If their 30amp units had to have fans added to get respectable output in realistic temperatures, and these units don't have any, then how can we expect 50amps in real world? There is only so much you can do with heatsinks without fans. Remember the average Joe has enough lithium now to keep a charger bogged down for hours. If they don't have huge fins with an easy way to mount a fan I'll pass.
No solar or not enough solar, but you still want to charge your battery.What are the main use cases for a DC to DC charger?
What are the main use cases for a DC to DC charger?