Champion 2500-Watt Dual Fuel Inverter vs GenMax GM2000i
What is the difference?
The Champion 2500-Watt Dual Fuel Inverter has 1.85 kW of running power, 2.5 kW peak. The GenMax GM2000i has 1.6 kW of running power, 2 kW peak.
The Champion 2500-Watt Dual Fuel Inverter is dual-fuel, the GenMax GM2000i runs on gasoline.
The Champion 2500-Watt Dual Fuel Inverter has a 1 gal tank, the GenMax GM2000i has a 1.2 gal tank.
The Champion 2500-Watt Dual Fuel Inverter weighs 43 lb, the GenMax GM2000i weighs 34 lb. The GenMax GM2000i is easier to carry.
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 GM2000i | |
|---|---|---|
| Running W | 1850 | 1600 |
| Peak W | 2500 | 2000 |
| Fuel | dual-fuel | gasoline |
| Tank (gal) | 1 | 1.2 |
| Run time @50 % (h) | — | — |
| Noise (dB) | 53 | — |
| CO shutoff | yes | yes |
| Weight (lb) | 43 | 34 |
| 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 has more running watts, Champion 2500-Watt Dual Fuel Inverter or GenMax GM2000i?
The Champion 2500-Watt Dual Fuel Inverter. More running watts: 1850 W vs 1600 W.
Which is lighter, Champion 2500-Watt Dual Fuel Inverter or GenMax GM2000i?
The GenMax GM2000i. Lighter: 34 lb vs 43 lb.
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Compare other models → · All Champion models · All GenMax models