Oh! Thanks for the link.
No wonder my % battery indicator not accurate! Now I know the reason. Will do a calibration tonight. Thanks for the tip.
And do you guys know if the 8600GT MBP still have the issue with the graphics chipset? My GPU failed last week finally and got a free replacement from Apple(out of warranty), because they know it's defective. Does the new 8600GT from Apple still have the issue? As far as I know it seems the whole entire 8600GT line are defective? If not, I'll get a second battery. If the problem still exists, I'll get a new MacBook.
Cheers