Originally Posted by Flybob
If both AC units start at the same time you will exceed the capacity of the generator. if the inverter is on and running the fridge you will compound the problem. I do not think you have a problem other than you may not be able to run both ACs and inverter at same time when on generator
That's what I was thinking too, plus there is always a certain amount of power going out from the generator to recharge the batteries which can be anywhere between 5 and 15 Amp AC, depending on the converter. The 5500 Onan is capable generator but it has its limits.
2013 RAM 3500 Dually Longhorn
2014 Trilogy 3650RL, W/D, Onan 5500, 8000# Axles, IS, 960 Watt Solar, 6x6 Volt Battery Bank, Freedom SW 3012 Inv/Charger