I had to bend the hydraulic line out of the way on my 2209, in order to fit the second battery. I have a 100 watt solar panel, it produces about 5 amps in full bright sun light, I started out moving it around to face the sun but I was afraid to leave it out when I wasn't there for fear it would walk off. Putting it in and out became to much for me to do. We unhook and take trips a lot, fishing and site seeing. I just recently mounted it on the roof, but lying flat the output is not very good, I am going to angle it some but then it will only work when facing the sun. I will have to try and park the trailer the right way. I do have a generator but was trying to get away from using it. The solar panel did supply my needs when I kept it facing the sun all day.