Came home from camping vacation and next day had a strong smell of sulfur coming from camper. checked battery compartment and found battery swollen and boiling over. Took out old battery and replaced ...
Probably right behind the basement rear storage wall on the door side of the trailer. There should be 4-6 screws holding the wall panel on. The converter is likely right behind it plugged into a standard 120V outlet. You can't miss it as it will say the make and model number right on it, have large DC leads coming from the battery, and be plugged into an outlet.