A gas-only open-frame inverter for California RV owners who want clean power for a 30 A RV at a low price per watt.
Price checked October 28, 2026. As an Amazon Associate we earn from qualifying purchases.
Every Champion 5500W Open Frame Inverter CARB model we rank, smallest first. Ratings compare each against its own size.
| Model | Running / starting | Rating | Price |
|---|---|---|---|
| Champion 5500W Open Frame CARB (this one) | 4,000 / 5,500 W | 3.3/5 | $699 |
| Champion 5500W Dual Fuel Open Frame CARB | 4,000 / 5,500 W | 3.5/5 | $799 |
The rating comes from 7 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
| Model number | 201255 |
|---|---|
| Output | |
| Gasoline | 4,000 W running, 5,500 W starting |
| Outlets | 2 × 120 V, TT-30 (RV) |
| Parallel capable | Yes |
| Price per watt | $0.17 |
| Fuel and run time | |
| Fuel | Gasoline |
| Tank | 2.9 gal |
| Run time (gasoline) | 13 hr at 25% load |
| Engine | 224 cc |
| Noise and safety | |
| Rated noise (light load) | 70 dBA |
| CO shutoff | Yes |
| CARB compliant | Yes |
| Build | |
| Starting | Recoil (pull) |
| App | No |
| Wheels | No |
| Dimensions | 21.3 x 17.9 x 17.9 in |
| Weight | 81.6 lb |
| Warranty | 3 years |
| Released | 2026-06 |
A compact dual-fuel inverter for small RVs and basic home backup at a low price per watt. It can just about run a small RV air conditioner, but don’t expect much else alongside it.
Amazon $719A low-cost way to run a 30 A camper with one air conditioner, with electric start and CO shutoff. Expect to buy an extended warranty if you want long-term cover.
Harbor Freight $799.99A light, inexpensive 4,000 W inverter for RV owners who need to start a rooftop air conditioner without hauling a heavy generator. Expect frequent refueling.
Amazon $450.07Compare the Champion 5500W Open Frame CARB with any other inverter generator →
More from Champion: every Champion product ranked.
