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Ryobi RY903622 - 3600/4500W Portable Generator

The Ryobi RY903622 is a portable open frame generator with a rated wattage of 3600 W and a starting wattage of 4500 W.

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Price History
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Price history for the Ryobi RY903622
Latest updates:
  • $649.00 - August 8, 2022
  • $629.00 - May 13, 2022
Data source: homedepot.com
Since: May 13, 2022
  • Highest Price: $649.00 - August 8, 2022
  • Lowest Price: $629.00 - May 13, 2022

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 who want to be able to use the most necessary devices in their household, even during a blackout

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

Power & Run Time

The Ryobi RY903622's engine, 212 cc OHV 4-stroke, fueled by gasoline, can deliver 120V. It provides a running wattage of 3600W and reaches a peak wattage of 4500W.

Enjoying a noise rating of 72 dBA (just slightly more noisy than a dishwasher), this generator gets running thanks to 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 includes the following 5 AC outlets:

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

This Ryobi generator is RV Ready, thanks to its TT-30R receptacle (TT stands for 'Travel Trailer').

Portability

The typical, open frame design provides stability and enables the generator to be raised above ground level. The device has been designed for tough environments and demanding outdoor use.

While the generator is considered to be technically 'portable' (in the sense that you can move it), manually lifting and transporting it may be challenging, due to its high weight of 115 lbs. However, its challenging mobility is solved by its wheel kit (⌀8.5") and its folding handle, which will ease its displacement, once it is on the floor.

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 far as security is concerned, the generator can be used with a peace of mind, as it features an automatic low oil shut-off and an overload protection (circuit breaker).

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

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.

Emissions

The Ryobi RY903622 is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.

However, it features a spark arrestor and therefore, can be used in forested areas.

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).

  • As its weight is 115 pounds, the Ryobi RY903622 falls in the expected weight range of the devices in the 3500-4500 rated wattage category. Regarding dry weight, one of the champions in the same power range is the WEN GN400i, with a dry weight of only 66.1 lbs.
  • 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 noise emissions are one of your priorities, you may be interested in the Cummins Onan P4500i, one of the least noisy generators similarly powerful as this one, rated for 52 dBA.
  • As far as autonomy is concerned, providing around 10 hours of runtime with a full tank at a 50% load, the RY903622 falls into the low end in comparison with other devices of a comparable power output. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Predator 4375, as it provides around 16 hours.
  • Autonomy holds its importance, however, it is largely dependent on the generator’s fuel capacity and so, it is nonsensible to discuss it without mentioning fuel efficiency as well. Standing at an estimated 0.4 GPH (gallon per hour) at a 50% load, this generator is somewhat average in this area compared to other devices, within the aforementioned wattage range. If you wish to further improve in the area of fuel efficiency, the Cummins Onan P4500i, which boasts with a gas consumption of only 0.23 GPH, may be the right generator for you.

Price comparison

As you can see from this interactive chart, when compared to other 3500-4500W generators, the Ryobi RY903622 is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

STRENGTHS:
  • In the expected price range
  • CO DETECT technology
  • RV Ready
AVERAGE SPECS:
  • Decent weight (115 lbs)
  • Decent fuel efficiency
WEAKNESSES:
  • No data center
  • No electric start
  • Not CARB-compliant
  • 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
PortableYes
Parallel capableNo
RV readyYes
FuelGasoline
Engine212 cc OHV 4-stroke
Starting systemRecoil
Power
VoltageAC: 120V 60 Hz
Running watts3600 W
Starting watts4500 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
Warranty3 years
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 wattage 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

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