Winterize system or not

I have a 5th wheel rv, that has a 600 watt solar charging system, Victron solar controller and shunt and 3, Dragonfly 100ah batteries.I live in Montana and winterize my trailer for the season. First winter I have a solar system in a trailer and I would like to know if I should take the batteries out and unhook the system or leave it in, and functional for the winter?2024-09-29T06:00:00Z