BFL13 wrote:
The 2000w will run the microwave (1500w) if that is the only thing on. It seems you were also running the battery charger/converter (1000w) at the same time, which would overload the 2000w gen.
"Power management" is the answer.
+1
Verify the fridge and water are set to propane only. Turn the breaker to the converter off if you just need the MW for a few minutes. I would go with 2200 watts max generator rating to save weight and space.
Eventually you will want to review the converter charging system that you are getting 14.2+ volts on the battery.