Are you having trouble locating the greatest RV autoformer? When there are so many alternatives available, this isn’t an unusual problem.

It’s almost hard to identify a top-tier one without doing extensive study beforehand.

However, by guiding you through the research process, I want to make it much simpler for you.

This work will include discussing all you’ll need to know in order to make an informed decision on your next autoformer.

I’ll go through things like deciding factors, benefits, and upkeep, among other things.

These conversations will guarantee that you become an autoformer specialist.

I’ll even examine the two models that I think are the best on the market right now.

These evaluations will show you what to expect when you begin your search.

I just want to make this whole procedure as simple as possible.

There’s no need for folks to lose their hair over purchasing an autoformer.

This article will keep your hair in its proper place.

Let’s get this procedure started right away and select an autoformer that can keep your rig’s appliances running efficiently.

This gadget will ensure that you are never again at the mercy of a low voltage system at an older RV park.

Reviews of the Best RV Autoformer

This section will provide you a summary of the two greatest RV autoformers on the market now, in my opinion.

These discussions should make it more clearer what a person should look for in these gadgets.

It will also assist you in comprehending the more in-depth subjects covered in the subsequent parts.

#1. Hughes Autoformers RV2130-SP Voltage Booster/Surge 30 Amp Autoformer

This Hughes RV autoformer is unquestionably one of the finest on the market today.

It contains a number of features that will ensure that your RV’s appliances have adequate power even in the most remote campsites.

Built-in surge protection is an excellent example.

This is a feature that ensures the device’s safety and effectiveness.

In other words, it’ll assist ensure that your computer and appliances aren’t harmed by a power spike.

You’ll also like how simple it is to set up this device.

Thanks to the provided handbook, many purchasers find it easy and uncomplicated.

Installing into your rig’s electrical system should be straightforward.

However, the Hughes autoformer installation kit is sold separately, which is inconvenient.

If you don’t want to spend the additional money on the installation kit, the device may be connected into a power pole at a campsite or park.

This is made feasible by the 6-foot power cable, which has a design that isn’t a tripping danger.

The general design of the product should also wow you.

Because this autoformer is just 21 pounds, transporting it isn’t a problem.

Moving this from storage to my RV didn’t even cause me to break a sweat.

This is no little achievement, believe me.

Its high-quality design will guarantee that this model lasts for a long period.

This product was created using the most robust materials available, ensuring that it will last for years to come.

When it comes to durability, several buyers in this Hughes autoformer’s evaluations were ecstatic.

Another enticing feature of the device was its boost function.

Even in the highest temperatures, you’ll be able to acquire the proper quantity of power from low-voltage sources.

When attempting to match this talent, poor solutions often fail miserably.

When I phoned Hughes, though, I was a little disappointed with their customer service.

I had a few queries concerning the installation procedure, and they were unhelpful.

When blogging about their experiences, a few other consumers echoed same issues.

#2. Hughes Autoformers RV220-50-SP Voltage Booster/Surge 50 Amp Autoformer

Due to its 50 amp architecture, our second alternative is more suited for bigger RVs such as a Class A motorhome.

The fact that this model has a greater amp rating isn’t the only reason a rig owner should consider it.

It has several more features that might make your life lot simpler.

One of the striking features for me was the plug-in design.

It guarantees that using the gadget is a simple process that practically anybody can do.

It’s only a question of hooking the power cable into the power pole at the RV park.

You must also ensure that it is linked to your rig.

It seems to be simple enough, right? With its built-in surge protector, the product becomes even more amazing.

When a harmful surge occurs, this function will guarantee that both the booster and your rig are protected.

It will absorb the impact rather than causing harm to the process’s more vital components.

With a Joules rating of 4800, you may anticipate this surge protection to be acceptable as well.

This should be plenty to guarantee that everything is kept secure and undamaged.

The voltage increase that this device provides is also extremely astounding.

When required, it provides a completely automated 10% voltage increase.

This makes it a useful item for anybody planning to stay in an aging RV park with unreliable power sources.

