What Size Generator for My RV – 30 Amp and 50 Amp Options

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What Size Generator for My RV

The correct size generator for your RV is essential, and you need to choose it wisely. There are multiple different types of generators that you can consider.

People usually ask about what size generator for my RV? Well, it depends on your requirement and use. You have to consider whether your RV is 30 amp or 50 amp. Furthermore, evaluate all your electrical needs.

You have to consider how many appliances you want to operate and many other things like fuel type, the wattage of the Generator, and cost before making any purchases.

This guide has discussed all the parameters you can consider in your checklist. Carefully evaluate every aspect first, then proceed towards purchasing.

In the end, we have listed recommended generators for both 30 amp and 50 amp RV for your convenience. You can check their features and consider the one that suits you the best.

What Size Generator for My RV? Buying Guide to Choose the Best Generators for your RV

When you purchase a generator for your RV, you have to think critically before deciding. By considering the type of your RV, and many other factors, you can make the right product choice. The size of the Generator you want to purchase depends on the specific equipment within the RV.

The equipment within your RV will help identify the generator size you need. To figure it out, you need to evaluate a few things first.

At first, consider the electrical power required by each appliance and device. You can check the amount of electricity each machine needs and sum up the power requirement of all the electrical appliances operational in your RV to get an exact significant figure.

Another thing that you have to monitor is the usage pattern for the appliances and devices. For instance, you would likely not operate all these appliances at a time. Moreover, some appliances like refrigerators will run more frequently than others, like toasters.

At last, you have to calculate the difference between starting and running power. Some appliances need more power for a short time at the beginning of their operation. Like AC units would draw much more power when they start.

Things you Need to Review Before Purchasing a Generator for your RV

A 30 amp or 50 amp generator is used to power up the RV and its electrical appliances. You have to figure out the Generator needed to pull up the specific camper or trailer. Always count how much power you need to operate your RV effectively. The following detailed guide will teach you about what you should consider before purchasing a generator system model that will not disappoint:

Power Output of the Generator

The Generator’s wattage will determine the power the Generator can provide in an hour. The more the wattage, the higher power it will generate. It might be necessary for powering the appliances and running a few small tools.

Noise Level of the Generator

Like any other sound, the sound level of a generator is also measured in decibels. The sound that is measured below 55 dB is acceptable for residential use. On the contrary, if the sound of anything exceeds the limit, you cannot sleep near it, and you cannot even hear the conversation with the person next to you.

Portability of the Generator

Some of the RV generators are light and easy to move. Some generators can be mounted onto a hitch; you can easily use them with your RV. On the other hand, the other generators have wheels that can be maneuvered easily from place to place.

Ease Of Installation

Most portable generators will come complete with all necessary hardware required for installation. If you purchase an RV generator system as a stand-alone model, the assembly will be required.


Most generators are designed to power the appliances usually included in a camper or trailer, for example, DVD player, TV, lights, and many others. However, they might not have enough running wattage for other things, including air conditioners, microwaves, and electric ovens.

Fuel Type

Some generators operate on gas to produce power, while others utilize propane or natural-gas fuel sources. Propane is the second choice as a fuel in the case of RV generators. It is readily available and easy to use, but it can also be expensive if you have an extended stay at your destination.

Parallel Capability

Some generators can function on the same circuit as other electrical appliances. It is a key feature to consider, mainly if you are limited in space with your camper or trailer.


Several prices depend on your Generator’s size and the features you are searching for. Online retailers will give you competitive pricing when buying directly from them. Beware of inflated costs by dealers that might be there at some big-box retailers.

Economy Mode

It is the speed at which a generator works. The mode should be used for low-demand activities such as watching TV and charging electronics.

  • Low Mode – An excellent power-saving option to use when using appliances in the RV after you have put off the engine and turned off anything, not in use inside of it. The low mode will still operate fast enough to cool down the Generator, but it will use less fuel.
  • High Mode – The most powerful model on your Generator should be used for appliances that need more power, like an electric oven or stovetop burners, clothes dryers, and an air conditioner/heater unit.
  • Turbo mode is an excellent power-saving option to use when running appliances in your RV after you have shut down the engine and turned off anything not being used inside it. The low mode will still operate fast enough to cool down the Generator, but it will use less fuel.

Fuel Efficiency

Fuel efficiency is your top priority. You must check that you have sufficient fuel on hand, and the Generator needs to use what it has efficiently.

Prices pulled from the Amazon Product Advertising API on:

The Best Generators For 30 AMP RV

1. Honda EU3000I Handi 3000W Inverter Portable Generator

Honda EU3000I Handi 3000W Inverter Portable Generator

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It is among the best generators for 30 amp RV. It starts up immediately, even in cold weather as well. It is a perfect choice for your RV.

