I have a sailboat that I’m planning to install a third party 48v LFP battery bank for the electric motor with a 12v AGM house battery. There are a lot of questions on this forum about using an Orion-Tr Isolated 48/12 converter as a battery to battery charger, and that answer is no. But what about using the converter output as the input on an Orion Tr Smart Non-Isolated 12/12 charger?
So, 48v LFP battery to 48/12 isolated converter to 12/12 non-isolated charger to 12v AGM battery. Would that work to get smart multi-stage battery to battery charging? If it helps the AGM batteries last an extra year it will be worth the expense.