Champion 4500W Dual Fuel Inverter
#7 in Mid-sizeFull review
A quiet dual-fuel inverter for 30 A RVs and outage backup of a fridge, freezer and a few circuits. Propane lets you store it ready to run.
Amazon $988.62$988.62
3.5/5
An affordable dual-fuel inverter for RV owners and light home backup that needs to run an air conditioner or fridge on either fuel. Wheels and CO shutoff make it easy to live with.
- 3,450 / 4,300 WRunning / starting
- Gasoline, propaneFuel
- 7.5 hr at 25% loadRun time
- 63 dBA at light loadNoise
- 54.8 lbWeight
- $0.17Price / W
Check price at Amazon$649.99Check price at A-iPower$599.99
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- About 7.5 hours per tank at light load, plus automatic switchover to propane
- Enough power for a 30 A RV air conditioner at about 55 lb with built-in wheels
- Shuts itself off if carbon monoxide builds up
- Three-year warranty and CARB compliance
Cons
- No USB ports
- A-iPower’s noise figures conflict (52 vs 63 dB)
- Parallel capability is not stated
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 | SUA4300iD |
|---|---|
| Output | |
| Gasoline | 3,450 W running, 4,300 W starting |
| Propane | 3,100 W running, 3,900 W starting |
| Outlets | 2 × 120 V, L5-30 |
| Total harmonic distortion | under 3% |
| Price per watt | $0.17 |
| Fuel and run time | |
| Fuel | Gasoline, propane |
| Tank | 1.6 gal |
| Run time (gasoline) | 7.5 hr at 25% load |
| Engine | 149 cc |
| Noise and safety | |
| Rated noise (light load) | 63 dBA |
| CO shutoff | Yes |
| Build | |
| App | No |
| Wheels | Yes |
| Dimensions | 19.7 x 12.2 x 18.5 in |
| Weight | 54.8 lb |
| Warranty | 3 years |
Alternatives in this size
Ryobi RYi4022X
#8 in Mid-sizeFull review
A simple open-frame inverter for RVs and outage backup with certified low-CO safety. Enclosed rivals are quieter for similar money.
Ryobi $889$889
Champion 4500W Wireless Start Inverter
#10 in Mid-sizeFull review
A quiet mid-size gas inverter for RV owners who want to start it from inside the camper. Strong overnight run time on one tank.
Amazon $900$900
Compare
Compare the A-iPower SUA4300iD with any other inverter generator →
More from A-iPower: every A-iPower product ranked.