It’s one of the key reasons why choosing a Hughes model over a Franks or Powermaster autoformer is a far better decision.

These two brands never appear to be able to equal the performance of a model created by them.

Hughes autoformers have never had any concerns with durability.

This product is no exception, with its long-lasting design and high-quality materials.

Because of its build, there’s no reason to suppose this model won’t stay in your life for a long time.

Although I did have one concern with this product, and that was the price tag.

It’s a lot more than I expected or was ready to pay for an autoformer.

But if money isn’t an issue and this model meets your requirements, I don’t see why it wouldn’t be a good choice.

Buyer’s Guide to the Best RV Autoformer

Choosing an RV autoformer isn’t as easy as picking the first one that comes up on Amazon.

Knowing some crucial aspects can help you make the best decision.

This information will help a customer choose which model best suits their requirements.

As a consequence, I’ll go into great length about these crucial variables.

You’ll soon have all the information you need to make the best decision possible.

After reading the following dialogues, all worry or dissatisfaction will go.

Materials for Design

The autoformer, as you may know, is a device that assists a rig owner in stabilizing voltages from a certain power source and transferring them to devices or equipment.

Coffee makers, dishwashers, microwaves, and ovens are examples of these appliances.

The majority of these items need 1200 watts of power.

These 1200 watts may then be added to the total wattage of other devices like as converters, entertainment systems, and refrigerators.

The overall power is generally a bit more than 3000 watts.

Your rig’s maximum power output will normally be 3000 watts, but with a competent autoformer, this may be increased to 3600 watts.

The only method to get a top-tier autoformer is to make sure your designs are comprised of high-quality materials.

However, some companies strive to save money by using low-quality materials in their designs.

However, you should stay away from these types to avoid problems like power spikes.

After all, even a little surge may create serious difficulties for your rig and put everyone on board in risk.

Reviewing other people’s experiences with the item is an excellent approach to explore these materials.

If these consumers come across these problems, they will not hesitate to bring them up.

I’d also recommend making sure your autoformer is tough enough to withstand outside circumstances.

In the product description, look for adjectives like waterproof or heavy-duty to verify the product is top-tier.

It’s the only way to ensure that these gadgets are a long-term rather than a short-term investment.

Rating in Joules

One of the most important considerations when purchasing an RV autoformer is the device’s Joules rating.

It will inform a customer of the amount of surge suppression or protection the gadget will supply a rig.

I’d recommend opting for a device with a greater Joules rating, since this will prevent overheating.

Overheating may harm both the autoformer and the appliances in your rig if left unchecked.

As a result, do the wise thing and get an autoformer with a higher Joules rating to avoid this from occurring in the first place.

Amplifier Rating

An autoformer is worthless unless it has at least some energy going through it.

In other words, without the proper quantity of amps, it will not function properly.

As a consequence, before selecting an option, please verify the amp rating to ensure it is appropriate for your setup.

This whole procedure will be a waste of time if you don’t do so.

This is not what you or I want to happen.

UL Approval

It’s a good idea for every buyer to double-check that their autoformers are UL approved.

This feature indicates that you’ve purchased a competent device that will safeguard your system against power spikes.

As a result, it seems to be something that a decent autoformer would need.

It’s also a hint that the autoformer you’ve picked will be long-lasting and useful.

As a consequence, you won’t have to purchase another one for a long time.

To me, this circumstance seems to be a decent bargain.

I’m sure you share my sentiments.

Installing Ease

The installation method for the product should be simple and uncomplicated.

Otherwise, the whole thing can end up being a lot more stressful than it has to be.

Before purchasing, I recommend reading the unit’s handbook to ensure you have a guide and instructions for the installation procedure.

Most of this information may be found in the product description or on the manufacturer’s website.

You may then decide whether the installation is something you’re comfortable with.

I’d also propose that first-time installers seek for a plug-and-play alternative.

These devices have a reputation for being simple to use and set up.

However, if you don’t feel confident doing these activities, it’s never a bad idea to hire a professional.

