The A-iPower SUA4300iD and the Champion 4500W Wireless Start Inverter are evenly matched, rated 3.5 and 3.5. The A-iPower SUA4300iD leads on fuel options and value. The Champion 4500W Wireless Start Inverter wins on run time. The A-iPower SUA4300iD costs $300.01 less ($599.99 vs $900).
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.
Amazon $649.99 A-iPower $599.99A 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 $900Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Each factor is scored 0-100 against the same fixed reference points for every mid-size inverter generator; a clear win is highlighted. How we rank explains each one.
| Factor weight | A-iPower SUA4300iD | Champion 4500W Wireless Start Inverter |
|---|---|---|
| Overall rating | 3.5/5 | 3.5/5 |
| Value 30% | 94 $0.17 per running watt | 73 $0.26 per running watt |
| Quiet 20% | 19 63 dBA at light load, maker rating | 31 61 dBA at light load, maker rating |
| Run time 15% | 12 7.5 hours on a tank at 25% load | 67 14 hours on a tank at 25% load |
| Fuel options 10% | 70 gasoline or propane | 0 gasoline only |
| CO safety 10% | 100 shuts off when carbon monoxide builds up | 100 shuts off when carbon monoxide builds up |
| Warranty 10% | 50 3-year warranty | 50 3-year warranty |
| Starting 5% | 50 starting method not stated (neutral score used) | 100 electric start with a remote fob or app |
| A-iPower SUA4300iD | Champion 4500W Wireless Start Inverter | |
|---|---|---|
| Output | ||
| Gasoline | 3,450 W running, 4,300 W starting | 3,500 W running, 4,500 W starting |
| Propane | 3,100 W running, 3,900 W starting | - |
| Outlets | 2 × 120 V, L5-30 | 2 × 120 V, TT-30 (RV) |
| Parallel capable | - | Yes |
| Total harmonic distortion | under 3% | under 3% |
| Price per watt | $0.17 | $0.26 |
| Fuel and run time | ||
| Fuel | Gasoline, propane | Gasoline |
| Tank | 1.6 gal | 2.2 gal |
| Run time (gasoline) | 7.5 hr at 25% load | 14 hr at 25% load |
| Engine | 149 cc | 212 cc |
| Noise and safety | ||
| Rated noise (light load) | 63 dBA | 61 dBA |
| CO shutoff | Yes | Yes |
| Build | ||
| Starting | - | Remote, electric and recoil |
| App | No | No |
| Wheels | Yes | Yes |
| Dimensions | 19.7 x 12.2 x 18.5 in | 23.2 x 17.7 x 20.1 in |
| Weight | 54.8 lb | 100.6 lb |
| Warranty | 3 years | 3 years |
