Did You Know There Are 12V DC Air Conditioners For RVs?

Air conditioning is a big concern for RVers, especially in the summer months. For people who like to camp off the grid as we do, the ability to fire up an air conditioner is a luxury we enjoy, no matter how far off in the boonies we may be. But, how do you run a power-hungry appliance like an AC unit when you’re camping in the middle of nowhere? That’s a challenge even with an ultimate RV solar panel system.

Firing up a generator to run the AC is one way to deal with hot weather, but that option is ill-suited to the peace some RVers seek in the boonies. Traveling to areas with a milder climate is another way to beat the heat. But neither a generator nor a travel schedule created to chase weather is ideal… or always possible. As it turns out, 12V DC air conditioners are a thing. Or are they just a cool concept with the promise of becoming a thing?

Let’s shake down the subject of 12V DC air conditioners to find out!

How Does a Typical RV Air Conditioner Work?

A typical RV air conditioner runs on a 120V AC power supply. This means that in order to use the appliance, an RVer must either be connected to shore power, be running a generator, or have a battery bank and an inverter capable of handling the power requirements (a huge solar system that can recharge or offset the huge power draw doesn’t hurt, either).

The problem with being connected to shore power is that it’s highly restrictive to those of us who prefer to boondock. The problem with running a generator is noise and exhaust (as well as fuel use). And the problem with using a solar system, battery bank, and inverter is that running an air conditioner consumes HUGE amounts of power… and while staying cool is nice, we all have other power needs, too.

When we had our Newmar motorhome, we had a couple of AC units/heat pumps on our rig. We upgraded them with Micro-Air EasyStart units that allowed us to get more use out of them in certain conditions. In fact, they allowed us to run two AC units on a small generator or a 30-amp hookup. We’ll let Peter explain:

But this isn’t the same as having the ability to run an AC unit on battery power. And this is precisely why RVers have long been interested in the development of 12V RV air conditioners.

What Is a 12V RV Air Conditioner?

A 12V air conditioner requires only 12V DC to operate. The kind you have available in your onboard battery bank. Air conditioners that run on 12V DC power are possible thanks to highly efficient compressors designed to operate on 12V current.

What Are the Advantages of a 12V RV Air Conditioner?

With traditional AC units that run on 120V AC power, the current from a battery bank needs to be converted from 12V DC to 120V AC. This conversion is accompanied by up to a 10-15% energy loss. With a 12V air conditioner, that conversion is unnecessary. So, a 12V air conditioner uses less power than a 120V air conditioning unit.

12V AC units can also run while the engine and the generator are OFF (again, assuming you have a sufficiently large battery bank to supply the power). This means that you can run an RV air conditioner on a hot, humid night without having to listen to a noisy generator (or disturb neighbors, if you have any).

What Are the Disadvantages of a 12V RV Air Conditioner?

12V air conditioners suffer efficiency losses due to their high current draw. This is because, by necessity, they use very large wires to connect them to the batteries. This alone can cause voltage drops and a loss of efficiency. Also, due to the high current draw of a 12V air conditioner, you need a very large battery bank and would probably need to invest in lithium batteries.

Even when powering your 12V air conditioner from shore power, you’d need a high-current inverter-charger or converter to replace the power being pulled from your batteries. And when your 12V air conditioner is running on shore power, your batteries will charge very slowly due to the AC unit’s high current draw.

For all of these reasons, the 12V RV air conditioners currently available are best suited for small RVs… so they don’t need to run as long or as often.

Are There Any 12V RV Air Conditioners Currently On the Market?

Though they’re not all that widely used, there are some 12V DC RV air conditioners already on the market. These air conditioners use high-efficiency compressors and can run entirely on 12V power. Let’s take a look at them now.

Dometic

Dometic’s RTX1000 and RTX2000 12V DC air conditioning units were developed from a 24V DC air conditioning model already commonly used in Europe. Dometic refers to these units as “Truck Air Conditioners” because they were originally modified for use by truck drivers as parking air conditioners. The intent was to preclude the need for truck drivers to leave their truck engines running for hours on end to keep the cab cool.

Here we’ve brought two photos together to show you a side and front view of a Dometic RTX1000. The RTX2000 has a near-identical appearance. (Photo credits: Dometic)

Known as the “Dometic CoolAir parking coolers”, these truck air conditioners not only save money, but they also reduce truck engine maintenance and fuel consumption, and are also far better for the environment. Available in the North American market for use by RVers, the RTX1000 and RTX2000 offer up to 12 hours of running time in Eco mode, with their highest-efficiency mode consuming only 18A in the RTX1000 and 19A in the RTX2000.

The RTX1000 offers 4,094 BTU (1,200 watts), while the BTX2000 offers 6,824 BTU (2,000 watts). Each has a Turbo mode for faster cooling, which requires higher power consumption. Dometic notes that its “parking coolers” are suitable for ambient temperatures of 41℉ to 126℉. All of the AC components are integrated into the roof unit, which is short and sleek, sitting only about 6 inches above your roof. The RTX1000 weighs 52.8 lbs while the RTX2000 weighs 72.6 lbs.

Be aware that neither of these units fits into a standard 14” x 14” rooftop opening normally used for RV air conditioners. An internal rooftop opening of 15.5” x 19” is required for the installation of either the Dometic RTX1000 or RTX2000.

Both units require a battery capacity of 180 Ah or better to operate. Also, note that these units are not heat pumps. They’re intended for cooling only, have a single thermostat zone, and come with remote controls.

Last we looked, the RTX1000 retailed for $2,700, and the RTX 2000 carried a price tag of $3,030.

