LIMITED TIME! Save an extra $50 on a Flex Power 3300i on Amazon! Click for deal!

Sale 20% off

Flex Power® Super Quiet Portable Inverter Generator with CO Auto-Shutoff

Flex Power® Super Quiet Portable Inverter Generator with CO Auto-Shutoff

$799.00

$999.00

SAVE 20%

Generator Model

4500ies (Electric Start) - Single Fuel (Gas)

4500ies (Electric Start) - Dual Fuel (Gas + LP)

3300i (Manual Recoil Start) - Single Fuel (Gas)

2200i (Manual Recoil Start) - Single Fuel (Gas)

HURRY! LOW STOCK!

OUT OF STOCK

Restock soon, PREORDER NOW!

HURRY! LOW STOCK!

The RVMP® Flex Power® Super Quiet Portable Inverter Generator Series is your go-to reliable clean power source for your next outdoor adventure. Available with electric or hand-recoil start and whisper-quiet operation, it’s built to power your RV, campsite, tailgate, or home backup setup...without breaking a sweat (or the silence). This generator combines convenience with powerful performance and comes standard with incredibly safety features - like our CO Auto-Shutoff detection. Its industry leading silent operation is National Forest Service approved and ensures minimal noise disruption! Choose from the super powerful 4500W workhorse to the 2200W lightweight powerhouse and power up your next outdoor adventure!

Free Shipping

Free Delivery to the US

Money Back Guarantee

60-Day Free Returns

Warranty

2-Year warranty policy

After-Sale Service

US Based Support Team

Built for the Extreme. Trusted by Pros.

From RV Mobile Power LLC - the Original Equipment Manufacturer Trusted By

Meet the 4500ies Silent Inverter Generator

Click to watch a quick demo video introducing one of our most powerful portable inverter generators.

Meet the 4500ies Silent Inverter Generator

Click to watch a quick demo video introducing one of our most powerful portable inverter generators.

Flex POWER 4500ies vs. them

Better Features. Better Price. Better Choice.

FLEX POWER

4500ies Quiet Inverter Generator

with Electric Start and SafeCO

THE "OTHER GUYS"

Champion 4500W

Wireless Start Generator with CO Shield

Weight

76lb

101lb

Sound Level

54 dB @ 10ft

61 dB @ 23ft

Total Number of Power Receptacles

5

3

Carbon Monoxide Auto Shut-Off

Parallel Capacity

Telescoping Handle

Leak Resistant Fuel Cap

Better Features, Better Price

$799 ~~$999~~

$999

Generator Model

4500ies (Electric Start) - Single Fuel (Gas)

4500ies (Electric Start) - Dual Fuel (Gas + LP)

3300i (Manual Recoil Start) - Single Fuel (Gas)

2200i (Manual Recoil Start) - Single Fuel (Gas)

60-day money-back guarantee included

Flex POWER vs. them

Better Features. Better Price. Better Choice.

FLEX POWER

4500ies Quiet Inverter Generator

with Electric Start

THE "OTHER GUYS"

Champion 4500W

Wireless Start Generator

Weight

76lb

101lb

Sound Level

54 dB @ 10ft

61 dB @ 23ft

Number of Receptacles

5

3

Auto Carbon Monoxide Shut-Off

Parallel Capacity

Telescoping Handle

Leak Resistant Cap

Better Features,

Better Price

$799
~~$999~~

$999

Generator Model

4500ies (Electric Start) - Single Fuel (Gas)

4500ies (Electric Start) - Dual Fuel (Gas + LP)

3300i (Manual Recoil Start) - Single Fuel (Gas)

2200i (Manual Recoil Start) - Single Fuel (Gas)

60-day money-back guarantee included

What Our Customers Are Saying

Perfect Fit

I was looking for compact quiet unit and came across RVMP and the Flex Power generator. It runs better than my Honda and saved me money. I called the company before purchase and they gave me confidence that they stand behind their products. I couldn’t be more happy! Great Gen and Great Company! Go get them RVMP.

- Dana C.

Customer Support at its Finest

I called 855 Happy RV and explained my needs. They gave me personal service and I purchased the 4500ies. It’s way smaller and lighter and I love the telescoping handle on this unit. I have the best portable Gen at horse camp…looking to install a 4000i dual fuel on my trailer next. Thanks RVMP…I am a fan!

- D.C.

Surprised By Power

Much more powerful than my Honda, and actually way quieter. Wish I would have known of this company before I spent 2x on the Honda unit. Two huge thumbs up.

David C.

Thank you Grant. Great service.

Due to the excellent and diligent efforts of Grant and the staff at RVMP I received the 4500 watt generator I ordered well before my departure date. The Onan generator in my Rv went out while en-route to Florida. What a blessing they are.

