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Champion 2500-Watt Dual Fuel Inverter vs Cummins Onan P2500i

Champion 2500-Watt Dual Fuel Inverter

1850 W running · dual-fuel

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Cummins Onan P2500i

2200 W running · gasoline

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What is the difference?

The Champion 2500-Watt Dual Fuel Inverter has 1.85 kW of running power, 2.5 kW peak. The Cummins Onan P2500i has 2.2 kW of running power, 2.5 kW peak.

The Champion 2500-Watt Dual Fuel Inverter is dual-fuel, the Cummins Onan P2500i runs on gasoline.

The Champion 2500-Watt Dual Fuel Inverter has a 1 gal tank, the Cummins Onan P2500i has a 1 gal tank.

The Champion 2500-Watt Dual Fuel Inverter weighs 43 lb, the Cummins Onan P2500i weighs 46 lb. The Champion 2500-Watt Dual Fuel Inverter is easier to carry.

Both have a 3-year warranty.

Both have 120 V AC output.

The Champion 2500-Watt Dual Fuel Inverter can add extra batteries.

Specs side by side

	Champion 2500-Watt Dual Fuel Inverter	Cummins Onan P2500i
Running W	1850	2200
Peak W	2500	2500
Fuel	dual-fuel	gasoline
Tank (gal)	1	1
Run time @50 % (h)	—	8
Noise (dB)	53	—
CO shutoff	yes	—
Weight (lb)	43	46
Warranty (yr)	3	3
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Specs as read from manufacturer pages on 2026-10-26 / 2026-10-31. Specs one maker does not list are left out of the comparison. Sponsored links; we may earn a commission.

Common questions

Which has more running watts, Champion 2500-Watt Dual Fuel Inverter or Cummins Onan P2500i?

The Cummins Onan P2500i. More running watts: 2200 W vs 1850 W.

Which is lighter, Champion 2500-Watt Dual Fuel Inverter or Cummins Onan P2500i?

The Champion 2500-Watt Dual Fuel Inverter. Lighter: 43 lb vs 46 lb.

More comparisons

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