MacBook Pro - 1 year old battery - are these values "normal"? Reply

Discussion in 'MacBook Pro' started by techmonkey, Jul 28, 2008.

  1. techmonkey macrumors 6502a

    Joined:
    Jun 8, 2007
    #1
    I checked my battery status with iStatPro.

    Health - 78%
    Cycles - 235
    Charge - 94%
    1:14 remaining

    Any suggestions?
     
  2. SpookyLars macrumors 6502

    Joined:
    Jul 21, 2008
    Location:
    Poland
    #2
    Maybe you should change the habits concerning the use of battery? ;)
    My battery (over one year) in iStat Pro:
    Health - 97%
    Cycles - 25
    Charge - 99%
    3:23 remaining
     
  3. Insulin Junkie macrumors 65816

    Insulin Junkie

    Joined:
    May 5, 2008
    Location:
    Mainland Europe
    #3
    But you only have 25 charge cycles! I have more than that and my battery health's still 100%.

    Considering techmonkey's battery has over 200 cycles. His statistics aren't out of the ordinary at all.
     
  4. techmonkey thread starter macrumors 6502a

    Joined:
    Jun 8, 2007
    #4
    wow, 25 charge cycles :O

    Do you keep your notebook plugged in all the time? I have mine plugged in most of the time since I leave it on my desk, but I unplug it whenever I move it to my living room or bedroom.

    What is considered a charge cycle, when it drains completely down and up again? What happens if I unplug it and move it to my living room, use it for about 20 min, then plug it in. When it charges back up will it be considered a charge cycle?

    I think somethings fishy about those stats considering its on my desk most of the time.
     
  5. SpookyLars macrumors 6502

    Joined:
    Jul 21, 2008
    Location:
    Poland
    #5
    True, but my battery is over year old... And yours?
     
  6. SpookyLars macrumors 6502

    Joined:
    Jul 21, 2008
    Location:
    Poland
    #6
    Yes, my MBP is almost always plugged in. But I unplug it overnight or when I leave my desk.

    Yes.

    Take a look here.
     
  7. xxMacAttackxx macrumors member

    xxMacAttackxx

    Joined:
    Jun 23, 2008
    Location:
    Chicago
    #7
    That should not be considered a charge cycle..

    Also to keep your battery in tip top condition, it is not good to have it ALWAYS plugged in. About twice a month you should let it drain completely to keep it at good health..
     
  8. techmonkey thread starter macrumors 6502a

    Joined:
    Jun 8, 2007
    #8
    So what is recommended if you keep your notebook on a desk most of the time? Ive read from other sources that leaving it plugged in is not good, but nobody ever says why or what you should do if you dont travel much.
     
  9. Mueslimonster macrumors newbie

    Joined:
    Jul 7, 2008
    Location:
    Germany
    #9
    Try to contact Apple Care and see if you can get an exchange. There's a programm for faulty MacBook/ Pro batteries.

    Apparently everything under 80% health (unofficially) and below 300 cycles is considered faulty.

    Got mine replaced today even though it was 9 months ouf of warranty. That being said mine is at 33% health and 230 cycles right now.

    Tim

    P.S. Have you installed all the latest updates and tried to recalibrate your battery?
     
  10. OllyW Moderator

    OllyW

    Staff Member

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    The Black Country, England
    #10
  11. Insulin Junkie macrumors 65816

    Insulin Junkie

    Joined:
    May 5, 2008
    Location:
    Mainland Europe
    #11
    Just under 4 months.
    I'm not sure, but I think that overall battery health has something to do with the amount of charge cycles it's been through. It would appear logical to me anyway.
     
  12. xxMacAttackxx macrumors member

    xxMacAttackxx

    Joined:
    Jun 23, 2008
    Location:
    Chicago
    #12
    Well when you have your machine plugged in, it is running completely off of the charger, so your battery just sits there with a full charge, then it drains a bit, so it then charges back up to full power, and this is just a continuous cycle, this just puts wear and tear on your battery reducing its maximum capacity.
     
  13. Fabiano macrumors regular

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    Jan 30, 2008
    Location:
    Palmas, Brazil
  14. xxMacAttackxx macrumors member

    xxMacAttackxx

    Joined:
    Jun 23, 2008
    Location:
    Chicago
    #14
    ignore this...
     

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