Without a battery your converter is trying to charge the world. Even though it's not written as specific to the need of a battery as it should be it's implying it's importance by talking about sharing the power between charging and demand........I think you need a battery in that system but I could be wrong.
No man has a good enough memory to be a successful liar. Abraham Lincoln
2016 36FBTS Pinnacle
2016 F350, 6.7, 4x4, DRW, long bed
B & W Companion 5th wheel Hitch