- Jim F.

Great Generator

Great generator, very quiet 😀

- Ken

features
specifications

Features (4500ies)

Title

BUILT IN INVERTER

Clean electrical output for sensitive devices

STARTING OPTIONS

Electric start or recoil pull start

TELESCOPING HANDLE

For each transport

COMBINATION SWITCH

For STOP, OFF, RUN, and CHOKE

5 POWER RECEPTACLES

4x AC 120v + 1x 30A RV Receptacle

2 USB PORTS

1A, 2.1A

PARALLEL COMPATIBLE

Can be run in parallel with other generators

Click to see the features and specs of the 3300i or 2200i.

Specifications (4500ies)

Title

STARTING WATTS

4500

START STYLE

Electric start or hand recoil

FREQUENCY

60 Hz

VOLTAGE

120V

RATED POWER

3.6 kW

MAXIMUM POWER

3.8 kW

FUEL TYPE

Gasoline

DIMENSIONS

23.81" x 12.59" x 22.04"

WEIGHT

76 lbs (34.5 kg)

STYLE

OHV

DISPLACEMENT

224 cm3

IGNITION SYSTEM

DCI

OIL CAPACITY

0.6L (0.16gal)

FUEL CAPACITY (REVERSAL VALVE)

7.8/7.2 L (2.1/1.9 gal)

OPERATING TEMPERATURE

14~104°F (-10~40°C)

SOUND LEVEL (at 10FT)

<54 dB(A)

Use theh following links to see features and specs for the 3300i or the 2200i.

Free U.S. Shipping | 60-Day Returns | 2 Year Warranty

(4.7/5.0 Stars)

Flex Power 4500ies Quiet Inverter Generator with Electric Start

$799.00

$999.00

Title

Free Shipping Anywhere in the contiguous United States

60-Day Money-Back Guarantee

2-Year Warranty

US Based Customer Support

Frequently Asked Questions

How long has Flex Power been around?

Title

Flex Power is a division of RVMP, the leading generator producer for RV original equipment manufacturers. We have been designing and producing portable and install generators since 2017. All our generator technology is road tested and built to last the long haul!

What appliances can 4500ies power?

Title

It's suitable for many household needs like running a refrigerator, microwave, some window AC units, and smaller power tools. You can also use it for job sites, RVs, tailgates, or use during power outages. The Flex Power 4500w generator is the leading RV generator for RV dealers!

What is the CO Guard - Carbon Monoxide Shut off?

Title

CO Guard technology monitors the accumulation of carbon monoxide (CO), a poisonous gas produced by engine exhaust when the generator is running. If CO Guard detects unsafe elevated levels of CO gas, it automatically shuts off the engine.

Do you provide a warranty?

Title

Absolutely. Every RVMP Flex Power On-Demand Water Heater comes with a 60-day money-back guarantee and a 2-year warranty covering manufacturing defects. If something’s not right, we’ll make it right, no long forms, no runaround. Just real support from a real team based right here is the USA.

What is your return policy?

Title

We offer a 60-day money-back guarantee—no questions asked. Prefer to exchange instead? We’ve got you covered there too. Our goal is to keep every customer on the road, not stuck in the cold. The mountains are calling—and so is your hot water.

How can I contact you before buying?

Title

We’re happy to help! You can DM us on Instagram [@myflexpower] or shoot us an email at info@rvmp.com. Whether it’s a fit check or feature question, our U.S.-based team is here to make sure you get the right gear for your next adventure.

Still have questions? Send us your questions by filling out the form below, we will be happy to assist you.

a division of

Title

830 Kinnear Rd. Columbus OH 43212

Flex Power® Super Quiet Portable Inverter Generator with CO Auto-Shutoff

$799.00

Generator Model

4500ies (Electric Start) - Single Fuel (Gas)

4500ies (Electric Start) - Dual Fuel (Gas + LP)

3300i (Manual Recoil Start) - Single Fuel (Gas)

2200i (Manual Recoil Start) - Single Fuel (Gas)

Cookie Notice

Flex Power® Super Quiet Portable Inverter Generator with CO Auto-Shutoff

Built for the Extreme. Trusted by Pros.

From RV Mobile Power LLC - the Original Equipment Manufacturer Trusted By

Meet the 4500ies Silent Inverter Generator

Meet the 4500ies Silent Inverter Generator

Better Features. Better Price. Better Choice.

BUILT FOR THE EXTREME

Better Features. Better Price. Better Choice.

What Our Customers Are Saying

Features (4500ies)

Specifications (4500ies)

Frequently Asked Questions

Flex Power® Super Quiet Portable Inverter Generator with CO Auto-Shutoff