Champion 5500-Watt Dual Fuel Inverter vs WEN DF623X
What is the difference?
The Champion 5500-Watt Dual Fuel Inverter has 4 kW of running power, 5.5 kW peak. The WEN DF623X has 5 kW of running power, 6.25 kW peak.
Both are dual-fuel.
Both have a 2.9 gal tank.
The Champion 5500-Watt Dual Fuel Inverter has a 3-year warranty, the WEN DF623X has a 2-year warranty.
The Champion 5500-Watt Dual Fuel Inverter has 120 V AC output, the WEN DF623X 120/240 V. Only 240 V output can run 240 V loads such as many well pumps, dryers and central AC.
The Champion 5500-Watt Dual Fuel Inverter can add extra batteries.
Specs side by side
| Champion 5500-Watt Dual Fuel Inverter | WEN DF623X | |
|---|---|---|
| Running W | 4000 | 5000 |
| Peak W | 5500 | 6250 |
| Fuel | dual-fuel | dual-fuel |
| Tank (gal) | 2.9 | 2.9 |
| Run time @50 % (h) | — | — |
| Noise (dB) | 70 | — |
| CO shutoff | yes | yes |
| Weight (lb) | 85 | — |
| Warranty (yr) | 3 | 2 |
| Check on Amazon → | Check on Amazon → |
Specs as read from manufacturer pages on 2026-10-26 / 2026-10-27. 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 5500-Watt Dual Fuel Inverter or WEN DF623X?
The WEN DF623X. More running watts: 5000 W vs 4000 W.
Which has the longer warranty, Champion 5500-Watt Dual Fuel Inverter or WEN DF623X?
The Champion 5500-Watt Dual Fuel Inverter. Longer warranty: 3 years vs 2 years.
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Compare other models → · All Champion models · All WEN models