In the past, when reading about those that have “experienced” a blown fuse or power center issue by misconnecting battery wires I thought “how could someone with ANY knowledge of automotive electrical systems possibly do this wrong?” Well, as you may have guessed, I HAVE personal experience with the issue!
Fortunately, the 20 amp blade type fuse in the little green plastic box (as described by Eagle) saved the day and prevented any serious damage. (Pride was slightly injured). I do believe that there is an additional level of protection in the fuse panel of the WFCO Converter. I would imagine that other brands of power centers have similar protection.
This year when I remove the battery prior to putting my FF in Winter storage (coming soon

), I’ll be marking the wires as suggested by profdan and hopefully prevent additional “experience” with this issue.