The brand of trailer doesn't matter on this; it is the brand and model of converter that matters. Yes, one would think that the converter should charge but not overcharge, but that is most likely not so unless you have a fairly modern converter with intelligent charging.
Overcharging can occur in Scamp
, Playmate, UHaul
, Jayco, Airstream, or you-name-it, depending on the brand and model of the converter. I'll go further and venture that if your trailer was not manf in this century, your converter is far more likely to be capable of overcharging your battery
Call the converter manf with numbers in hand to find out what YOUR converter will do, not the trailer manf.
Most converters have their own plugin place inside the trailer, so you can leave the trailer connected to shore power, but the 12VDC off. Alternatively, you can pull the battery's main (30Amp) fuse to take it out of the charging circuit. Or you can get an aftermarket intelligent battery
charger to charge the battery
properly. Many folks remove the battery and maintain it elsewhere during winter storage.
Pete and Rats