To clarify my original post I have a trail cruiser c191 trailer, with brand new battery. I left for 4 day camping trip battery monitor indicated fully charged battery. I camped for 4 days hooked up to electric the whole time. I packed up to go home checked the battery monitor and it indicated that the battery was in the yellow 11 volts, after 4 days of camping battery should have not been discharged.
I just checked the converter battery cables disconnected electric plugged in nothing turned on got a reading of 12.5v at converter and battery cables. Turned on the bathroom fan and 3 lights registered 13.8v at converter 13.4 at cables. I connected the battery and got the same reading's +-.3 volts. I guess the converter is working like its supposed to I'm going to leave it plugged in and check again tomorrow. Thanks for the help