Champion 2500-Watt Ultralight Inverter vs GenMax GM2200i
What is the difference?
The Champion 2500-Watt Ultralight Inverter has 1.85 kW of running power, 2.5 kW peak. The GenMax GM2200i has 1.8 kW of running power, 2.2 kW peak.
Both run on gasoline.
The Champion 2500-Watt Ultralight Inverter has a 1.1 gal tank, the GenMax GM2200i has a 1 gal tank.
The Champion 2500-Watt Ultralight Inverter weighs 38 lb, the GenMax GM2200i weighs 42 lb. The Champion 2500-Watt Ultralight Inverter is easier to carry.
Both have 120 V AC output.
The Champion 2500-Watt Ultralight Inverter can add extra batteries.
Specs side by side
| Champion 2500-Watt Ultralight Inverter | GenMax GM2200i | |
|---|---|---|
| Running W | 1850 | 1800 |
| Peak W | 2500 | 2200 |
| Fuel | gasoline | gasoline |
| Tank (gal) | 1.1 | 1 |
| Run time @50 % (h) | — | — |
| Noise (dB) | 53 | — |
| CO shutoff | — | — |
| Weight (lb) | 38 | 42 |
| Warranty (yr) | 3 | — |
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Specs as read from manufacturer pages on 2026-10-26 / 2026-11-03. Specs one maker does not list are left out of the comparison. Sponsored links; we may earn a commission.
Common questions
Which is lighter, Champion 2500-Watt Ultralight Inverter or GenMax GM2200i?
The Champion 2500-Watt Ultralight Inverter. Lighter: 38 lb vs 42 lb.
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Compare other models → · All Champion models · All GenMax models