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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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 summary, the Ryobi RY903622 is a portable generator especially useful for:

  • RV travellers who wish to upgrade their experience to another level
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • Homeowners in need of an emergency backup power for their essentials

In the forthcoming sections, you'll delve into its power characteristics, the various outlets it offers, its overall portability, and the additional features it boasts.

Power & Run Time

Ryobi RY903622 runs on gasoline, powered by a 212 cc OHV 4-stroke engine, delivering 120V, boasting a running wattage of 3,600W alongside a starting wattage of 4,500W.

At a noise rating of 72 dBA (just slightly more noisy than a shower), the generator is started via Ryobi's EasyStart pull-start mechanism (more information below).

Equipped with a 4 gallons fuel tank, the RY903622 ensures continuous operation for around 10 hours at 50% load with a full tank (fuel usage approximately 0.4 gallons per hour).

Outlets

The control panel includes the following 5 AC outlets:

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

This Ryobi generator is RV Ready, as it features a TT-30R receptacle (TT stands for 'Travel Trailer').

Portability

The classic open frame build of the Ryobi RY903622 delivers stability and easy maintenance access to components, facilitating air circulation. The design is ideal for rough environments and demanding outdoor use.

Although this generator is technically considered 'portable' (in the sense that it can be moved), its 115 lbs make it incredibly difficult to manually lift and transport. Nevertheless, thanks to its wheel kit (⌀8.5") and its folding handle (a decent solution to its lack of maneuverability), the generator can be easily moved, once placed 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

Regarding security, the generator comes with an overload protection (circuit breaker) and an automatic low oil shut-off, providing peace of mind during operation.

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.

Besides the usual set of documentation and owner's manual (opens in a new tab) to get you promptly started, Ryobi also included some oil in the RY903622's packaging.

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 falls within the expected weight range for generators in the 3500 to 4500 rated wattage. 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.
  • This generator, with its lowest noise level at 72 dBA, is noisier than most generators of comparable running wattage. If you'd like a less noisy alternative, the Westinghouse iGen5000DF is a strong contender. It boasts a noise rating of 52 dBA, placing it among the quietest generators in its power category.
  • Autonomy-wise, with around 10 hours on a full tank at a 50% load, the RY903622 is on the low end when compared to other generators of a similar power output. If extended autonomy is what matters most to you, the Predator 4375 could be an excellent choice, offering one of the longest run times among units in its power category, reaching around 16 hours.
  • While the run time is an important parameter, it is dependent on the fuel tank's capacity and thus, doesn't say much on its own unless we consider fuel consumption as well. With an estimated fuel consumption of 0.4 GPH at a 50% load, this generator aligns with the average gasoline usage range of comparable products. If fuel consumption is your top priority, we suggest to check out the Westinghouse iGen5000DF, which has a fuel consumption of only 0.23 GPH and thus, is one of the most efficient devices in our database.

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 homeRefrigerator (energy star)1921192
Hair dryer18001900
Freezer8101750
Set of 5 LED light bulbs5555
Total2857 W3857 W
For campingRadiant heater13001300
RV refrigerator180600
RV AC (11,000 BTU)10101600
Slow cooker270270
Radio100100
Total2860 W3450 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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Ryobi RY903622
4.4 Total Score
3 reviews
Add your review
Price
6.7
Value
3.7
Quality
4
Performance
3

User Reviews

Most Recent Most Helpful Highest Rating Lowest Rating Add your review
  1. 1.15
    Price
    60
    Value
    10
    Quality
    10
    Performance
    10

    Knocks like crazy and all I hear from home depot is they don’t know why it does it. I ask can you replace it because I purchased it 2 and a half years ago and told it has been discontinued but you can buy this one for 6 hundred dollars and we may be able to pro-rate it. First time I have had issues with h.d. in 18 years. I won’t use them again

    + PROS:
    • Runs
    - CONS:
    • You name it
    Helpful(0) Unhelpful(0)You have already voted this
  2. Avatar
    Pamela Marshall October 5, 2021 at 9:42 am
    2.9
    Price
    80
    Value
    60
    Quality
    50
    Performance
    40

    Used maybe about 10-15 times in a few years. Always used ethanol-free gas and kept fuel additive in to stop water condensation. Within 2 year we were having issues with starting and just finally figured out why. The tank had rusted and clogged the carburetor so now I have to replace the tank and carb at a cost over $150. We HAVE to have a generator to keep some pumps running to stop flooding. Fixing it for now but will be replacing soon. NOT HAPPY.

    + PROS:
    • Nice while it worked. For ONE season.
    - CONS:
    • Metal tank creates condensation
    Helpful(0) Unhelpful(0)You have already voted this
  3. 2.5
    Price
    60
    Value
    40
    Quality
    60
    Performance
    40

    Not bad, but you MUST use gas treatment in your gas or this Ryobi will clog up instantly …funny that I asked this when I bought it and the salesperson said “no, regular gas works fine”…nor was in mentioned in the instruction manual. Since we never know when we’ll need a generator, my warranty expired before i knew this…so the second time I tried to start itwas a total failure

    + PROS:
    • decent price
    - CONS:
    • never told it needed gas treatment to operate
    Helpful(4) Unhelpful(3)You have already voted this

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