It's Not The Temp Sensor that Goes to inverter as that is a phone line & I found that line attached to post on (Coach) Batt, which I tested & found to be bad, So I need to splice New sensor to that line.
However The one I spoke of above has only Two Black wires as opposed to The Temp Sensor for Coach Batts as that has Green, Yellow, Black & Red wires.
But I Think Mike Hit it, I do have Solar panels & Just might explain the Two Wires attached to Starting Batts. I made error in My original post, These Two wires are actually taped to side of one of the Starting Batts not the Coach Batts..
45' Newmar Essex, Towing 24' Trailer, 2007 Mini Cooper Conv as well as Street Legal Golf Cart inside.
Anyone wanna play Golf??.