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 nutshell, the Genmax GM5500i is a compact portable inverter 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
- Food truck owners who do not wish to see their business interrupted under any circumstances
- Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
- Professionals who want to ensure that a power failure will not prevent them from working
Over the following sections, you'll uncover its power characteristics, the selection of outlets it offers, its overall portability, and the supplementary features it includes.
Power & Run Time
The Genmax GM5500i's engine, 312 cc Dinking OHV 4-stroke, fueled by gasoline, can deliver 120/240V. It provides a running wattage of 5,000W and reaches a peak wattage of 5,500W.
Featuring a noise rating of 62 dBA (just slightly more noisy than background music), the inverter generator is equipped with both a classic hand-operated recoil starting mechanism and a no-fuss and convenient electric starter (battery included) for starting.
Thanks to its 3.5 gallons fuel tank, the GM5500i can run continuously for up to 13 hours on a full tank (with an average fuel consumption of approximately 0.27 GPH).
Featuring a <3% Total Harmonic Distortion (THD), the GM5500i delivers a clean sine wave, guaranteeing the safety of your sensitive electronics plugged into its AC outlets.
Outlets
The control panel features the upcoming 5 AC outlets:
Additionally, it features 2 DC outlets: there's two 5V USB ports (USB-A) perfect for conveniently charging mobile phones, tablets, and other electronic devices.
The GM5500i's twist-lock L14-30R receptacle makes it transfer switch ready, enabling hassle-free connection to your breaker box for powering your home during outages.
Portability
With an inverter generator design, the Genmax GM5500i features a closed construction (L21.1 x W18.5 x H24 in), enhancing aesthetics and ensuring reduced noise levels, offering a distinct advantage over standard, open frame generators. This modern design aims to provide an ideal power solution to recreational users.
Despite its 116.6 lbs, the generator falls under the category of 'portable,' signifying its movability, although its weight may hinder easy portability. Nevertheless, thanks to its set of 2 wheels (⌀5.5") and its telescopic handle (a decent solution to its lack of maneuverability), the generator can be easily moved, once placed the ground.
Features
Monitoring of the GM5500i's status and activity is made possible by a digital data center, which provides information on the power output, voltage, frequency, lifetime run hours and fuel level and is one of the features of its control panel.
In addition to this info, the generator's light indicators provide visual feedback when its oil levels are insufficient, the generator is overloaded and the generator is ready.
Considering security aspects, the generator boasts an overload protection (circuit breaker) and an automatic low oil shut-off, offering peace of mind throughout operation.
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.
While the standard documentation and an owner's manual (opens in a new tab), helpful for starting the device promptly, come with the Genmax GM5500i, the following accessories are also included: funnel and tool kit.
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).
- With a dry weight of 116.6 pounds, the Genmax GM5500i finds itself in the expected weight range for inverter generators able to produce between 4500 and 5500 rated watts. If weight is your top priority, one of the champions in this power category is the Pulsar PGX60BiSRCO, weighing just 93.5 pounds.
- This inverter generator offers a rated noise level of 62 dBA, placing it among the quieter alternatives in its type and power category. If noise emissions are important to you, one of the least noisy generators of this power range is the Honda EU7000iS with only 52 dBA.
- Concerning its runtime, the GM5500i provides up to 13 hours at a 25% load, indicating that it falls on the lower side compared to other generators of its type and power range. If run time is one of your main concerns, the Champion 201532 could be worth looking at. It boasts one of the highest run times among units of comparable power, lasting up to 18 hours.
- While run time is vital, it hinges on the fuel capacity. To grasp the full picture, we must also factor in fuel efficiency. When operating at 25% load, the inverter generator's fuel consumption is estimated at 0.27 GPH, placing it within the average range of gasoline usage among similarly powerful devices. If fuel consumption is your top priority, we suggest to check out the DuroMax XP7000iHT, which has a fuel consumption of only 0.19 GPH and thus, is one of the most efficient devices in our database.
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
- Inexpensive
- CO DETECT technology
- GFCI Outlets
- Electric start
- Inverter
- Quiet for its power (62 dBA)
- Decent weight (116.6 lbs)
- Decent fuel efficiency
- 1-year warranty
- No remote start
- No parallel ports
- Relatively low run time
Features and Specifications
| Inverter | Yes |
|---|---|
| Parallel capable | No |
| RV ready | No |
| Fuel | Gasoline |
| Engine | 312 cc Dinking OHV 4-stroke |
| Starting system | Recoil, Electric |
| Warranty | 1 year |
| Voltage | AC: 120/240V 60 Hz, DC: 5V |
|---|---|
| Running watts | 5,000 W |
| Starting watts | 5,500 W |
| Running amps (@120/240V) | 41.7/20.8 amps |
| Peak amps (@120/240V) | 45.8/22.9 amps |
| Run time @50% load | 8.5 h |
| Run time @25% load | 13 h |
| GFCI outlets | Yes |
|---|---|
| Covered outlets | Yes |
| Automatic Voltage Regulation | Inverter |
| AC outlets |
|
| DC outlets | 2x 5V USB port (USB-A) |
| Data center | Power output, fuel level, lifetime run hours, voltage and frequency |
| Indicators | Low oil, overload and output ready |
| Fuel tank | Steel, 3.5 gal |
| Fuel gauge | Digital |
| Weight | 116.6 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 21.1 x 18.5 x 24 in |
| Noise (lower limit) | 62 dBA |
| THD | < 3% |
| Compliance | EPA, ANSI/PGMA G300-2023 |
| Security | Low oil and overload protection, CO monitoring |
| Spark arrestor | Yes |
| Neutral | Bonded to frame |
| Accessories included | Funnel, tool kit, and battery |
| Country of origin | China |
| UPC | 768494055455 |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.
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 consult Genmax's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-866-960-2920.
Questions & Answers
What can it power?
| Item | Running Watts | Starting Watts | |
|---|---|---|---|
| At home | AC (10,000 BTU) | 1500 | 2200 |
| Dish washer | 1500 | 3000 | |
| Refrigerator (energy star) | 192 | 1192 | |
| Toaster oven | 800 | 800 | |
| Total | 3992 W | 5492 W | |
| For camping | RV AC (11,000 BTU) | 1010 | 1600 |
| RV refrigerator | 180 | 600 | |
| Hair dryer | 1800 | 1900 | |
| Water heater (10 gallons) | 1000 | 2000 | |
| Total | 3990 W | 4990 W | |
| For work | Table saw | 1800 | 4500 |
| Reciprocating saw | 730 | 960 | |
| Drain cleaner | 250 | 250 | |
| Total | 2780 W | 5480 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.
Couldn't find the right answer for you? Ask your own question.