Given the tiny size of the project, these specialists will get the job done at a reasonable price.


You’ll also want to look for anything with a lightweight design.

This feature will make it simple to move the device throughout the installation and storage operations.

You should also ensure that this design is small while yet being sturdy enough to handle outside and weather conditions.

Because they’re continuously moving things, many rig owners believe it’s critical to make sure these goods aren’t too heavy.

These gadgets acquire a lot of weight to place within your rig if they don’t have a lightweight design.


The cost of these gadgets will vary depending on the model.

It’s for this reason that many consumers find it helpful to construct a budget to assist them cope with the overwhelming amount of choices available.

However, it’s critical to keep these budgets under check.

How can a buyer go about doing this? In your ideal model, you must account for every critical characteristic.

For example, a rig owner who desires a model with a greater Joules rating must be aware that these alternatives will be more expensive.

This approach becomes much more doable if you have a reasonable budget.

It will narrow down your choices to to those that are capable of satisfying your requirements.

You won’t have to sift through a plethora of options any more.

However, if your budget is too limited, the best selection may seem to be a dangerous model.

It’s much preferable to invest a little more to guarantee that your new item can perform its work securely and without causing any significant problems.


Any remaining queries not addressed in the purchase guide will be answered in our FAQ area.

A customer should have all the information required to purchase the ideal RV autoformer after reading it.

Let’s get started and tie this whole thing up with a lovely, simple bow.

What is an autoformer and how does it work?

RVs might use too much electricity from the grid at times.

This problem will limit the amount of power available to the rest of the system’s connected devices.

This might be just as destructive to devices as a power surge in a low-voltage situation.

However, RV owners may use an autoformer to secure their rigs and gadgets (auto transformer).

Although some rig owners fear autoformers will drain electricity from the park, this is not the case.

Instead, these devices will preserve the park by limiting the amount of amps required for an RV.

It may provide this clear advantage by altering the amperage use by reducing it and raising the voltage.

More significantly, while utilizing fewer amps and greater voltage, appliances tend to perform better.

It also helps that they would be using less park electricity.

However, some campsite and park owners will not let rig owners to utilize them.

This circumstance relates to the previous misunderstanding.

It’s a shame, since these technologies make your appliances considerably more efficient and safe to operate.

What is the purpose of this?

An RV autoformer’s main aim is to safeguard your electrical items and rig from voltage fluctuation damage.

Some autoformers can even detect reverse polarity and safeguard a motorhome from low and excessive voltage, open ground, and open neutral.

As a result, autoformers are an important device that can regulate the voltage supply to nearly any electronic equipment.

They may provide this critical advantage by blocking or shorting a device’s voltage supply; this prevents the power flowing into the appliance from exceeding a safe limit.

These features make it a must-have item for anybody planning on camping in a campsite.

The electrical systems at these parks, you see, are often unreliable.

At older RV parks, this is virtually a given.
It’s fairly unusual to come across utility poles joined by a

As a consequence, a problem with a trailer a few sites down might have a significant effect on other RVs linked to the same system.

It’s also worth noting that when individuals start turning off and on their own gadgets, the available power might vary.

For these reasons, it’s evident that an autoformer might be a valuable tool for park RVs.

Otherwise, you may not have enough electricity to securely operate your rig’s electrical gear.

The benefits of employing an RV autoformer are many.

Many RV owners despise having to replace broken RV equipment.

After all, purchasing new appliances may be rather costly.

However, this may be readily prevented by investing in a reliable piece of equipment that can regulate electrical flow inside these devices.

I’m referring to an autoformer, of course.

However, many RV owners are unaware that an autoformer is required to assure the maximum functioning of their rig’s appliances.

As a result, I believed it would be in everyone’s best interest to go through some of the benefits of utilizing these devices:

1. Prevents overworking or overloading of appliances. As you can see, when the voltage is low, these gadgets have to work harder. The amperage will rise as a result of this condition, resulting in a malfunction. By automatically raising low voltage going into your appliances, autoformers will prevent this from happening.

