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Genmax GM5500i - 5000/5500W Inverter Generator With Electric Start

The Genmax GM5500i is a compact inverter generator with a rated wattage of 5,000 W and a starting wattage of 5,500 W. (Read full specs)

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Description

Zoom on the Genmax GM5500i

In a few words, the Genmax GM5500i is a compact portable inverter generator perfectly suited for:

  • RV travellers looking for even more independence
  • People occasionally participating in outdoor fairs, festivals or events
  • Food truck owners who want to ensure that their business is fully self-contained and does not rely on potentially unreliable external power
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Camping and tailgating hobbyists looking for a portable power source
  • Professionals in need of safely powering high-intensity work or lighting equipment

In the upcoming sections, you'll discover its power characteristics, the array of outlets it presents, its overall portability, and the additional features it possesses.

Power & Run Time

The Genmax GM5500i in use

The Genmax GM5500i

Featuring a 312 cc Dinking OHV 4-stroke engine, the Genmax GM5500i operates using gasoline, providing 120/240V, with a running wattage of 5,000W and a starting wattage of 5,500W.

The inverter generator, rated for a noise of 62 dBA (just slightly more noisy than a normal conversation), provides flexibility in starting, offering both a simple traditional pull-start mechanism and a straightforward and intuitive electric starter (battery included).

The GM5500i boasts a fuel tank capable of holding 3.5 gallons, allowing it to run continuously for up to 13 hours (with fuel usage averaging around 0.27 gallons per hour).

As the GM5500i produces a clean sine wave, with a <3% Total Harmonic Distortion (THD), sensitive electronics may be plugged in the AC outlets safely.

Outlets

The control panel features the upcoming 5 AC outlets:

Two Duplexes 120V 20A (5-20R) GFCI
120/240V 30A (L14-30R) receptacle

Additionally, it offers 2 DC outlets: there's two 5V USB ports (USB-A) ensuring convenient charging of devices like mobile phones and tablets, for connectivity on the go.

As it features a twist-lock L14-30R receptacle, the GM5500i is transfer switch ready: in case of a power outage, you will be easily able to connect it to a breaker box and power your household.

Portability

With its enclosed inverter generator design (L21.1 x W18.5 x H24 in), the Genmax GM5500i offers superior aesthetics and operates with minimized noise levels, distinguishing itself from standard, open frame generators. The design follows the contemporary trends and is perfect for recreationally generating power.

Since the generator weighs 116.6 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, the restricted maneuverability is counteracted by its set of 2 wheels (⌀5.5") and its telecospic handle, enabling easy shifting once the generator is set in place.

Features

Panel of the Genmax GM5500i

The GM5500i's control panel

Included in the control panel of the GM5500i, a digital data center assists in tracking its status and activity by providing details on the frequency, fuel level, lifetime run hours, power output and voltage.

In addition to this info, the device’s light indicators will display if the generator is ready, its oil levels are insufficient and the generator is on overload.

From a security point of view, the generator is equipped with an overload protection (circuit breaker) and an automatic low oil shut-off, giving you a peace of mind during use.

It also benefits from Genmax's CO DETECT technology, which is designed to monitor the level of carbon monoxide present during the generator's operation. If the generator is positioned incorrectly and carbon monoxide levels rise to an unsafe level, the generator will automatically shut down.

Apart from the typical documentation and an owner's manual (opens in a new tab), which lets you start it right away, the Genmax GM5500i also is packed along with the following accessories: tool kit and funnel.

Product Videos

The Genmax GM5500i versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Genmax GM5500i compare to inverter generators of similar power (between 4500 and 5500 W).

