Originally Posted by Maine Sail
The steerling is a pos. I installed one a few months back. It was like 80% Efficient. At near same input and output voltage levels. (Mid 13s). I was getting something like 60a Input and 47a output. This caused the heatshrink to get too hot to touch after 20 mins of charging. (Yes fan was running) Even in 40F weather
with the hatch
open, and it’s not in engine
space. Then the heat protection would kick in and I would only get about 20a from it.
Also the worst programming device I have ever seen.
I ripped it out and put in a mastervolt mac 50 12v
It has no heatsink or fan. I had 50a In And 49a out with simular voltage levels. No heat. Super easy laptop
The only advantage the steerling has is it can compensate current levels if the charging battery drops voltage. Ie if only the 40a engine charger was on. (House fed from inverter
charger) The steerling would limit current to under 40a to maintain voltage ok On engine bank. . Where as the mastervolt will try to suck 50a and cycle on and off like an acr instead.
I’ve been wanting to test out the Orion smart . It was not available when I did the above job.