OFF-GRID POWER IS A BLESSING if you can’t find available campsites when you want them. While most motorhomes come with factory-installed onboard generators, towable RV owners typically need a portable generator for boondocking or those one-night stays between campgrounds. In this guide, we’ll explore the RV inverter generator vs generator debate and help you choose the best generator for your RV needs.
Key Takeaways
- Inverter generators produce cleaner, quieter, and more fuel-efficient power than conventional generators, making them ideal for RVers who boondock, visit noise-restricted campgrounds, or need to power sensitive electronics.
- Key features include wattage capacity, parallel capability, RV-ready outlets, portability, noise level, runtime, and fuel type.
- Top brands like Honda, Champion, Cummins, and A-iPower offer models for everyone from weekend campers to full-timers. Their best inverter generators balance power output, quiet operation, and ease of use.
What Is an Inverter Generator?
An inverter generator is a portable generator that produces more stable, efficient electricity than conventional models. It converts AC (alternating current) power to DC (direct current) power and then inverts it to a cleaner, more consistent AC output. This makes power safer for sensitive electronics like laptops, smartphones, and RV appliances with circuit boards.
Inverter generators for RV camping also have advanced microprocessors that adjust engine speed based on the power demand, making them more fuel-efficient and significantly quieter than traditional generators.
How Does It Differ from a “Regular” Generator?
The most significant differences between an inverter and conventional generators are power quality, noise, size, and fuel efficiency.
- Power Quality: Inverter generators produce cleaner energy with less harmonic distortion, making them safer for sensitive electronics.
- Noise Levels: Inverter models are much quieter. Many operate below 60 decibels, roughly equivalent to the sound in a decently busy restaurant. Compared to a traditional generator’s louder, droning hum, it’ll make your camp neighbors much happier.
- Portability and Size: Inverter generators are generally more compact and lightweight, making them easier to store in basement compartments, strap to an RV cargo carrier, or transport around a campsite.
- Fuel Efficiency: Unlike standard generators that run constantly, inverter generators adjust engine speed to match demand, conserving fuel and extending runtime.
However, conventional generators usually deliver more raw power at a lower cost, which is ideal for high-demand scenarios, when noise isn’t a concern, or when you don’t have the budget for a more expensive generator.
Do You Need an Inverter Generator for Your RV?
Whether you need an inverter generator depends on how you camp and what you power. An inverter generator is a wise investment if your RV power needs are modest and you value peace and quiet. Here’s when an inverter generator is best:
Boondocking or Dry Camping: Inverter generators are perfect for off-grid RV camping when you need quiet, efficient power overnight or in remote areas where noise ordinances apply.
National Parks and Campgrounds with Quiet Hours: An inverter generator’s low-decibel operation helps you comply with campground rules.
Running Sensitive Electronics: If you need to power a CPAP machine, laptop, or other electronics, the stable output of an inverter generator is essential.
Weekend Warriors & Smaller RVs: Their smaller footprint and ease of use make them ideal for shorter trips in smaller towable RVs and camper vans.
Tips for Selecting an RV Inverter Generator
Choosing the right inverter generator involves more than picking the quietest camping generator. Consider these tips:
Know Your Power Requirements
Calculate how many watts you need to power your essential RV appliances. Some appliances — like air conditioners, refrigerators, and microwaves — require a surge of extra power to start, known as starting (or peak) watts, in addition to their continuous running watts.
List all the devices you plan to run simultaneously and add the total wattage. Generally, a 2,000 to 3,000-watt inverter generator is sufficient for most travel trailers, while larger fifth wheels or motorhomes may need more output, especially when running multiple high-draw appliances.
Remember that inverter generators typically have smaller wattage ranges than conventional models, so it’s essential not to undersize. If you run your RV air conditioner and microwave simultaneously, you’ll quickly exceed the capacity of a lower-wattage model. Always choose a generator that offers a buffer above your estimated usage to prevent overloads and ensure smooth performance.
Learn more about RV generator sizing.
