Ryobi RY903622 - 3600/4500W Portable Generator

The Ryobi RY903622 is a portable open frame generator with a rated wattage of 3,600 W and a starting wattage of 4,500 W. (Read full specs)

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Ryobi RY903622Ryobi RY903622Ryobi RY903622Ryobi RY903622

Description

The RYOBI 3,600-Watt Portable Generator is the perfect power solution at home or on the jobsite. This generator delivers 3,600 Running-Watts and 4,500 Starting-Watts of power. Equipped with a simple 3 step starting process start your generator with ease. (source: Ryobi (opens in a new tab))

Zoom on the Ryobi RY903622

In a nutshell, the Ryobi RY903622 is a portable generator mostly geared towards:

  • RV travellers wishing to enhance their freedom and nomad lifestyle
  • People occasionally participating in outdoor fairs, festivals or events
  • Homeowners in need of an emergency backup power for their essentials

The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, and the extra features it benefits from.

Power & Run Time

Running on gasoline, the Ryobi RY903622 operates with a 212 cc OHV 4-stroke engine, delivering 120V, with a running wattage of 3,600W and a peak wattage of 4,500W.

Rated for 72 dBA (just slightly more noisy than a shower), the generator's starting mechanism relies on Ryobi's EasyStart pull-start mechanism (more information below).

Thanks to a fuel capacity of 4 gallons, the RY903622 can operate for around 10 hours at 50% load with a full tank (fuel consumption around 0.4 GPH).

Outlets

The control panel features the upcoming 5 AC outlets:

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

The inclusion of a TT-30R receptacle (TT for 'Travel Trailer') makes this Ryobi generator RV Ready, ideal for providing power to recreational vehicles.

Portability

The Ryobi RY903622 boasts a traditional open frame structure, ensuring stability and allowing for convenient maintenance access to components, promoting air circulation. The featured design is ideal for the outdoors and all tough environments.

Though weighing 115 lbs, the generator remains classified as 'portable,' indicating its capability to be moved, though its weight could pose transport challenges. However, the constrained maneuverability is addressed with the assistance of its wheel kit (⌀8.5") and its folding handle, allowing for easy shifting once the generator is placed on the ground.

EasyStart Mechanism

ryobi easystart starting mechanism

Ryobi's 3-step EasyStart mechanism

The unit benefits from Ryobi’s EasyStart mechanism. This 3-step starting system allows you to easily start your generator. It works in the following way:

  1. Put the engine switch on the “ON” position, and place the lever on the “START” position
  2. Pull the recoil until the engine runs
  3. Let the engine run 15 to 30 seconds and place the lever on the “RUN” position

Features

Panel of the Ryobi RY903622

The RY903622's control panel

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.

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.

In addition to the standard documentation and the user manual for prompt setup, Ryobi has also included accessory] in the packaging of the RY903622.

The Ryobi RY903622 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Ryobi RY903622 compare to generators of similar power (between 3500 and 4500 W).

  • With a dry weight of 115 lbs, the Ryobi RY903622 sits comfortably within the expected weight range for devices generating 3500 to 4500 rated watts. If weight is a key factor for your needs, the Genmax GM4600iAEFIC is noteworthy for being one of the top contenders in this power range, with a dry weight of 58.4 pounds.
  • If compared to generators capable of producing a similar running wattage, this generator with a lowest emitted noise of 72 dBA can be considered somewhat noisy. If you are concerned with noise, check out the Westinghouse iGen4500DF, which is one of the least noisy generators in its power range, with a noise rating of just 52 dBA.
  • Regarding its autonomy, the RY903622 can run for around 10 hours at a 50% load, aligning it with the lower performers in its power range. 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 Predator 4375, with around 16 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. When operating at 50% load, the generator's fuel consumption is estimated at 0.4 GPH, placing it within the average range of gasoline usage among similarly powerful devices. If you wish to further improve in the area of fuel efficiency, the Westinghouse iGen4500DF, which boasts with a gas consumption of only 0.23 GPH, may be the right generator for you.

The bottom line

STRENGTHS:
  • CO DETECT technology
  • RV Ready
AVERAGE SPECS:
  • Decent weight (115 lbs)
  • Decent fuel efficiency
WEAKNESSES:
  • No data center
  • On the noisy side (72 dBA)
  • Relatively low run time

Do you own the Ryobi RY903622 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterNo
Parallel capableNo
RV readyYes
FuelGasoline
Engine212 cc OHV 4-stroke
Starting systemRecoil
Warranty3 years
Power
VoltageAC: 120V 60 Hz
Running watts3,600 W
Starting watts4,500 W
Running amps30 amps
Peak amps37.5 amps
Run time @50% load10 h
Run time @25% loadUnknown
Features
GFCI outletsNo
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets
  • 2x Duplex 120V 20A (5-20R)
  • 1x 120V 30A (TT-30R)
DC outletsNo
Data centerNo
IndicatorsNo
Fuel tank4 gal
Fuel gaugeNo
Misc
Weight115 lbs
Approx. dimensions (L x W x H)Unknown
Noise (lower limit)72 dBA
THDUnknown
ComplianceEPA
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralFloating
Accessories includedOil and wheel kit
Other model numbersRY903622VNM
UPC046396033499

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 RY903622 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 homeElectric fry pan15001500
Refrigerator (energy star)1921192
Vacuum cleaner10751175
Radio100100
Total2867 W3867 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Electric grill16501650
Total2840 W3430 W
For workGrinder14002500
Demolition hammer12601260
Bug zapper8080
Total2740 W3840 W
What oil is recommended and how much oil does the Ryobi generator model #RY903622VNM hold? Thanks (Asked April 27, 2023)

Engine oil capacity is approximately 20 fl. oz. For general, all-temperature use, SAE 10W-30 is recommended.

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