Champion 4375/3500-Watt Generator Review: Powering Peace of Mind on the Road


When it comes to RV adventures, having a reliable power source is essential for a comfortable and stress-free trip. As an avid RVer, I’ve had my fair share of experiences with different generators, but none have impressed me as much as the Champion 100555 4375-W 7-HP Portable RV Ready Gas Powered Generator. In this review, I’ll share my first-hand experiences and knowledge to help you make an informed decision on whether this generator is the right fit for your needs.

Quick Specifications

  • Brand: Champion
  • Model: 100555
  • Country/Region of Manufacture: United States
  • Type: Portable Power Generator
  • Power Source and Fuel Type: Gasoline
  • Power Rating: 3,500 Watt
  • Rated Output Wattage: 3,500-Watt
  • Maximum Power: 4,375 Watt
  • Generator Type: 4 Stroke 7.0 HP 208cc Air Cooled OHV Engine
  • Tank Capacity: 4.8 Gallons
  • Voltage: 120
  • MPN (Manufacturer Part Number): 100555
  • UPC (Universal Product Code): 817198021850

Build Quality and Aesthetic Design

The Champion 100555 4375-W 7-HP Portable Gas Powered Generator boasts a sturdy and durable build, reflecting the high-quality construction characteristic of Champion products. Crafted with the rigors of outdoor use in mind, this generator features robust materials that can withstand various environmental conditions, making it a reliable companion for camping, construction sites, or emergency situations. The chassis is solidly built, and designed to endure the vibrations and movements that come with transportation or usage in rough terrains.

Champion 100555 4375-W 7-HP Portable RV Ready Gas Powered Generator Review

Its heavy-duty frame not only provides stability but also protects the internal components from damage. Additionally, the air-cooled OHV engine ensures optimal performance while effectively managing the generator’s temperature. The attention to detail in its construction offers users a sense of assurance, knowing that this generator is engineered to last and perform consistently, even in challenging situations.

Champion 100555 4375-W 7-HP Portable RV Ready Gas Powered Generator Review

The Champion 100555 generator strikes a balance between functionality and an aesthetically pleasing design. While it may not focus entirely on sleekness, its utilitarian design is practical and purposeful. The overall layout is well-organized, providing easy access to essential components for maintenance or operation. The bright color accents on a predominantly black body make it visible in different light conditions, which is particularly useful in emergency situations or low-light environments.

Champion 100555 4375-W 7-HP Portable RV Ready Gas Powered Generator Review

The control panel is intuitively designed, offering clear indications for start, stop, and other essential functions. It’s a design that prioritizes user-friendliness. The addition of anti-vibration feet not only enhances stability but also prevents unnecessary movement and noise. Overall, while the aesthetics lean more towards functionality over flashy design, it’s an intentional approach that aligns well with the intended outdoor and emergency use of the generator.

Power and Performance

The heart of any generator is its power output. The Champion 100555 boasts a robust 4375-watt output, making it more than capable of handling the demands of your RV appliances, from air conditioners to microwaves. During my testing, this generator effortlessly powered my 15,000 BTU air conditioner, leaving me with no worries about the scorching summer heat during my travels.

Champion 100555 4375-W 7-HP Portable RV Ready Gas Powered Generator Review

The 7-HP engine, combined with a 3.4-gallon fuel tank, provides a respectable runtime of up to 12 hours at 50% load. This extended runtime means fewer interruptions for refueling, allowing you to enjoy your trip without constantly monitoring the generator. It’s worth noting that the Champion 100555 is also RV-ready, featuring a 30-amp RV outlet, ensuring a seamless connection to your RV’s electrical system.

Portability and Convenience

The Champion 100555 is a revelation in terms of portability and convenience. Weighing in at just 122 pounds, this generator is surprisingly lightweight given its robust power capacity. What sets it apart, however, is its user-friendly design. Equipped with sturdy wheels and a fold-away handle, maneuvering this generator around your campsite or RV becomes a breeze.

Champion 100555 4375-W 7-HP Portable RV Ready Gas Powered Generator Review

Even for solo travelers or those with limited physical strength, the Champion 100555 can be effortlessly transported. Its compact design is a game-changer for RV enthusiasts who are all too familiar with the challenge of optimizing storage space. You’ll find that it slots neatly into your RV’s compartments, leaving more room for other essentials and sparing you the headache of packing and unpacking.

