Champion 7000W Dual Fuel (100155) vs Generac GP6500 COsense
The Champion 7000W Dual Fuel (100155) is the more powerful unit: 7,000 running watts against 6,500 — about 7% more capacity for the Champion 7000W Dual Fuel (100155). The Champion 7000W Dual Fuel (100155) offers more fuel flexibility (gasoline, propane) where the Generac GP6500 COsense runs on gasoline.
| Champion 7000W Dual Fuel (100155) | Generac GP6500 COsense | |
|---|---|---|
| Type | portable | portable |
| Fuel | gasoline, propane | gasoline |
| Running watts (gas / LP for standby) | 7000 W | 6500 W |
| Starting watts (gas) | 9000 W | 8125 W |
| Running watts (propane) | 6300 W | — |
| Starting watts (propane) | 8100 W | — |
| Runtime at 50% load (gas) | — | 11.5 h |
| Fuel tank | 6.1 gal | 7.9 gal |
| Output voltage | 120/240V | 120/240V |
| Transfer-switch-ready outlet | — | 30 A |
| Start type | electric | recoil |
| CO safety shutoff | — | Yes |
| Engine displacement | 439 cc | 389 cc |
| Weight | 202.4 lb | 172 lb |
Frequently asked questions
Which is more powerful, the Champion 7000W Dual Fuel (100155) or the Generac GP6500 COsense?
The Champion 7000W Dual Fuel (100155), at 7,000 running watts on its best fuel versus 6,500 W. Remember that dual-fuel and natural-gas ratings are lower than gasoline ratings — the comparison table shows the published per-fuel figures.
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.