Sorry I did not answer you. We have been in Europe for the last month and I just got back and checked the forum. The solar panel I bought was the Microsolar 30 watt one on Amazon. I ran connector wiring to both the chassis batteries and house battery thru the "dog house" so I could charge either. I use the solar as a trickle charger to keep the chassis battery charged when I am gone for any length of time and the house batteries when we are out camping. I usually just mount it inside the windshield, but I also have separate wires outside to the house batteries so I can set up the solar panel outside, if I want too. We used it this summer on out two month trip out west and it helped to not run the generator as often. After a month in Europe the chassis battery was at 12.4v using the charger.
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