Best 3500 Watt Inverter Generator

Inverter generators come in different sizes. Even so, the 3500-watt generator is the most popular of all sizes. This is because it can power a wide range of appliances while being portable and relatively affordable.

But just like other generator sizes, 3500-watt inverter generators are available in different styles. Also, they vary in terms of noise output level, starting watts, runtime, engine capacity, type of fuel, and start method. So, if you don’t know what features to look out for, you could get lost in your search for the best model.

Lucky for you, we’ve rounded up the top 10 best 3500 watt inverter generator options to help you make your choice.

List of Best 3500 Watt Inverter Generator:

10 3500 Watt Inverter Generator Reviews

The best 3500 watt generator is not only fuel-efficient and quiet in operation, but also portable, and durable. And here is our unbiased review of the top-rated options worth considering.

1. Champion Power Equipment 200914 Open Frame Inverter Generator

Champion Power Equipment 200914 4250-Watt Open Frame Inverter Generator, Dual Fuel Technology

Highlighted Features:

  • Quick to ignite with just one pull via a manual recoil start
  • Relatively lightweight with a compact design for superior portability
  • Generates clean energy with 3% less Total Harmonic Distortion (THD)
  • Multi-touch display offers quick access to controls for excellent usability
  • Produces 4250 surge watts and 3500 running watts at 120V maximum voltage
  • Parallel capability and RV-ready with included standard 5-amp RV outlet

First up, we’ve got this unit from one of the top manufacturers of power tools and home backup generators. One of the reasons this generator is our top pick is its advanced hybrid technology. 

This feature makes it up to 50% quieter in operation and 20% lighter than any traditional 3500-watt generator. It also boasts cold start technology for ease of starting even if the temperatures drop below 40 degrees Fahrenheit.  

Although not the quietest inverter generator, this product still offers quiet operation at 64 decibels. Therefore, you will find it perfect for RVs, home backup, or tailgating. The best part? It comes RV-ready thanks to its 120V 30A (TT-30R) outlet for ease of installation and parallel-ready. Therefore, you can add two extra 2800-watt or more wattage generators for increased power output.

For enhanced and reliable performance, this unit is powered by a 4-stroke OHV engine with a 224cc capacity. Consequently, you can expect it to provide you with up to 4250 starting watts and 3500 running watts. 

And for your peace of mind in terms of its quality and durability, it is covered by a three-year warranty. You also get free technical support for its entire lifetime, a feature that few generator manufacturers offer.

Another benefit of this unit from the Champion Power Equipment brands is its dual-fuel technology. Simply, you can operate it on either propane or gasoline based on what is easily accessible to you. 

And with its 4-gallon fuel tank, this generator could provide you with a long and continuous runtime of up to 22 hours. Further, it comes with an Economy-mode feature making it much more fuel efficient.

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2. Generac 7127 iQ3500-3500 Watt Portable Inverter Generator

Generac 7127 iQ3500-3500 Watt Portable Inverter Generator Quieter Than Honda, Orange/Black

Highlighted Features:

  • Equipped with a 30-Amp twist lock outlet
  • Two variable engine speeds
  • Built-in smart LCD displays wattage meter, fuel level, and runtime
  • Generates clean and reliable power for powering of sensitive electronics
  • Ability to add two of these iQ3500 generators for more power
  • Optional Generac parallel kit is backed by a 90-day limited warranty

Available at a very competitive price, the Generac 7127 iQ3500 model is our second-best pick for various reasons. The first reason is that it utilizes advanced PowerRush technology to provide you with over 50% of starting capacity. Simply, this technology offers you additional electrical current above the rated output when you need it for reliable performance.

The generator also prides itself on being ultra-quiet thanks to its unique enclosure design. According to Generac, this model is up to 40% quieter when compared to Honda EU3000is generator models. In addition, it boasts reduced weight and size plus handles for easy portability from one location to another. Even better, the generator is housed in a steel enclosure to ensure maximum durability.

In terms of power output, it generates an impressive 3500 starting watts and up to 3000 running watts at 120V. Therefore, it will comfortably power most of your essential appliances. And if you would like to double your power, you can easily connect two extra units via a Generac parallel kit. Starting or stopping this unit is also hassle-free via its electric start feature or recoil pull start.

