Champion 2500-Watt Dual Fuel Inverter vs GenMax GM2200i
What is the difference?
The Champion 2500-Watt Dual Fuel 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.
The Champion 2500-Watt Dual Fuel Inverter is dual-fuel, the GenMax GM2200i runs on gasoline.
The Champion 2500-Watt Dual Fuel Inverter has a 1 gal tank, the GenMax GM2200i has a 1 gal tank.
The Champion 2500-Watt Dual Fuel Inverter weighs 43 lb, the GenMax GM2200i weighs 42 lb.
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 | GenMax GM2200i | |
|---|---|---|
| Running W | 1850 | 1800 |
| Peak W | 2500 | 2200 |
| Fuel | dual-fuel | gasoline |
| Tank (gal) | 1 | 1 |
| Run time @50 % (h) | — | — |
| Noise (dB) | 53 | — |
| CO shutoff | yes | — |
| Weight (lb) | 43 | 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.
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Compare other models → · All Champion models · All GenMax models