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Genmax GM1200i - 1000/1200W Inverter Generator

The Genmax GM1200i is a quiet, compact and lightweight inverter generator with a rated wattage of 1000 W and a starting wattage of 1200 W.

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Description

Zoom on the Genmax GM1200i

In summary, the Genmax GM1200i is a quiet, compact and lightweight portable inverter generator especially useful for:

  • Tailgating and campground aficionados with the desire of enjoying power anywhere they go
  • Amateur DIY lovers

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 Genmax GM1200i in use

The Genmax GM1200i

The Genmax GM1200i's engine, 57 cc Dinking OHV 4-stroke, fueled by gasoline, can deliver 120V. It provides a running wattage of 1000W and reaches a peak wattage of 1200W. Moreover, since it is parallel capable (parallel kit included), its power may be doubled if linked to a second compatible unit.

Enjoying a noise rating of 58 dBA (less noisy than a conversation at home), this inverter generator gets running thanks to a simple traditional pull-start mechanism.

The GM1200i can operate for up to 10 hours with a full tank (fuel consumption around 0.07 GPH), due to its fuel capacity of 0.7 gallon.

As the GM1200i produces a clean sine wave, with a <3% Total Harmonic Disruption (THD), sensitive electronics may be plugged in the AC outlets safely.

Outlets

The control panel provides the upcoming 2 AC outlets:

Duplex 120V 20A (5-20R)

Additionally, it features 2 DC outlets: there's two 5V USB ports (USB-A) with which you may charge electronics, for example mobile phones or tablets, conveniently.

Portability

Thanks to its closed inverter generator design (L16.5 x W9.5 x H15.7 in), the Genmax GM1200i, is more esthetical than a typical, open frame generator. This modern design aims to provide an ideal power solution to recreational users.

Since the GM1200i weighs only 25.3 lbs, it can be labeled as a portable lightweight generator. A single person should not have any problems moving it around and thus, enjoy power availability on-the-go. Its handle (molded in the case) allows you to carry it easily, further enhancing its convenience.

Good to know: This unit ranks 4th in our list of the 10 smallest portable generators.

Features

Panel of the Genmax GM1200i

The GM1200i's control panel

When the generator is ready, the generator is on overload and the oil level is too low, you will be informed by the featured light indicators.

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. It’s a welcomed additional security feature, but don’t forget to always take your generator outside (opens in a new tab).

Besides the classic documentation and an owner's manual (opens in a new tab) to get you promptly started, the Genmax GM1200i also comes with some accessories: tool kit, funnel and RV adapter are included.

Emissions

The Genmax GM1200i is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.

However, it features a spark arrestor and thus, may be used in forested areas.

In addition, the unit meets the ANSI/PGMA G300-2018 safety and performance requirements.

Product Videos

The Genmax GM1200i versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Genmax GM1200i compare to inverter generators of similar power (between 1000 and 2000 W).

  • As far as its dry weight is concerned, the Genmax GM1200i weighs just 25.3 pounds and thus, it is one of the lightest 1000 to 2000 rated wattage inverter generators.
  • When compared to devices able to produce a similar running wattage, this inverter generator and its lowest emitted noise of 58 dBA is on the noisier side. For those who are looking for a less noisy device, we suggest the Honda EU2200i. With just 48 dBA, it is one of the most quiet devices in this power range.
  • The GM1200i, falls within the average autonomy range compared to inverter generators of a roughly same power, with a run time of up to 10 hours at a 25% load and a full tank. If you consider autonomy on a single full tank as one of the deciding factors, one of the generators in the same power range that offers the highest run time is the DuroMax XP2300iH, with up to 13 hours.
  • The run time is important, but also hugely depends on the capacity of the fuel tank and doesn't mean much if we don't talk about fuel consumption as well. This inverter generator, with an estimated fuel consumption of just 0.07 GPH (gallon per hour) at 25% load, is one of the most fuel efficient generators, for the previously mentioned wattage range.

Price comparison

As you can see from this interactive chart, when compared to other 1000-2000W inverter generators, the Genmax GM1200i 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
  • Parallel kit included
  • Inverter
  • Lightweight (25.3 lbs)
  • Fuel efficient
AVERAGE SPECS:
  • Quiet, but noisy for its type (58 dBA)
  • Decent run time
WEAKNESSES:
  • No data center
  • No electric start
  • Not CARB-compliant
  • 1-year warranty

Do you own the Genmax GM1200i and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterYes
PortableYes
Parallel capableYes
RV readyNo
FuelGasoline
Engine57 cc Dinking OHV 4-stroke
Starting systemRecoil
Power
VoltageAC: 120V 60 Hz, DC: 5V
Running watts1000 W
Starting watts1200 W
Running amps8.3 amps
Peak amps10 amps
Run time @50% load6.5 h
Run time @25% load10 h
Features
GFCI outletsNo
Covered outletsYes
Automatic Voltage RegulationInverter
AC outlets1x Duplex 120V 20A (5-20R)
DC outlets2x 5V USB port (USB-A)
Data centerNo
IndicatorsLow oil, overload and output ready
Fuel tankPlastic, 0.7 gal
Fuel gaugeNo
Misc
Weight25.3 lbs
Approx. dimensions (L x W x H)16.5 x 9.5 x 15.7 in
Noise (lower limit)58 dBA
THD< 3%
ComplianceEPA, ANSI/PGMA G300-2018
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralFloating
Accessories includedFunnel, tool kit, RV adapter, and parallel cables
Warranty1 year
UPC768494055271

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 GM1200i 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 homeRefrigerator (energy star)1921192
Total192 W1192 W
For campingRV refrigerator180600
Blender400850
LED TV150150
Total730 W1180 W
For workReciprocating saw730960
Total730 W960 W

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