KD4UPL wrote:
GM trucks have nothing to disconnect the camper batteries from the truck batteries. They are constantly hooked together as long as the 7 pin plug from the camper is plugged into the trailer. The solution is to unplug the cord from the truck when dry camping. Or, you can install a switch in the charge line and turn that off. If you want to automate the process I would install an automatic charge relay from Blue Sea systems or another reputable brand.
yup, Cleary described in the truck owners manual. However I believe it is not all trucks, It is the diesel trucks or gas w/o the aux battery. IIRC dual battery gas trucks disconnect when the ignition is off.
