I built a 560AH 24v battery bank for my camper van, it weighs a good 200lbs so not looking forward to storing it somewhere warm for winter. So Ideally I leave it in the van and completely disconnect it from everything. But Wisconsin winters I notice moisture will freeze on everything it can, so I don't wanna leave my tinned copper exposed, is it possible to coat each terminal with some sort of silicone or sealant to prevent moisture build up?