It is also safe and reliable with its low emission technology, making it one of the best generators for 30 amp RV.

It is an EPA-certified device and is also eco-friendly. It does not produce any poisonous carbon emissions like other typical generators that use gasoline or diesel fuel to run their motor.

It has a low noise level which is ideal for camping trips where you want some peace during the night to sleep well.

It generates power up to 3000 watts which is ideal for running sensitive electronics. You can also power up the conditioner, microwave oven, television set, and more, but occasionally only.

The Generator is provided with a low oil warning system, and it is also capable of maintaining its filter and oil change system.

2. DuroMax XP4850EH Generator-4850 Watt

It can generate colossal Power output, including the starting watts up to 4,850 and 3,850 running watts.

You can light up multiple applianced as the power units it generates can easily bear heavy loads, like lights and a refrigerator to a home air conditioner and high amperage power tools.

It has Dual Fuel Technology, and it can run on gasoline or propane. Hence, it gives you the freedom and flexibility of fuel choice.

It has a Powerful Engine, the DuroMax 210cc OHV engine. The engine is a workhorse that provides vast power outputs. The plenty of power makes the GeneratorGenerator capable enough to handle multiple jobs, including the functioning of high voltage appliances to heavy-duty power tools.

With its MX2 Technology, you will get the maximum power from each of the 120-volt receptacles. You can choose between operating the GeneratorGenerator at both 120V and 240V simultaneously or 120V only with full power. The features make it ideal for usage with RVs.

It also has a Fully Featured Power Panel. The power panel consists of a wide selection of outlets for maximum compatibility in your applications. The panel also has 12V DC charging ports for external batteries and a voltmeter.

3. Champion 100307 4375/3500-Watt RV Ready Portable Generator

The Champion 3500-Watt Dual Fuel RV Ready Portable Generator is ideal for a 30 amp RV.

The portable generator’s dimensions are; its length is 23.2″, breadth is 19.1″ W, and it has a height of 20″. The overall weight of the Generator is 104.9 lbs.

It produces a noise level of only 68 dBA; hence, if you plan to go camping with your RV, Champion 3500-Watt Dual Fuel RV Ready Portable Generator is the right choice to consider.

It has a great engine having a size of 224cc. Moreover, it has a unit that holds 0.6-quarts of oil and has a low oil shutoff sensor.

It has dual fuel options for its users, and you can operate it on gasoline or propane at your ease and convenience. The fuel tank capacity is 3.4 gallons.

You can keep track of voltage, hertz, and run-time hours, easily monitor the power output, and track maintenance intervals with Intelligauge.

It has several outlets, including; one 120V 30A RV outlet (TT-30R), one 120V 30A locking outlet (L5-30R), and two 120V 20A household outlets (5-20R).

Full Review

The Best Generators For 50 AMP RV

1. Champion 8000-Watt Portable Generator

Champion 8000-Watt Dual Fuel Portable Generator is a powerful generator with starting watts of 10,000, and running watts are around 8000 while operating on gasoline. In the case of propane, the starting watts are 9025, and the running watts are 7250.

It has a dual fuel feature that enables you to operate the 8000-watt portable Generator on gasoline or propane. Also, the unit holds 1.2-quarts of oil (included) and has a low oil shutoff sensor.

The electric start power up the 459cc Champion engine with the handy toggle switch making it easy to use.

It keeps track of voltage, hertz, and run-time hours to monitor power output easily and track maintenance intervals.

Its champion Support features include a 3-year limited warranty with free lifetime technical support from dedicated experts.

2. DuroMax XP13000HX Dual Fuel Portable Generator

It has an all-new control center with a digital multimeter, push-button start, and a front-facing fuel interface that allows you to change your fuel type in seconds.

The digital multimeter also displays voltage, frequency, total hours run, and hours until the recommended maintenance.

It is a gasoline-powered generator and can also run on propane, which gives you the freedom and flexibility of fuel choice.

It is equipped with DuroMax “CO Alert Technology.” The outstanding feature lets it automatically shut down if an unsafe level of carbon monoxide is detected.

It is built using a powerful 500cc OHV DuroMax engine and features ALL COPPER WINDINGS designed to make your Generator last for years.

Its fully loaded power panel includes four 120V GFCI household outlets, one 120/240V 30AMP twist-lock outlet, one 120V 30AMP outlet, and a heavy-duty 120/240V 50AMP outlet making it transfer switch ready.

Full Review

3. Durostar DS12000EH Portable Generator

It has a powerful Durostar engine. It is powered by a DuroStar 18 HP 457cc OHV engine with automatic low oil shutoff.

The Generator has a capacity of 8.3 Gallons of fuel, and it produces a noise level of up to 74dB while functioning.

It is capable of generating plenty of power. It offers 12,000 peak watts and 9,500 running watts.

