Wolf's Motorhome Modifications
... and Other Stuff
Every motorhome I have had I have put in a trickle charger to keep the engine battery topped off. In northern Ohio it gets too cold in the winter to gamble that there is enough charge on a seldom used battery; that the battery won't freeze due to not having a charge.
My newer Mini Winnie has an always alive cigarette lighter port. I bought a cheap ten watt solar panel that I can put in the front window when parked. It has a trickle charger that feeds into the always-on cigarette lighter outlet.
Problem solved. Always charged.
No, it does not overcharge and boil the battery. If anything it keeps it a little below a normal engine charge.
I just bought another for when I am using the motorhome to drive to but not live in. For when, for example, I drive to my son's home in Texas and leave the box in the drive. I am going to use the second one to trickle charge the house batteries.
Here is a link as of September 13, 2022: