I need a simple answer to a basic 12v wiring question. An electrician told my DH to put a fuse on the wire from the battery + terminal to the rv fuse panel since it is a long wire run and FR did not use very heavy wire (maybe 14 gauge). He said it would protect the wire in case of a short and possibly prevent a fire.
DH just switched out original 12v group 24 battery for dual 12v group 29 batteries, and he is not sure if such a fuse is needed (there isn't one in the original wiring) since none of the videos/articles on parallel wiring dual batteries shows it. If it is, what size fuse should he use?
Posted this once before and got no responses so reposting with more info. Any help very much appreciated.
Thanks very much.