Using Argofet and Orion together. Is there a better or simpler way?

DIY
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1

Designing new solar and lithium system for 36’ sailboat. Not sure if I have the alternator charge system correct. I’m thinking an Argofet to isolate the alternator from the batteries and two Orions, one for the house battery bank (they have recommended charge of 56amps) and one for the start battery which has a 10amp recommended charge.

The note on the drawing about the Blue Smart IP65 charger was for my own use. It was another charging idea I considered.

Thoughts and/or suggestions requested.
Thanks

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2

Orion-Tr Smarts (as with most DC-DC chargers) are battery-to-battery chargers, they require a battery on the input and should not be directly connected to the alternator. Alternator goes to start battery, DC-DC charger goes between start battery and auxiliary battery.

There are alternator-to-battery chargers (Sterling Power comes to mind, probably some other brands as well) but the Orion lineup is not.