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 agree with Coach-man...I bought a panel and controller from Northern Tool and as my 5th wheel sits in the storage lot it keeps my 2 x 6 volt batteries at around 12.6 volts during the winter.
The only concern would be if my panel suddenly "grows legs" and disappears.