battery question

Discussion in 'Mac Basics and Help' started by xtn, Aug 16, 2007.

  1. xtn macrumors regular

    Joined:
    Apr 30, 2007
    Location:
    Los Angeles, CA
    #1
    hey guys,

    i was wondering if anyone else is having this problem. my battery will get to 39% or so and suddenly it will be fully depleted and shut down on me. i've noticed this happens a lot when my fans are running around 3-4000 rpms. i thought it was just a fluke, but its been happening more and more and is getting quite frustrating. thanks for any help!
     
  2. flopticalcube macrumors G4

    flopticalcube

    Joined:
    Sep 7, 2006
    Location:
    In the velcro closure of America's Hat
  3. devman macrumors 65816

    devman

    Joined:
    Apr 19, 2004
    Location:
    AU
    #3
    what machine do you have? how old is the battery? run system profiler and tell us what the battery stats are.
     
  4. xtn thread starter macrumors regular

    Joined:
    Apr 30, 2007
    Location:
    Los Angeles, CA
    #4
    MBP 2.16 GHz Intel Core Duo

    Batter stats:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 4856
    Remaining Capacity (mAh): 4841
    Amperage (mA): 178
    Voltage (mV): 12610
    Cycle Count: 248

    I'm know I calibrated it as soon as I got it, which was over a year ago.
     
  5. xtn thread starter macrumors regular

    Joined:
    Apr 30, 2007
    Location:
    Los Angeles, CA
  6. pilotkid macrumors 6502a

    Joined:
    Aug 22, 2006
    Location:
    Chandler, AZ/Chicago, IL
    #6
    I do but mine happens at like 8-10% and I tried calibrating my battery (isnt what where you let it run down tell it turns it self off then you let it fully charge?) but it just did it the other night again, so I'm thinking it might just be getting old. According to coconut it only goes to 79% of its capacity now and its got 269 cycles on it and its just about a year old.
     
  7. CalBoy macrumors 604

    CalBoy

    Joined:
    May 21, 2007
    #7
    Wait, so you haven't calibrated it since? You should do it once a month. Try calibrating again and tell us what happens.
     
  8. xtn thread starter macrumors regular

    Joined:
    Apr 30, 2007
    Location:
    Los Angeles, CA
    #9
    sorry, i thought calibrating a battery when you first get it (b/c batteries have a memory) and depleting it once a month were two different things. but yes i do calibrate my MBP once a month, but the thing is still shutting down on me. iStat tells me me that it's health is 87% and it has 248 cycles.
     
  9. CalBoy macrumors 604

    CalBoy

    Joined:
    May 21, 2007
    #10
    Hmm. I think this is a case where Apple owes you a new battery. Call them and explain the situation, along with the fact that you've been calibrating. A battery shouldn't jump from 35% to 0% in one minute.
     
  10. xtn thread starter macrumors regular

    Joined:
    Apr 30, 2007
    Location:
    Los Angeles, CA
    #11
    Thanks guys.

    CalBoy, I used your recommendation and gave Apple a call. After 40 minutes of diagnostic check ups, they decided to send me a new battery free of charge so I have no complaints!

    Thanks for all your help!
     
  11. CalBoy macrumors 604

    CalBoy

    Joined:
    May 21, 2007
    #12
    I'm glad Apple didn't give you any trouble. I hope it all works out for you.:)
     
  12. sbluetruck macrumors regular

    sbluetruck

    Joined:
    Jul 25, 2007
    Location:
    Wisconsin der hey
    #13
  13. CalBoy macrumors 604

    CalBoy

    Joined:
    May 21, 2007
    #14
    I think you're a few hours late;)
     

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