Macbook Battery..

Discussion in 'MacBook' started by Peck02, Apr 10, 2009.

  1. Peck02 macrumors newbie

    Joined:
    Aug 17, 2007
    #1
    Hi guys,

    So I've ran into the problem recently where when my battery runs out (eg. my screen shuts off), the whole computer shuts off and I have to restart.. I know that this can be easily countered by using a power cord when the battery is low but sometimes it just creeps up on ya lol.. And it never did this before...

    Is there a setting that I accidently turned off where it would save my memory before turning off the power? Or..?
     
  2. KoolStar macrumors demi-god

    KoolStar

    Joined:
    Oct 16, 2006
    Location:
    Kentucky
    #2
    To me it sounds as if the battery is not properly conditioned. The computer should warn you if your battery is is on 10% power left in the battery. If it does not the battery could think it has more charge than it really does, or the battery could have a bad cell. Perhaps you should try recalibrating the battery.Apple Link. It that does not work it maybe time to visit the apple store.
     
  3. heySparky macrumors regular

    heySparky

    Joined:
    Mar 8, 2007
    Location:
    Oregon
    #3
    Don't you get any warning before the computer shuts off? You should.

    Do you have many cycles on the current battery? I didn't and had the same problem you describe. The Macbook would just shut off, now low battery warning at all. I took the MB to an Apple store and after describing the problem the genius just swapped out the old battery with a new one.
     
  4. Peck02 thread starter macrumors newbie

    Joined:
    Aug 17, 2007
    #4
    I usually get a warning but I find it abnormal that my session isnt being saved. Or is it normal?
     
  5. iLog.Genius macrumors 601

    iLog.Genius

    Joined:
    Feb 24, 2009
    Location:
    Toronto, Ontario
    #5
    Your session should be saved to memory if the battery runs out and should be restored on startup or boot.
     
  6. acarney macrumors 6502

    Joined:
    Jul 3, 2007
    #6
    I have this same problem, my MacBook will tell me it's down to like 10% and then I'll watch it drop down more and more and it'll never go into a deep sleep where it saves data to RAM, even if I'm not doing anything and just watching it. When I plug it in the only way it'll come back to life is if I hit the power button once and it boots from the start, NOT restoring from a saved state. It USED to save to RAM when it was new though...

    Battery is reporting 70% health, 3522mAh is it's max charge now after 192 load cycles and 20 months. Do you think just doing a few deep calibration runs will fix this or do you think it's just something that comes with aged batteries and I probably won't be able to get it back into the saving to deep sleep?
     
  7. flopticalcube macrumors G4

    flopticalcube

    Joined:
    Sep 7, 2006
    Location:
    In the velcro closure of America's Hat
    #7
    Try calibrating it. If that doesn't get the health above 80% take it to Apple. You may get a free replacement.
     
  8. acarney macrumors 6502

    Joined:
    Jul 3, 2007
    #8
    Even at 20 months and 191 charges? I don't have AppleCare and I'm well out of the range of buying AppleCare. The battery life is still pretty good, it's just that I wish I had that fall back where if I was out and about I could put it to a deep sleep before I got home or at least let it do it by its self. My closest AppleStore is about 3 hrs drive but I MAY be around one in a month or so, would it be worth my while to try and talk to them IN the store then (even though it's not really how I want to spend my free time in the city) or would calling an Apple store and talking to a rep probably get me to a point of either yes or no on the battery exchange?
     
  9. flopticalcube macrumors G4

    flopticalcube

    Joined:
    Sep 7, 2006
    Location:
    In the velcro closure of America's Hat
    #9
    AppleCare doesn't cover batteries anyhow. Its a long shot but why not.

    http://www.apple.com/batteries/notebooks.html

    Now you could argue that you have properly maintained it but the battery still died early. They may not give you a free on but you could get a few $ off the replacement.
     

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