Best RV Power Converter Charger in 2022 | Comparison, Reviews & Buyer’s Guide

If you are a newcomer in RV driving or have simply never dealt with the electrical system in your vehicle, then you’ve hardly heard about converter chargers before. However, this is the highly important element of any RV power supply system that, in fact, is designed as the 2-in-1 device for converting voltage from AC to DC and charging your RV battery bank. So let’s proceed with this topic to give you a better understanding of this RV electric equipment, principles of work, functionality and benefits of its use.

What is the best RV converter charger? The advanced units should manage higher power loads without hassle due to an increased output capacity. They are state-of-the-art power source solutions, delivering clean, reliable DC power for RV electrical systems and appliances, with no need in filtering from a battery. Besides, they commonly feature smart multi stage charging technology, adjustable power modes and sophisticated protection system which allow for safe and efficient charging of RV batteries and on board appliances. With all their benefits and comprehensive technologies, the advanced converter chargers come in a compact and lightweight design for greater convenience in installation and use.

RV Power Converter Chargers Compared

What do you need to know about RV converter chargers and power centers?

A RV converter charger, like its name says, converts standard 120V AC into 12V DC power needed to recharge the RV battery from any external shore power supply (AC power) like RV campground pedestals or a generator. Besides, these units distribute converted DC power to other RV accessories like lightning systems, cooling fans, thermostats, or other multiple DC appliances. Thus, having an advanced converter charger in your RV, you can have total control over multiple energy supply processes with the help of a single device.

The modern gears are designed to meet various needs of the potential customers. In this regard we can define several types of RV converter chargers that have similar principles of operation but differ in capacity, functionality and installation methods. These include high-output, multistage, deck mount converter chargers and power centers.

High-output. The delivered amperage of these units is commonly higher than that of the conventional RV converter chargers and it may reach up to 80 Amp. Such range would be suitable for those with high power consumption demands during RV trips. In particular, high-output units can handle large power loads and charge several RV batteries simultaneously in a shorter time. For instance, the Arterra WFCO WF-9865 WF-9800 Series Deck Mount Converter Charger is capable of providing the impressive clean power output of 65 Amp DC.

Multistage. Unlike single-stage converter chargers these units can charge batteries much faster. In general, they are considered to be an upgraded version of the conventional single-stage units, as they ensure more effective and safe charging of the battery bank with an optimum amount of current. As a result, the lifetime of an RV battery will be considerably increased. Besides, multistage converter chargers demonstrate greater versatility in use with their suitability for different types of batteries including lithium, AGM and gel options.

These units can be offered with up to 4 charging stages. In particular, battery charging can be in a “bulk” or quick charging mode; absorption mode with a nominal rate of charging and gradually juicing of the battery; float/trickle mode with trickle current maintaining the battery at full charge on a constant basis; and equalize mode which is specifically used for lithium batteries supporting their initial capacity. The Progressive Dynamics PD9260CV Inteli-Power 9200 Converter with its Charge Wizard technology features smart battery charging controlled by an integrated microprocessor. The latter can monitor RV battery voltage and apply one of four recharging modes.

What is the difference between an RV power converter and inverter?

The principle of operation of RV power inverter is similar to RV converter, both of them transform voltage but in different directions. That is, the converter transforms 110V AC power to 12V DC power. The RV inverter converts 12V DC to 110V AC to enable various electronic devices and appliances to work. In essence, inverters are deemed as add-on accessories due to the fact that they can’t charge your vehicle’s batteries, unlike the converter chargers.

Power centers. These multifunction devices combine AC/DC distribution panels with multiple outputs and converters with multiple charge modes. Nowadays, it is the most demanded option, whenever replacement of worn RV converter chargers is needed, due to its comprehensive management of the electrical system inside your RV. Besides, power centers are compatible with all types of RV batteries, with an opportunity to be installed inside any RV type. The WFCO WF8955PECB Black 55 Amps Power Center Converter Charger is the reliable and multifunctional option with the superior features in a sleek design.

