5 Best Portable Inverter Generators [In 2025]

Portable inverter generators have become increasingly popular in recent years, offering a reliable and efficient source of power for a variety of applications, from emergency home backup to outdoor activities like camping and tailgating. In this comprehensive review, we’ll take a closer look at some of the best portable inverter generators on the market, evaluating their features, performance, and value to help you make an informed purchase decision.

5 Best Portable Inverter Generators Review

Westinghouse 2800 Peak Watt Super Quiet & Lightweight Portable Inverter Generator

Overview

The Westinghouse iGen2800 is a powerful and versatile portable inverter generator, capable of producing up to 2,800 peak watts and 2,200 running watts. Powered by a 4-stroke OHV Westinghouse engine, this generator is designed to automatically adjust its engine speed to match the power demand, enhancing fuel efficiency.

Specs

• Peak Watts: 2,800
• Running Watts: 2,200
• Engine: 4-stroke OHV Westinghouse engine
• Fuel Tank Capacity: Not specified
• Runtime: Not specified
• Noise Level: 52 dBA
• Weight: 46.3 lbs
• Parallel Capable: Yes

Pros

• Powerful output for its size
• Quiet operation at just 52 dBA
• Lightweight and portable design
• Parallel capable for increased power
• Automatic engine speed adjustment for fuel efficiency

Cons

• Fuel tank capacity not specified
• Runtime information not provided

Customer Reviews

The Westinghouse iGen2800 has received positive reviews from customers, with many praising its quiet operation, power output, and overall performance. Some users have noted that the fuel tank capacity and runtime could be more clearly communicated, but overall, the generator seems to be a reliable and capable option.

WEN 2350-Watt Inverter Generator

Overview

The WEN 2,350-Watt Inverter Generator offers clean and quiet power, with a 79cc 4-stroke OHV engine that operates at a remarkably low 51 decibels at quarter load. This generator is designed to produce a pure sine wave, limiting total harmonic distortion to under 1.2 percent at full load, making it safe for sensitive electronics.

Specs

• Peak Watts: 2,350
• Running Watts: 1,900
• Engine: 79cc 4-stroke OHV
• Fuel Tank Capacity: 1 gallon
• Runtime: 5.7 hours at half load
• Noise Level: 51 dBA at quarter load
• Weight: 39 lbs
• Parallel Capable: Yes

Pros

• Extremely quiet operation at 51 dBA
• Clean power output safe for sensitive electronics
• Lightweight and portable design
• Parallel capable for increased power
• Fuel-efficient eco-mode feature

Cons

• Slightly lower power output compared to some competitors
• Potential starting power issues with some high-demand appliances

Customer Reviews

The WEN 2,350-Watt Inverter Generator has received positive reviews from customers, who appreciate its quiet operation, clean power output, and overall performance. Some users have noted that it may struggle with starting power for certain high-demand appliances, but it seems to be a reliable and efficient option for many users.

2500-Watt Gas Powered Portable Inverter Generator

Overview

This 2,500-watt portable inverter generator from AMERISUN is a compact and lightweight option that offers clean, stable power with a noise level of just 56 dB at 7 meters. It features a CO sensor for added safety and is EPA compliant for 2025.

Specs

• Peak Watts: 2,500
• Running Watts: 1,900
• Engine: 4-stroke, 80cc
• Fuel Tank Capacity: 1.06 gallons
• Runtime: Not specified
• Noise Level: 56 dB at 7 meters
• Weight: 38 lbs
• CO Sensor: Yes

Pros

• Compact and lightweight design
• Quiet operation at 56 dB
• Includes CO sensor for added safety
• EPA compliant for 2025

Cons

• Runtime information not provided
• Slightly lower power output compared to some competitors

Customer Reviews

The 2,500-watt portable inverter generator from AMERISUN has received positive reviews from customers who have used it for camping, tailgating, and home backup power. Users have praised its quiet operation and compact design, though some have noted the lack of runtime information.

Portable Inverter Generator 2300-Watt Gas Powered

Overview

The AtlanTec 2,300-Watt Portable Inverter Generator is a compact and lightweight option designed for use in various outdoor activities, from camping to tailgating, as well as for emergency home backup power. It features a 4-stroke OHV engine and an ECO mode for efficient operation.

