FYI: iPad battery lasts >1000 full charge cycles

Discussion in 'iPad' started by doboy, Mar 18, 2012.

  1. doboy macrumors 68000

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    Jul 6, 2007
    #1
    http://www.apple.com/batteries/ipad.html

    "Charge Cycles3
    A properly maintained iPad battery is designed to retain up to 80% of its original capacity at 1000 full charge and discharge cycles. You may choose to replace your battery when it no longer holds sufficient charge to meet your needs."

    Somehow, I always thought it was 200 full cycles. Maybe that was just my old MacBook Pro battery. :eek:
     
  2. Enjoylife1788 macrumors 6502a

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    Aug 22, 2011
    #2
    It's 400 cycles for iPhone.. iPad and MacBook are 1000 cycles.
     
  3. doboy thread starter macrumors 68000

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    #3
    I wonder if it was 1000 cycles for the original iPad. I have all 3 generations of iPads and never knew this. :p
     
  4. aypues macrumors regular

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    San Diego
    #4
    I believe it. My original iPad still holds a charge great!
     
  5. doboy thread starter macrumors 68000

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    #5
    Exactly. Even after 2 years.
     
  6. DS3 macrumors 6502a

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    #6
    Yeah I noticed no difference on my iPad 2 after a year of heavy use. I assume there was a slight drop but I was pleased.
     
  7. davenz macrumors regular

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    Jul 19, 2008
    #7
    My macbook has 831 charges and still lasts as long as when i got it.
     
  8. TauntingBull macrumors newbie

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    Jun 10, 2012
    #8
    I'm new to apple, so please excuse my ignorance....

    Questions:

    1. What is defined as a "Charge Cycle" for iPad 3?
    2. Is battery calibration needed on the iPad 3?
     
  9. Rodster macrumors 68040

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    May 15, 2007
    #9
    Can you damage the battery if you leave it plugged in at 100% charge? :confused:
     
  10. Enlightenment1 macrumors regular

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    #10
    Thanks for this. You learn something new every day :)
     
  11. iAmYou macrumors 6502

    iAmYou

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    Jun 29, 2010
    #11
    A charge cycle is 100% to 0% then 0% to 100% = 1 cycle
    or combination of discharges and recharges.
    use 50% then charge to 100% and Use to 50% and charge to 100% = 1 cycle
    and so on.

    Battery calibration is only needed to synchronize battery and battery meter.


    No it will not damage the battery, but that being said it is better to use the battery a little bit to keep it in good health.
     
  12. Pressure macrumors 68040

    Pressure

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    Denmark
    #12
    It's Lithium-ion Polymer batteries, not some great unknown heh.

    They will hold 80% charge after two years unless their charge cycles have been reached.
     
  13. Rodster macrumors 68040

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    May 15, 2007
    #13
    Thanks for the info but I always thought a charge cycle = a battery charge regardless of whether the battery level was at 20/50/95% :confused:
     
  14. -TYLER macrumors regular

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    Jun 4, 2012
    #14
    Nope, that is why it is called a 'cycle'
     
  15. Menneisyys2 macrumors 603

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    Jun 7, 2011
    #15
    And we DO need as many cycles as possible. My iPad 3, purchased on 03/23 (the day it arrived in Finland), is already at the 60th power cycle. (Displayed by Cydia-based BatteryDetective. For comparison, my iPad 2 purchased over a year ago and used as much as my iPad 3 is only at around 180 cycles.

    This all means the battery of our iPad 3's will die on us a lot earlier than the batteries of earlier iPad models.

    ----------

    Surely it doesn't - prolly you just didn't notice the difference. It's at least 15%.
     
  16. TauntingBull macrumors newbie

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    Jun 10, 2012
    #16
    So where do I find out how many charge cycles have I used? I looked all over the general settings but couldn't find it anywhere....
     
  17. filmbuff macrumors 6502a

    filmbuff

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    Jan 5, 2011
    #17
    I don't know how many charge cycles my iPad has but I've had it for a year and a half, using it every day, and no sign of trouble from the battery. I remember reading that the battery is good for 1000 charge cycles on Apple's website when I got it. I estimated 3 years of use before needing a replacement, but I will probably be ready to buy an iPad 5 by then anyway :D
     
  18. Menneisyys2 macrumors 603

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    #18
    I don't think its cycle count is over 200-300. Neither is mine (have used it for several hours a day) - see my prev post on comparing the typical cycle counts for iPad 1/2 and 3.
     
  19. SSpiro macrumors 6502a

    SSpiro

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  20. doboy thread starter macrumors 68000

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    #20
    Yes, by Apple. It's not user serviceable unless you really want to try. ;)
     
  21. Intell macrumors P6

    Intell

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    #21
    My launch day 3Gs is at about 750 cycles and still holding about 91% of its original capacity.
     
  22. mr-marvin macrumors newbie

    mr-marvin

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    #22
    I've charged it around 650 cycles and its still working like its brand new.
     
  23. Menneisyys2 macrumors 603

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    Jun 7, 2011
    #23
    You're lucky. My 3GS is at cycle count 541, and the battery only holds 81% (981/1200 mAh) of the (original) charge.

    ----------

    The number of charges (that is, the number of imes you've put the iPad on charger) doesn't equal the cycle count. I don't think yours is over 400 either.
     
  24. SSpiro macrumors 6502a

    SSpiro

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    Atlanta, GA
    #24
    Nope, but just happy its serviceable.
     
  25. arcite macrumors 6502a

    arcite

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    Location:
    Cairo, trapped in a pyramid with my iphone
    #25
    My macbook pro is over 500 cycles now and its battery health goes between 86-90%. Not bad.
     

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