Originally Posted by Beau388
It a minimum of 8-9 volts on the house batteries to activate the latching relay controlled by the master power or use/store switch. If the house batteries get below 9 volts and the latching relay is off, the batteries must be charged by an external source. At least that is the way my coach works.
Thanks again for the help. I am charging the batteries with an external charger. Love this forum. If the rain ever stops going to check if relay is working.