I can not believe you have a vented battery box inside your trailer? That battery box should be sealed and vented to the outside as it gives off dangerous fumes while being charged.
__________________ Jim Never in doubt, often wrong
Yes the battery is vented through the floor 2 small tubes bring gases out if you look real close you can see small clear plastic tubes . When we start using the snoozy more I will put a new agm battery under the bed