13" MBP shuts down on battery drain

[Cougarcat]

Hi,

I have a 2010 13" MBP that will shut itself off instead of going to sleep when the battery is drained. I tried recalibrating and resetting the SMC, as well as disabling hibernate, but the same thing happens. The computer is barely a month old. Anybody else with a 13" experiencing this? I posted this issue on the Apple forums and someone replied stating that they heard Apple is looking into it, but usually occurs with i5 and i7 machines.

 

[Surely]

You mean when it's drained down to 0%?

 

[Cougarcat]

You mean when it's drained down to 0%?

Yes.

 

[Surely]

How can it go to sleep if it has no power to sustain it while asleep?

Obviously it will shut off.... there's no power if it drains to 0%.

 

[Cougarcat]

It's supposed to keep some reserve power there so you can hook it back up to power without loosing your place.

On my old PowerBook, if I let the battery drain, the computer would go to sleep and stay that way for like a week.

 

[Surely]

I don't think that you're using the correct term.

Sleep uses power. That's why it drains the battery slightly if you put your MB to sleep without it being hooked to a power source.

You are talking about something else entirely. I think you're looking for a hibernate mode.

 

[Cougarcat]

It wouldn't even go into hibernate mode (My PB didn't even have that). It will just shut down. OS X is supposed to force the computer to go to sleep before the battery runs out entirely, and obviously that is not happening.

 

[star-affinity]

Here's how it works

http://www.macworld.com/article/53471/2006/10/sleepmode.html

The thing is, on the previous laptop I had (MacBook Pro from 2009) it worked like this:

It always used the ”quicker” sleep mode, but if I used the battery until it ”died” the hibernate mode would kick in and after plugging in the power adapter and pressing the power button on the MBP it would resume, like this: http://support.apple.com/kb/HT1757?viewlocale=en_US

But on the MaBook Pro from 2010 that I have now the computer just shut down when the battery was drained! This isn't very good and must be some fault?

Here's a post about it: http://mac.bigresource.com/MacBook-Pro-13-shuts-down-on-battery-drain--4tEDmsLbj.html