What you have to look for is the model number of your converter/charger. If this converter is a single mode type charger and only puts out 13.6VDC all the time then it may over charge your batteries. What you want is a smart mode converter/charger that will cycle thru the multi charge modes which will not boil out your battery fluids.
You can also just take a look at your battery fluids on a scheduled basis maybe every one or two weeks and see if you are losing fluids. If it is then you can add distilled water to keep the levels just covering the cores.
You can post your converter/charger model number and we can tell you what type of converter/charger unit you have on-board your trailer.
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA
RETIRED DOD DOAF DON CONTRACTOR Electronics Tech 42YRS
"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"