The Furrion 35 Amp All-in-One Power Center for RV is another decent model with the omnibus features including AC/DC distribution panel with multiple outputs and charge modes.

Deck-mount. This type of RV converter chargers is designed for a purpose of convenient installation. The deck mount power converters can be arranged in any position inside your vehicle, making RV design more flexible for manufacturers. In particular, you can arrange it inside the cabin and mount under any of the seats, or in any other place with power supply circuitry nearby. The WFCO WF-9855 WF-9800 Series Deck Mount Converter Charger is a great example of the compact and lightweight power converter which still has enough capacity to generate high output.

What are the key features of the decent RV power converter chargers?

Input. RV converter chargers require appropriate voltage input to work. In particular any shore power source should deliver from 110 to 130 volts. 120 volts would be preferably to ensure more efficient operation.

Output. The RV converter chargers need to deliver a direct current consistently. The output systems of the modern chargers are offered in the range of 12 to 14.4 volts or 30 to 80 Amp and fully compatible with RV setups.

Protection features. Circuit breakers and cooling variable-speed fans are important elements of RV converter chargers to protect the electrical circuit from overcurrent/overload, short circuit or overheating. The majority of high-end models also feature the automatic shutdown system, low line voltage and reverse polarity protection.

Installation. While installation of any RV converter charger will require some efforts, the specific design of some models (deck-mount) can considerably simplify the process. You should check the dimensions and design of a potential converter charger for possibility to fit the electrical system in your RV. Some hardwired models like power centers will require professional assistance in installation and set-up.

RV Power Converters | Reviews

POWERMAX 110 VOLT TO 12 VOLT DC POWER SUPPLY CONVERTER CHARGER FOR RV PM3-55

PowerMax is a privately held corporation with headquarters in Bradenton Florida. The company has offered a wide range of electric products including battery chargers, AC/DC power supplies, DC/AC inverters, generators, converters, etc., for over 15 years.

This converter charger from PowerMax turns 110V AC power to 12V DC power to charge RV batteries and/or other on-board equipment. With its advanced 3-stage smart charging and fixed single output mode with 13.0 V DC to 16.5 V DC range, the lifetime of RV batteries is considerably extended. This charging system is compatible with any battery type and delivers very clean DC power.

This unit can also be wired with other PM3 Series models or operated in parallel to reach even higher power output ranges. The current limiting design and built-in reverse polarity and thermal protection of this RV converter charger prevent it from damage in case of overload or short-circuit conditions.

Features

• Output: 55 Amp / 13.2 – 14.4V DC
• Weight (in): 7
• Dimensions (L x W x H) (in): 11 x 8 x 4

The PM3-55 model with a perfect marriage of the state-of-the-art features and high power output ranges can be considered as one the best RV converter chargers available on the current market.

POWERMAX PM3-55: Check the current price

WFCO WF-9855 WF-9800 SERIES DECK MOUNT CONVERTER CHARGER - 55 AMP

WFCO is a well-known U.S. manufacturer of automotive and RV supplies with over 40-year experience on the market. The company presents its WF-9855 compact size RV converter charger in a deck mount design to fit different RV and trailer models. This model comes with 55 Amp DC output and a rugged housing which keeps all-insulated DC connections safely arranged.

This unit also features three-stage battery charging modes, including: 13.2 VDC range “float”, 13.6 VDC range “absorption”, and a 14.4 VDC range “bulk” modes. Besides, it has the overload and short circuit protection. Another advantage of the WF-9855 model is its non interference with TV, radios, or other signals.

Features

• Output: 55 Amp / 13.2 – 14.4V DC
• Weight (in): 4.3
• Dimensions (L x W x H) (in): 11.6 x 6.5 x 4.3

The WF-9855 is the reliable and advanced power source in a compact design; thus it would be the best option for smaller RVs.