Powered by Generac’s OHV engine with a 212cc capacity, this unit provides you with approximately 14.1 hours of runtime on Eco-Mode. At 50% load, you can expect up to 8.9 hours of runtime with its 2.6-gallon fuel tank. So, overall, this seems like a fuel-efficient generator. However, it does not feature dual-fuel technology like the Champion 3500-watt generator.

While it does not come RV ready, it is not difficult to install once you have the adapter. Besides, it comes with a three-year warranty for both residential and commercial use. On the flip side, the manufacturer does not seem to offer lifetime technical support.

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3. WEN GN400i RV-Ready Open Frame Inverter Generator

WEN GN400i RV-Ready 4000-Watt Open Frame Inverter Generator, CARB Compliant, Black/orange

Highlighted Features:

  • Operates at 120V to generate 4000 surge watts and 3500 running watts
  • Up to 7 hours runtime at 50% load on a full 1.85-gallon fuel tank
  • Powered by an ultra-efficient 4-stroke OHV engine with a 212cc capacity
  • Built-in eco-mode switch for maximizing fuel economy
  • Easy to ignite by either its electric start or recoil pull-start cord

Next in line, we’ve got this WEN GN400i model that stands out for its incredibly affordable price tag. But even at its price, you have one of the best engines. This makes it a more powerful 3500 watt quiet generator than some more expensive models. And the best part is that it delivers clean energy free of voltage drops and spikes.

What’s more? This open-frame generator supports parallel connections just like other expensive units. All you’ve got to do is use the optional WEN parallel kit to link two more generators for increased power output. 

Additionally, it is equipped with multiple receptacles, including two 5V USB ports for charging your devices. Also, included is a 120V RV-ready TT-30R outlet for easy and quick installation.

Featuring a 1.85-gallon fuel tank, this generator is capable of providing you with over 7 hours of runtime at half load. And for increased runtime, you can simply flip the eco-mode switch. This helps minimize any unnecessary usage of gasoline. You will also be pleased to know that it is reasonably quiet with a sound rating level of around 60 dBA.

Something else you will love about this unit is its lightweight and compact design. So, if using it to power your RV, you can be sure it will not take up much space inside your trailer. It also boasts durable and quality construction backed by a 2-year warranty and support from skilled service technicians.

For maximum safety, this gas-powered generator features built-in overload protection to keep your electronics safe. It also includes a low oil and fuel automatic shutdown feature coupled with indicator lights. And for smooth usability, it incorporates a simple digital control panel.

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4. Pulsar Products G450RN Inverter Generator

Pulsar Products G450RN, 4500W Portable Quiet Remote Start & Parallel Capability, CARB Compliant Inverter Generator, 4500-Watt Gray

Highlighted Features:

  • Convenient start method via electric push-start or wireless remote start
  • Delivers 4500 surge watts and 3700 running watts at 120V
  • Integrated wheels and an extendable handle for easy maneuverability
  • Produces 63 decibels of noise at most making it virtually silent
  • Comes RV and parallel ready for ease of setup and usability
  • Powered by an ultra-efficient single cylinder 224cc OHV engine

The Pulsar Products G450RN is another incredible 3500 watt quiet generator. It offers a couple of unique features, the best one being its wireless remote start. Therefore, you can conveniently operate it from as far as 80 feet away. Or, you can use its electric push start button for manual operation.

With its 224cc 4-stroke OHV engine, this generator delivers 4500 starting watts and 3700 running watts of power. Therefore, you can comfortably use it to power most of your essential electronics for up to 12 hours. And at 50% load, you can expect up to 15 hours on 3.2-gallons of fuel. So, even without an eco-mode feature, you will still find it more fuel-efficient than some of its competitors.

Another thing we love about this product is its excellent portability. Although a little heavy, this unit is compact in size and comes with an extendable telescopic handle and wheels. Even better, it boasts an impact-resistant frame making it durable enough to withstand anything thrown at it. And with a sound level of 63 dBA, this unit runs quietly enough to let you hold a conversation at 10-feet away.