Specs

• Peak Watts: 2,300
• Running Watts: 1,800
• Engine: 4-stroke, 80cc
• Fuel Tank Capacity: 1.1 gallons
• Runtime: 8 hours at 50% load
• Noise Level: 54 dBA
• Weight: Not specified
• ECO Mode: Yes

Pros

• Compact and lightweight design
• Quiet operation at 54 dBA
• Fuel-efficient ECO mode
• Good runtime of 8 hours at 50% load

Cons

• Weight not specified
• Slightly lower power output compared to some competitors

Customer Reviews

The AtlanTec 2,300-Watt Portable Inverter Generator has received positive reviews from customers who have used it for camping, tailgating, and emergency power. Users have praised its quiet operation, fuel efficiency, and overall performance.

Generac 3,800-Watt Dual-Fuel Portable Inverter Generator

Overview

The Generac 3,800-Watt Dual-Fuel Portable Inverter Generator offers the flexibility to run on either gasoline or propane, making it a versatile option for a variety of applications. It features an easy-to-use push-button electric start, COsense technology for carbon monoxide detection, and an intelligent LED display for monitoring power output and fuel consumption.

Specs

• Peak Watts: 3,800
• Running Watts: 3,300
• Engine: Not specified
• Fuel Tank Capacity: Not specified
• Runtime: Not specified
• Noise Level: Not specified
• Weight: Not specified
• Dual-Fuel Capable: Yes (Gasoline and Propane)
• COsense Technology: Yes

Pros

• Dual-fuel capability (gasoline and propane)
• Push-button electric start for easy operation
• COsense technology for carbon monoxide detection
• Intelligent LED display for monitoring power and fuel

Cons

• Specifications like runtime, noise level, and weight not provided

Customer Reviews

At the time of writing, there were no customer reviews available for the Generac 3,800-Watt Dual-Fuel Portable Inverter Generator, as it seems to be a relatively new product on the market.

Buying Guide: Choosing the Best Portable Inverter Generator

Power Output

• Consider the peak and running wattage requirements of the devices and appliances you plan to power with the generator.
• Choose a generator with a power output that exceeds your needs, allowing for future growth or unexpected power demands.

Runtime and Fuel Efficiency

• Look for generators with larger fuel tanks and efficient engine designs that can provide extended runtimes, especially important for emergency backup or extended use.
• Features like ECO mode can help optimize fuel consumption and runtime.

Noise Level

• Portable inverter generators are generally much quieter than traditional generators, but noise levels can still vary.
• Consider the noise level, especially if you plan to use the generator in noise-sensitive environments like campsites or residential areas.

Portability and Weight

• Look for lightweight and compact generators with built-in handles or wheels for easy transportation and storage.
• The weight of the generator may be an important factor, depending on your intended use and the distances you need to move it.

Additional Features

• Consider optional features like parallel capability, CO sensors, and digital displays for added convenience and safety.
• Ensure the generator meets relevant safety and emissions standards, such as EPA and PGMA compliance.

FAQ

What is the difference between a traditional generator and an inverter generator?

The main difference is that inverter generators use a different type of alternator to produce cleaner, more stable power that is safe for sensitive electronics, while traditional generators produce a more “raw” form of AC power. Inverter generators are also generally more fuel-efficient and quieter in operation.

How do I determine the power requirements for my devices and appliances?

You can find the power requirements (in watts) for most devices and appliances on their labels or in the manufacturer’s specifications. Add up the wattage of the items you need to power simultaneously to determine the minimum generator size you’ll need.

What is the benefit of a dual-fuel generator?

Dual-fuel generators, like the Generac model in this review, offer the flexibility to run on either gasoline or propane. This can be useful in situations where one fuel type may be more readily available or affordable than the other, or if you want to have a backup fuel option on hand.

How important is the noise level of a portable generator?

Noise level is an important consideration, especially if you plan to use the generator in noise-sensitive environments like campgrounds or residential areas. Quieter generators, like those with noise levels under 60 dBA, are preferable for these situations.

Should I choose a generator with a CO sensor?

Generators that include a carbon monoxide (CO) sensor, like the AMERISUN model reviewed, provide an added layer of safety by automatically shutting off the generator if dangerous CO levels are detected. This can be a valuable feature, particularly for indoor or enclosed use.

Conclusion

Portable inverter generators offer a versatile and reliable source of power for a variety of applications, from emergency home backup to outdoor activities. The models reviewed in this guide, including options from Westinghouse, WEN, AMERISUN, AtlanTec, and Generac, all provide a range of features and capabilities to suit different needs and budgets. By considering factors like power output, runtime, noise level, portability, and additional features, you can choose the best portable inverter generator to meet your specific requirements.