Look for Parallel Capability
Some inverter generators are parallel-capable. They can connect to a second compatible generator to double your total wattage output. This is ideal if you want the flexibility to run a small, lightweight generator for basic needs and add a second when you need extra power. Generator parallel kits are usually sold separately and include cables to connect the two units.
This feature allows you to future-proof your purchase. You can start with a smaller inverter generator and add a second one as your power needs grow. This is also an excellent option for couples or families who only need one generator for weekend trips but want added capacity for longer off-grid adventures.
Check for RV-Ready Outlets
An inverter generator with RV-ready outlets — especially a 30-amp receptacle — makes setup much easier. They allow you to plug your shore power cord directly into the generator without an electrical adapter. Many RV inverter generators also include USB ports and 12V DC outlets, which are handy for charging small electronics without using your RV’s electrical system.
Proper outlet compatibility is more than just convenience — it affects performance. Using an adapter with a non-RV outlet may not allow your RV to access full generator power, which could limit the appliances you can run. Always look for an inverter generator labeled “RV ready” to ensure maximum compatibility and efficiency.
Consider Portability
One of the most significant advantages of inverter generators is their compact, portable design. Look at the generator’s overall size, weight, and mobility features like built-in wheels or telescoping handles. If you camp in remote areas or store gear in a truck bed or RV basement, a smaller footprint and lightweight construction make a big difference.
Larger generators offer more power but tend to weigh more, sometimes over 100 pounds. If you often camp solo or want something easy to lift and reposition, consider inverter generators under 60 pounds with molded handles. The easier it is to transport, the more likely you’ll use it regularly during your travels.
See why the Honda EU3200i might be the best portable generator.
Evaluate Noise Output
Inverter generators operate quietly, often between 50 and 60 decibels at a quarter load. This makes them perfect for early mornings, late evenings, or camping in areas with strict noise ordinances, such as national parks or BLM land.
Pay attention to the decibel rating and note whether it’s measured at a full or quarter load — some manufacturers list the quieter rating to appear more appealing. Also, consider your RV’s layout. Quieter is always better if you place the generator near your bedroom or other campers. A low-noise decibel rating helps you maintain good campsite etiquette and enjoy the peace of nature.
Check Runtime and Fuel Type
Runtime is essential if you camp without hookups for extended periods. Inverter generators with Eco Mode or variable engine speeds run longer on less fuel, sometimes offering up to 10–20 hours of runtime on a single tank, depending on load. Always compare runtime at 25% or 50% load because it gives you a more accurate picture of how long the generator will realistically last under regular use.
Also consider fuel type. Many inverter generators run on gasoline, but dual-fuel models offer the flexibility to run on propane, which can be safer to store, burns cleaner, and is often already on board your RV. If you boondock frequently or travel in areas with limited fuel access, a dual-fuel inverter generator offers more flexibility and helps you stay powered longer without resupply.
Best Inverter Generator Brands
Inverter generator manufacturers offer various models, so you must match your RV’s energy needs to the right size generator. Here are some of the top-rated inverter generator brands:
- Honda: Known for ultra-quiet operation, long-lasting reliability, and top-tier power quality. A favorite among full-time RVers.
- Champion: Offers excellent value with RV-ready outlets, dual-fuel options, and quiet performance at competitive prices.
- Cummins: A longtime name in RV power systems, Cummins inverter generators deliver reliable performance tailored for mobile use.
- A-iPower: Affordable models with good wattage and solid features for entry-level RVers.
What’s the Difference Between an Inverter and a Generator?
The terms inverter and generator are often confused, but they refer to different devices.
Generators (inverter or conventional) produce electricity from fuel, typically gasoline, diesel, or propane.
Power inverters take DC power (from your RV’s battery or solar system) and convert it into usable AC power, without generating electricity themselves.
In essence, a generator creates power, while an inverter converts power. Inverter generators combine both functions: they generate electricity and use an inverter to produce clean, stable power.
Learn more about RV inverters and converters.
Use the additional resources to find the best generator for camping in your RV:
- Top-Rated Portable RV Generators
- Best 30 Amp RV Generators
- Best 50 Amp RV Generators
- Portable Generator Safety Tips
What questions do you have about inverter generators? Let us know in the comments below.
