8 month old MBP @83% battery health

Discussion in 'MacBook Pro' started by cluthz, Mar 16, 2008.

  1. cluthz macrumors 68040

    cluthz

    Joined:
    Jun 15, 2004
    Location:
    Norway
    #1
    I really haven't checked the health of my battery in awhile and i was shocked that the battery only held 83% of it's max capacity, only 8 months after I bougth the computer. I've noticed lately that my computer doesnt last as long as before.

    Both iStat and Coconut reports 83% battery health (4602 mAh of 5500 on max capacity)
    I'm on my 160th cycle now, which should be normal since I use my computer daily.

    As far as I remember my Powerbook G4 was on aprox 85% after almost two years of use, and now i'm scared that my MBP shouldn't even last a university lecture in a few months..

    Is this normal or should I try get a replacement from apple?

    Thanks in advance
     
  2. deadpixels macrumors 6502a

    deadpixels

    Joined:
    Oct 30, 2006
    #2
    i don't know if your battery is bad or not but mine is about a year old with 88 cycles and 87% health.
     
  3. sjb macrumors regular

    Joined:
    Jul 3, 2007
    #3
    Have you tried calibrating the battery? It's not only good for the battery itself, but it'll make the measurements within the OS more accurate.
     
  4. landis macrumors regular

    Joined:
    Apr 9, 2007
    Location:
    Toronto/Kingston Canada
    #4
    176 cycles, 86%

    it doesn't matter how old it is, more how many times it has been charged.

    the OP's battery is actually doing better than the second poster
     
  5. djejrejk macrumors 6502a

    djejrejk

    Joined:
    Jan 3, 2007
    Location:
    Uhh...
    #5
    Agreed, mine dropped to 62%, but after I calibrated I'm back up to 89%. If you calibrate every 2-4 weeks, you will get much more life out of your battery.
     
  6. eyespii macrumors 6502

    Joined:
    Mar 8, 2008
  7. ucsdmac macrumors 6502

    ucsdmac

    Joined:
    Jan 28, 2008
    #7

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