[s_c5519]

I was gonna say the same thing, have someone else recheck the battery, the first place probably didn't do a thorough test. I had to go to a couple different places when taht happened to me, one place said it was fine and the GM dealer found the bad cell and replaced the battery under warranty... Once you have to jump a battery more than a few times, it is never the same...

I think you are looking to deep... It is just too much of a coincidence it happened while the car was in on for hours...