The Orion DC to DC has "Adjustable output voltage: can also be used as a battery charger".
I am going to assume that the Orion tr does not have a charge algorithm (bulk, absorption, float) like the Orion smart models since it only has one voltage that is adjusted. So, do you just set a bulk voltage? Would it reduce its amperage output based on what the battery is drawing and stop charging. Or is there (or should there be) another mechanism that prevents overcharging on a longer drive?