MBP Battery -- will they replace & what should I be doing differently?

Discussion in 'MacBook Pro' started by thebassoonist, Aug 25, 2008.

  1. thebassoonist macrumors 6502a


    Sep 25, 2007
    Davis, CA
    Hi! First of the "batt," here's the info:

    Battery Information:

    Model Information:
    Serial Number: Sony-ASMB012-372d-9c4a
    Manufacturer: Sony
    Device name: ASMB012
    Pack Lot Code: 0003
    PCB Lot Code: 0000
    Firmware Version: 102a
    Hardware Revision: 0500
    Cell Revision: 0303
    Charge Information:
    Charge remaining (mAh): 3053
    Fully charged: No
    Charging: No
    Full charge capacity (mAh): 3334
    Health Information:
    Cycle count: 208
    Condition: Check battery
    Battery Installed: Yes
    Amperage (mA): -1746
    Voltage (mV): 11904

    I've had my MBP since October and I am pretty shocked at the decrease in battery life. I never leave it plugged in except to charge. I need to have it have at least 3 hours of battery life for my classes. *Sigh*

    I'm going to take it to the Apple specialists at my Uni. Do you think they'll replace it?

    Should I leave it plugged in more often? I try to calibrate it once a month, should I do it more often?

  2. rolex54 macrumors 6502

    Aug 20, 2007
    Houston, TX
    yes, you definitely need to leave it plugged in as much as possible, just bring your charger with you with your laptop bag, and where you work, look for a plug first
    As for the replacement, they may or they may not
    Just make sure to cycle the battery completely at least once a month
  3. jtus macrumors member

    Jul 12, 2007
    If it is under a year old they will replace it.
  4. hari-bhari macrumors regular

    Jul 4, 2007
    i totally disagree. i discharge and charge my battery at least once a day, sometimes twice a day. i did this on my old laptop for 5 years, and the battery capacity was still about 85-90% at the end of that time. my previous macbook, which i had for almost exactly 1 year, i followed the same procedure and the battery capacity went UP a few percent. make sure then when u charge and discharge you do a full cycle whenever possible. i am pretty anal about it and it has served me well.
  5. hari-bhari macrumors regular

    Jul 4, 2007
    by the way, they should replace it. been under a year and 300 cycles. i bet it was just defective based on your explanation of use.
  6. Tweak3D macrumors regular

    Jul 17, 2007
    he is over 200 cycles and I doubt apple will do anything. Hell, I am having a hard time trying to get them to replace a 6 month old battery that was a replacement for a defective battery which has 38 cycles and 5% health (about 8 minutes of useage on battery power).

    The wording on apples battery page says you should be able to get UP TO 300 cycles and 80% health not that if you don't its defective. You can try, but I have a feeling its going to be an uphill battle.

  7. thebassoonist thread starter macrumors 6502a


    Sep 25, 2007
    Davis, CA
    I hear both things -- always have it plugged in, or try to not leave it plugged in. Ugh.

    Thankfully, they took it in and will replace it. Good old campus computer services. :)
  8. jag00 macrumors newbie

    Dec 21, 2007
    New York

  9. glassmen07 macrumors member

    Mar 23, 2008
    I believe the book that came with my MBP or a Genius told me to drain it down to like 60% if you wont be using it for an extended period of time. You shouldn't leave the battery in there all the time though, doing that killed my first battery, but I was under warranty so Apple gave me another. My battery went from 3 1/2 hours to 20 minutes in less than a year leaving it in.
  10. thebassoonist thread starter macrumors 6502a


    Sep 25, 2007
    Davis, CA
    Do you mean draining it to 60% and removing it from the computer?
  11. glassmen07 macrumors member

    Mar 23, 2008
    Yeah that's what I mean.. though it could have been 30%... I don't know why I can't remember and my books aren't at school for me to look at. I'm sure Apple's site has better information on it.

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