wild70stang
lol guys. Everyone overshot my question. I was merely asking does it matter if you disconnect one terminal or both. When ever I did a Electrical job (alarm, ignition, etc) I always heard that most people just remove the negative. I usually disconnect both cables just for saving my ass in case of some freak accident (which happened and cost me $600). I also wasnt sure if disconnecting both for small jobs shortened the life of the battery for some odd reason, I ask that because a mechanic put in an interstate battery (long story I never like the brand) and it crapped out after 3 years (now I have a sears Gold class).