I went to a 1 wire long ago and haven't looked back. I bought a 120A chrome 1-wire on Ebay for under $100 shipped and have no problems electrically. That's probably less than you spent on your battery.

Here's one for $70: http://www.ebay.com/itm/like/350970868932?ul_noapp=true&chn=ps&lpid=82

I think that's the same one I bought.

Last edited by gbauer; 01/16/16 10:04 AM.