Battery Health Checkup! 400 cycles in.

Discussion in 'MacBook' started by billyjoegibsonx, Jul 31, 2010.

  1. billyjoegibsonx macrumors 6502

    Sep 10, 2008
    Hey guys,

    I don't actually have any problems with my macbook battery but was just wondering if my battery life is normal.

    I'm using a Macbook5,1 (late 2008 aluminium unibody macbook. not pro)

    and under iStat I'm getting:
    Health: 93%
    Cycles: 400

    and under system profiler (I know it says condition is normal :p) I'm getting:

    Model Information:
    Serial Number: 6N837F3U13CB
    Manufacturer: SMP
    Device name: bq20z951
    Pack Lot Code: 0000
    PCB Lot Code: 0000
    Firmware Version: 002a
    Hardware Revision: 000a
    Cell Revision: 0100
    Charge Information:
    Charge remaining (mAh): 3789
    Fully charged: No
    Charging: Yes
    Full charge capacity (mAh): 3828
    Health Information:
    Cycle count: 400
    Condition: Normal
    Battery Installed: Yes
    Amperage (mA): 205
    Voltage (mV): 12558

    Was just wondering if this is healthy statistics for a 21 month old battery :)

  2. spinnerlys Guest


    Sep 7, 2008
    forlod bygningen
    That's a good health for 400 cycles and that battery.

    I have a white 2008 MB with 216 cycles and it has "only" 91% health.
  3. wbe858 macrumors member

    Jul 30, 2008
    Greensboro, NC
    I have an Late 08 Macbook Pro with 477 cycles and 98% health. Still holds as long as a charge as when i got it.
  4. billyjoegibsonx thread starter macrumors 6502

    Sep 10, 2008
    Ahh good! I had stopped using my Macbook all the time since i got my iPad :eek: and when i checked the battery it was away down to 88% but a good calibration brought it back up to 95% but it keeps going between 93%-95%

    Oh really? I take it youve calibrated and reset SMC? :eek:

    I hope my battery lasts another 2 years or more, which is when i'll start thinking about a computer upgrade :) i love my macbook :D i don't need no stinking i3/5/7 processors :cool: jkjk.
  5. applefriend2008 macrumors member

    Oct 11, 2008
  6. maril1111 macrumors 68000


    Mar 14, 2010
  7. Krayola macrumors newbie

    Apr 22, 2008
    2008 macbook aluminum

    456 cycles, 95%, 27 months old, 3915mAh. Frequently used on and off the cord.
  8. msjones macrumors 6502


    Oct 18, 2007
    Nottinghamshire, UK
    I have mid 2009 MacBook and it has 152 cycles but my health goes up and down between 84-89%.

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