Moreover, it has a workhorse that provides enormous capacity to handle multiple jobs, including high voltage appliances to heavy-duty power tools.

Its power panel includes a selection of outlets for maximum compatibility in the applications, including 2 120V household outlets, 1 120V 30A twist lock outlet, 1 120/240V 30A twist-lock outlet, and 1 120/240V 50A heavy duty outlet.

It also includes a voltmeter and 12V DC charging ports for charging external batteries.

It offers maximum power with DuroStar MX2 technology. You can get incredible power from each of the 120V outlets.

You can opt between operating the Generator at 120V and 240V simultaneously or at 120V only with full power.

It has DUAL FUEL TECHNOLOGY and can run on gasoline or propane, giving you the freedom and flexibility of fuel choice.

Full Review

Frequently Asked Questions

What Size Generator Do I Need for a 30 amp RV?

The answer is 3,000 watts. You will usually require a generator that can provide you with at least 3,000 watts. You cannot go over 3,600 watts.

It would be an ideal choice to find a generator somewhere in the middle or closer to 3,600 watts; hence you always have enough power for different situations.

Can a 30 amp Generator Run a 50 amp RV?

Yes, it is possible to power the 50-Amp RV using a 30-Amp generator. However, it will demand power management. A 30-Amp generator generates approximately 4,000 watts.

The wattage is enough to run an air conditioner and other standard electronics.

How Many Watt Generators Do I Need for a 30 amp Camper?

A 3,000-watt generator will be the best choice for a 30 amp camper. The Generator will efficiently power up most 30 amp RVs. You can easily operate multiple electrical appliances, including the AC units, with no problem.

How Many Watts Does a 50 amp RV Use?

The minimal requirement of a 50 amp RV is approximately 12,000 watts. It has a shore power connection usually has two separate 50-amp feeds.

A 50-amp RV with a 120 V electrical feed can handle 12,000 watts of electric power. You can easily power up multiple electrical appliances, including an air conditioner as well.

Will a 3500-watt Generator Run a 30 amp Camper?

Yes, a 3500 watt will efficiently run your RV. Moreover, it can run just about any size RV. But, it depends on many appliances you want to run simultaneously. You may encounter several problems trying to run everything at once.

So, you need to evaluate your electrical requirements first and keep tracking the consumption while running the Generator.

Is a 4000-watt Generator Enough for RV?

Most RV generators produce electricity between 2000 and 4000 watts. A 2000-watt unit generator will be quite enough for an RV.

However, those who want to run the air conditioner or microwave will require something offering 3000 watts. Moreover, in some cases, you might need even more.

What Size Generator Do I Need for My RV?

The standard size for a portable or inverter generator for RV is 2,000 to 4000 watts. But RV generator size can also be as large as 12,000 watts.

More power is relatively better in some situations, but more power generators will be heavier, less fuel-efficient, and noisier.

No one unnecessarily wants to pack extra pounds on an RV, except when it is essential to bear. Hence, people usually choose between 2,000 to 4,000 watts of generators for their RVs.

Will a 5500-watt Generator Run a 50 amp Camper?

With starting watts of 5,500 and running watts of 4,500, you should have no problem running your 50 amp RV’s AC system and several other electrical appliances.

The option to consume up to 20 gallons of propane will be a game-changing approach for you because propane is a cheap and convenient source of fuel. Hence, you will be able to manage your fuel requirements efficiently.

Moreover, you can enjoy the perks of home comfort in your RV by effectively managing different electrical needs.

Is a 2000 watt Generator Enough for RV?

No, a 2,000-watt generator will not be enough to power up a genuinely luxurious RV trip for you. If you want to operate a refrigerator in your RV, you will keep it operational continuously when the Generator is plugged in.

The continuously working refrigerator will suck up around 700 watts. Moreover, it hits a surge up to 1,000 watts when you first plug it in.

Will a Honda 2000 Generator Run an RV Air Conditioner?

The answer is yes. But, there are some factors that you also need to consider. A Honda 2,000 watt generator will generate 1,600 watts of continuous power and 2,000 watts peak.

A comparatively small 10,000 BTU air conditioner will need at least 2,000 watts on startup and 700 watts of constant energy. Hence, you cannot run heavy electrical appliances on it as it could not cope with sudden huge.

Final Words

There are several different 30 amp and 50 amp RV generators available in the market. You will see it very challenging to select the right one for your RV. You will always wish to have the best camping products, like hiking backpacks.

It is best to figure out your top priorities and then decide how you should proceed accordingly. With the help of the reviews that we shared above regarding the top-rated products, you can effectively pick one of the best 30 amp RV generators for your unique situation.

Moreover, do not forget to consider the checklist provided above. Hence, you select the best Generator for your RV.