Thanks for replying. Yes, the start battery does not charge. I have found what I think is the Isolator, but it is not hooked up the way I have seem them hooked up. I just went out and looked at the setup, on the right side of the isolator I am getting 13.5 volts, I would say alternator voltage. ON the middle I a getting 12 volts, thinking it is battery and on the left side I am 12 volts. From what I have read about Isolators the center connection should be the alternator voltage. What does the battery disconnect switches do. If my chassis battery switch is in the off position, the starter will not engage. After I came inside I thought about the invertor with the trickle charge while the AC being plugged in. I need to go check the voltage with the AC unplugged. I know enough about MH electrical to make me dangerous. LOL I wish I understood as much as I know, or think I know.