Quiet Operation

One of the standout features of the Champion 100555 is its exceptionally quiet operation. Generating a mere 68 decibels (dBA) of noise, it significantly outperforms many competitors in its class. This hushed performance is a game-changer when camping in close quarters with fellow outdoor enthusiasts. Gone are the days of loud, disruptive generators that make you the unwanted campsite noisemaker.

Champion 100555 4375-W 7-HP Portable RV Ready Gas Powered Generator Review

With the Champion 100555, you’ll relish the serenity of the great outdoors without causing disturbances to your camping neighbors. It’s an invaluable feature that enhances the overall camping experience, allowing everyone to appreciate the tranquility and natural sounds of the environment while still enjoying the modern conveniences a generator provides.

Visual Concept Review

The Champion 100555 4375-W 7-HP Portable Gas Powered Generator is a robust and utilitarian power solution with a design that prioritizes functionality and visibility. Its bright color accents on a predominantly black body enhance its visibility in various lighting conditions, a practical feature for emergency or low-light situations. The control panel’s intuitive layout, clear indicators, and well-organized components make operation straightforward.

The generator’s sturdy frame and well-placed wheels not only ensure stability but also facilitate easy transportation, highlighting the manufacturer’s focus on practicality. While it may not have a flashy or stylish design, the Champion 100555’s visual concept aligns well with its intended purpose – delivering dependable power in a user-friendly and reliable package.

Comparable Consideration

In the world of portable RV generators, the Champion 100555 faces some competition. One of the notable contenders is the Honda EU3000iS, known for its quiet operation and clean power output. However, it falls short in terms of power, with a 3000-watt rating, making it less suitable for powering larger RVs with high-demand appliances. When compared to the Champion 100555, the Honda EU3000iS is quieter but less powerful. If you prioritize power and a more budget-friendly option, the Champion 100555 is the better choice.

Comparison Table

FeatureChampion 100555 GeneratorHonda EU3000iS Generator
Power Output4,375 Watts3,000 Watts
Engine Type4 Stroke 7.0 HP 208cc4-Stroke, Single Cylinder
Fuel TypeGasolineGasoline
Runtime at 50% LoadUp to 12 hoursUp to 20 hours
Electric StartNoYes
Noise Level68 dBA49-58 dBA
PortabilityWheels and Fold-Away HandleBuilt-in Wheels and Handle
Weight122 pounds131 pounds
Number of Outlets42
Fuel Tank Capacity4.8 Gallons3.4 Gallons
Parallel CapabilityYesYes
Competitive Analysis
  • Power Output: The Champion 100555 outperforms the Honda EU3000iS in terms of power output, providing 4,375 watts compared to the Honda’s 3,000 watts. This makes the Champion generator more suitable for larger RVs or situations where higher power demands are required.
  • Runtime: The Honda EU3000iS boasts a longer runtime of up to 20 hours at 25% load, making it more fuel-efficient for extended use. However, the Champion 100555 offers a respectable 12-hour runtime at 50% load.
  • Electric Start: The Honda generator has an electric start, offering added convenience, while the Champion 100555 relies on a recoil start.
  • Noise Level: The Honda EU3000iS is quieter, operating at 49-58 dBA, compared to the Champion 100555’s 68 dBA. The lower noise level of the Honda generator makes it more suitable for quieter environments.
  • Portability: Both generators are designed for portability, with wheels and handles for easy transportation. The Champion 100555 is slightly lighter at 122 pounds, while the Honda EU3000iS weighs 131 pounds.
  • Fuel Tank Capacity: The Champion 100555 has a larger fuel tank capacity of 4.8 gallons, allowing for longer runtime between refills, whereas the Honda EU3000iS has a 3.4-gallon fuel tank.
  • Parallel Capability: Both generators are parallel capable, meaning you can connect two units to increase power output, providing flexibility for your specific power needs.

To sum it up, the choice between the Champion 100555 and the Honda EU3000iS depends on your specific requirements. The Champion generator offers more power, making it suitable for larger RVs and higher power demands. On the other hand, the Honda generator excels in terms of fuel efficiency, noise level, and electric start, making it a more suitable choice for quieter environments and extended usage with fewer interruptions for refueling.

