Champion 2500W Dual Fuel Inverter
#1 in SmallFull review
A small, quiet dual-fuel inverter for campers and light outage backup who want the option of propane.
Amazon $575$575
The Champion 2500W Dual Fuel Inverter is the better inverter generator overall, rated 3.9 to 3.7. The Champion 2500W Dual Fuel Inverter leads on fuel options. The Champion 2500W Ultralight Inverter costs $56.75 less ($518.25 vs $575).
Champion 2500W Ultralight Inverter
#4 in SmallFull review
A light, quiet gas inverter for camping, tailgating and running a fridge and lights in an outage. Pick the dual-fuel 2500W instead if you want propane.
Amazon $518.25$518.25
Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Champion 2500W Dual Fuel Inverter for fuel options (gasoline or propane vs gasoline only).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every small inverter generator; a clear win is highlighted. How we rank explains each one.
| Factor weight | Champion 2500W Dual Fuel Inverter | Champion 2500W Ultralight Inverter |
|---|---|---|
| Overall rating | 3.9/5 | 3.7/5 |
| Value 30% | 72 $0.31 per running watt | 80 $0.28 per running watt |
| Quiet 20% | 64 53 dBA at light load, maker rating | 64 53 dBA at light load, maker rating |
| Run time 15% | 75 11.5 hours on a tank at 25% load | 75 11.5 hours on a tank at 25% load |
| Fuel options 10% | 70 gasoline or propane | 0 gasoline only |
| CO safety 10% | 100 shuts off when carbon monoxide builds up | 100 shuts off when carbon monoxide builds up |
| Warranty 10% | 50 3-year warranty | 50 3-year warranty |
| Starting 5% | 0 pull start only | 0 pull start only |
Specifications
| Champion 2500W Dual Fuel Inverter | Champion 2500W Ultralight Inverter | |
|---|---|---|
| Output | ||
| Gasoline | 1,850 W running, 2,500 W starting | 1,850 W running, 2,500 W starting |
| Propane | 1,665 W running, 2,500 W starting | - |
| Outlets | 2 × 120 V | 2 × 120 V |
| Parallel capable | Yes | Yes |
| Total harmonic distortion | under 3% | under 3% |
| Price per watt | $0.31 | $0.28 |
| Fuel and run time | ||
| Fuel | Gasoline, propane | Gasoline |
| Tank | 1.1 gal | 1.1 gal |
| Run time (gasoline) | 11.5 hr at 25% load | 11.5 hr at 25% load |
| Run time (propane, 20 lb tank) | 25 hr | - |
| Engine | 80 cc | 80 cc |
| Noise and safety | ||
| Rated noise (light load) | 53 dBA | 53 dBA |
| CO shutoff | Yes | Yes |
| Build | ||
| Starting | Recoil (pull) | Recoil (pull) |
| App | No | No |
| Wheels | No | No |
| Dimensions | 17.6 x 12.8 x 18.1 in | 17.6 x 12.6 x 18.1 in |
| Weight | 43.2 lb | 39.7 lb |
| Warranty | 3 years | 3 years |