PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert review: our full analysis
Brand: PowerSmart · Ranked 39th of 174 · Our methodology
7.5/10 Power7.0 Runtime9.0 Noise6.2 Features8.0 Portability6.6 Watts per dollar7.7 Dotted line: average of the 174 models. Relative scores based on specs, no hands-on testing. Where to buy Today's best priceTypical price: $500–$800 Check best price Affiliate link: As an Amazon Associate we earn from qualifying purchases.Not clearly published by the manufacturer, take with caution: runtime, noise level, outlets.
Pros
- 3.43-gallon tank rated 10 hours at 50% load.
- Electric start, CO shutdown and parallel capability.
- Four 120 V 20 A outlets plus a 30 A RV receptacle.
Cons
- 89 lb: relies on its wheel kit to move.
- Manual lists 67 dB at 23 ft (web page shows 71 dB at 7 m).
Best for
- RVs and travel trailers, through its TT-30R outlet
- Essential home backup with clean power for electronics
Specifications
| Type | Gas inverter (inverter: clean power) |
|---|---|
| Running watts | 3,800 W gasoline |
| Starting watts | 4,800 W gasoline |
| Fuel | Gasoline |
| Fuel tank | 3.43 gal |
| Runtime | 18 hours at 25% load · 10 hours at 50% load |
| Noise | 67 dB(A) (manufacturer figure) |
| Weight | 89.0 lb |
| Outlets | 4 × 120 V household outlets (5-20R) · TT-30R 30 A RV outlet · USB ports · 12 V DC outlet |
| Transfer switch ready | No (no 240 V outlet) |
| Start | Electric push-button + recoil |
| CO shutoff sensor | Yes |
| Parallel capable | Yes |
| Emissions | EPA compliant |
| Engine | 223 cc |
| Warranty | 2 years |
PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert3,800 running W · Gas inverter · typical price $500–$800
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Who is it for?
The PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert is mostly suited to:
- RVs and travel trailers, through its TT-30R outlet.
- Essential home backup with clean power for electronics.
3,800 running watts: what can it power?
The PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert delivers 3,800 W continuously and up to 4,800 W for a few seconds to start motors. It handles 12 of the 14 loads on our typical list one at a time; add up the running watts of everything you run together, plus the extra starting watts of the biggest motor. As an inverter, it produces clean power suited to laptops, TVs and furnace control boards.
| Appliance | Running / starting watts | Will it run? |
|---|---|---|
| Wi-Fi router and modem | 20 W / 20 W | ✅ Yes |
| CPAP (no humidifier) | 50 W / 50 W | ✅ Yes |
| Laptop or TV | 150 W / 150 W | ✅ Yes |
| Full-size refrigerator | 700 W / 2,200 W | ✅ Yes |
| Chest freezer | 500 W / 1,500 W | ✅ Yes |
| Furnace blower (1/2 HP) | 800 W / 2,350 W | ✅ Yes |
| Sump pump (1/2 HP) | 1,050 W / 2,150 W | ✅ Yes |
| Microwave (1,000 W) | 1,000 W / 1,000 W | ✅ Yes |
| Space heater | 1,500 W / 1,500 W | ✅ Yes |
| Window AC (10,000 BTU) | 1,200 W / 3,600 W | ✅ Yes |
| RV roof AC (13,500 BTU) | 1,800 W / 2,800 W | ✅ Yes |
| Circular saw | 1,400 W / 2,300 W | ✅ Yes |
| Well pump (1 HP, 240 V) | 1,000 W / 4,000 W | ❌ Needs 240 V |
| Central AC (3-ton, soft start) | 3,800 W / 5,500 W | ❌ Needs 240 V |
Typical figures; check the label of your own appliances. One load at a time: add up everything you run together.
PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert3,800 running W · Gas inverter · typical price $500–$800
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Fuel tank and runtime
The fuel tank holds 3.4 gallons of gasoline. The manufacturer quotes 18 hours at a quarter load. At half load, it runs about 10 hours on a full tank. That is about 0.34 gallon per hour at half load, or 8 gallons for a full day of running, so plan your fuel storage for a multi-day outage.
67 dB(A): how loud is it?
The manufacturer rates the PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert at 67 dB(A), usually measured at 23 feet (7 m) and a light load. That is a typical open-frame level, comparable to a vacuum cleaner: fine for home backup at 20 feet, loud for a campground.
Outlets: home, RV and tools
Its panel offers 4 × 120 V household outlets (5-20R), TT-30R 30 A RV outlet, USB ports, 12 V DC outlet. It has no 240 V outlet: it runs plug-in appliances through extension cords, not hardwired circuits or a 240 V well pump. The TT-30R outlet plugs straight into a 30 A RV. It is parallel capable: linked to a second compatible unit with a parallel kit, the two outputs combine.
Safety features and warranty
It has electric push-button start, with a recoil cord as backup. A CO shutoff sensor stops the engine if carbon monoxide builds up around it; it does not replace distance (20 feet from the house) and CO alarms indoors. It is listed as EPA compliant; check California availability if you live there. The warranty runs 2 years (residential use).
Typical price $500–$800: good value per watt?
Relative to its running watts, the PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert scores 7.7/10 on value: an average result. Inverters always cost more per watt than open frames: compare it with other inverters. Generator prices on Amazon move a lot, especially before hurricane season: check the current price before you buy.
PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert3,800 running W · Gas inverter · typical price $500–$800
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Our verdict on the PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert
The PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert scores 7.5/10 and ranks 39th out of 174 generators analyzed. Its strengths: 3.43-gallon tank rated 10 hours at 50% load; electric start, CO shutdown and parallel capability. It is best suited to RVs and travel trailers, through its TT-30R outlet and essential home backup with clean power for electronics.
PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert3,800 running W · Gas inverter · typical price $500–$800
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Featured in our rankings
Sources
- Official PowerSmart product page (specifications)
- Amazon.com listing (availability and typical price, November 2026)
Frequently asked questions
Will the PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert run a refrigerator?
Yes: its 3,800 running watts and 4,800 starting watts cover a full-size fridge, including the compressor's startup surge.
Can the PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert power a house?
Only plug-in appliances through extension cords: it has no 240 V outlet for a transfer switch.
How long does the PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert run on a tank?
About 10 hours at half load according to the manufacturer, and 18 hours at a quarter load.
Does the PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert run on propane?
No, it runs on gasoline only.
Is the PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert quiet?
The manufacturer rates it at 67 dB(A), typical of an open-frame generator: not campground-quiet.
PowerSmart PS5046CE 4800W Electric Start Inverter with CO Alert3,800 running W · Gas inverter · typical price $500–$800
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