Can you advise me what the deal is with my Macbook Pro battery please?

Discussion in 'MacBook Pro' started by ajdb9, Sep 5, 2009.

  1. ajdb9 macrumors member

    Joined:
    Oct 19, 2008
    #1
    Hi
    I have had the Macbook Pro 15" for about 12months now. CoconutBattery tells me that It is actually 15months old (I accept that, as I assume that is to manufacturing date). But, it also says I only have 30-40% of my original charging capacity left. I have noticed a large drop in battery time, and have never fully calibrated.
    I am calibrating as we speak. It never actually ran down to 0%, because it kept on randomly shutting off (without warning). I was able to reboot it a few times, but it switched off fully by itself for the 3rd time or so and refused to boot again (I assumed it was now as good as 0%). I am about to plug it in again. I have noticed this shutting off a number of times, including when I had an indicate 16%, and was about to save a page worth of document on Pages, only to lose it all as it randomly shut off.
    I am under warranty, is it reasonable to think this is a faulty battery? Or have I ruined it by not calibrating (something that is not clearly specified as necessary in the booklet)
    Thanks heaps
    Peace
     
  2. UNDERD0G macrumors newbie

    UNDERD0G

    Joined:
    Apr 9, 2009
    #2
    Take it to Apple

    There's no way that's your fault. Apple RECOMMENDS that you calibrate, and it is a good idea. However, if your macbook pro is randomly shutting off before your battery indicator hits 0% then have it looked at before your 12 months runs out! Good luck. :)
     
  3. ajdb9 thread starter macrumors member

    Joined:
    Oct 19, 2008
    #3
    Thanks man.
    Its like 3 days of 12 months, but gonna get AppleCare tomorrow, so all sweet :D
    Get it checked out.
    Thanks
     
  4. Z06jerry macrumors regular

    Joined:
    Feb 2, 2008
    Location:
    Ontario, Canada
    #4
    The extended Applecare warranty doesn't cover batteries, so you should get it looked at before your 12 months is up.
     
  5. miles01110 macrumors Core

    miles01110

    Joined:
    Jul 24, 2006
    Location:
    The Ivory Tower (I'm not coming down)
    #5
    It could be a dead cell. People with dead cells often have the same symptoms you describe re: random shut downs.
     
  6. ajdb9 thread starter macrumors member

    Joined:
    Oct 19, 2008
    #6
    Even obviously faulty ones? I can understand it not covering wear over time... but if it's faulty... surely it should cover it?
     
  7. ajdb9 thread starter macrumors member

    Joined:
    Oct 19, 2008
    #7
    Thankyou, Z06Jerry

    Listen to this guy! He clearly knows his stuff.
    I was one day out from my 1-year warranty expiring. Apple said that if I had gone tomorrow (1 day out of warranty), it would not have been covered (even with AppleCare), (and even tho it was a faulty battery). Thankyou for saving me NZ$300 or so, Mr Z06 Jerry.
    Thankyou to other respondants also. I am currently running without a battery - just plugged in (the MagSafe makes that slightly scary lol, easy to accidentaly disconnect) - and will have a new battery in a couple of days, free of charge (except petrol getting to the shop!)
    Thanks again,
    Peace.
     

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