WFCO WF-9855: Check the current price

PROGRESSIVE DYNAMICS PD9260CV INTELI-POWER 9200 CONVERTER WITH CHARGE WIZARD

With the production facilities located in the United States, the Progressive Dynamics, Inc. offers a vast variety of high-quality electronic products including power converters like this PD9260CV.

This 60 Amp model is designed to deliver reliable filtered DC power to all RV 12V lighting and appliance circuits. With its built-in charge Wizard system with the microprocessor, RV battery charging takes less time. Besides, the system monitors the battery status on a constant basis, thus preventing over/under charging. The Charge Wizard automatically selects one of three charging voltages and one of four operating modes depending on the battery status.

Also, this converter charger features a comprehensive system protection against high/low voltage, overheating, electronic current limiting and reverse battery protection to ensure its durability for a long-term perspective. The variable speed smart cooling fan monitors converter temperature select the speed required. Variable speed intelligent Cooling Fan.

Features

• Output: 60 Amp / 13.6 V DC
• Weight (in): 5.8
• Dimensions (L x W x H) (in): 13 x 7 x 9

In my opinion, this RV converter charger features genuinely impressive abilities to deliver high output power to your RV electrical system and provide a rapid and safe recharging of its batteries.

PROGRESSIVE DYNAMICS PD9260CV: Check the current price

WFCO WF-8735-P BLACK 30 AMP POWER CENTER

This all-in-one unit is the last but not the least product in our top list. The WF-8735-P is a decent power supply option taking into account its ability to deliver up to 35-amp DC output or 13.2 – 14.4 V DC to support multiple onboard appliances and electronics in your RV. Additionally, it comes with an integrated AC/DC distribution system with 30 Amp main AC circuit and a total of up to five 20 Amp AC circuits. Also this model has six DC branch circuits with LED indication.

This unit also features three-stage charging which is performed in auto modes, thus contributing to the longer life of RV batteries. In particular, it can select the nominal voltage output 13.2 VDC “float”, 13.6 VDC “absorption”, and a 14.4 VDC “bulk” charge modes. The short circuit and reverse polarity protection of this power center ensures enhanced reliability. Its smart cooling fan is activated only when temperature limit is achieved and ensures almost noiseless operation.

This model also complies with FCC Class B regulations, thus guaranteeing absence of any interference with TV, radios, or other signals.

Features

• Output: 35 Amp / 13.2 – 14.4 V DC
• Weight (in): 5.5
• Dimensions (L x W x H) (in): 12.3 x 8.4 x 7.2

This multi-purpose system creates everything to support the electrical system vitality of any recreational vehicle. Besides, the WFCO WF-8735-P is one of the most compact power centers in its class making it suitable for usage in smaller RVs like camping trailers.

WFCO WF-8735-P: Check the current price

Best-Selling RV Converter Chargers | Comparison Table

FAQ

What does a RV converter do?

These units convert regular 120V AC power (when voltage is first rectified and filtered) to 12V DС power; thus, RV batteries can be also recharged with the help of such converter chargers from any AC shore power sources. Besides, multiple on-board appliances can be supported during your RV trip with the transformed power delivered by converter chargers.

How do you know if your RV converter is bad?

While RV converter chargers are considered to be quite durable equipment, they can fail with the time, depending on installed capacity of a particular model and load intensity they are exposed to. So, the clear signs of converter malfunction are as follows:

• Irregular operation of RV on-board appliances
• Interior lights are dimming immediately after being turned on
• RV batteries do not properly maintain a constant charge.

Anyway, before making any conclusion regarding the root cause of such problems, you should carry out proper inspection of each element of the RV electrical system.

What size power converter do I need for my RV?

The size of an RV converter charger should be determined by the energy consumption rate of your vehicle and its accessories. In particular, the output of the most popular models makes either 35 Amp or 55 Amp which is sufficient for covering regular power needs of any RVer. However, if you are an owner of a larger vehicle, or your power demands are permanently high during off-road trips or boondocking, you’d better consider a larger model of higher capacity.

Does my RV converter charge my battery?

