Bob S - There is an in-line 15a fuse between the battery and the fixtures. It's located in the junction box to the fixtures, and I will tape the box of spares to the top of the junction box (great idea!) - I planned on marking the switches, and bagging up the paperwork is another great idea that I will do.

Am Fear Liath Mor - The panel is set far from the view of a passer-by. The gravel road behind the gate in the distance of my first picture is a dead end road with just a couple of neighbors down there. They would have to look real hard to see the panel. I am considering putting a chain link or barbed wire fence around the 3.6kw of panels we have in our front pasture - those are visible, and with the cost of solar going up, it could be a theft just waiting to happen.

CAP613 - Yes, I did use a 100' roll of 10 gauge wire. The wire is in conduit from the panel to inside the pigpen/store room. I was expecting to have at least 20' left over, but barely had 7 feet by the time I pulled the line. I am pretty content to have a single line from the panel to the charge controler (no splices, connections, or junction boxes)

Sir Joel - I didn't sit down and calculate the math of how long I could run all the items together. In the winter, with the battery fully charged, the system should be able to perform it's needed functions for a week without sunlight (5 hours of light to the chicken coop per day and occasional light in the store room and pig pen) Summer should be no problem running the fans during the heat of the day and lights in the evening. The panel should be able to maintin a full battery charge and run the fans during the day. I do plan to switch the lights from incadescent to leds too, and that will greatly reduce the load of the light fixtures on the battery.

Thanks for all the input as this project came together. It would not have turned out the way it did if not for the great information learned from this sight. You're all as much a part of the success of this project as I am as it was your ideas and input that helped it all come together!