Like some of its competitors, this generator also comes RV-ready with one 30A RV outlet for ease of setup. Also included is a 5V DC USB port for battery charging, one 12V DC 8A outlet, and two AC 120V outlets. This allows you to run multiple appliances at the same time and makes installation pretty simple. In addition, it comes parallel ready, thereby enabling you to link up to two of these units for increased power output.

This gas-powered generator also features a one-year warranty on parts and another one-year labor warranty. According to different customer reviews, the manufacturer offers excellent customer service. However, it is not clear whether or not you will get lifetime technical support. 

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5. Honda Power Equipment EU3000IS 3000W Power Generator

Highlighted Features:

  • Gas-powered to provide you with clean and reliable power
  • Quiet operation at 49 to 58 decibels despite its powerful performance
  • Fuel efficient with up to 20 hours of runtime on 3.4-gal. of fuel
  • Built-in advanced CO-MINDER system for detecting carbon monoxide
  • Automatically shuts down the engine upon detecting low oil
  • Covered by a 3 full year residential and commercial warranty

With a noise level rating of 49 to 58 dBA, this Honda 3500 watt inverter generator is among the quietest options available. Essentially, its noise level is less than the sound of a normal conversation. And with a folding handle, compact design, and built-in wheels, you will definitely find this unit highly portable.

Besides its quiet operation, this generator also stands out for being fuel-efficient thanks to its patented Eco-throttle feature. So, on a 3.4-gallon fuel tank, it can provide you with a runtime of between 7.2 and 20 hours. This varies based on the load. When it comes to starting this generator, the process is simple. You can choose to use its convenient electric start or recoil start rope.

Powered by Honda’s own GX200 with a 196cc capacity, this unit might not be the most powerful in this review. However, at 120V maximum voltage, this super quiet 3500 watt generator produces up to 3000 peak watts and 2800 running watts. Therefore, you can use it to power most 13,500 BTU RV AC units and other appliances.

You could also link up two more EU3000is models for additional power courtesy of its parallel capability. While this generator does not come RV-ready, you can easily install it using an adapter.

This generator also boasts a durable and quality build to ensure you get long-lasting performance out of it. And for your peace of mind, Honda provides you with a 3-year warranty for both residential and commercial use. On the flip side, though, you only get general customer support rather than specialized technical support.

6. Champion Power Equipment 200988 4500-Watt Inverter Generator

Champion Power Equipment 200988 4500-Watt Dual Fuel RV Ready Portable Inverter Generator, Electric Start

Highlighted Features:

  • Built-in economy mode to extend engine’s life and reduce fuel wastage
  • Includes 120V 30A RV and two 120V 20A outlets for easy setup
  • Up to 21 hours runtime at 25% load on a 20-pound propane tank
  • Integrated fuel selector dial for ease of switching fuel type
  • Incorporates cold start technology to ensure quick starts at low temperatures
  • Generates reliable power at 120V maximum voltage

Champion Power Equipment is a popular and trusted brand as far as the best inverter generators are concerned. This particular model is among our top picks because of its powerful performance, versatility, and reliability. Unlike most products that are powered by gasoline alone, this unit gives you the freedom to use gasoline or propane.

In addition, it is powered by a powerful 4-stroke 212cc OHV engine, thereby providing you with up to 4500 starting watts. You also get 3150 running watts of power, which is also impressive. If running on gasoline, you can expect up to 14 hours of run time. But if you decide to run the generator on propane, you may enjoy up to 22 hours runtime on a 2.3-gallon fuel tank.

Similar to the other champion 3500-watt generator in this review, this model also comes RV and parallel ready. Basically, you can directly connect it to your RV without the need for an adapter thanks to its 120V 30A RV outlet.  And if you want to double your power, you could get an optional parallel kit and link two more similar units. Best of all, the kit includes all the necessary mounting hardware, including screwdriver and wrench for easy installation.

At 61 dba, this generator is not noisy as its sound level is equivalent to that of a normal conversation. And when it is 23 feet away, you will find it virtually silent, thereby ensuring you don’t disturb your neighbors. The best part is that it gives you the flexibility to start it via an electric or recoil start.

