Champion 7500W with 50A Outlet (100813) vs Champion 7500W Dual Fuel (100891)
Both units carry the same best-fuel running rating: 7,500 W. The Champion 7500W Dual Fuel (100891) offers more fuel flexibility (gasoline, propane) where the Champion 7500W with 50A Outlet (100813) runs on gasoline. The Champion 7500W Dual Fuel (100891) runs longer at half load — 10 hours on its 7.7-gallon tank vs 8 hours.
| Champion 7500W with 50A Outlet (100813) | Champion 7500W Dual Fuel (100891) | |
|---|---|---|
| Type | portable | portable |
| Fuel | gasoline | gasoline, propane |
| Running watts (gas / LP for standby) | 7500 W | 7500 W |
| Starting watts (gas) | 9375 W | 9375 W |
| Running watts (propane) | — | 6750 W |
| Starting watts (propane) | — | 8400 W |
| Noise level | 74 dBA | — |
| Runtime at 50% load (gas) | 8 h | 10 h |
| Fuel tank | 5.7 gal | 7.7 gal |
| Output voltage | 120/240V | 120/240V |
| Transfer-switch-ready outlet | 50 A | — |
| Outlets | 4x GFCI 5-20R, L14-30R, 14-50R | — |
| Start type | electric | electric |
| Engine displacement | 420 cc | 439 cc |
| Weight | — | 205 lb |
| Warranty | 3 yr | 3 yr |
Frequently asked questions
Which costs less to run, the Champion 7500W with 50A Outlet (100813) or the Champion 7500W Dual Fuel (100891)?
Estimated fuel for 24 hours at about 50% load: $55 on gasoline for the Champion 7500W with 50A Outlet (100813) vs $59 on gasoline for the Champion 7500W Dual Fuel (100891), at national average prices. These are spec-sheet-derived estimates — the assumptions are on the methodology page, and different fuels make this a cost comparison, not an efficiency ranking.
Where do these specifications come from?
Every record on BackupAtlas is hand-curated from manufacturer documentation and spec sheets, and each generator page links to its source document.