Ryobi RYi6522 - 5500/6500W Open Frame Inverter Generator

The Ryobi RYi6522 is a portable open frame inverter generator with a rated wattage of 5,500 W and a starting wattage of 6,500 W. (Read full specs)

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Zoom on the Ryobi RYi6522

In a few words, the Ryobi RYi6522 is a portable inverter generator perfectly suited for:

  • RV travellers wishing to enhance their freedom and nomad lifestyle
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • 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 able to use the most necessary devices in their household, even during a blackout
  • Camping and tailgating buffs looking to enhance their experience
  • Professionals who want to ensure that a power failure will not prevent them from working

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

Power & Run Time

The Ryobi RYi6522 in use

The Ryobi RYi6522

The Ryobi RYi6522's engine, 298 cc OHV 4-stroke, fueled by gasoline, can deliver 120V. It provides a running wattage of 5,500W and reaches a peak wattage of 6,500W.

Rated for 72.3 dBA (just slightly more noisy than a dishwasher), the inverter generator's starting mechanism relies on a classic hand-operated recoil starting mechanism.

The RYi6522's fuel tank, boasting 4 gallons, allows it to operate for around 8.5 hours at 50% load with a full tank (with an estimated fuel consumption of 0.47 GPH).

The RYi6522 generates a clean sine wave with <5% Total Harmonic Distortion (THD), ensuring minimal electrical noise and fluctuations. This feature makes it ideal for powering sensitive electronics, providing stable and reliable AC power through the outlets.


The control panel provides the upcoming 6 AC outlets:

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

It also sports 1 DC outlet: there's a 5V USB port (USB-A) enabling convenient charging of devices like mobile phones and tablets.

Thanks to its TT-30R receptacle (TT meaning 'Travel Trailer'), this Ryobi generator is RV Ready, ready to power your recreational vehicle with ease. In addition, since it boasts a twist-lock L14-30R receptacle, the RYi6522 is engineered to be transfer switch ready, ensuring easy integration with your breaker box to provide backup power to your home during outages.


With dimensions of L24.4 x W20.9 x H22.5 in, the traditional open frame design of the Ryobi RYi6522 ensures stability while allowing easy maintenance access to components and promoting effective air cooling. The generator is designed for ideal use outdoors and in rough environments.

As the generator's weight is 118 pounds, manually moving it or transporting it may be challenging, despite the fact that it is technically considered 'portable' (movable). Nonetheless, the limited maneuverability is compensated for by utilizing its set of wheels (⌀10") and its folding handle, which facilitates shifting once the generator is set on the ground.


Panel of the Ryobi RYi6522

The RYi6522's control panel

The control panel of the RYi6522 is equipped with a convenient meter, providing voltage, frequency, and lifetime hours data, aiding in monitoring its status and activity.

In addition to this info, light indicators on the device will notify you if the generator is ready, the generator is overloaded and the oil level is too low.

As far as security is concerned, the generator comes with an overload protection (circuit breaker) and an automatic low oil shut-off, providing peace of mind during use.

It also benefits from Ryobi'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.

Alongside the standard documentation and an owner's manual (opens in a new tab) for quick setup, the Ryobi RYi6522 is bundled with additional accessories: tool kit and oil.

The Ryobi RYi6522 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Ryobi RYi6522 compare to inverter generators of similar power (between 5000 and 6000 W).

  • Considering its weight, the Ryobi RYi6522 registers at a modest 118 pounds, placing it among the lighter inverter generators in the 5000 to 6000 rated wattage selection. In terms of weight, one of the champions in their power range is the Champion 201238, standing at just 101.4 lbs.
  • As this inverter generator has its lowest possible noise of 72.3 dBA, it should be considered noisier compared to its peers of a comparable running wattage. If noise emissions are one of your priorities, you may be interested in the Honda EU7000iS, one of the least noisy generators similarly powerful as this one, rated for 52 dBA.
  • As for its runtime, the RYi6522 runs for around 8.5 hours at a 50% load, placing it towards the low end among comparable inverters. If extended autonomy is what matters most to you, the Briggs & Stratton Q6500 QuietPower could be an excellent choice, offering one of the longest run times among units in its power category, reaching around 10 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 it comes to fuel efficiency among generators with similar wattage, this inverter generator lags behind, with a consumption rate of 0.47 GPH at a 50% load. If you wish to get a unit of similar power, but with one of the best fuel efficiency, you could consider the DuroMax XP7000iH, which has an impressively low fuel consumption of 0.38 GPH.

Price comparison

As you can see from these interactive charts, when compared to other 5000-6000W inverter generators, the Ryobi RYi6522 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
  • Several accessories included
  • GFCI Outlets
  • RV Ready
  • Inverter
  • Lightweight for its kind (118 lbs)
  • No electric start
  • No parallel ports
  • On the noisy side (72.3 dBA)
  • Relatively low run time
  • Low fuel efficiency

Do you own the Ryobi RYi6522 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

Parallel capableNo
RV readyYes
Engine298 cc OHV 4-stroke
Starting systemRecoil
Warranty3 years
VoltageAC: 120V 60 Hz, DC: 5V
Running watts5,500 W
Starting watts6,500 W
Running amps45.8 amps
Peak amps54.2 amps
Run time @50% load8.5 h
Run time @25% loadUnknown
GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationInverter
AC outlets
  • 2x Duplex 120V 20A (5-20R) GFCI
  • 1x 120V 30A (TT-30R)
  • 1x 120/240V 30A (L14-30R)
DC outlets1x 5V USB port (USB-A)
Data centerVFT
IndicatorsLow oil, overload and output ready
Fuel tank4 gal
Fuel gaugeNo
Weight118 lbs
Approx. dimensions (L x W x H)24.4 x 20.9 x 22.5 in
Noise (lower limit)72.3 dBA
THD< 5%
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, tool kit, and wheel kit

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 Ryobi

Founded in 1943, Ryobi Limited is a Japanese based manufacturer that throughout its history mainly focused on electrical and automotive components. However, their quite recent power tool branch has proven to be popular for the quality and reliability of its products, which are nowadays found globally on the shelves of popular retailers. Ryobi products are listed to be produced in various locations globally, mainly US, Germany, Japan and China.

Warranty Information

The Ryobi RYi6522 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 Ryobi generators, please consult Ryobi's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-800-525-2579.

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 size calculator.
ItemRunning WattsStarting Watts
At homeAC (10,000 BTU)15002200
Dish washer15003000
Refrigerator (energy star)1921192
Vacuum cleaner10751175
Cell phone charger2020
Total4387 W5887 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Hair dryer18001900
Radiant heater13001300
Total4390 W4980 W
For workTable saw18004500
Electric fence (25 miles)250250
Drain cleaner250250
Bug zapper8080
Total3780 W6480 W

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