In doubt about its durability or quality? You can rest easy because this unit is covered by a limited 3-year manufacturer’s warranty. And to sweeten the deal further, it is backed by a free lifetime and reliable technical support. Therefore, if you ever experience any kind of mechanical issue, you can be sure to get the right help.

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7. Westinghouse Outdoor Power Equipment iGen4500DFc Generator

Westinghouse iGen4500DFc Super Quiet Dual Fuel Portable Inverter Generator, 4500 Peak Watts & 3700 Rated Watts, Remote Electric Start, Gas & Propane Powered, RV Ready, CO Sensor, Parallel Capable

Highlighted Features:

  • Economy-mode switch included ensuring better fuel efficiency
  • Convenient startup via electric, recoil, or wireless remote start
  • Compact design with extendable telescopic handle and wheels for portability
  • Variable engine speed for maximum power efficiency
  • Easy to set up thanks to its 120V Duplex household and RV-ready outlet
  • Displays load, power output, volts, and runtime on its real-time LED screen

Want to know one of the reasons this particular product deserves to be on this list of the best 3500-watt inverter generators? Well, first is because of its quiet operation. This unit features low tone mufflers, a double-insulated enclosure, and asymmetrical cooling fans to minimize noise. Therefore, at 52 dBA noise levels, you’ll most likely find it to be the quietest 3500 watt generator available.

If you plan to use this generator to power your RV, this model comes RV-ready. Basically, it comes equipped with a TT-30R outlet for ease of installation without an adapter. You will also be happy to know that you can conveniently run this unit on gasoline or propane. It depends on what is readily accessible to you or which fuel you find more efficient.

Additionally, this quiet 3500 watt RV generator is very powerful, which explains its relatively high price tag. At 120V maximum voltage, it will provide you with 4500 starting watts and 3700 running watts of power. This, therefore, makes it a perfect power solution for emergency backup, RV camping, or tailgating. Best of all, you can increase its power output since it comes parallel ready.

Also worth mentioning is that this generator is powered by a strong OHV 4-stroke engine with an impressive 224cc capacity. This explains why it can deliver reliable and consistent power. And when it comes to runtime, you can run it for up to 18 hours on a 3.4-gal full fuel tank. But of course, this time may reduce if powering 50% or 100% load.

Another thing we love about this product is its 3-year manufacturer’s warranty on parts and labor. Therefore, you can trust that the generator is made from quality parts to ensure long-lasting performance. In addition to this, it is backed by lifetime technical support.

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8. PowerSmart PS5040 4200W Inverter Generator

PowerSmart PS5040 4200W Inverter Generator

Highlighted Features:

  • Offers up to 10 hours of runtime when operating on 50% load
  • Quick to ignite via pull start on just a single pull
  • Produces 4200 peak watts and 3500 running watts of power at 120V
  • Includes a multi-function display with simple controls for excellent usability
  • Gas-powered to deliver clean and consistent power for sensitive electronics
  • RV-ready with parallel capability for ease off linking higher inverter units

PowerSmart is a relatively new brand in the power tool market compared to brands like Champion Power Equipment. Even so, the company prides itself in manufacturing high-quality and dependable tools like this PS5040 inverter generator model. Powered by a 4-stroke 224cc OHV engine, this unit is capable of generating 4200 starting watts and 3500 running watts. This makes it a very powerful generator considering its price.

Designed to run on a 2.54-gallon fuel tank, this generator will provide you with about 10 hours of operation on half load. But you can always maximize its runtime by simply engaging the eco-mode switch to increase its fuel efficiency. Best of all, you can double up this unit’s power output by using the optional parallel kit.

While this product is not as quiet as the Honda 3500 watt inverter generator, it still does boast quiet technology. At 61 dBA when running on maximum surge power, this unit is as loud as the sound of a normal conversation or laughter. And you what the best part is? This unit is not only light in weight but also, compact in size for ease of portability.

