Enjoy Quiet Yet Robust Power Anywhere You Are With The Cummins Onan P4500i Inverter Generator
The Cummins Onan P4500i Inverter Generator delivers dependable, quiet portable power for RVs, camping, events, and light jobsite use. Producing up to 4,500 watts of peak power, this gasoline-powered inverter generator is built to handle modern electronics while maintaining stable, clean output.
Designed with double-insulated construction, the P4500i operates at noise levels as low as 52 dBA, making it a neighbor-friendly option for campgrounds and residential environments. Starting is effortless thanks to the included remote start, onboard push-button control, and pull-cord backup, giving you flexibility in any situation.
A 3.4-gallon fuel tank provides up to 18 hours of runtime at 25% load, while the integrated LED display keeps critical information—such as fuel level, power output, voltage, remaining runtime, and lifetime hours—clearly visible. Despite its robust output, the generator remains highly portable at just under 100 pounds, with built-in wheels and a telescoping handle for easy transport.
EPA compliant, the P4500i is engineered for reliable performance where portable, temporary power is needed—without sacrificing comfort, quiet operation, or convenience.
Due to local regulations, this product not CARB-compliant and cannot be shipped to California.
Why You Will Love The Cummins Onan P4500i Generator
Finally! Experience Minimal Noise With A Powerful Generator
Experience peace and power with the Onan P4500i's quiet operation. At just 52 decibels, it's still going to make some noise, but it's also the quietest generator on the market for camping, RVing, or using as a backup power source at home.
Enjoy Remote Start Technology
Convenience at your fingertips with the P4500i's remote start feature. Power up your generator from up to 99 feet away, perfect for RV owners and outdoor enthusiasts seeking effortless energy management.
18-Hour Run Time at 25% Load
Enjoy uninterrupted power with the P4500i's impressive 18-hour run time at 25% load. This fuel-efficient inverter generator keeps your appliances and devices running longer, ideal for camping trips and emergency backup power.
Handle & Wheels Design For Easy Portability
Take your power anywhere with the Cummins Onan P4500i's portable design. Featuring a telescoping handle and wheels, this 98-pound generator offers maximum mobility for outdoor adventures and job site applications.
Versatile Power Options for Use Anywhere
From RV-ready outlets to USB ports, the P4500i provides versatile power solutions. Charge sensitive electronics, power your RV, or parallel with another unit for increased output, making it the ultimate choice for diverse energy needs.
Cummins Onan P4500i Warranty
Cummins provides a 3-year warranty policy, ensuring the absence of defects in materials, workmanship, and performance during the warranty period.
What's Included
1 x Cummins Onan P4500i 3700W/4500W Inverter Generator
1 x Remote Start Key Fob (attached to coil restarter)
1 x 0.63 Quart (0.6 Liter) Bottle of SAE 10W-30 Oil
1 x Oil Funnel
1 x Battery Charger
1 x Spark Plug Socket Wrench
1 x Screwdriver
1 x Manual
1 x Quick Start Guide
Cummins Onan P4500i Generator Specifications
AC Frequency
60 Hz
AC Voltage
120 Volts
Assembled Height
20.5 in | 520 mm
Assembled Length
24.5 in | 622 mm
Assembled Width
18.25 in | 463 mm
Battery Included
Yes
Carton Height
21 in | 533 mm
Carton Width
19.5 in | 495 mm
Carton Length
30.3 in | 768 mm
Choke Type
Automatic
DC Voltage
5 Volts
Dry Unit Weight
98 lbs | 44 kg
Economy Mode Switch
Yes
Engine Horsepower
7.3 HP
Engine RPM Max
3600
Gasoline Peak Watts
4500
Gasoline Running Amps
3700
GFCI Outlets
No
Handle Style
Telescoping Handle
Overload Protection
Yes
Parallel Capable
Yes
Peak Amps at 120V
7.5 amps
Remote Start Distance
99 ft | 30 meters
Running Amps at 120V
0.8 amps
Run Time at %25 Load
18 hrs
Run Time at %50 Load
15 hrs
Battery Charger Included
Yes
Cummins Onan P4500i Inverter Generator Manual
Frequently-Asked Questions
Get answers to the most common questions customers ask before placing an order.
Is Outbound Power an Authorized Dealer?
Yes! Outbound Power is an Authorized Dealer for every single brand and product on our store.
How long will it take for my order to arrive?
Shipping times vary depending on your location and the product or products ordered.
Order Processing Time Most products are processed within 1-3 business days. If there is a delay in processing your order, we will alert you with as much information as possible about what to expect.
After order processing is complete, you will receive tracking information to monitor your order while it is in transit.
Order Shipping Time Following processing, it may take between 3 and 8 days to arrive, depending on your location.
Please refer to the product page for your item and reference the estimated delivery time frame for more details.
Additionally, you can see the estimated delivery time frame during checkout and receive a tracking number once your order ships.
What are your shipping rates? Do you offer free shipping?
Everything on our store ships for free. Really!
What is Outbound Power's return policy?
Most items may be returned within 30 days of delivery. Please refer to our Returns & Exchanges policy to determine what items are eligible. Returns are not accepted beyond 30 days following delivery.
Are Outbound Power products used/old/refurbished?
Everything sold on our website is brand-new.
Do you price match?
No — we price BEAT! Please refer to our Price Beat Promise for full details.
So far, it's been working flawlessly with my EcoFlow Delta 3 Plus
It doesn't seem to work well with my EcoFlow River 2 Pro; for some reason, I had to restart the Charger. Every time I tried to charge my River 2 Pro, eventually it wouldn't charge. There is a good possibility I did something wrong in the settings. I didn't buy it to Charger for the River 2 Pro anyway, so no big deal to me. So far, after two days, the EcoFlow Delta 3 Plus hasn't had any issues.
