MNRon, Before installing the Micro-Air on the unit if I was in AZ (low elevation) during Dec-Apr there wasn't an issue at 15a load share. As I moved north during the summer and climbed in elevation 4,000' or so and ambient temps of 90f was the range that it would be hit and miss with 1 generator set at 15a load share. If I put my eu2000i and the companion eu2000i together and set load share to 30a there never was a problem even at elevations of 6,000' or so. I never ran the A/C unit off of batteries before adding the micro-air.
Since adding the Micro-air last year I can use either 1 eu2000i or 1 eu2200i generator with eco off and it will start the A/C unit up to 6,000' or so without issue as long as I have 16a as the load share, 15a is a fault every once in awhile especially if the temps are in the mid 90's.
I don't allow it to charge the batteries while running the A/C off of the generator because my 1,280w solar covers that.
When I run the A/C off of batteries there is never an issue even if the ambient temps are high. I can watch as the micro-air start to spool up for a few seconds on my display and max's out at 190a before settling down to a steady 13a draw of the A/C.