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Best RV battery charger

Last Updated: 30.09.22

What are the best RV battery chargers in 2022?


If you don’t have the time or the patience to browse through countless RV battery chargers reviews, but you want to know where to find the right one for your needs, then read our reviews and recommendations below. We’ve carefully researched this topic to bring you the most comfortable way of finding the best RV battery charger. Our findings show that the first product to consider would be the Battery Tender Plus 021-0218, due to its many useful functions. It is temperature compensated to ensure optimum charge voltage according to the ambient conditions. Also, it automatically switches from full charge to float charging mode, making the process simple for the customer. Another aspect worth considering is that it loads as fast or faster than a triple-A charger. Should this item be unavailable, we recommend you check out the Battery Tender 022-0165-DL-WH instead.



Comparison Table


The Good
The Bad



A short buying guide


If you’re in the market for a good RV battery charger but you’re not sure what the right characteristics to look for would be, then perhaps reading our guide could shed some light on this topic. We know how you can find it somewhat complicated, especially if you’re not an expert when it comes to this type of device.



It’s important when choosing a battery charger to make sure that it is suitable for the type of batteries that you need to charge or that you use regularly.  Not only that, but it would be helpful if it were compatible with other models as well, so you can cover future circumstances, too.

Most types of batteries fall under one of the following categories: Lead Acid Batteries Flooded, Absorbed Glass Mat or Gel Cell. If the product you’ve got your eyes set on can be used for all these options, then you’re probably covered as far as adaptability goes.




Battery chargers are exposed to all sorts of hazards, so it would help extend their lifespan if they are protected against certain malfunctions. For example, a short circuit is one of the leading problems with these items. However, there are devices wired in a way so that this risk is reduced to a minimum.

Another usual problem would be overheating, but some models switch automatically from full charge to float charging mode to avoid wasting energy. Also, being temperature compensated helps with achieving the optimum charge voltage according to the temperature of your surroundings.

Other issues such as reversed battery connection are dealt with by specific manufacturers, and we recommend that you keep an eye out for chargers that have been protected against this type of damage.


Other aspects


Most items work on 12 volts/1.25 amps. It would be helpful if you could look for packages that contain other additional accessories, like a quick connect harness for areas that are harder to reach.

The overall speed of the charging process varies quite a lot, but if that’s a priority to you, then pay extra attention to this detail when you choose a device.

Also, buying an item that uses light signals to let you know whether the battery is charged or not would save a lot of energy and prevent overcharging.

If you want to make sure you’re protected against any potential damage that might ensue, you can opt for a product that has a warranty offered by the manufacturer, so it can be replaced if needed.



Our top picks



When looking for an RV battery charger for sale, you can easily get distracted by the many offers provided by various manufacturers. Getting through loads of advertising techniques and finding the item that’s right for you can be pretty tricky, so we narrowed it down to a list of our top alternatives.



Battery Tender Plus 021-0218 


This is an alternative that provides the user with many useful features, among which we could count the fact that it automatically switches from full charge to float charging mode, avoiding energy waste.

What’s also worth considering is that it charges as fast or maybe even faster than a triple-A model. Reverse-polarity protection is applied to make sure that the customer isn’t accidentally hurt while using this device.

It is designed to fully charge a battery and maintain it at proper storage voltage. It doesn’t have any damaging effects caused by trickle chargers. It is temperature compensated to make sure that the optimum voltage is reached according to the temperature of the environment.

A quick connect harness for areas that are harder to reach is also included in the packaging. This device works at 1.25 amps and will charge faster than many other options available in the same price range.


Buy from




Battery Tender 022-0165-DL-WH 


A two-color LED light indicates the state of the charger. This way it is immediately visible to the user, and it’s simple to read for anyone. This model works with two independent charging stations, each of them providing 12 volts/1.25 amps.

It is also temperature compensated, to make sure that the optimum charge voltage is reached according to the temperature of the surrounding environment.

The complete three-step charging program, containing initialization, bulk charge and float mode, allows the user to optimize battery life without overcharging it and thus wasting energy.

This device is perfect for all absorbed glass mat items, sealed maintenance free and flooded batteries. It is also backed by a two-year warranty from the manufacturer, so you won’t have to worry about any potential damage that could ensue as a result of the charging process or other external factors.  


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Samlex America Solar SEC-1280UL 


Another great option would be this model from Samlex America. It operates using switch mode technology to obtain high efficiency, all packed into the form of a lightweight design that works quietly.

It can be used for all Lead Acid Batteries Flooded, AGM or Gel Cell models, making it very adaptable. It is protected against many factors, including short circuit, overload, reverse battery connection and overheating.

A temperature sensor is included to prevent undercharging or overcharging if the temperature happens to vary extensively. Using a DIP switch setting, you can convert this appliance to a two-stage algorithm and charge batteries connected to a DC load.

You can also use this unit as a DC power supply if needed.

This device is protected by a two-year warranty offered by the manufacturer so that you don’t need to worry about any damage that might occur.


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