What are the finest inverter generators with 3500 or 3800 watts of power?

First and foremost, why use an inverter generator instead of a traditional generator? For starters, inverter generators are substantially more fuel-efficient than older, less technologically sophisticated generators.

As a result, you will save money in the long term.

Inverter generators are also significantly quieter and less obtrusive than traditional generators.

Finally, we feel that inverter generators provide a better value for money.

It’s also worth noting that the higher the Watts, the greater power.

One of the most common reasons for requiring 3500 rated or beginning Watts is to run a 15,000 BTU air conditioner.

There are a slew of additional reasons why an inverter generator with this much power is in such high demand.

It’s a safe quantity to have on hand in the event of a power outage, and it’s enough for camping, tailgating, or your RV.

They are not only used for entertainment, but they may also be quite useful in an emergency.

It wasn’t until I had my own family that I decided to invest in an inverter generator.

Knowing that my family will have a functioning refrigerator and other power sources in the event of a major storm provided me a sense of security.

Without further ado, we’ve compiled a list of the finest inverter generators that generate anywhere between 3500 and 3800 starting or rated Watts based on our expertise, reviews, research, and comparisons.

In a nutshell, these are the top 5 3500-3800 Watt Inverter Generators on the market.

  • Westinghouse iGen4200 (3500- 4200 Watt)  
  • Generac GP3500iO (3000-3500 Watt)
  • WEN 56380i (3400-3800Watt)
  • Westinghouse iGen4500 (3700-4500 Watt)
  • Generac 7127 iQ3500 (3000- 3500 Watt)

#1. Westinghouse iGen4200 (3500- 4200 Watt)

First and foremost, the well-known Westinghouse iGen4200 is a fantastic generator at an affordable price.

This open-frame hybrid portable inverter generator is a hybrid.

The hybrid technology gives it a distinct advantage in terms of fuel economy.

As a result, you will save money in the long term.

When you’re in “Efficiency Mode,” you’ll get the best results.

It is CARB and EPA compliant, and it generates clean energy.

A tool kit, oil funnel, oil, and a manual are included in the purchase.

With its TT-30R outlet at the front, this generator is popular among campers.

It comes with a strong 4-Stroke OHV engine that starts quickly.

The extraordinarily high Wattage for the price is one of the features we truly enjoy about this item.

You’ll have a hard time finding a product with this much Wattage at such a cheap price.

Returning to the iGen4200’s fuel economy, you will be pleasantly surprised.

With 2.6 gallons of petrol, it will operate for 18 hours.

At 62dBA, the self-noise is also rather low.

One of the disadvantages of this generator is that it does not have wheels.

It may be tough to carry due to its 82-pound weight.

An additional pair of hands may be useful.

The Westinghouse iGen4200 portable inverter generator is a great option in general.

Details And Technical Specifications

  • EPA-approved
  • CARB Approved
  • outlet TT-30R
  • With 2.6 gallons of petrol, the vehicle can operate for 18 hours.
  • 62dBA self-noise

#2. Generac GP3500iO (3000-3500 Watt)

The Generac GP3500iO is an open frame portable inverter generator.

In the construction business, this generator is rather common.

It’s 16 inches tall, 19 inches deep, and 17 inches broad, making it considerably more compact and portable than it seems in the photographs.

It’s also a little lighter than a standard generator, weighing in at about 74 pounds.

You won’t have any trouble powering your RV or 15,000BTU air conditioner as a camper.

There’s a 30-Amp, recoil start, 2 USB plugs, and more on the front.

It’s simple to carry since it’s pretty light for its size.

This generator can be carried by one person, however it does not feature wheels for more convenient transportation.

This unit has parallel technology, which allows you to connect a second generator for increased power output.

It can only be mirrored with another GP3500iO, though.

It’s extraordinarily powerful for its size, starting at 3500-Watts and running at 3000-Watts.

Not to mention amazingly powerful for the price.

Powerrush technology is one of the key aspects of the Generac GP3500iO that I enjoy.

In essence, it provides a 50 percent increase in startup capability.

The absence of wheels is the only drawback I’ve observed with this machine.

It’s light for a generator at 74 pounds, but it’s a lot heavier when it’s full with gas.

Aside from that, it’s a great option for RVs, camping, job sites, and home backup.

Details And Technical Specifications

  • A frame that is open
  • Only another GP3500iO may be paralleled.
  • Generator with inverter
  • 3500 watts as a starting point
  • 3000 watts for running
  • True Power Technology ensures that electricity is produced in a clean and efficient manner.
  • CARB-approved
  • RV plug with 30 amps

#3. WEN 56380i (3400-3800Watt)

The WEN 56380i is one of the most highly rated and reviewed inverter generators on the market, and for good reason.

This portable generator is incredibly strong, with a surge of 3800 Watts and a rated power of 3400 Watts.

An AC 120V NEMA TT-30R RV outlet, one 5V USB port, two three-prong 120V receptacles, and a fuel display are located on the front.

With a noise level of 57dBA, this generator is very quiet for its size.

Many people claim it is even quieter than the well-known Honda generator.

The generator is rather hefty without any fuel, weighing in about 99 pounds.

Thankfully, the wheels and longer trip handle make traveling much simpler.

One of the things I admire about this device is how dependable it is.

Both the body and the motor are well-made and long-lasting.

I also like that this generator has an electronic start.

