I looked at the drawings posted on this group and did not see any fuses between the controller and the battery. While reading another post there was a reference to fuses, but I was not sure if this was for a "portable" controller.
I have the system below, mounted my controller is a 6" battery box to protect it from the weather. I've used the system once and it easily recharged by 12 volt battery.
Should I install a fuse or a breaker between the controller and the battery? I can easily mount in the battery box next to the controller.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1