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Powermate PM4500 Spec Review

The Powermate PM4500 is an open frame portable generator with a rated wattage of 3600 W and a starting wattage of 4500 W.

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Picture 1 of the Powermate PM4500
Picture 2 of the Powermate PM4500
Picture 3 of the Powermate PM4500
Picture 4 of the Powermate PM4500

Description

The PM4500 features a steel frame and a compact design with integrated wheels and handle that makes it easy to move and put in place. With 4500 starting watts and 3600 running watts, this generator is powerful enough to run small electrical appliances at any picnic, campground or tailgate and versatile enough to power tools for your next DIY project. (source: Powermate (opens in a new tab))

Zoom on the Powermate PM4500

In a nutshell, the Powermate PM4500 is a portable generator mostly geared towards:

  • RV travellers who wish to upgrade their experience to another level
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Professionals in need of safely powering high-intensity work or lighting equipment

In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed, including its emission compliance information.

Power & Run Time

The Powermate PM4500 is powered by a 224 cc Generac OHV 4-stroke engine. It delivers 120V, runs on gasoline and offers a running wattage of 3600W as well as a peak wattage of 4500W.

The generator features a conventional pull-start mechanism. It features Powermate's PowerDial™, an easy-to-use dial with three operation settings.

The fuel capacity of 5 gallons allows the PM4500 to operate for up to 19 hours with a full tank (fuel consumption around 0.26 GPH).

Outlets

The control panel features the upcoming 5 AC outlets:

Two Duplexes 120V 20A (5-20R) GFCI
120V 30A (L5-30R) receptacle

This Powermate generator features an L5-30R receptacle, enabling an easy RV connection via an L5-30P to TT-30R adaptor. However, it is still not quite RV ready.

Portability

The design of the Powermate PM4500 is a typical, open frame, with the dimensions of L26.3 x W22.9 x H21.5 in, offering support and stability and enabling the possibility of raising it above ground level. The featured design is ideal for the outdoors and all tough environments.

Since the generator weighs 105 lbs, it will be incredibly difficult to manually lift it and transport it, even though it is technically considered to 'be portable' (in the sense that it is movable). Nevertheless, thanks to its wheel kit (⌀8") and its folding handle (a decent solution to its lack of maneuverability), the generator can be easily moved, once placed the ground.

Features

Panel of the Powermate PM4500

The PM4500's control panel

Monitoring of the PM4500's status and activity is made possible by a digital data center, which provides information on the lifetime run hours and is one of the features of its control panel.

The generator allows for a quick, easy and convenient assessment of its gas level, as it is equipped with a built-in fuel gauge.

As for its security measures, the device features an overload protection (circuit breaker) and an automatic low oil shut-off, letting you use it with a peace of mind.

Besides the usual set of documentation and owner's manual (opens in a new tab) to get you promptly started, Powermate also included some oil in the PM4500's packaging.

Emissions

The Powermate PM4500 is EPA-approved and CARB-compliant. Thus, selling and purchasing this generator is allowed in each of the 50 states, including California.

Moreover, it features a spark arrestor, so it is adequate for use in forested areas.

Product Video

The Powermate PM4500 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Powermate PM4500 compare to generators of similar power (between 3500 and 4500 W).

  • Since the generator weighs in at a dry weight of 105 lbs, the Powermate PM4500 belongs in the expected weight range for devices which can produce between 3500 and 4500 rated watts. If you are concerned by weight, one of the champions in the above mentioned power range is the WEN GN400i, with a dry weight of just 66.1 pounds.
  • Since the PM4500 boasts with a run time of up to 19 hours at 25% load, it can be safely judged as a device of a higher run time than most generators of a comparable output. If concerned with autonomy, one of the products of a comparable power output, which offers the highest run time, is the Champion 200954, boasting with up to 22 hours.
  • While the run time is an important parameter, it is dependent on the fuel tank’s capacity and thus, doesn’t say much on its own unless we consider fuel consumption as well. This generator is somewhat less fuel efficient than devices of comparable output: its estimated fuel consumption reaches 0.26 GPH at a 25% load. If fuel consumption is your top priority, we suggest to check out the Westinghouse iGen4200, which has a fuel consumption of only 0.14 GPH and thus, is one of the most efficient devices in our database.

The bottom line

STRENGTHS:
  • GFCI Outlets
  • High run time
AVERAGE SPECS:
  • Decent weight (105 lbs)
WEAKNESSES:
  • No electric start
  • Low fuel efficiency

Do you own the Powermate PM4500 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterNo
PortableYes
Parallel capableNo
RV readyNo
FuelGasoline
Engine224 cc Generac OHV 4-stroke
Starting systemRecoil
Power
VoltageAC: 120V 60 Hz
Running watts3600 W
Starting watts4500 W
Running amps30 amps
Peaks amps37.5 amps
Run time @50% load14 h
Run time @25% load19 h
Features
GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets
  • 2x Duplex 120V 20A (5-20R) GFCI
  • 1x 120V 30A (L5-30R)
DC outletsNo
Data centerLifetime run hours
IndicatorsNo
Fuel tankSteel, 5 gal
Fuel gaugeYes
Misc
Weight105 lbs
Approx. dimensions (L x W x H)26.3 x 22.9 x 21.5 in
Noise (lower limit)Unknown
THDUnknown
EmissionsCARB, EPA
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil and wheel kit
Warranty3 years
Other model numbersP0081200

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

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About Powermate

Powermate’s history is somewhat enigmatic, but they claim to have been on the market for over 40 years, selling portable generators and various outdoor power equipment. What we know for sure is that in 2009, they have signed under what they call “partnership” (more accurately ownership) with the Italian PRAMAC. As of 2020, it would seem that Generac has now taken over the manufacturing of Powermate's portable generators.

Warranty Information

The Powermate PM4500 is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Powermate generators, please consult Powermate's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-800-445-1805.

Questions & Answers

What can it power?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our generator sizing calculator.
ItemRunning WattsStarting Watts
At homeRefrigerator (energy star)1921192
Hair dryer18001900
Freezer8101750
Set of 5 LED light bulbs5555
Total2857 W3857 W
For campingRadiant heater13001300
RV refrigerator180600
RV AC (11,000 BTU)10101600
Slow cooker270270
Radio100100
Total2860 W3450 W
For workGrinder14002500
Demolition hammer12601260
Bug zapper8080
Total2740 W3840 W

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