Search  for anything...

PowerSmart 4400 Watt Home Backup Portable Open Frame Generator with Inverter Technology, Gas Powered, RV Ready 30A Outlet,Lightweight for Home Backup Use & Camping EPA Compliant

  • Based on 319 reviews
Condition: New
Checking for product changes
$399.99 Why this price?

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.


Availability: Only 5 left in stock, order soon!
Fulfilled by Amerisun Inc

Arrives Dec 26 – Dec 28
Order within 18 hours and 58 minutes
Available payment plans shown during checkout

Size: 4400W


Features

  • Power WattageWith inverter technology, it produces 4,400 peak watts and 3,600 running watts of clean power (less than 3% THD). Perfect Generators for Home backup Emergency Use & Outdoor Camping Hunting Work Site
  • Noise Level: As low as 76DB at 23feet with single cylinder with forced air-cooling system to reduce operating noize, 11hours running time at 50% load per tank
  • Power PanelIncludes (1) 120V RV-ready 30A L5-30R outlet, (2) 120V 20A NEMA 5-20R household outlets, and (1) 12V DC outlet for charging batteries.
  • Parallel ReadyParallel-ready panel allows you to increase output by connecting two 4400-watt open frame inverters (parallel kit is sold separately).
  • Feature with low-oil shutdown, overload protection, and Eco-mode for energy-conscious users. A digital hour meter monitors voltage, frequency, and operating hours.
  • Technical SupportFeatures an EPA compliant 223cc 4-stroke gas engine, and a two-year warranty with FREE lifetime technical support from experts.

Brand: PowerSmart


Wattage: 4400 watts


Fuel Type: Gas


Power Source: Gas-Powered


Recommended Uses For Product: Camping


Item Weight: 68 Pounds


Voltage: 120 Volts (AC)


Output Wattage: 4400 Watts


Special Feature: Portable, Foldable Handle, Super Quiet, Extra-Long Run Time


Included Components: Wrench


Brand: ‎PowerSmart


Wattage: ‎4400 watts


Fuel Type: ‎Gas


Power Source: ‎Gas-Powered


Recommended Uses For Product: ‎Camping


Item Weight: ‎68 Pounds


Voltage: ‎120 Volts (AC)


Output Wattage: ‎4400 Watts


Special Feature: ‎Portable, Foldable Handle, Super Quiet, Extra-Long Run Time


Included Components: ‎Wrench


Color: ‎4400 Watts


Product Dimensions: ‎21.2"L x 17.7"W x 20.9"H


Material: ‎ABS


Model Name: ‎4400-Watt Open Frame Inverter Generator


Engine Type: ‎4 Stroke


Ignition System Type: ‎recoil start


Tank Volume: ‎2.5 Gallons


Engine Displacement: ‎224 Cubic Centimeters


Runtime: ‎16 hours


Total Power Outlets: ‎3


Frequency: ‎60 Hz


Starting Wattage: ‎4400 Watts


Running Wattage: ‎3600 Watts


UPC: ‎840432705285


Manufacturer: ‎Amerisun Inc.


Part Number: ‎MB5040B


Item Weight: ‎68 pounds


Item model number: ‎MB5040B


Size: ‎4400W


Horsepower: ‎5.9


Item Package Quantity: ‎1


Special Features: ‎Portable, Foldable Handle, Super Quiet, Extra-Long Run Time


Batteries Required?: ‎No


Warranty Description: ‎3-Year limited warranty


Date First Available: February 7, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Dec 26 – Dec 28

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • runs great
Size: 4400W
I ran this for over 13 days after Hurricane Helene. changed the oil after the first 30 hours and ran it with out any issues the rest of the time we were without power. it ran a full sized refrigerator, a dehumidifier in our crawlspace and the gas instant on hot water heater with out any issues. Run time on a full tank of gas running in the eco mode was up to ten hours depending on the load. I was able to carry it and put it in place by my self with out issue even when the tank was full. ... show more
Reviewed in the United States on October 31, 2024 by K. Hamby

  • Good product
Size: 4400W
Very good option, I highly recommend it, it fulfills its function correctly. It takes you out of a lot of trouble, I bought it for my family in Cuba and so far I am delighted with my purchase
Reviewed in the United States on December 4, 2024 by Eli Eli

  • decent machine
Size: 4400W
This machine has been working decent except for the muffler fell off after about 150 hrs of use. Apparently it shakes more than the muffler can handle. UPDATE... Now it is June 2024 The generator now has around 3,000 hrs on it and I wanted to update the review. I think this machine has broken every place that anyone has ever had one of these break... first the muffler broke off from 2 places, 2 of the gas tank mounts broke off, the rewinder went to many pieces, the engine mounts broke off letting the engine sag, and even the frame work is breaking, and the unit is a bit noisier than a Predator right from new!!! I would strongly recommend anyone to spend a little more and just get the real Predator from Harbor Freight. We have one that would be the equivalent to this one, it is the Predator 4550 inverter generator and it has between 5,000 - 6,000 hrs on it and runs great yet. And it is a lot smoother and quieter, and takes less fuel. Needless to say, we got another Predator!!!!! ... show more
Reviewed in the United States on February 20, 2024 by Amazon Customer 523

  • Strong and consistent service
Size: 4400W
Definitely worth the wait. Though I needed the generator on the day of Hurricane Helene, and Amazon promised it for Monday Sep 30, 2024. Sadly it arrived on the 4th of October just a day and a half before our power was restored. For the duration of use it did very well.
Reviewed in the United States on November 7, 2024 by Quentin Collins SF House

  • good price, thanks
Size: 4400W
would follow up later.
Reviewed in the United States on December 11, 2024 by sammyt

  • Worked great for what we needed
Size: 4400W
When I see a 4400-Watt Portable Generator with Inverter this cheap I was very skeptical. To my surprise it worked great for our camping weekend. We knew the weekend was going to be very hot (87 to 90 degrees fahrenheit) and there was no electrical connection. The first night I had filled the generator full @6pm and it ran until 6am the next morning before needing to refill. During the day I got 7-8 hrs on a full tank as the AC ran almost constantly. It is surprising light and easy to handle. The only negative for me was that it was a bit louder than other inverter generators being used around me (Mostly the Predator 3500 Harbor Freight) I only used this one weekend but at this point I would highly recommend this generator. ... show more
Reviewed in the United States on July 15, 2024 by Robert Wendt

  • Quality item for what you pay
Size: 4400W
Mine has about 10 hours on it now and I've been very impressed. I bought it for my RV because I needed something smaller in size that I could fit inside the trailer when traveling. This fits in my bathtub perfectly. I have a larger champion generator and this one seems just as good. It is much quieter than my champion on full power mode, and probably half of that on eco mode. When running on eco mode it will power my TV, lights, and 12,500 BTU air conditioner. If I bump it to full power it can easily run all that plus my microwave and any other RV appliances. It is very powerful for its size. I was hesitant after reading other reviews, but I am very happy with the purchase. ... show more
Reviewed in the United States on August 3, 2024 by Sati Auryn

  • Works great!
Size: 4400-Watt/ CO PROTECT
We got this to power us up during outages It powers way more than expected!
Reviewed in the United States on November 5, 2024 by Jwill

Can't find a product?

Find it on Amazon first, then paste the link below.