Where is 89 Southwind RV Alternator Fuse

I fixed the issue, simply enough, by cleaning up all of the terminals on the batteries and the relay above the alternator that Doug mentioned. Nothing was wrong but a bad connection. I did find the fusible links near the starter (passenger side, behind the front wheel), but they seemed functional. I was about to just run a new wire directly from the alternator to the battery to bypass all the rest of the relay nonsense, but no need! Thanks for your help everyone!