before I do something really stupid, I would like to get some expert advice. I've heard so much about dripping into an empty carto that I would like to try it. I have a dead carto that I hopefully can get the fill out of without distroying the wire. OK, assuming it's empty and I have screwed it onto my battery, do I just drip my juice into it? I have both a auto and manual battery, does it matter which one I use? They both appear to have a hole in the connection top part. Am I going to kill my battery? (I hate when that happens). Any advice would be appreciated.