Hi HMS Beagle,
With lead acid house bank and lead acid starter I had charging. Enough that a 60 amp fuse fell on its sword.
My upgrade was to dual #8 (oem was #8) with twin 50 amp automatic circuit breakers. My ammeter maxes out at 70 amps--and I did have occasions where it would not display.
The lead acid were replaced with telcom jars, and whoops there was no charging from the alternator to the house unless I was running the microwave or other heavy draw. In fact it regularly sent power to the alternator. I replaced the starter battery with an AGM. No improvement.
My 20 amp renogy 20 amp dc to DC charger is sending up to 19.6 amps to the house bank. It is NOT a short run and is #8 wire. There is no voltage sensor.
I'm happy as a clam to have charging going on.