Random shutdowns - IT'S THE BATTERY, NOT THE LOGIC BOARD!!!!

Question

Hey,
Just got my battery replacement, and the shutdown problem is GONE. Here's how you verify - run your Macbook with the battery removed, on AC power - the problem disappears.
The tech told me that it is a short in the battery, which tells the PMU that there is no power (whether there is or not!)...anyway, I hope this is helpful to all of you!
P.S. If you're also getting the vertical lines at startup, that's a video driver issue - just zap the PRAM so you can boot, and once booted, change the resolution to something else and back to normal - it will fix the problem entirely.
THERE IS HOPE!!!!

Answer 1

<<<dear ASPs! this is -NOT- true!!!! it is NOT the battery!>>>
probably thanks to you my ASP (DataQuest, Zurich Switzerland) only replaced my battery and handed back my MacBook unrepaired.
After the "repair" the problem at first was rare but after just three days I'm back at normal frequency of random shutdowns. I have to spend another two weeks waiting for my macbook. this time I'm sending it to Netherlands
I guess that it's really that badly calibrated thermal module causing these shutdowns. obviously the thermal module is irritated especially if you use your macbook often - so after 1-2 weeks of repair time the problem is barely apparent. (which causes unsuccessful repair - "testing after battery replacement worked fine" says ASP)
MacBook 1.8Ghz   Mac OS X (10.4.7)   & iBook 2 600