I have a Unique 10.3 cu.ft. 12 V. DC fridge (pulls 53watts, 524wh in 24 hours). According to the manual, I should use 8 Gauge wire for the 30foot run. It also says a "15amp fuse should be installed in-line near the battery terminal" (and that it's included--but it is not). My system is pretty basic. 1 Lithium 100AH battery. 500W of panels. Victron 150/35 controller.

My question: I have the 8 gague wire going to the battery terminals directly, as recommended, but I'm confused about what size in-line fuse to use. For 8AWG wire, I don't find any 15 amp fuses (and it seems that that size wire requires a 40Amp fuse). Should I install a 40A in-line fuse near the battery terminal? Or, should I rethink how to run a 15A fuse on the line (fuse box?). I'm very new to solar and any help/advice appreciated.

A further concern: I attached the 8AWG wire to the 4 feet or so of wire coming out of the fridge, which looks to be 12AWG at best. Is that OK, or should I run the 8AWG directly into the power supply under the fridge?

Thanks!