iStat Nano says my battery health is %48... What does this mean?

Discussion in 'MacBook Pro' started by SamIchi, Apr 12, 2007.

  1. SamIchi macrumors 68030

    SamIchi

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    Aug 1, 2004
    #1
    Can it only hold half the capacity that it used to hold when it was new?
     
  2. Bill Gates macrumors 68020

    Bill Gates

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    #2
    According to iStat, yes. How old is the battery, and when was it last calibrated?
     
  3. SamIchi thread starter macrumors 68030

    SamIchi

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    Aug 1, 2004
    #3
    It's almost been a year, and I've never calibrated... I don't think. I never knew you were supposed to calibrate :confused:
     
  4. Bill Gates macrumors 68020

    Bill Gates

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    #4
  5. SamIchi thread starter macrumors 68030

    SamIchi

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    #5
    Hmm from what I've read, I think I've done this a few times without the actual intent. I've had it charged and then taken off the power adapter, Then after I'm done using it I set it back on my desk and forget to connect the power adapter. Next morning I wake up and reconnect the power supply and it wakes up. I've done this a few times.... Did I do sumthin' wrong? Do I need to quit all programs?

    Thanks for all the help! :)
     
  6. Bill Gates macrumors 68020

    Bill Gates

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    #6
    Unless the battery was fully discharged- i.e. the computer went to sleep because it had to, it wasn't calibrated. It may have just gone to sleep because of the energy scheme.
     
  7. SamIchi thread starter macrumors 68030

    SamIchi

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    #7
    I defenitely went to sleep cause it was discharged because I have azureus running and my computer never goes to sleep unless it has to (ie: completely discharged)
     
  8. Bill Gates macrumors 68020

    Bill Gates

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    #8
    In that case it was indeed calibrated. Your battery simply isn't the best pick. However, I would try calibrating it again if it's been a few weeks.
     
  9. SamIchi thread starter macrumors 68030

    SamIchi

    Joined:
    Aug 1, 2004
    #9
    Hmm I'm pretty sure this happened a few days ago. Oh well... I dont use it off the power all that often, and it's usually at home. Thanks for all the help :D
     
  10. holamiamigos macrumors 6502a

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