Dometic RTX 1000 Air Conditioner | Efficent Eco Mode and Tubo Cooling AC with 12 Hours of Running Time | White | Ideal for Camper, RV, Truck or Bus

• ECO MODE: This self-contained truck and campervan air conditioner boasts 1200W (4,094 BTU) capacity, running for up to 12 hours on battery power, and...
• QUIET OPERATION: Operating quietly and efficiently, it's designed for ambient temperatures ranging from 41 °F to 126 °F, ensuring a comfortable...

$1,796.99

Buy on Amazon Price & availability info updated 2026-04-17 at 19:45.

Nomadic Cooling did an unboxing of the Dometic RTX2000 if you’d be interested in seeing it and hearing about their first impressions:

Nomadic Cooling

Nomadic Cooling offers two 12V air conditioners, the X2 and the X3 (each is also available in 24V or 48V models… we’re focusing on the 12V units here). The 12V X2 model draws a max of 27A in “Eco” mode and a 55A max in “Max Cool/ Powerful” mode at 85℉. Nomadic Cooling recommends using 4-gauge wire to connect the unit to power.

This is considerably higher power consumption than the Dometic unit, but don’t forget it also offers a higher cooling capacity of 8,188 BTU (compared to Dometic’s 6,824 BTU), suggesting it could cool a larger living space. This comes at a significantly higher price, though. The 12V X2 RV AC model costs $2,634.95 for the white version. You’ll pay an additional $199 for the Obsidian Black unit.

Here you see the white and black versions of the Nomadic Cooling X2 displayed. (Photo credits: Nomadic Cooling)

Nomadic Cooling’s X3 RV AC model offers a cooling capacity of up to 11,830 BTU. It draws 50A of 12V DC power in “ECO” mode and 110A in “Max Cool/ Powerful” mode. Nomadic Cooling recommends using 2-gauge wire to connect the unit to power.

Nomadic Cooling notes that “ECO” mode should be the default mode of operation, with “Powerful” mode reserved only for short periods to maximize cooling (such as when initially cooling down an RV that is hot inside).

You’ll be looking at a pretty hefty battery bank to run these units, which are powered by DC 12V/24V/48V batteries. Nomadic Cooling says that lithium batteries are preferred, but not mandatory.

Both of these units fit into any new or existing 14” x 14” rooftop opening.

Rigid/Campelify Micro 12V Cooling System

This unit represents a different approach to cooling a small space. It’s essentially a compact refrigeration cooling system kit that includes an R134a mini rotary compressor. It comes as a kit that includes a condenser, driver board, evaporator, fan, heat exchanger, and capillary mini rotary compressor.

The 12V (DC) cooling system uses vapor-compression technology to chill the air in a small, enclosed space. With a cooling capacity of only 1,535 BTU (450W) and a maximum power draw of 10A (150W), this system is best suited for very small campers or vans. The manufacturer notes that it will cool a space of approximately 35 cubic feet… which isn’t very much space.

Note that this unit can only cool to about 15-20 degrees below your ambient temperature.

12V Compact Refrigeration Cooling Systems Air Conditioning Systems with Miniature Rotary Compressor - for Electric Vehicle Chiller Water Dispenser Freezer Electronics Cooling Module DIY (12V,1.9cc)

• Maximum cooling temperature the micro dc a/c achieves, 15-20 degree C lower than that of your ambient temperature.It depends on your ambient...
• Rated Voltage: DC 12V; Max Current : 10A; Power:150W; Rated current:1~ 8A,Capacity: 450W (1,535Btu). Micro air conditioner module is a compact...

Buy on Amazon Price & availability info updated 2026-04-18 at 08:45.

Countrymod Pro

The Countrymod Pro is a 10,000 BTU 12V DC top-mounted air conditioner designed for RVs, vans, and trucks. Like the others, this rooftop unit runs directly on 12V DC power, so you don’t need an inverter, improving your off-grid efficiency. Additionally, it’s among the more powerful 12V cooling options available (10,000 BTUs), making it appropriate for very hot climates and larger campers.

At only 7.1″ high, the Countrymod Pro has a low-profile design and is easy to install, fitting into a standard 14″ x 14″ roof opening. It’s also quiet at 45dB and weighs in at just 54 pounds. Countrymod notes that this unit consumes just 0.3 kWh per hour, meaning that it’s capable of offering up to 12 hours of cooling with a 12V 400Ah battery. Scanning the reviews, we find this to be a fair estimate based on reviewers’ real-world usage.

You can read more about the Countrymod Pro 12V RV air conditioner here.

Countrymod 12V DC RV Air Conditioner 10000 BTU RV AC Unit Non-Ducted Rooftop RV Air Conditioners Portable Air Conditioner Quiet Cooling for RVs, Trailers, Fifth Wheel and Food Trucks

• 300-900W Inverter Design: 10,000 BTU of the Contrymod RV air conditioner can achieve rapid cooling. The variable frequency design intelligently...
• Energy-saving efficiency: Consuming only 0.3 kWh per hour, it is 5 times more efficient than a standard air conditioner (1.5 kWh/hour) and has a...

$939.00

Buy on Amazon Price & availability info updated 2026-04-17 at 19:45.

Would You Be Interested in a 12V RV Air Conditioner?

So, what do you think of the idea of a 12V RV air conditioner, and how do you feel about the development of the technology to date? Would you be interested in a 12V AC unit for your rig? Drop us a comment and let us know! Meanwhile, check out our troubleshooting post if your existing RV AC is not cooling well.

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