Falcon 170
What is this, how do you check it
Forum Discussion
The gizmo pictured looks like an isolator I had on a previous van camper. The isolator splits the alternator charge to both the house battery and the vehicle battery to keep the house battery charged while driving. It also isolates the house battery circuit so that the house current cannot drain the vehicle battery while camping. Can't tell you how to test it ---might try googling "isolator" for info.
