Why are my batteries dying so quickly?

Discussion in 'MacBook Pro' started by Gary King, Feb 25, 2008.

  1. Gary King macrumors 6502

    Joined:
    Jun 14, 2004
    #1
    I've only had 5 battery load cycles but my battery capacity is at 49% of the original? What the heck? After reading a few threads on these forums about this, I was seeing numbers like 500 load cycles in 12 months, etc. with 25% or so original battery capacity, so I don't know why my numbers look so off for me.
     

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  2. skiffx macrumors 6502a

    Joined:
    Feb 5, 2008
    #2
    Then just replace it, Im sure they will do it for free in any genius bar / apple store etc.
     
  3. hulugu macrumors 68000

    hulugu

    Joined:
    Aug 13, 2003
    Location:
    the faraway towns
    #3
    Coconut battery doesn't count load-cycles properly in Leopard.

    You might want to try getting data either from iStat or from the Apple System Profiler.
     
  4. Gary King thread starter macrumors 6502

    Joined:
    Jun 14, 2004
    #4
    I'll replace it if you are willing to buy me one of those $100 batteries.
     
  5. creator2456 macrumors 68000

    creator2456

    Joined:
    Jul 10, 2007
    Location:
    Chicago
    #5
    If your battery truly has only 5 cycles, Apple should replace no questions asked. Call them up and let them know your battery is in the toilet and you will most likely get a free replacement sent your way.
     
  6. Gary King thread starter macrumors 6502

    Joined:
    Jun 14, 2004
    #6
    Ah I didn't know that; I'll see what I can do.
     
  7. Consultant macrumors G5

    Consultant

    Joined:
    Jun 27, 2007
    #7
    Laptop batteries are designed to be used. If it's kept fully charged or fully discharged, the capacity will suffer.

    You need to run on battery power and drain it at least once a month.
     
  8. creator2456 macrumors 68000

    creator2456

    Joined:
    Jul 10, 2007
    Location:
    Chicago
    #8
    Somewhat true...but not completely. The first year of my MBPs life was spent almost exclusively on AC power (under 10 cycles). I gained about 100mAh of life over that time. Currently I am getting just over 6000mAh out of my battery (original stated by :apple: - 5500mAh).
     

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