Am I Doing Something Wrong?

Discussion in 'MacBook Pro' started by NiGoosHii, Sep 12, 2010.

  1. NiGoosHii macrumors newbie

    Joined:
    Jul 19, 2010
    #1
    Alright so i have my macbook pro for 4 months now , and my battery health is 97% ??

    Coconut Battery:

    97%
    6755/6900 mAh
    19 Load cycles
    4 Months old

    iStat Pro:

    98%
    19 Cycles

    Am i doing something wrong?? i just calibrated my battery -->

    1- Fully drain battery w/usage
    2- Fully charge battery - no usage
    3- Keep charging when full for 2 hours
    4- Use

    Laptop was in box for 2 months, only been using for 2 other months
    Am i doing something wrong?
     
  2. revelated macrumors 6502a

    revelated

    Joined:
    Jun 30, 2010
    #2
    Are you sure that's a Pro? 2010 Pro? That mAh seems rather low. My 17" is reporting (Watts) 13000 original capacity, 12674 current capacity, for 97% capacity after 60 charge cycles.
     
  3. NiGoosHii thread starter macrumors newbie

    Joined:
    Jul 19, 2010
    #3
    Those were the numbers i got from coconut battery
    Also when i charged the laptop fully and used for 2 hours, battery full is 99% ?
     
  4. revelated macrumors 6502a

    revelated

    Joined:
    Jun 30, 2010
    #4
    I'd download Watts and just verify that mAh. That just seems mighty low for a Pro. Worst case you might have Apple verify the battery's in good health.
     
  5. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #5
    Those aren't the steps for calibration.

    This should answer most, if not all, of your battery questions: Apple Notebook Battery FAQ
     
  6. BigBeast macrumors 6502a

    Joined:
    Mar 6, 2009
    #6
    Like the poster said above, that's not how you calibrate the battery.

    Also, know that the percentages are estimates and can actually go up and down. 97% or 98% is fine. Stop worrying.
     
  7. chrono1081 macrumors 604

    chrono1081

    Joined:
    Jan 26, 2008
    Location:
    Isla Nublar
    #7
    +1. Battery monitors are only an estimate. There is never a way to determine a batteries health that is 100% accurate. Anyone who tells you otherwise doesn't know what they are talking about.
     
  8. NiGoosHii thread starter macrumors newbie

    Joined:
    Jul 19, 2010
    #8
    "After your computer goes to sleep, turn it off"

    How can i turn it off when it's in sleep mode ?
     
  9. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #9
    By pressing the power button. It's not necessary. Just let it sleep for 5 hours or more. It will shut down on its own.

    Also, remember step 2, before you unplug and allow it to drain:
     
  10. NiGoosHii thread starter macrumors newbie

    Joined:
    Jul 19, 2010
    #10
    5 hours is too much, i use my laptop frequently
     
  11. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #11
    Do it overnight. If you want to calibrate it correctly, there's no other way.
     
  12. NiGoosHii thread starter macrumors newbie

    Joined:
    Jul 19, 2010
    #12
    So i drain it, it sleeps, i leave it when i sleep, i plug and use?
     
  13. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #13
    The steps are quite clear. Did you read the link I posted?
     
  14. NiGoosHii thread starter macrumors newbie

    Joined:
    Jul 19, 2010
    #14
    I did

    just one question:

    When im draining the battery, the computer goes to sleep right.
    Can i switch the laptop back on and continue draining the 5% left until it's 0 ? or do i have to wait 5 hours until it shuts down by itself
     
  15. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #15
    Once it drains to the point where it sleeps, it's likely that it won't turn back on, but you can try. Either way, you still have to wait 5 hours.
     
  16. Constantine1337 macrumors 6502

    Joined:
    Dec 3, 2009
    #16
    [​IMG]
    Thats my battery. Don't worry, battery health will vary between 90-100%. If it gets under 90% you should get worried, until then, its no problemo hose!
     
  17. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #17
    You mean under 80%.
     
  18. Constantine1337 macrumors 6502

    Joined:
    Dec 3, 2009
    #18
    Yes! :D
     
  19. alphaod macrumors Core

    alphaod

    Joined:
    Feb 9, 2008
    Location:
    NYC
    #19
    Get a little app called 'Caffeine'

    It forces your computer to never sleep. Save your work, back up your data, and let it run on just the battery. With 'Caffeine' enabled, even when the battery charge reaches 1% it will not sleep. When the battery dies, the power will just cut off and your computer will shut off (from loss of power). Leave it like that overnight. Then charge it to 100% in the morning and leave it charged for about 2 hours after it reaches 100%. This last step means you leave it on the charger even if it says it has stopped charging.

    Then use the computer how you like.

    Finally 97% is pretty good. That's health my battery was in when I bought it.

    Disclaimer: I am not liable if you lose any data or damage to your computer after following the steps I provided. Follow at your own risk. Always back up your data.
     
  20. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #20
    I agree! Great little app! Also, it's fine if you use your Mac while it's draining (save your work when the remaining charge gets low), and while it's recharging.

    That's actually the 2nd step. This needs to be done before the battery is drained, not after.
    The last step is:
     

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