Hi Gerry
 

My battery charger is defective, and VW dealer do not repair them, So
I looking for the wiring of the battery charger itself.
The battery charger i am talking about, is the battery charger that feed the
auxiliary battery on a VW Westfalia camper when the motor is off and the
camper is plug in a 120 volts outlet for the night. The charger feed the auxiliary
battery, and the battery feed the lighting and the refrigerator.