Another intriguing feature of the WEN 56380i is the possibility of purchasing it as an open frame for a substantially lesser price.

It has a 30-amp RV plug, as do many inverter generators.

Another important feature is the Eco mode, which helps you save money on gas.

Overall, the WEN 56380i is a reliable generator that will not disappoint you.

It comes highly recommended from us.

Details And Technical Specifications

  • EPA III (Environmental Protection Agency)
  • CARB Approved
  • Power that is free of pollution
  • Watts: 3800 for the start and 3400 during the run
  • 57dBA of self-noise
  • Wheels
  • Handle for travel
  • Start recoiling
  • 4-stroke OHV engine with 212cc displacement
  • Frame that is closed

#4. Westinghouse iGen4500 (3700-4500 Watt)

The highly rated Westinghouse iGen4500 is the next portable inverter generator on the list.

It is very powerful, with a maximum output of 3700 watts and a peak output of 4500 watts.

This generator is 104 pounds in weight.

It is highly handy and simple to travel with since it has wheels.

The Westinghouse iGen4500, on the other hand, is very fuel-efficient in “efficiency mode.” With just 1 gallon of petrol, you can obtain roughly 11 hours of driving time.

You get 18 hours of run time on a quarter load.

The fuel display quantity, remaining run time, lifetime hours, power output, and voltage output are all shown on the front.

It is quite quiet, averaging 52-55 decibels.

The capacity to power a midsized air conditioner of 15,000 BTU is something I truly enjoy about the iGen4500.

It’s easy to have a discussion close to it without the background noise being too distracting.

Two 5 volt USB ports are included on the front of the device for connecting your laptop, tablets, phones, and other devices.

It is also one of the biggest inverter generators on the market, producing approximately the maximum number of Watts for the price.

If the battery dies, it may be started using a push start, wireless start, or recoil.

This generator will help a lot of folks who need a generator for their RV.

A 30 amp receptacle is ready to use on the front.

The numerous complaints about Westinghouse’s bad customer service is one of the few drawbacks.

It has a very high voltage, is extremely fuel-efficient, robust, silent, has an efficient mode, has exceptional ratings, and is extremely dependable.

It comes highly recommended from us.

Details And Technical Specifications

  • Peak power of 3700 watts and 4500 watts
  • Compatible with RVs
  • Start with a push of a button
  • Start with a wireless connection
  • 104 pound weight
  • Inverter
  • outlet TT-30R
  • Fuel level, remaining run time, lifetime hours, power output, and voltage output are all shown.
  • Powered by Gas
  • With a noise level of 52 decibels, it’s quite quiet.
  • Efficient mode is a feature.
  • Two USB ports (5V)
  • Power that is free of pollution
  • CARB-approved

#5. Generac 7127 iQ3500 (3000- 3500 Watt)

Finally, the Generac 7127 iQ3500 portable inverter generator is a solid choice.

The 7127 iQ3500, according to Generac, is 40% quieter than the well-known Honda.

It has a simple electric start or recoil mechanism.

The first surge generates 3500-Watts, although the system is rated at 3000-Watts.

The steal enclosure is one of the Generac 7127 iQ3500’s most distinctive and advantageous features.

It’s highly tough and can tolerate extreme temperatures.

Many workers in the construction business and others who live off the grid profit greatly from it.

This generator has been proved to power a 15000 BTU air conditioner.

It also has parallel capabilities, so you may add another Generac 7127 iQ3500 if necessary.

This generator, like other inverter generators, is rather quiet.

The inability to return this item is one of the most serious drawbacks.

Many consumers who got a faulty item had trouble having it fixed.

Another downside is the lack of wheels, which makes travel more difficult.

The Generac 7127 iQ3500, on the other hand, is an excellent alternative for anybody looking for a long-lasting inverter generator.

Details And Technical Specifications

  • Having the ability to add parallel
  • Watts: 3500 at the start and 3000 at the finish
  • Enclosure made of steal for long-term use
  • Inverter

A Quick Review

Here are the top 5 inverter generators for 3500-3800 watts.

  • Westinghouse iGen4200 (3500-Watt) 
  • Generac GP3500iO (3500-Watt)
  • WEN 56380i (3800-Watt)
  • Westinghouse iGen4500 (3700-Watt)
  • Generac 7127 iQ3500 (3500-Watt)


What’s the difference between a portable generator and a stationary generator?

A generator is a device that converts mechanical energy to electrical energy.

It’s a battery that can be used to power gadgets on the go.

What is a portable inverter generator, and how does it work?

An inverter generator uses less energy and is quieter than a traditional generator.

This is because the engine throttles in response to the amount of energy required, rather than running at full throttle all of the time.

What is the weight of a generator?

Most generators weigh between 21 and 235 pounds, with a few outliers.

Keep in mind that the heavier generators often have wheels built in for better transportation.

What is the weight of an inverter generator?

Inverter generators typically weigh between 21 and 115 pounds.

When should you use a generator?

Generators are useful for camping, tailgating, off-grid living, RV vacations, and other situations when you require portable electric power.

They’re also necessary if your house loses power.

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Written by Bob Matsuoka
Bob Matsuoka is a blogger and founder of RVing Beginner blog. He has been blogging for over five years, writing about his own family’s RV adventures, tips for people who are interested in buying an RV or taking their family on an adventure by RV.