cdru wrote:
Our trailer sets across the road from our house. I just make sure the batteries are fully charged, disconnect them, and let them sit. Our pontoon boat has two batteries, one starting and one trolling, and I do the same with them. We live in northern Minnesota on a lake and get temps way below zero, no problems. Been doing it this way for many years. cdru
We use the same approach with the 2 batteries in our boat and the one in the tractor. Charge in the fall. Make sure no load on them (disconnect positive). Use them in the spring. That has worked fine for the last 30 years. It does get very cold here in Ontario.