  • In terms of its weight, the Genmax GM5500i weighs merely 116.6 pounds, earning it a spot among the lighter inverter generators within the 4500 to 5500 rated wattage category. In terms of weight, one of the champions in their power range is the WEN DF680iX, standing at just 94.8 lbs.
  • At 62 dBA, this inverter generator's noise rating is in line with the expected average for devices within its type and power category. For those who are looking for a less noisy device, we suggest the Honda EU7000iS. With just 52 dBA, it is one of the most quiet devices in this power range.
  • The GM5500i's autonomy is somewhat low end compared to devices of its type and power range, as it reaches only up to 13 hours at 25% load on a full tank. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the DuroMax XP7000iH, reaching up to 16 hours.
  • Though run time is a significant parameter, it's closely tied to the generator's fuel tank size. To get a comprehensive understanding, fuel efficiency must also be taken into account. This inverter generator can be considered as fuel-efficient, due to its low estimated fuel consumption of only 0.27 GPH (gallon per hour) at 25% load, within the aforementioned wattage range. If not satisfied with the afore-mentioned fuel consumption, you may wish to check out the DuroMax XP7000iH. With a fuel consumption of as little as 0.19 GPH, it is one of the most efficient generators currently on the market.

Price comparison

As you can see from these interactive charts, when compared to other 4500-5500W inverter generators, the Genmax GM5500i is on the cheap side of the price range.

It can therefore be a really good buy if you're looking to acquire a budget generator.

The bottom line

STRENGTHS:
  • Inexpensive
  • CO DETECT technology
  • Several accessories included
  • GFCI Outlets
  • Electric start
  • Inverter
  • Lightweight for its kind (116.6 lbs)
  • Fuel efficient
AVERAGE SPECS:
  • Acceptable noise (62 dBA)
WEAKNESSES:
  • No remote start
  • No parallel ports
  • 1-year warranty
  • Relatively low run time

Do you own the Genmax GM5500i and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterYes
Parallel capableNo
RV readyNo
FuelGasoline
Engine312 cc Dinking OHV 4-stroke
Starting systemRecoil, Electric
Warranty1 year
Power
VoltageAC: 120/240V 60 Hz, DC: 5V
Running watts5,000 W
Starting watts5,500 W
Running amps (@120/240V)41.7/20.8 amps
Peak amps (@120/240V)45.8/22.9 amps
Run time @50% load8.5 h
Run time @25% load13 h
Features
GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationInverter
AC outlets
  • 2x Duplex 120V 20A (5-20R) GFCI
  • 1x 120/240V 30A (L14-30R)
DC outlets2x 5V USB port (USB-A)
Data centerPower output, fuel level, lifetime run hours, voltage and frequency
IndicatorsLow oil, overload and output ready
Fuel tankSteel, 3.5 gal
Fuel gaugeDigital
Misc
Weight116.6 lbs
Approx. dimensions (L x W x H)21.1 x 18.5 x 24 in
Noise (lower limit)62 dBA
THD< 3%
ComplianceEPA, ANSI/PGMA G300-2023
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralBonded to frame
Accessories includedFunnel, tool kit, and battery
Country of originChina
UPC768494055455

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 Genmax

GENMAX is a new portable generator brand registered by the Chongqing Dinking Power Machinery Co. LTD., which itself was founded in 2010 and is currently located in Chongqing, China. Dinking specializes in the general motor industry and manufactures portable generators, power sources, water pumps, garden machinery and construction machinery for foreign markets. Among most notable achievements are Dinking’s exclusive contract with Hyundai and 5th place in the ranking of Chinese foreign trade exporters in general motor industry (2016). GENMAX brand portfolio includes a sizeable selection of gas-powered generators covering all common wattage categories.

Warranty Information

The Genmax GM5500i is covered under a warranty for up to 1 year. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Genmax generators, please contact the Genmax Customer Support: 1-866-960-2920.

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 wattage calculator.
ItemRunning WattsStarting Watts
At homeSump pump (1/2 hp)10502150
Furnace fan (1/2 hp)8752350
Refrigerator (energy star)1921192
Hair dryer18001900
Set of 5 LED light bulbs5555
Cell phone charger2020
Total3992 W5467 W
For campingRadiant heater13001300
RV refrigerator180600
Hair dryer18001900
Rice cooker650650
Set of 5 LED light bulbs5555
Total3985 W4405 W
For workTable saw18004500
Reciprocating saw730960
Electric fence (25 miles)250250
Total2780 W5480 W
Where can I pick up a replacement air filter? (Asked November 13, 2022)

Replacement parts can be ordered from GenMax: 1-866-960-2920.

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