Thank you for taking the time to leave a review. We are glad to hear that it has been working flawlessly with your EcoFlow Delta 3 Plus. We apologize for the inconvenience you experienced with your EcoFlow River 2 Pro. Our team is here to assist you and make sure you are fully satisfied with our product. Please feel free to reach out to us if you need any help with the settings. We want to ensure that your experience with our charger is nothing but positive. Thank you for choosing Outbound Power.
Outbound team is fast and responsive. With my purchases so far they have beat everyone else’s prices.
Thank you for your kind words! We’re thrilled you had a great experience with our team and found our prices competitive. We truly appreciate your support and look forward to serving you again soon.
Review of EcoFlow DELTA Pro Ultra X Whole-Home Backup
I purchased the Delta Pro Ultra X with two batteries at the end of 2025 from Outbound Power to get the best price. All three components arrived intact in three separate heavy duty boxes with ample custom molded padding to protect the units from shipping mishaps. I stacked the 3 units on the included caster tray in a new tiny home, and used the unit after a firmware update to my satisfaction. After using the unit for a short while, I charged the unit with a Honda EU3000i gas generator. A week later I installed two solar arrays, totaling 4400 watts with 2 sets of (5) 440 watt panels. I live in Southern California, so this allowed me to be fully charged in an hour or two of full morning sun. The unit has been powering the tiny home which came with a 50A shore power connection. I ran a circuit from the wall nearest the EcoFlow under the tiny home and connected to power panel via the shore power 50A outlet, by removing the outlet and splicing in the new circuit. The unit will run the tiny home no problem and has been on since the end of 2025. I may consider two more batteries after running all my consumer calcs to be 100% off grid, all electric, while satisfying San Diego County's 4 day battery reserve capacity for permitted off grid application such as mine. I'm very happy with this unit. I run Starlink, the refrigerator, an on demand propane water heater (at this time) and a minisplit, plus an inductive cook top, oven, washer/dryer, lights, etc without any issues. The simplicity of installation is peace of mind, and being plugged into the sun feels good every day. Outbound power has reached out and offered to assist if the need should present itself. So far so good!
Hello Jamie,
Thank you for taking the time to leave a review for the EcoFlow DELTA Pro Ultra X Whole-Home Backup. We appreciate your detailed feedback and are happy to hear that you are satisfied with your purchase.
It's great to know that your unit arrived safely and that you were able to easily set it up in your tiny home. We're glad that the firmware update met your expectations and that you were able to quickly charge the unit using a Honda EU3000i gas generator.
We're also pleased to hear that the solar arrays are working well for you and providing enough power for your tiny home. It's wonderful that you are able to be fully charged in just a few hours of sunlight. We understand the importance of being fully off-grid and are happy to hear that this unit is helping you achieve that.
Thank you for choosing Outbound Power as your supplier. We are always here to assist you with any further needs or questions that may arise.
We hope you continue to enjoy the simplicity and reliability of your EcoFlow DELTA Pro Ultra X. Thank you for being a valued customer.
Works Great. Very useful and a must have if you have Ultra X
Thank you for the great review! We’re glad to hear it’s working well for you. If you ever have questions or want help getting even more out of your setup, we’re here for you.
Runs my fridge and freezer while being mobile in my food trailer. Get interface and features. Great product.
Hi there!
Thank you so much for taking the time to leave such a wonderful review of the Anker SOLIX C1000 Gen 2 Portable Power Station! We’re thrilled to hear that it’s meeting your needs and reliably running your fridge and freezer while you’re on the go in your food trailer.
It’s especially great to know that you’re enjoying the interface and features — Anker did a fantastic job designing this unit, and we’re glad it’s delivering the performance you were looking for.
Thank you again for your support, and we wish you continued success and happy trails ahead!
We have a son with severe autism. If he is awake, he is on his computer and tablet. But if the power goes out, big trouble as he gets extremely upset. This power supply will help keep him entertained for a few hours, hopefully long enough for the power to come back.
Thank you so much for taking the time to leave us a review. We’re truly grateful you chose the Jackery Explorer 500, and it means a lot to hear that it’s helping provide stability and comfort for your son during unexpected outages. Having reliable backup power in moments like those can make all the difference. Thank you for choosing Outbound Power!
We sincerely appreciate your thoughtful review and your trust in us. If you ever need anything at all, we’re always here to help.
The Jackery 5000 can run my smaller 240V welder (with adapter for the plug). As a test, I plugged in 2 vacuum cleaners, a steamer, and a clothes iron. It ran all four without issue. Plenty of power in a compact package. It might be a bit heavy if you need to pick it up or move it up stairs, but is rolls nicely on its wheels. Overall, seems like a solid unit.
Thank you so much for taking the time to leave a review for the Jackery 5000 Plus. We're glad to hear that the product is running great and providing plenty of power for your needs. It's great to know that it can handle multiple appliances without any issues. We also appreciate your feedback on the weight and portability of the unit. We hope it continues to serve you well. Please feel welcome to be in touch if we can ever be of assistance!
Called with question and received friendly service. Got my solar panel extension cord cord in a timely manner. Haven’t needed to use it yet.
Thank you for your kind review! We are glad to hear that you had a positive experience and that you received your solar extension cord quickly. Please let us know if we can ever be of service again!
Delivered quickly. Nice that Outbound Power keeps the customer updated about your order. The generator is great.
Thank you so much for the review. We are glad your order arrived quickly, and ecen happier to hear the power station is performing well for you. We truly appreciate your business!