2. Allows RVers to use their more contemporary vehicles in older campsites that haven’t upgraded their systems in years.

3. These devices will safeguard your RVs against phase and polarity reversals, which are common as a result of poor power output installations.

4. Surge protectors will be included into certain versions to prevent a power overload.

Aside from these advantages, it’s important to note that selecting the correct one might be difficult.

This challenge arises from the fact that brands create new models every year.

I’d advise anybody interested in purchasing one to think about both the price and the brand before making a final decision.

It’s also a good idea to look into each model’s performance from the experiences of previous customers.

Overall, these gadgets are designed to provide rig owners peace of mind that their equipment will operate securely.

These autoformers will get the job done whether you’re connecting into a camping pedestal or using them at home.

How do I set it up and utilize it?

During the installation procedure, autoformers are not an electrical gadget that a rig owner should take lightly.

You should proceed with caution and attention to ensure that everything happens as planned.

If you’re unfamiliar with these gadgets, it’s a good idea to seek advice from a professional.

This recommendation is particularly important for hardwired installations.

However, if you’re confident and have prior knowledge, the following steps should guide you through setting up a plug-style portable autoformer with ease:

1. Place the autoformer on the ground with the handle pointing up.

2. Connect the device’s cable to the electrical post in your RV.

3.Connect the cable from the rig to your autoformer.

4. If you’re going to use an extension cable, connect it to the campground’s post first, then connect your autoformer to it, then connect the rig to the autoformer.

However, keep in mind that these sorts of jobs should not be taken lightly.

I’d also recommend that you make sure your new autoformer is well ventilated.

This will prevent it from overheating and causing serious problems.

After that, you may use the gadget as it was designed.

Finally, don’t try to change your autoformer.

You’ll almost certainly jeopardize the efficiency of your rig’s appliances, as well as everyone’s safety within.

It’s not worth the potential advantages of the adjustment.

What is the difference between an autoformer and a transformer?

An autoformer and a transformer have one fundamental difference: the former has one winding, while the later has two: a secondary and primary.

Because of this, the voltage adjustment in an autoformer is generally less than that of a transformer.

As a consequence, an autoformer will not be able to lower excessive voltage.

A built-in surge protector, such as the two solutions in our product review section, would be required in this case.

It’s why the top-tier devices are designed to do double duty as a surge protector and an autoformer.

Do you have any suggestions for care and upkeep?

Cleaning an autoformer is more difficult than most people assume.

To guarantee that nothing goes wrong throughout the procedure, I suggest following these guidelines:

1. Before cleaning, make sure all other electrical connections are disconnected from their power source. This approach will prevent any power surges from harming the gadgets on your rig. After you’ve taken these steps, you may proceed to plug in whichever device you’ll need throughout the cleaning procedure.

2. Although it may seem obvious, do not use a moist cloth. Water and electricity are seldom a good combination, and this circumstance is no exception. In fact, if you suspect your autoformer is filthy, the first thing you should do is unplug it from the power supply.

3. If you feel anything is amiss with your autoformer, call a professional immediately. It will ensure that the unit does not sustain any additional damage, necessitating the purchase of a new one.

4. After you’ve finished using the autoformer, store it somewhere that isn’t too humid. Anyone that has a model that isn’t weather resistant or weatherproof will need this.


Finding the greatest RV autoformer shouldn’t be difficult after reading this post.

All you have to do now is apply everything you’ve learnt so far to your search.

From there, the best option should become clear and obvious.

One of the selections in our product review area could be the ideal solution for you!

Even if it isn’t, these conversations should’ve served as a roadmap for locating the ideal option.

During your search, though, a query or two may arise.

If this happens, please let us know in the comments area.

I’ll do my best to respond to your queries as quickly as possible.

Thank you for taking the time to read this!

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Written by Bob Matsuoka
Bob Matsuoka is a blogger and founder of RVing Beginner blog. He has been blogging for over five years, writing about his own family’s RV adventures, tips for people who are interested in buying an RV or taking their family on an adventure by RV.