Originally Posted by Chriztofor
Thanks for the update. Wouldn't have thought that the battery you just bought was not fully charged. Now I am wondering what the heck is that wire on my car?!
Back in the day when batteries were not sealed, they'd ship them "dry" and the parts store would fill up the battery with electrolite and the battery had enough charge built up to get the car started, or the parts store would fast charge it for a few mintues before that handed it over to you. Being that we're talking a BMW E90, it not suprising a battery with 12V on it wouldn't start a 12V car...