MacBook Pro turns off if not plugged in?!?!?

Discussion in 'MacBook Pro' started by alwaysanita, Jan 19, 2010.

  1. alwaysanita macrumors newbie

    Joined:
    Jan 19, 2010
    #1
    I have had my MacBook Pro since May 2007. It has been working fine up until a few months ago.

    I will have nearly full, or fully battery and the computer will turn off, and will not turn back on unless I plug the charger in. If the charger is unplugged for 5 minutes, the computer completely shuts down. So basically I cannot use the computer unless it is plugged in. It is starting to become a pain because sometimes I need it when I am in a place without an outlet.

    Any suggestions? Thanks!
     
  2. P99 macrumors member

    Joined:
    Jul 9, 2009
  3. miles01110 macrumors Core

    miles01110

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    Jul 24, 2006
    Location:
    The Ivory Tower (I'm not coming down)
  4. alwaysanita thread starter macrumors newbie

    Joined:
    Jan 19, 2010
    #4
    Do you think it is just the battery? Is there a way to check?
     
  5. alwaysanita thread starter macrumors newbie

    Joined:
    Jan 19, 2010
    #5
    I took the battery out and pressed the button. All 5 green lights lit up.
     
  6. P99 macrumors member

    Joined:
    Jul 9, 2009
    #6
    have you done any calibration? AFAIK, battery % arent always accurate unless it is calibrated per apple's suggestion.

    "The battery needs to be recalibrated from time to time to keep the onscreen battery time and percent display accurate and to keep the battery operating at maximum efficiency. You should perform this procedure when you first use your computer and then every few months"

    http://support.apple.com/kb/HT1490
     
  7. TAJones99 macrumors member

    TAJones99

    Joined:
    Apr 26, 2009
    Location:
    Jacksonville, FL
    #7
    It has to be the battery if it works fine plugged in to the power source.
     
  8. alwaysanita thread starter macrumors newbie

    Joined:
    Jan 19, 2010
    #8
    I will try and calibrate it today. Will it work the same if I calibrate it in sleep mode? If I leave the computer on and use it while draining the battery, the computer will shut off before the battery drains...

    I did noticed something, when I click on the battery charge icon in the top right of the screen, it says

    "Replace Now"
    Battery Charged
    Power Source: Adapter

    So I guess if the calibration doesn't work then I am getting a new battery. Hopefully that will fix it.

    Thanks for all the help!
     
  9. TAJones99 macrumors member

    TAJones99

    Joined:
    Apr 26, 2009
    Location:
    Jacksonville, FL
    #9
    If the replace message is there you just might just need a new battery check out amazon before you go to the apple store to buy one unless you still have applecare then it will be replaced for free.
     
  10. RITZFit macrumors 65816

    RITZFit

    Joined:
    Sep 16, 2007
    Location:
    In my Corner
    #10
    have you checked you "full charge capacity" under "power" in the system profiler? new they're supposed to be around 5500 mAh
     
  11. moel macrumors 6502

    Joined:
    Nov 7, 2007
    #11
    It's the battery.

    <Gregory House accent on>

    More specifically it's a 2 year old battery that you've used pretty much every day without fail and ripped through the 500 odd good cycles a Li-Ion battery has.

    <Gregory House accent off>
     

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