Can I put an Orion XS after an argofet splitter?

I have an argofet box connecting the outboard alternator to 3 lead acid batteries, one start, one windlass/thruster, one house.

I would like to replace the house battery with a LiFePO 4 battery. For ease of install simplicity, can I connect one output of the argofet to the input of the Orion DC-DC?