I messed around with my Honda generators yesterday. I was pumping out my hot tub at the time so I plugged the 1/3hp submersible pump and the dorm fridge into the EU1000i and it loaded it very little, not even to high idle. Then I took both the EU1000i and the EU2200i to my boat. I discharged the batteries for several hours and plugged in the 1000, I was surprised how much the 30 amp charger loaded it. It is a power factor corrected charger. I'm not sure it would run a 60 amp charger like I thought.
Then I tried the 2200 with the 16kBTU air conditioner. Would not start it. It would start the old 12k but not the 16k that I replaced it with.
Hope someone finds this useful or interesting.