Best Generator for Small RV – 2025 Reviews

Start by listing the appliances you’ll run simultaneously in your small RV. Common items like lights, a fridge, and a phone charger might need 500-1000 watts, but add an air conditioner or microwave, and you could require 2000-3000 running watts. Always check the starting watts for motors, as they can spike—for example, a 13,500 BTU AC might need 2800+ watts to start.

Underestimating your needs can leave you in the dark, while overestimating means carrying unnecessary weight and cost. Use online wattage calculators or consult your RV manual for precise numbers.

Inverter generators produce clean, stable power that’s safe for sensitive electronics like laptops and TVs, making them ideal for modern RVs. Conventional generators are often louder, less efficient, and can damage devices with power surges. For small RVs, inverters are generally worth the investment for their quiet operation and reliability.

However, if you’re only powering basic tools or don’t have electronics, a conventional generator might save you money. Just be prepared for more noise and vibration.

Gasoline generators are common and easy to refuel, but gasoline can degrade over time and isn’t always available in remote areas. Dual fuel models that run on gasoline and propane offer flexibility—propane burns cleaner, stores longer, and is often cheaper. For small RV owners, dual fuel adds convenience but may reduce power output slightly on propane.

Consider your travel habits: if you camp near propane sources or want longer shelf life, dual fuel is a smart choice.

Nothing ruins a peaceful campsite like a loud generator. Look for models rated under 60 dBA for quiet operation—that’s about the volume of a normal conversation. Inverter generators typically excel here, with some as low as 52 dBA. Check the decibel rating at 23 feet, as this is the standard measurement distance.

Remember, quieter generators often cost more, but they’re worth it for harmonious camping and compliance with park rules.

Small RVs have limited storage, so weight and size matter. Lightweight generators under 50 pounds are easier to lift and store, while heavier models might require wheels. Consider how you’ll transport it—in your RV’s compartment or a vehicle trunk—and measure your space before buying.

Portability isn’t just about weight; compact designs with handles or wheels make setup and teardown smoother after a long day on the road.

Carbon monoxide (CO) sensors are crucial for RV use, as CO buildup in enclosed spaces can be deadly. Many modern generators include auto-shutdown if CO levels rise. Also, look for low-oil shutdown to prevent engine damage and overload protection to avoid circuit issues.

Always run generators outdoors and away from windows or vents, but these features add an extra layer of security for you and your family.

Long run times mean less frequent refueling, which is handy for overnight power or remote camping. Generators with eco modes adjust engine speed to load, saving fuel and reducing noise. Aim for at least 8-10 hours per tank at 25% load for typical RV use.

Check the fuel tank size and consumption rates—smaller tanks might be lighter but require more stops, while larger tanks add bulk but extend independence.

Ensure the generator has a TT-30R RV outlet for easy plug-in without adapters. Additional outlets like USB ports or 12V DC can charge devices directly. Parallel capability lets you connect two generators for more power, useful if your needs grow.

Test the outlets for ease of use and compatibility with your RV’s power cord to avoid frustration at the campsite.

For most small RVs, a generator with 3000-4000 running watts is sufficient to power essentials like a fridge, lights, and an air conditioner. If you only need basics like lighting and charging, 2000 watts might suffice. Always calculate your total wattage by adding the running watts of all appliances you’ll use simultaneously, and include extra for starting surges.

Never run a generator inside your RV or in an enclosed space, due to the risk of carbon monoxide poisoning. Always place it outdoors, at least 20 feet away, with exhaust directed away from windows and vents. Use extension cords designed for outdoor use to connect to your RV.

Inverter generators are significantly quieter than conventional models, often operating at 50-60 dBA—similar to a normal conversation. This makes them ideal for campgrounds where noise restrictions apply. Models with eco modes can be even quieter when power demand is low.

Dual fuel generators offer flexibility and cost savings by running on gasoline or propane. Propane burns cleaner, reducing engine maintenance, and it has a longer shelf life than gasoline. This is especially useful in areas where one fuel type is more accessible or affordable.

Most portable generators can run for 8-12 hours on a full tank at 50% load, but check the specific model’s run time. Avoid running them continuously for more than 12-24 hours without cool-down periods to prevent overheating. For extended use, consider models with larger fuel tanks or eco modes for efficiency.

If your RV has sensitive electronics like laptops, TVs, or medical devices, yes, an inverter generator is recommended for clean, stable power. Conventional generators can cause damage due to power fluctuations. For basic power needs without electronics, a conventional generator might be acceptable but noisier.