MacBook Pro shuts down when unplugged

batterypowershutdown

I have a late 2008 MacBook Pro work computer. Here's the sequence of events:

  1. I fully charge the battery
  2. I unplug the Mac from the power cable
  3. The Mac immediately shuts down

Before unplugging the Mac, I press the battery power indicator button and all lights are green. When I unplug the Mac I press the indicator button again and only one light is green.

I've tried resetting the PRAM, SMC and even bought a new battery but the problem persists. Here is the System Information.

How can I get my MacBook Pro to stay powered on when not plugged in?

Update: It was a dead battery. Apple gave me a new one for free.

Best Answer

If you bought a new battery, and that didn't fix the issue then I would say it is a short in the logic board. If it is still under Apple Care, I'd take it into a store, or call 1(800)MY-APPLE to get it checked out, and serviced.