Fuse size for Battery Isolator?

[Henderman]

I’m looking at putting an Isolator in my van to allow my house batteries to charge while I drive (I also have solar panels). The isolator I’m looking at is 140 Amps max. What size fuse should I use between the isolator and the house batteries? My house battery is a Weize 12V 100Ah LiFePO4 Lithium Battery.

 

[Henderman]

Thanks Verkstad
I was planning to use 4AWG wire between the alternator and the house battery.

 

[Anti-lander]

Also need a length of run for the wires.
for 4 gauge it would be a max of 200 amp at 15 to 25 feet. Under that length 4g is overkill 8 gauge would do 200amp at 5 to 7 feet
150 amp at 7 to 10 feet.
How many amps are being drawn by the accessories? If not amps what's the wattage?

 

[Regcabguy]

Also need a length of run for the wires.
for 4 gauge it would be a max of 200 amp at 15 to 25 feet. Under that length 4g is overkill 8 gauge would do 200amp at 5 to 7 feet
150 amp at 7 to 10 feet.
How many amps are being drawn by the accessories? If not amps what's the wattage?

I love your forum name. ?

 

[Henderman]

The wire from the alternator to the battery would run about 14' (all the way from the engine to the battery at the back of the van)
Total amps would be about 60 at max usage.