retiredgeologist,
Even with 875 amp-hours of marine batteries I was able to "kill" two 60 amp fuses. They were fed by a #8 wire from a 130 amp alternator. (duty cycle 1/3)
After the 2nd failure, I replaced the fuse with an automatic 50 amp circuit breaker.
I did "double up" on the charging path adding a 2nd #8 wire connected to the starter battery--equipped with a 2nd 50 breaker.
I have a way to monitor charging up to 70 amps--and the circuit breakers did cycle under heavy loads. (an inverter running the 1400 watt electric water heater)
My loads would be tiny compared to the LiFePo4 batteries.
Make and model of the "racing" alternator would be useful.
Duty cycle for the alternator is???
Even if it is continuous duty, an automatic circuit breaker would be a nice addition--say 200 amps? (size wire appropriately)