Another outstanding feature of this product is its durable steel construction designed to ensure it can withstand all elements. Even better, this gas-powered generator is covered by a limited 2-year warranty so you can buy it with confidence. The downside is that it is not clear whether the manufacturer offers lifetime technical support or not.

This portable unit is pretty easy to install. Do you know why? First, it’s because it comes RV-ready with a 30A (TT-30R) outlet. Secondly, it boasts two 120V 20A outlets for household appliances. As such, installation is plug-and-play since you don’t need an adapter.  

9. Briggs & Stratton P40500 PowerSmart Series Inverter Generator

Briggs & Stratton P40500 PowerSmart Series Inverter Generator

Highlighted Features:

  • Automatically regulates engine speed to reduce fuel consumption and noise
  • Covered by a limited 3-year warranty and technical support
  • Up to 16 hours of runtime on a single 3.5-gal tank when on 1/4 load
  • Built-in CO Guard shutdown technology for added protection
  • RV-ready with a 120V 30A RV outlet but no parallel capability
  • Generates 4500 starting watts and 3700 running watts of smoother power

If you are not working with a tight budget, you might want to consider this premium 3500 watt inverter generator. Featuring four 120V 20A outlets, a 120V 30A RV outlet, and two USB ports, this unit lets you power multiple devices simultaneously. It also makes installation easy since you won’t require an adapter to power your RV.

This Briggs & Stratton P40500 model comes in a protective shell designed to protect its internal components from damage. Consequently, you get to enjoy a durable performance. The shell also comes in handy in keeping this generator’s noise down to ensure silent operation. As such, it boasts a noise level rating of around 60 dBA at 7 meters away on 25% load.

So, how much power does this gas-powered unit generate? Well, this product operates at 120V to produce 4500 peak watts and 3700 running watts. Therefore, you can count on it to provide you with consistent power to ensure you stay connected for many hours. This is because when at 25% load, this unit can operate for up to 16 hours on a 3.5-gallon fuel tank.  

Another feature that makes this unit a powerful super quiet 3500 watt generator is its B&S 4-stroke OHV engine. The engine has a higher capacity of 224cc, which is the reason it offers reliable power. In terms of the start method, you can only ignite this generator via an electric start at the push of a button. And compared to a recoil start, this method is easy to operate.

Similar to most products in this review, this generator model is also relatively lightweight and small in size. And for even easier portability, it comes equipped with a telescoping handle with an extendable design. Its usability is also something you will love thanks to its built-in multi-functional control panel.

10. PREDATOR 3500 Watt Super Quiet Inverter Generator

PREDATOR 3500 Watt Super Quiet Inverter Generator

Highlighted Features:

  • Built-in throttle switch for reduced fuel consumption and more runtime
  • Equipped with cast wheels and handle for smooth maneuverability
  • Powered by an ultra-efficient and air-cooled OHV engine
  • Produces 3500 surge watts and 3000 running watts at 120V maximum voltage
  • Operates for up to 11 hours at 25% load
  • Housed in a super-quiet enclosure for quiet operation at only 57 decibels

If you are looking for a mid-range generator that is super quiet, this Predator 3500 model ticks off all of those boxes. With a noise level output of 57 dBA and a super-quiet enclosure, you will find this unit virtually silent. Simply, these predator generator decibels are similar to the sound of a normal conversation. This product also incorporates a foldable handle, compact design, and wheels for superior portability.

This super quiet 3500 watt generator features a high-capacity 2.6-gallon fuel tank that utilizes gasoline alone. Therefore, on a single tank, this unit will provide you with a runtime of 11 hours at 1/4 load. Considering its price, you will find it very fuel-efficient. While it does not feature an eco-mode switch, you do get an electronic speed control mode for maximizing fuel economy.

The Predator 3500 is powered by a 224cc OHV gas engine, which is one of the most efficient engines. As a result, it can deliver 3500 starting watts and 3000 running watts of consistent power. This, therefore, makes it the perfect solution for an off-grid power source. Best of all, it supports parallel capability, thereby allowing you to increase its overall power output with ease.

Similar to most of its competitors, this generator is also easy to start via an electric start. But in case the battery dies, you can start it via a recoil pull start. Another thing we love about this product is its digital LCD display that allows you to monitor its oil levels. And for ease of installation, it comes with a 30 Amp RV adapter for use right out of the box.

