Aluminum Macbook battery question?

Discussion in 'MacBook' started by ABEAR, Jun 29, 2009.

  1. ABEAR macrumors newbie

    ABEAR

    Joined:
    Jun 23, 2009
    #1
    I have a aluminum macbook that I got in January of this year, it has 131 cycles on it, and a health of 90%.

    Is that good?
     
  2. iLog.Genius macrumors 601

    iLog.Genius

    Joined:
    Feb 24, 2009
    Location:
    Toronto, Ontario
    #2
    That should be on par. Basically what you don't want is 80% health before you reach 300 cycles.
     
  3. Anonymous Freak macrumors 601

    Anonymous Freak

    Joined:
    Dec 12, 2002
    Location:
    Cascadia
    #3
    Very good.

    I'm on the fifth battery of my MacBook Pro (first generation,) and at 63 cycles, the battery is at 76% health (or, according to the System Profiler "Check Battery".)
     
  4. jmann macrumors 604

    jmann

    Joined:
    Dec 8, 2007
    Location:
    bump on a log in a hole in the bottom of the sea
    #4
    Mine is from February. I have 98 cycles and it's at 99% health.
     
  5. ABEAR thread starter macrumors newbie

    ABEAR

    Joined:
    Jun 23, 2009
    #5
    Wow, see that's what I think my health should be around, what determines battery health?
     
  6. ref26 macrumors 6502a

    ref26

    Joined:
    Mar 13, 2008
    #6
    My Blackbook from March of last year has 222 cycles and istat still says 100% health...
     
  7. ABEAR thread starter macrumors newbie

    ABEAR

    Joined:
    Jun 23, 2009
    #7


    Ok, I don't understand why my health is so low then?
     
  8. miles01110 macrumors Core

    miles01110

    Joined:
    Jul 24, 2006
    Location:
    The Ivory Tower (I'm not coming down)
    #8
    Because the ability to hold capacity is a little different from unit to unit. Yours is well within spec at the moment, ref26 got very lucky and has an unusually resilient battery.

    Stop worrying about your battery capacity and just use it. If it starts to drop dramatically then you have a problem.
     
  9. Geoff. macrumors 6502

    Geoff.

    Joined:
    Jun 1, 2009
    #9
    Thats terrible. I taught apple has to replace it if its under 80 % in less than 300 cycles?
     
  10. MarkMissoula macrumors member

    Joined:
    Nov 15, 2008
  11. holden15 macrumors member

    Joined:
    Sep 8, 2008
    Location:
    Austin, TX
    #11
    Unibody MacBook. Purchased in March.

    Charge Information:
    Charge remaining (mAh): 4150
    Fully charged: No
    Charging: Yes
    Full charge capacity (mAh): 4290
    Health Information:
    Cycle count: 19
    Condition: Good
    Battery Installed: Yes
    Amperage (mA): 408
    Voltage (mV): 12513
     
  12. SteveMobs macrumors 6502

    SteveMobs

    Joined:
    Dec 10, 2008
    Location:
    Washington D.C.
  13. STSNorthstar macrumors regular

    Joined:
    Sep 17, 2008
  14. P Mentior macrumors regular

    Joined:
    Sep 20, 2008
    Location:
    Ohio
    #14
    Try CoconutBattery or you could just divide the max charge by the battery's rated charge (look online for this as it is dependent on what model you have)
     
  15. morrisman1 macrumors 6502

    #15
    Im on 90 cycles and 98%.

    Its only dipped since I stopped using it on battery most of the time. I now have to go out of my way to use it on battery just because I dont have the opportunity (no wifi and in a small room, it doesnt need to move).

    On the other hand, the old white macbook that i used to have which is still in the family is sitting on 99% and its done 154 cycles. That gets used on its battery a lot more.

    A friend of mine has an earlier macbook and she uses it almost only on the battery. Its about to clock over 500 cycles and its still at over 100% capacity.
     
  16. Zazoh macrumors 6502a

    Zazoh

    Joined:
    Jan 4, 2009
    Location:
    Mico, Texas
    #16
    Something aint right. Do you use the battery alot without taking it all the way down?
     
  17. crackbookpro macrumors 65816

    crackbookpro

    Joined:
    Feb 25, 2009
    Location:
    Om nom nom nom
    #17
    I got mine in February too. Coconut battery is saying 99% with 178 cycles.

    OP, I wouldn't be concerned, but then again I would keep it in the back of my head. It is too early to say, but seeing that you have 90% in under 150 cycles - that could raise an eyebrow...

    CrackBookPro:cool:
     
  18. STSNorthstar macrumors regular

    Joined:
    Sep 17, 2008
    #18
    4117/4500 at 161 charges, 91.5% System was bought new in feb, but was manufactured around November I think.
     

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