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Mac Shuts Off After Battery Dies

3277 Views 34 Replies Latest reply: Jun 23, 2006 7:01 PM by Mikey Rogers RSS
  • labmouse vs mightytiger Level 2 Level 2 (280 points)
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    May 14, 2006 3:21 PM (in response to Mikey Rogers)
    As a test, I went ahead and removed my battery with
    my Mac on. Placed it back in, and I had to turn it
    back on.



    Try it this way: put the MBP to sleep using power button, after it starts to snore, remove the battery, it should go into deep sleep. And then replace it. Then push the button, it should wake up from deep sleep with the grey screen and everything.

    Also, you may want to check the hibernation mode. Open a Terminal shell and type pmset -g live. From the list, check the hibernatemode. 3 means normal sleep, 0 means hibernation is turned off, 3 means deep sleep.
    MacBookPro 1.83 GHz, 1gig, @5400 RPM, Mac OS X (10.4.6), iBook G4
  • labmouse vs mightytiger Level 2 Level 2 (280 points)
    Currently Being Moderated
    May 14, 2006 9:09 PM (in response to Mikey Rogers)
    I see on profile that battery power is 0, AC power is 3. Try to set both to -1.

    Open a terminal window and type sudo pmset -a battery power -1
    It will ask your password, type it and hit enter. Then let's see what happens.
    MacBookPro 1.83 GHz, 1gig, @5400 RPM, Mac OS X (10.4.6), iBook G4
  • labmouse vs mightytiger Level 2 Level 2 (280 points)
    Currently Being Moderated
    May 14, 2006 9:38 PM (in response to Mikey Rogers)
    I think your computer is 'safe sleep' enabled, but your battery power is set to 0. On mine both powers are set to -1. Apperently your battery runs down to a point (=0) that it can't find the time to go to deep sleep and simply shuts down.

    I checked my post and unfortunately it doesn't work as I described. I'm not sure there is an 'argument' to write after sudo pmset -a command (which you use change some settings).

    Alternatively, if you haven't tried it yet, you can reset the NVRAM (turn off your computer, hold cmdopt+PR when you restart it).

    Good luck..
    MacBookPro 1.83 GHz, 1gig, @5400 RPM, Mac OS X (10.4.6), iBook G4
  • MBPdoc Level 1 Level 1 (10 points)
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    May 15, 2006 6:55 AM (in response to labmouse vs mightytiger)
    Its definitely the battery. I am still waiting for my replacement which should come in 2 days. Kudos to Applecare for this. But I just noticed something interesting. The battery has a 3mm bulge on one side!! Anyone else notice this?
    MBP, Mac OS X (10.4.6)
  • Tim Lorenzen Level 4 Level 4 (1,895 points)
    Currently Being Moderated
    May 15, 2006 11:56 AM (in response to MBPdoc)
    No bulge on my battery. I'd say there is something wrong with it, and unless the bulge was there in the first place, I wouldn't use it anymore... just to be safe.
    iMac Core Duo 20"; Cinema Display 20"; MacBook Pro 15" 2.0 GHz, Mac OS X (10.4.6)
  • MBPdoc Level 1 Level 1 (10 points)
    Currently Being Moderated
    May 15, 2006 9:52 PM (in response to Mikey Rogers)
    Battery, replaced problem solved...for now. Hopefully it won't happen again in 2 months.....
    MBP, Mac OS X (10.4.6)
  • elearn Calculating status...
    Currently Being Moderated
    May 16, 2006 2:41 AM (in response to Mikey Rogers)
    Uh oh.

    Yesterday evening my mbp developed a problem. The computer shuts off without warning. It acts as though the battery was dead. The first time it happened the charge was reported as 48% when it shut off without warning. Tonight it's dying at 71%.

    I'm calling tech support tomorrow to see about a battery replacement.
    mbp 15", Mac OS X (10.4.6)
  • steve n. Calculating status...
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    May 16, 2006 4:36 AM (in response to labmouse vs mightytiger)
    On mine both powers are set to -1


    Those represent your choices in the Energy Saver System Preferences. -1 means you have selected "Custom" settings for both battery and power. 0 means he has "Better Battery Life" selected for the Battery and the 3 means he has "Better Performance" set for Power Adapter.

    "man pmset" does not show a way to change these via the command-line but it still may be possible.
    MBP 1.83, Mac OS X (10.4.6)
  • MBPdoc Level 1 Level 1 (10 points)
    Currently Being Moderated
    May 16, 2006 8:16 AM (in response to elearn)
    Update:

    New battery completely resolves the problem . MBP shuts down now at 0% after warning at 8%. So I can attest this seems to be a purely battery induced problem and not with the notebook
    MBP, Mac OS X (10.4.6)
  • Hradec Calculating status...
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    May 16, 2006 9:50 AM (in response to Mikey Rogers)
    Same problem here... I received mine exactly 2 months ago... and yesterday It started to just power off whitout any warning at 30-50% of the battery...

    Funny thing... today it did that about 1 hour ago... shut off with 32% of the battery... I wait a few moments and the I tried to power on whitout conect the power cord... and It works... it power on again at 30% of battery... then it stays up for about 5 minutes... and the shut off again...

    I did the PMU reset... nothing... still doing that...

    I gonna contact apple about a battery replacement...
    Macbook Pro 1.83ghz 1GB ram, Mac OS X (10.4.6)
  • Sensei_V Calculating status...
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    May 16, 2006 5:38 PM (in response to MBPdoc)
    Its definitely the battery. I am still waiting for my
    replacement which should come in 2 days. Kudos to
    Applecare for this. But I just noticed something
    interesting. The battery has a 3mm bulge on one
    side!! Anyone else notice this?


    I had exactly this problem. I've had my MBP for exactly two months, then, for the last week, I have been noticing the battery life is reduced and the computer shuts down at 10-20% charge without warning. It wasn't until Saturday that I noticed the bulge on about one third of the width at the main input side which was delaminating the battery itself. I took it to the Apple Store last night and they promptly replaced the battery. Luckily they had one in stock.
    1.83 GHz MacBook Pro, Mac OS X (10.4.6), 1 GB RAM

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