Besides being fully enclosed to ensure its internal parts are not damaged, this product also features durable copper components. This helps ensure you enjoy a long-lasting performance. Even better, it is backed by a 2-year warranty against material defects and poor workmanship. However, you don’t get lifetime technical support as it is with some of its competitors like the champion 3500-watt generator.

What Can a 3500 Watt Inverter Generator Run?

The best 3500 watt inverter generator produces clean and fuel-efficient power that is capable of running many things. However, you must confirm the wattage of each appliance you plan to power before using this device. Some of the things this generator can run include:

RV or tailgating

This generator can run a small air conditioning system, a mini-refrigerator, freezer, and lights all at once. You can also use it to run a coffee maker, DVD player, Television, electric heater, and a hairdryer but not simultaneously.

3500 Watt Inverter Generator

If tailgating, the generator will run your heaters and all the lights without any issues. However, you can’t use it to power your heater, air conditioners, and grill concurrently.

Power outage at home

In case of a blackout, you can use your 3500-watt generator to run all the essential appliances in your home. These include all the lights, T.V.s, and a couple of small appliances.


This generator can handle the most common power tools at worksites. For instance, you could run an air compressor with 1200 watts, and a circular saw with around 1400 watts at once. Other tools you could run with this generator are a chainsaw (1500 watts), an electric drill (600 watts), and an electric leaf blower (1000 watts).

3500 Watt Inverter Generator

Small office

In a small business or office setting, this generator can provide you with consistent power for hours. It can run most of the appliances, including lights and fans during an extended power outage.


Interested in learning more about the best super quiet 3500 watt generator options currently available on the market? Check out these commonly asked questions.

1. Are 3500 watts generators worth buying?

Yes, and for many reasons. First, they are efficient and generate clean energy enough to run all essential appliances concurrently. Secondly, these generators are perfect for both residential and commercial usage. The best part is that they are designed to be portable and are relatively affordable.

2. What can a 3500 watt inverter generator run?

Essentially, it can power a wide range of appliances, including most of your home’s smaller gadgets like a mini-refrigerator. You can also use it to run things like TVs, air conditioners, hairdryers, a blender, a laptop, and even a space heater. Simply put, it can run anything below 3500 watts.

3. Is a 3500 watt generator enough for RV?

Yes. You can use the best 3500 watt quiet generator to run just about any size RV. But overall, it depends on the number of appliances you plan to power. For small appliances, you can run them simultaneously, but for bigger ones, you should do it one at a time.

4. Does Honda make a 3500 watt inverter generator?

Yes, they do, but they are a bit pricey compared to generators from its competitors. Their most popular and best model is the EU3000IS 3000W Portable Power Generator, which stands out for its super-quiet operation. This unit is also fuel-efficient with parallel capability for ease of increasing its power output.

5. Can I power my house with a 3500 watt generator?

You certainly can. In fact, it makes an excellent solution as an emergency backup. However, it will depend on the size of your house and how many appliances you would like to run concurrently. For instance, it would work fine if you’re just powering only your kitchen’s essential appliances.

6. How many amps can a 3500 watt generator handle?

At a standard 120V power supply, a 3500 watt generator can handle 29 amps. Even so, if your RV is rated 30 Amp, you should not have any problem running this generator. However, at 240V maximum voltage, a generator with this wattage can only handle 14 to 15 Amps.

Final Words

Overall, the best 3500 watt inverter generator largely depends on your power needs. The reason being some models offer up to 4500 starting watts, thereby making them more powerful. In addition, some generators offer longer runtime than others.

Even so, the Champion Power Equipment 200914 Open Frame Inverter Generator is our overall top pick. Do you know why? It’s because it generates up to 4250 starting watts of power and offers the parallel capability for increased power output. Best of all, it comes at an affordable price.

However, if you want a very quiet product, we recommend the Honda Power Equipment EU3000IS 3000W Power Generator. This is because its noise output is rated between 49 and 58 decibels while most generators have a rating of around 60 dBA.