DutchmenSport wrote:
Simple test? Take the battery off the camper. Put it in the garage (or somewhere else), and put a portable charger on it that will shut off once the battery is fully charged. If no smoke, 1) you know the battery is still good. Let it sit for a couple days to see if it still holds a charge. If OK, then 2) you know the system in your camper is over charging and your battery is not damaged. 3) take appropriate action regardless of the outcome.
I submit that if a battery has smoked....repeatedly I might add, then it is certainly not good anymore.