What is the best way to keep batteries charged during the winter while in storage with no electric, I don't want to bring them home. Addendum: It is a FW with no Generator.
I second the suggestion to disconnect your batteries and reconnect them when you fire up your generator. Running the generator once a month is a really good idea and it should charge your batteries. Put a load on your generator when you are running it. I turn on my ac's - which should be run now and then. I run mine for an hour.