In theory, what would happen if I put, say, any "random" 10A DC-DC converter between my alternator and my Orion-Tr Smart 12|12-18? Would that explode or screw something up? Or would it work as a way of limiting the current drawn from my teeny-tiny alternator?
That will overload and maybe damage/destroy the small DCDC. If the small DCDC have a protection against overload it will shut down.
As far as I know there is something in development to adjust the current of the Smart Orions, but I don't know if that will be just a firmware update or a new hardware revision and there is also no release date for that.
Not a recommendation, but an concept:
https://www.amazon.com/SMAKN%C2%AE-Waterproof-DC-DC-module-Converter/dp/B017CNAL56
8-40VDC input, 13.8V/5A output - would make a decent float charger
