[mogmeister]

In the past, when my bus was parked for a few weeks the batteries were empty. Now I got a 15 w solar panel and put it on the dash when I don't use the bus. It works great. The Batteries are allays 12.7V

 

[bbasso]

from where?
what brand?
How much?
wired how?

 

[drinkypoo]

Get one anywhere. 15W is probably overkill. Charge controller at any hardware store under thirty bucks.

 

[MikeL46]

Search for a '12v car solar charger and you will find many sources.

Mike