Originally Posted by BrewdogMN
I am wanting some advice on whether to remove batteries and store indoors or park the coach, use the battery disconnect and wire them so I can put a maintenance charger on them for the winter in Minnesota. They are quite heavy and I have 2 chassis batteries and 4 6volt coach batteries. I do know how to wire them for charging but am not sure if this is appropriate to do in the cold weather. I guess I know the indoor storage is ideal but can I get away with the other method. Thanks in advance for any advice.
Your Newmar is, or should be unless someone changed it, equipped with a charging system that will maintain your Chassis and house batteries as well or better than any off the shelf maintainer.
It sounds like you have access to a 15A service plug so, the coach in, leave the chassis and house disconnect switches ON, turn the gas detector off and your in business.
Check the water level of the house batteries every 6-8 weeks to make sure they don't go dry. Check the battery voltage while plugged in. It should not exceed 13.8VDC.
My coach has been plugged in 24/7, unless we are traveling, for years. The batteries are approaching eight years old.