Just like other batteries used in the electrical system, your RV battery can get discharged when not in use. Unfortunately, if it happens while you’re still at your favorite campsite, you could end up having the worst camping experience. Luckily, you can avoid all this by investing in the best RV battery charger.
Unlike standard battery chargers, an RV battery charger is capable of charging even dead batteries as low as 0.0V. Some high-end units will even automatically detect bad batteries and, at the same time, extend your battery’s lifespan.
However, some deliver more charging voltage and current than others, which can make it hard to choose the best charger. But don’t worry because we have come up with a list of the best-rated RV battery chargers plus a buying guide.
List of Best RV Battery Chargers:
11 Best Battery Charger for RV
Without further ado, let’s dive right into our favorite RV battery charging systems built to provide you with reliable performance for many years.
1. NOCO GENIUS GEN5X2, 12V Onboard Battery Charger
- Simplified mounting system for easy installation
- The fully-automatic charge for smart and precision charging
- Delivers 5-amps and 10-amps maximum charging current on 12V batteries
- Built-in anti-vibration backing to reduce noise, vibration, and shock
- Automatically detects high voltage, bad battery, and reverse polarity
- Ultra-compact and durable design
Topping our list of the best RV battery chargers is the NOCO GENIUS Gen5x2, designed to provide you with more power and enhanced performance. It is our overall best charger because first, you can use it to charge up to two 12V batteries rated 5-amps and 10-amps.
And secondly, it can charge dead batteries as low as 1-volt. You can also use its built-in all-new force mode to charge dead batteries that are down to zero manually. The best part is that it is integrated with a thermal sensor to reduce the chances of either under-charging or overcharging.
What’s more? The charger comes in a fully-sealed housing that is IP68 waterproof rated. Therefore, you can rest assured it can withstand up to 1.5m water depths and other elements. For your peace of mind, it also comes with a 3-year warranty and is certified to UL 1236, ISO 8846, and 33 CFR 183.410 standards. So, you don’t have to worry about its safety.
This RV battery maintainer comes with various charging modes for ease of use. This includes a 12V repair mode for repairing old, damaged, sulfated, and idle batteries. It also includes 12V mode, 12V Lithium, force mode, and 12V AGM. Best of all, it boasts an automatic voltage detection that will detect if your batteries are down to 1-volt.
2. Schumacher SC1280 Fully Automatic Battery Charger
- LED display with simple button controls and modes for ease of use
- Compatible with standard deep-cycle, Gel, and AGM batteries
- Outputs 12V maximum voltage and up to 15Amp rapid charge
- Easy to install with start/stop button for instant charging
- Charges dead batteries as low as 0.0V
- Controlled by a microprocessor for automatic detection of amperage rate
In the second position, we’ve got this Schumacher SC1280 Fully Automatic Battery charger that boasts auto voltage detection. Since it is designed to charge on 6V/12V battery systems, the charger is built to automatically detect if your battery falls under this voltage or not.
Another thing you will love about this 12 volt RV battery charger is its Smart Charging feature. Simply put, the charger is equipped with a microprocessor designed to adjust the amperage rate to suit different charging settings automatically. In addition, it employs multi-stage charging for enhanced precision, safety, and longer battery life.
Additionally, the charger is built to deliver up to 15 Amps rapid charge coupled with 3Amps to maintain your RV battery. So, you can rest assured of reliable power. For added safety and protection of both your RV battery and charger, this unit is fitted with a reverse hook-up feature. This feature offers protection against reverse polarity, which could lead to short-circuiting or shocks.
Something else that stands out about this charger is that it is built to meet the highest industry standards with its Schu Eco-Energy. Even better, it is DOE compliant. The charger also comes with a 2-year warranty for your peace of mind, although it is not clear whether it is waterproof or not.
3. Battery Tender Plus 12V Battery Charger and Maintainer
- UL listed for safe use along with CE certification
- Offers reliable performance that is backed by a 10-year warranty
- Quick disconnect harness for better control
- Includes ring terminals and alligator clips for ease of installation
- 4-step charging program for optimized battery power
- Two-color LED lights for monitoring charge levels
Up next, we have this RV 12 volt battery charger that is not only fully automatic but also easy to use. For starters, it features a solid two-color LED light that lets you know the state of your battery’s charge. This way, if the battery voltage trickles down too low, charging begins since the charger cannot charge dead batteries.
The best part about this product is its 4-step charging program that comprises various charging modes for increased battery life. This includes the initialization mode for checking the battery level, bulk charge for increasing the charge, and absorption mode for slowing down the charging. Lastly, there is a float mode to help keep your battery charged without the risk of overcharging.
Designed to charge 12V batteries, including lead-acid, gel cell, AGM, and flooded batteries, this charger delivers 1.25Amp of charge. While this is on the lower side compared to its competitors, it still does a good job of charging and maintaining RV batteries. Besides, it is easy to use, install and boasts a low-maintenance design. On the flip side, the charger is not waterproof, so you have to protect it from all elements.
In terms of safety and protection, this RV trickle charger employs a reverse polarity feature. This helps ensure that no power is discharged if you have not correctly attached the connections. It also boasts a spark-proof design to prevent any charge from being sent until the voltage has been detected. This feature works similarly to automatic voltage detection. However, it does not fully support smart charging.
