I'm learning...slowly!!
New fuse (150) and that helped!
But the a/c unit only runs for about 5 mins and the inverter "faults" due to low incoming voltage (that is my interpretation anyway).
I think that means I need more battery power but it seems like I am going to need a LOT more than I was expecting. Frustrating but also good that I'm learning a lot along the way.
At this point we are going to be looking for a campsite with power instead of relying on the battery/solar combo. And I need to continue to dial in the power requirements.