DuroMax XP5500HX
#1 in SmallFull review
A small dual-fuel generator for keeping a fridge, freezer, sump pump and lights going through a transfer switch, with remote start and a five-year warranty.
Amazon $599$599
4.1/5
A small dual-fuel generator for a 30 A RV or a few essentials in an outage, for buyers who want electric start, propane and CO shutoff at a low price.
- 3,650 / 4,550 WRunning / starting
- Gasoline, propaneFuel
- 14 hr at 50% loadRun time
- 120 V only (L5-30)Transfer switch
- 127 lbWeight
- $0.16Price / W
Check price at Amazon$599.99
Price checked October 28, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Starts with a switch, and shuts itself off if carbon monoxide builds up
- Both TT-30R and L5-30R outlets plug straight into a 30 A RV
- Runs on gasoline or propane, so stored fuel never goes stale
- Up to 14 hours on a tank of gasoline at half load
Cons
- 120 V only, so it can’t feed a 240 V transfer switch
- Only one household duplex outlet
- Not listed as CARB compliant
The Champion 3650-Watt family
Every Champion 3650-Watt model we rank, smallest first. Ratings compare each against its own size.
| Model | Running / starting | Rating | Price |
|---|---|---|---|
| Champion 3650-Watt RV Ready | 3,650 / 4,550 W | 3.7/5 | $469.99 |
| Champion 3650-Watt Dual Fuel (this one) | 3,650 / 4,550 W | 4.1/5 | $599.99 |
How it scores
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.
Specifications
| Model number | 201504 |
|---|---|
| Output | |
| Gasoline | 3,650 W running, 4,550 W starting |
| Propane | 3,285 W running, 4,100 W starting |
| Outlets | 2 × 120 V, TT-30 (RV), L5-30 |
| Transfer switch ready | 120 V only (L5-30) |
| Full power at 120 V | No |
| Price per watt | $0.16 |
| Fuel and run time | |
| Fuel | Gasoline, propane |
| Tank | 4.7 gal |
| Run time (gasoline) | 14 hr at 50% load |
| Run time (propane, 20 lb tank) | 10.5 hr |
| Engine | 224 cc |
| Noise and safety | |
| Rated noise | 68 dBA |
| CO shutoff | Yes |
| CARB compliant | No |
| Build | |
| Starting | Electric and recoil |
| Wheels | Yes |
| Dimensions | 24.7 x 25 x 22.2 in |
| Weight | 127 lb |
| Warranty | 3 years |
| Released | 2024-12 |
Alternatives in this size
Champion 5000-Watt Tri Fuel
#2 in SmallFull review
A small tri-fuel generator for a house with a natural gas line or an RV owner who wants fuel options. It powers a fridge, sump pump and lights, but not 240 V loads.
Amazon $688.04$688.04
Westinghouse WGen3600DFc
#4 in SmallFull review
A small dual-fuel generator with remote start for an RV or for a fridge, lights and a sump pump in an outage. Worth the step up from the pull-start WGen3600DFcv if you want to start it from indoors.
Amazon $499$499
Compare
Compare the Champion 3650-Watt Dual Fuel with any other portable generator →
More from Champion: every Champion product ranked.