Answer

Can the Champion 2500W Ultralight Inverter (200951) run ResMed AirSense 11, typical power from the user guide?

Runs

Runs. Running draw 56 W fits within 1,850 running watts, and published startup 73 W fits within 2,500 starting watts.

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The comparison

Champion 2500W Ultralight Inverter (200951)ResMed AirSense 11, typical power from the user guide
Running watts1,850 W56 W
Starting / surge watts2,500 W73 W
Typeinverter, GasolineMedical
Published runtime11.5 hr at 1/4 load
SourcesGenerator sourceAppliance source

Questions

Can the Champion 2500W Ultralight Inverter (200951) run ResMed AirSense 11, typical power from the user guide?

Runs. Running draw 56 W fits within 1,850 running watts, and published startup 73 W fits within 2,500 starting watts.

What watts were compared?

Generator: 1,850 running W and 2,500 starting W on gasoline. Appliance: 56 W running, 73 W startup.

How long will it run?

Fuel runtime depends on total load. Published runtime: 11.5 hr at 1/4 load.

Where did the numbers come from?

Champion operator's manual and sell sheet: 2500 starting / 1850 running, 79cc, 1.1 gal, 11.5 hr at 25% load, 39 lb. Outlet detail beyond 120V household outlets not verified. Americas user guide, 65 W power supply section: typical power consumption 56.1 W (111.5 VA) and peak power consumption 73.2 W (137.6 VA). This is the published system figure, not the lower no-humidifier row on ResMed's separate therapy-power sheet.

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