WEN 4500 Inverter Generator Review (56455i)

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The WEN 4500 generator is a promising 4500 watt inverter at a budget-friendly price.

Two potential downsides are the small number of customer reviews and the short commercial warranty.

If you don’t mind these, the WEN 4500 generator can be a great choice.

It is worth noting that people who have specific preferences like really quiet operation may prefer certain other good 4500 watt generators.

What is the WEN 56455i 4500?

The WEN 56455i 4500 is a 4500 peak watt inverter generator that positively stands out in its low price.

This makes the WEN 56455i 4500 a budget-friendly way to get extra power for situations like camping, tailgating, and DIY sessions.

WEN 4500 generator

How does the WEN 56455i 4500 perform in different categories?

The WEN 56455i 4500 performs as follows in different important categories:

Performance CategoryWEN 56455i 4500 Score*
Power Capacity7
Run Time9
Quiet Operation9
Reliability Reputation7.5
Fuel Efficiency9.5
Ease Of Use8
Price Category$$$$
Overall Expert Rating9
WEN 56455i 4500 performance scores*

*Individual reviews compare the specific model to portable generators in general and sometimes scores are based on customer input

What are the key features of the WEN 56455i 4500?

The key features of the WEN 56455i 4500 are:

FeatureWEN 4500
Generator Detail
Fuel TypeGasoline
Starting Watts4500 Starting Watts
Running Watts3500 Running Watts
Run Time @25% Load8.5 Hours
Noise Levels57 dB
Outlets(1) 120V 30A TT30R RV Outlet,
(1) Duplex Of 120V 20A 5-20R Outlets,
(2) USB Ports, (1) 12 VDC Outlet
THDLess Than 1.2%
Warranty*2 Years Limited Residential
And 90 Days Limited Commercial
Price Category**$
Check Current Price
WEN 4500 generator key features

*Warranties can vary from seller to seller

**Price category at the time of writing

What are the pros of the WEN 56455i 4500?

The pros of the WEN 56455i 4500 are:

  • Good fuel efficiency
  • Long run time
  • Relatively quiet operation
  • Budget-friendly 4500 watt inverter generator

What are the cons of the WEN 56455i 4500?

The cons of the WEN 56455i 4500 are:

  • Short commercial warranty

What are the main uses for the WEN 56455i 4500?

The main uses for the WEN 56455i 4500 are:

  • RV or regular camping
  • Tailgating
  • Small businesses like food trucks
  • Running small to medium power tools

What can the WEN 4500 generator run?

The WEN 4500 can typically run devices like a 15k BTU window air conditioner, a table saw, or a 1 HP air compressor separately.

Even with the number of watts, amps, and volts, it is not always straightforward to know the actual device combinations the WEN 4500 generator can run.

Some of the bigger machines this generator can run individually include a window air conditioner (15,000 BTU), a table saw, or a 1 HP air compressor.

You can also divide the 4500 starting watts and 3500 running watts over multiple devices.

An example of a combination the WEN 4500 generator should be able to run is a refrigerator, coffee maker, flat screen TV, and dishwasher.

Even better than these examples is looking up the power needs of the devices you want to run and figuring out whether these fit in the power capacity of a 4500 watt generator.

Are the customer reviews of the WEN 4500 positive?

Yes, the customer reviews of the WEN 4500 are typically positive.

Similar to other products, generators are not always as good as their features suggest.

To make sure the WEN 4500 inverter generator is high-quality, you also want to take a look at the reviews of the customers before you.

These are luckily very positive overall which implies that this generator has good reliability.

On top of that, other generators from the WEN brand tend to make customers happy too. This does not tell you how long the WEN 4500 will last but does give you some peace of mind.

What are the alternatives to WEN 4500?

The main alternatives to the WEN 4500 are the Westinghouse iGen4500 and the Champion 200988 4500 DF.

The WEN 4500 generator can be a good choice but you may also want to know about other inverters that have more customers and/or stand out in other areas.

If you want a high-quality 4500 watt inverter with more customer reviews, a quieter rating, and still a reasonable price, the Westinghouse iGen4500 could be the right choice for you.

You can also consider the Champion 200988 4500 DF which is pricier and slightly louder but also dual fuel and better in terms of reliability reputation.

Is the WEN 4500 generator worth it?

Yes, the WEN 4500 generator is often worth it for situations like RV camping where you need a medium amount of power.

This is one of your best bets if you want to run small to medium electronics at a relatively budget-friendly price.

While these things still apply, it is worth mentioning that there are also alternatives to the WEN 4500 generator that are better in terms of the number of reviews, noise levels, and/or reliability.

You may want to be able to run your devices on both gasoline and propane too.

WEN 4500 generator

What are the other specifications of the WEN 4500?

The other specifications of the WEN 4500 are:

SpecificationWEN 4500
Generator Detail
Voltage120 Volts
Fuel Tank Capacity2.2 Gallons
Fuel Efficiency
(kWh Per Gallon)
Outlet CoversNo
Oil Type10W-30 For 0°F to 40°F
30W For 40+°F
Or Synthetic 5W-30
Engine Displacement212cc
Recoil Pull StartYes
Electric StartYes
Low Oil ShutdownYes
Fully Enclosed DesignYes
AC Frequency60 Hz
Remote StartNo
Digital Smart LCD
Hour MeterYes
Fuel GaugeYes
Wattage MeterSimplified Version
Run Time RemainingNot Mentioned
Engine Type4 Stroke
Generator Operation
Parallel ReadyYes
Country Of OriginVietnam
Dimensions23.2″ L x 18″ W x 20.1″ H
Weight99.2 lbs (45 kg)
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Other WEN 4500 generator specifications

You can also check out the WEN 4500 generator manual for even more detailed information.

How long will a WEN 4500 generator run?

A WEN 4500 generator will run for about 8.5 hours at 50% load on a full fuel tank.

How much oil does a WEN 4500 generator take?

The WEN 4500 generator has an oil capacity of 18.6 fluid ounces which is about 0.55 liters.

How loud is the WEN 4500 generator?

The WEN 4500 generator is about 57 decibels loud.

Ratings like this are typically measured at 25% load and 23 feet (7 meters) away.

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Mats is the founder and head editor of Generator Decision. With a combination of critical thinking, tireless research, and a healthy interest in electronics he helps people find the right generators and how to use these. At this point in the journey, Mats has done research on hundreds of portable generators.