Mac Shuts Off After Battery Dies

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.

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 cmd opt+PR when you restart it).

Good luck..

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?

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.

Battery, replaced problem solved...for now. Hopefully it won't happen again in 2 months.....

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.

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.

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

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...

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.

I'm having the same problem guys. I also received mine about 2 months ago. Started fairly recently and I have it for auction on eBay and it ends later on Tuesday. - Can I get a New battery from the Genius Bars in the Store so I don't have to wait for one, since I'm selling the thing and I need to ship it out by thurs?

Intersting Note- I unplugged my computer @ 10:30- with 100% battery -- would shut off periodically about 5-10 minutes in between each use -- tried to turn it on again and the battery was down to 0%.

Thank God I wasn't in the middle of something important.