Gdetrailer - thanks for your thoughts. I may not have been clear with some of my comments.
I am having a problem with the Magnum 3012 boost inverter playing well with the i4500 generator to start ONE AC (1500W) yet alone two.
I can start 1 AC on just the batteries using the inverter, but not reliably with the generator with boost on or off on the inverter. If plugged in to 30A shore I can easily run both ACs and other things while having the inverter load support on. Similarly I would expect to be able to do the same off of the i4500 (3700W continuous, or ~30A). BTW, the Magnum automatically throttles the charger if current demands are too high; but I’ve turned that off and still have issues.
It’s looking like there is some issue with the Magnum qualifying (or disqualifying) the incoming power and/or syncing with it from the generator. Iwith playing with various programming I’m able to get an AC started about 10% of the time, but it’s not deterministic, and playing around for 20-30min to get it going when it’s 100degrees inside isn’t fun.
I just got off of my second call with Magnum tech support and they’re passing my issue up to someone more senior. Still looking for related experiences and/or advice…thanks