Portable RV Generators

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A portable generator gives you flexible power wherever you need it, without the permanent installation that comes with an on board unit. For campers who dry camp occasionally, need a backup power source, or want a generator they can use beyond their RV, a portable unit is a practical and cost-effective choice.

Portable RV generators are available in a range of wattage outputs to suit different power needs, from running basic essentials to supporting a rooftop air conditioner. Inverter-style portable generators are a popular choice for RV use, offering cleaner power output that is safer for sensitive electronics.

Before ordering, add up your essential appliances' wattage requirements, including startup loads, to make sure you select a unit with enough output capacity.

What size portable generator do I need for my RV?

Match the generator's running watts to your largest load, usually the air conditioner. A 13,500 BTU rooftop unit typically draws 2,800 to 3,500 starting watts and 1,500 to 2,000 running watts, so a 3,500 to 4,000 watt inverter generator handles it with margin for a microwave or fridge running alongside. For a 15,000 BTU AC plus other loads, step up to 4,500 watts or higher. Check the data plate on your Coleman ducted ceiling assembly or rooftop unit for exact startup amps before ordering.

Are propane, gas, or diesel generators better for RV use?

Each fuel type fits a different use case. Gasoline inverter generators are the lightest and least expensive, good for weekend camping and quiet operation. Propane runs cleaner, stores indefinitely, and can tie into your existing LP system, useful for snowbirds and long trips. Diesel generators match diesel pushers and toy haulers that already carry diesel fuel, eliminating a second fuel supply. Pick based on what your rig already burns and how often you boondock.

What plug and adapter do I need to connect a portable generator to my RV?

Most 30-amp RVs use a TT-30 plug, and most 50-amp coaches use a 14-50. Generators in the 3,000 to 4,500 watt range usually have a 30-amp TT-30R outlet built in, so a straight cord works. If your generator outlet does not match your shore cord, you will need an adapter. See the RV plug adapters collection for the correct dogbone or twist-lock fitting, and add a surge protector between the generator and the coach to protect onboard RV electronics.

Can a portable generator run my RV air conditioner?

Yes, if the wattage is sized correctly and the AC has a soft start installed or a low enough inrush spec. A 3,500 watt inverter generator will start most 13,500 BTU units; a 15,000 BTU unit usually needs 4,500 watts or a soft start kit to drop inrush current by roughly 70 percent. Confirm the model number on your rooftop AC before buying so you can match starting watts to the published LRA rating.

Do these portable generators ship freight, and what is the delivery timeline?

Generators under about 100 pounds ship via standard ground carrier in 3 to 7 business days. Larger diesel and dual-fuel units over 100 pounds ship truck freight, typically 5 to 10 business days with a curbside delivery appointment. Free shipping applies on qualifying orders over $100. If you need help confirming which fuel type and wattage fit your rig, text or call 817-984-1852.