Sudden power down when on battery

[EttienneM]

Hi there,

I have a mid 2009 17" Macbook Pro which has developed the habbit of powering down seconds after removing the AC adapter. I recently replaced the battery, but to no avail.

The strange thing though, when I boot into the Mavericks recovery partition the Macbook happily runs off battery power with no issues at all. It only happens in Mavericks.

 

[durkkin]

Try resetting the SMC, it's responsible for your computer's power management, including the battery.

http://support.apple.com/kb/ht3964

 

[EttienneM]

yeah, tried that... didnt do anything

 

[durkkin]

Well that's unfortunate. Is the battery showing in the menu bar with charge percentage and whatnot while in Mavericks?

 

[EttienneM]

Well that's unfortunate. Is the battery showing in the menu bar with charge percentage and whatnot while in Mavericks?

It does show up, and the status is reporting as "Normal"

 

[MacModMachine]

sounds like a short in the battery.

 

[durkkin]

sounds like a short in the battery.

Doubtful. He already replaced the battery and it works fine when booting from the recovery partition.

OP, if you have a backup try erasing and reinstalling. You know the hardware works, so it must be software.