Illusive 30 amp Fuse

[Kwantau]

I would like to know where the 30 amp fuse that is in the wiring between the converter and the + terminal of the battery is located. I'm very familiar with wiring diagrams and the fuse is clearly indicated there. I have read on some previous threads that it is a glass fuse and to replace it with a flat type one. I looked in the converter area and could not locate it. Since I loomed the charge wire under the TM all the way to the battery but did not come across a fuse holder I'm at a lose . I did the mod that tapped in to the main trailer wire close to the battery and ran a 10 gauge wire, with a in-line 30 amp flat fuse for protection, to get a shorter charge line from the TV, but the inline fuse location between the converter and the battery escapes me.