging vs full bore below 80% charging.

    Yep, I just plug in whenever I want - I have wireless chargers at home/work and cables all over. Phone rarely sees below 95% unless I want it to. Been charging at my work computer's USB port for super slow charging - figure a little extra battery coddling can't hurt. :)
     
  23. tonybarnaby macrumors 6502a

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    #23
    You obviously know a battery is happiest between 50-60%, and the top and bottom extremes are the hardest. I figured charging to 80% isn't worth it in case I ever really need a lot of power. The upper limit seems less stressful than the lower limit in my research. Keeping it constantly charged seems counterproductive , but it's obviously working for you. You're not losing fractions of your battery from standby, but it's probably a bit more stressed to stay at 100% than it would be at 80%.
     
  24. BigMcGuire Contributor

    BigMcGuire

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    #24
    Definitely. I'll be 100% honest too. Days I know where I don't need my phone's battery, I'll let it drop to 50-80% and smile knowing I'm being a bit nicer than usual. Today is one of those days :). Both my watch and my phone are under 80% (sitting at around 70%). :)

    I imagine the battery would last significantly longer if I did that all the time.


    I love looking at this chart:

    http://batteryuniversity.com/index.php/learn/article/how_to_prolong_lithium_based_batteries

    [​IMG]
     
  25. tonybarnaby macrumors 6502a

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    Dec 3, 2017
    #25
    Lol my wife used to ridicule me for this stuff. A new battery is chump change (even full price of $79) so why I am I like this? I can buy a new battery in only a few hours worth of work, but I still look into it like a fiend.
     

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