Pros and Cons


  • Impressive Power Output: The 4375-watt output is more than enough to power your RV appliances, including air conditioners.
  • Long Runtime: With up to 12 hours of runtime, you can enjoy uninterrupted power during your trips.
  • RV-Ready: The 30-amp RV outlet ensures a hassle-free connection to your RV’s electrical system.
  • Portability: Lightweight and equipped with wheels and a handle, it’s easy to move and store.
  • Quiet Operation: Generates minimal noise, making it a considerate choice for campgrounds.


  • Limited Fuel Options: This generator only runs on gasoline, so you’ll need to have a supply of gasoline on hand.
  • No Electric Start: It relies on a recoil start, which might not be as convenient as an electric start for some users.

Best Uses For

  1. RV Adventures: The Champion 100555 is exceptionally well-suited for RV enthusiasts. Its RV-ready design with a 30-amp outlet and robust power output can effortlessly handle the electrical demands of most RVs. Whether you’re camping in a remote location or at a full-service RV park, this generator ensures you have a reliable power source for your appliances, including air conditioners, microwaves, and entertainment systems.
  2. Emergency Backup Power: In times of power outages or emergencies, the Champion 100555 shines as a reliable backup power source for your home. It’s capable of running essential appliances like refrigerators, lights, and sump pumps, ensuring your family remains comfortable and safe during unexpected outages. Its long runtime and ample power capacity make it an ideal solution for extended power needs during emergencies.
  3. Construction and Job Sites: For industrial and construction settings, the Champion 100555 is a valuable asset. It can provide power to tools, equipment, and lighting, enhancing productivity on job sites. Its sturdy build and portability make it easy to transport to different work locations, and the generator’s robust power output ensures that you can operate a variety of tools and machinery effectively.


After extensive use and testing, I can confidently say that the Champion 100555 4375-W 7-HP Portable RV Ready Gas Powered Generator is a top choice for RV enthusiasts. Its impressive power output, extended runtime, and quiet operation make it a reliable companion for your adventures. While it may not offer the convenience of an electric start or alternative fuel options, it excels in all the key areas that matter most for RVers. For those looking to power their RV appliances with ease and enjoy the great outdoors without disruptions, the Champion 100555 is the best choice. I’ve relied on it for my RV adventures, and it has never let me down. This generator is an excellent investment in comfort and convenience during your travels.

Frequently Asked Questions

  1. What appliances can the Champion 100555 power?
    The generator can power a variety of appliances, including refrigerators, air conditioners, microwaves, lights, TVs, and more. However, the specific power requirements of each appliance should be considered against the generator’s output capacity.
  2. Is the Champion 100555 suitable for use in RVs?
    Yes, the Champion 100555 is RV-ready and equipped with a 30-amp RV outlet, making it ideal for powering most RV appliances and electrical systems.
  3. What is the runtime of the generator on a full tank of gasoline?
    With a 4.8-gallon fuel tank, the generator can run for up to 12 hours at a 50% load, providing a decent span of uninterrupted power.
  4. Does it have an electric start or recoil start mechanism?
    The Champion 100555 features a reliable recoil start mechanism. There’s no electric start option available in this model.
  5. What is the noise level of the Champion 100555?
    This generator operates at around 68 decibels, providing relatively quiet performance compared to many other generators in its class, enhancing comfort in various settings.
  6. Can the generator be used for sensitive electronics or devices?
    Yes, the generator is equipped with built-in surge protection and produces clean power suitable for sensitive electronics. However, it’s recommended to use additional surge protectors for added safety.
  7. Is the generator suitable for emergency backup power at home?
    Yes, the Champion 100555 is designed for emergency backup power, offering enough wattage to power essential appliances during outages.
  8. What maintenance does the generator require?
    Regular maintenance includes checking oil levels, spark plugs, air filters, and general cleaning. Additionally, periodic service for the engine is recommended as outlined in the user manual for optimal performance and longevity.

We’d greatly appreciate your feedback! Please feel free to share your own experiences and opinions about the Champion 100555 4375-W 7-HP Portable RV Ready Gas Powered Generator in the comments section below. Your insights can be incredibly valuable for fellow RV enthusiasts, assisting them in making well-informed decisions for their power needs on the road!

Edward Smith
Edward Smith
Forestry Author

Woodworking is about more than crafting; it's a harmonious connection with nature, mastering tools, and preserving our environment. I'm here to share my knowledge and experiences with you, forging a future where we can embrace wood's beauty and utility while safeguarding our forests' health and diversity.


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