Predator 3500 Super Quiet
#12 in Mid-sizeFull review
A 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 $799.99$799.99
3.3/5
An RV-ready mid-size inverter with electric start at a modest price. It lacks CO shutoff, which newer models include.
- 3,400 / 3,800 WRunning / starting
- GasolineFuel
- 8.5 hr at 50% loadRun time
- 57 dBA at light loadNoise
- 99.2 lbWeight
- $0.21Price / W
Check price at Amazon$699.99
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Push-button start
- Plugs straight into a 30 A RV
- Sold in California
- Clean enough power for laptops and phones
Cons
- No carbon monoxide shutoff
- Gasoline only
- About 99 lb, so it rolls rather than carries
- Two-year warranty is shorter than most rivals
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 | 56380i |
|---|---|
| Output | |
| Gasoline | 3,400 W running, 3,800 W starting |
| Outlets | 2 × 120 V, TT-30 (RV), USB |
| Parallel capable | Yes |
| Total harmonic distortion | under 1.2% |
| Price per watt | $0.21 |
| Fuel and run time | |
| Fuel | Gasoline |
| Tank | 2.2 gal |
| Run time (gasoline) | 8.5 hr at 50% load |
| Engine | 212 cc |
| Noise and safety | |
| Rated noise (light load) | 57 dBA |
| CO shutoff | No |
| Build | |
| Starting | Electric and recoil |
| App | No |
| Wheels | Yes |
| Dimensions | 23.2 x 18 x 20.1 in |
| Weight | 99.2 lb |
| Warranty | 2 years |
Alternatives in this size
Pulsar PGD40ISCO
#13 in Mid-sizeFull review
A 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 $450.07$450.07
Honda EU3200i
#15 in Mid-sizeFull review
For RV owners who want a quiet, carry-able Honda that can start a rooftop air conditioner on its own. Shoppers who may want to parallel later should look elsewhere.
Amazon $2,799 Amazon (50-state EU3200IAC) $2,899 Camping World $2,399$2,399
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