The external shore power at RV parks and campgrounds is 120V AC only. A converter charger takes this AC power and converts it to DC power suitable for RV 12V DC system and charges the batteries at the same time.

By the way, if you want to escape any shore power problems, like voltage fluctuations, and to defend the electrical system of your rig, a use of a surge protector would be highly recommended. These small but reliable units can be connected between the power source and your vehicle to prevent any damage to your RV’s electrical system and appliances.

How much does it cost to replace an RV converter?

In case if the original converter charger in your RV is damaged, or you simply want to upgrade the electrical system in your vehicle, please be ready for hefty expenses. Certainly, the cost of a suitable converter charger or a power system will depend on the size of your RV and the average energy consumption rate you are dealing with. In general, you should be ready to spend approximately $200 or more for a decent advanced product.

How do I test my RV converter charger?

In order to inspect properly your converter, the following sequence should be observed:

1. Test the 120V AC terminals with the help of a voltage meter to check whether the power is supplied to your converter charger or not. The readings on the tool should make 120V AC.

2. Check the state of the RV converter cooling fan. The latter is important since it maintains the temperature of internal electrical components within the range of the working temperatures and in this way helps them to function properly.

3. Test the coach battery terminals with the voltmeter the reading of which should be approximately 14V DC. If no power is detected, there might be some malfunction with your converter charger.

4. Measure the outputs of the converter to the RV's 12V systems. If they show the admissible voltage range, but the battery charge terminals don’t, most probably the problem relates to the converter. And on the contrary, if the terminals have about 14V, and the coach battery doesn't charge, then the battery is the issue.

5. Test also the voltage of a transfer relay switch which is a kind of power conductor to the coach battery. It should be energized as soon as the RV is plugged to the external power source.

6. Also you need to test the transformer with the voltmeter. The readings should correspond to 120V AC at the input, and 14V DC at the output terminal. In case if voltage is lower than the required value, then you must find the failure cause at some point before the transformer.

Besides, don’t forget to check the condition of diodes, which regulate the current flow in an appropriate direction.

Will an RV converter work without a battery?

Yes, it will. However, you should bear in mind that the main designation of an RV converter charger is to transform AC to DC power with the simultaneous charge of the RV battery and further supply of this converted power to your vehicle. Most RV accessories and appliances will not work properly without a sound functioning of 12V DC house battery system which in its turn requires reliable and safe charge.

Should I disconnect my RV battery when plugged in?

Once again, don’t forget that RV converter chargers are designed to transform 110V AC to 12V DC power suitable for RV’s electrical system and batteries. These can be charged safely while the converter is plugged into a shore power source. Thus, there is no need to disconnect the batteries during this process. On the contrary, it is recommended to leave batteries “ON” when plugged into shore power to prevent them from draining if they are in stand-by too long.

Should I leave my RV inverter on all the time?

No, it’s better to turn your RV inverter off most of the time when it is not in use or if it is disconnected from an external power source. This can be grounded by the fact that the inverter draws a significant amount of battery power. Thus, if it is left for a long time unused, the risk of battery drain seriously increases.

Where is the power converter in my RV?

The majority of the conventional models are commonly pre-installed in recreational vehicles. They are usually arranged in a close vicinity to a control panel in your RV. If you purchase a new model, the place of its installation will be determined by the design of the unit. That is, if you have a deck mount compact converter, you can choose any position for its arrangement close to the power circuitry; thus, you get a great versatility with this model. If you’ve got an all-in-one power center with a distribution panel, you should install it into the wall with easily accessible circuit breakers and fuses, as well.

Do RVs have inverters or converters?

As I’ve mentioned before, most RVs come already equipped with a converter. These units are considered to be an essential part of RV’s electrical system. This equipment helps to supply and transform the shore AC power to DC power suitable for RV battery charging.

RV inverters are usually purchased additionally to support AC appliances in your motorhome. So, they are used as add-on units for enhanced convenience of RV lifestyle. However, you should remember that the inverter uses the battery power. So, the status of the latter must be constantly monitored to prevent it from depletion.