4. CTEK – 40-206 MXS Fully Automatic 4.3amp Battery Charger
- Covered by a 5-year limited warranty
- Outputs up to 4.3A charging current and 14.4/14.7/15.8V of voltage
- Dedicated AGM function for setting float and absorption voltages
- Provides a unique 8-step approach to RV battery care
- Charges 12V lead-acid batteries up to 110A
- Restores extremely discharged and stratified batteries
CTEK is a very popular brand known for its smart and innovative products. And this award-winning 12V battery charger is one of their best products, and for good reasons. First and foremost, it employs a fully automatic microprocessor for smart charging along with a built-in charge voltage compensation. This helps you enjoy efficient charging even in extreme weather conditions.
Perhaps the best feature of this RV lithium battery charger is its advanced charging modes. These include AGM mode for charging AGM lead-acid batteries, connect and forget function, and patented desulphation mode. Also included is a reconditioning mode designed to restore deeply discharged batteries as low as 2.0V. So, you cannot use it to charge completely dead batteries.
You will also be pleased to know that this AGM deep cycle battery charger is both splash and dustproof with an IP65 rating. However, it’s not waterproof but just water-resistant. The charger is also reverse polarity protected, short circuit proof, and will not overcharge or undercharge for added protection. Even so, it does not come with any safety certifications.
Similar to other battery chargers in this review, this product is also easy to use and install. This is thanks to its simple plug-and-play design. Besides, it comes with all the necessary accessories you need for a complete installation. You just choose your preferred program and mode and leave it to do its job.
5. Ampeak 6V 12V Smart Battery Charger
- Charges and maintains all types of 6V/12V lead-acid batteries
- UL certified and backed by an 18-month warranty
- Made from sturdy and durable ABS shell but not waterproof
- 7-stage charge process for 12V battery and 3-stage process for 6V batteries
- Automatic temperature protection system for prolonged battery life
- 6V/12V 2A trickle charge for charging and maintaining small batteries
Here is yet another best battery charger for RV that stands out for its intelligent reconditioning function. This function simply detects whether your 12V RV battery needs reconditioning and then adopts up to 15.8V of voltage to restore it. However, it won’t charge a dead or frozen battery.
Similar to other premium products in this guide, this multi stage rv battery charger also adopts smart charging. Basically, it utilizes a fully automatic microprocessor designed to detect your battery’s voltage and allows you to choose the charging rate. It will also automatically identify if your battery needs 6V or 12V charging.
But you know what the best part is? The charger is designed to deliver up to 8 Amps of rapid charge and 2 Amps of slow charge for 12V batteries. But for 6V batteries, it will provide you with only 2 Amps of slow charge. And for protection against overheating, overcharge, short-circuit, over-voltage, and reverse polarity, the charger boasts a multilevel protection guard.
For the best RV charging experience, this charger features various modes, including bulk charge, float mode, soft start, and absorption. You will also find it easy to use and even install. Just plug it in and select your preferred charging rate and current.
6. ECO-WORTHY 12 Volt 10 Watt Solar Battery Charger
- Perfect for all types of battery maintenance with a voltage of 12V
- The charger comes with a 4.75 ft extension cord
- Includes a cigarette lighter and alligator clip adapter for convenient charging
- It comes with a solar power panel with suction cups for installing it
- Built-in blocking diode prevents reverse discharge
- Uses SAE connector to prevent short circuit
This is one of the best RV battery trickle charger systems out there designed to help you extend your battery life. It comes with high-quality clips for superior protection against short circuits. In addition to this, the charger employs an integrated blocking diode to prevent reverse discharge.
Suitable for charging 12V battery systems, this charger is rated 10W of maximum power output. As such, you should use it for maintaining your battery to protect it from sulphation rather than for full charging. Since it’s best suited as a trickle charger, it delivers only 0.56Amps of charging current. Therefore, you should not expect it to charge dead batteries.
Also worth mentioning is that this product boasts a plug-and-play operation for ease of use and installation. You can choose to connect it directly to your RV battery or your car’s cig socket. Besides, it comes with everything you might need for a complete installation, including an alligator clip adapter and SAE connector.
You will also be pleased to know that a one-year warranty covers this RV trickle charger against manufacturing defects. Although the manufacturer does not indicate the rating, the charger is also waterproof and dustproof. On the flip side, though, the charger does not support smart charging and automatic voltage detection. In addition, it is not UL-certified.
7. Sunway Solar Car Battery Trickle Charger & Maintainer
- Quickly connects and disconnects to your RV battery
- Reverse charging and overcharge protection
- Generates up to 8.5W of power for trickle charging your battery
- Solar panel mounts easily to the windshield via suction cups
- Backed by a one-year warranty with excellent customer service
- Best for 12V battery systems with a 50Ah capacity or more
Looking for a simple RV battery maintainer that is best for slow charging and maintaining your RV’s battery charge? If yes, this solar-powered charger is an excellent choice as it is rated up to 8.5W of power output. And the best part is that it won’t overcharge your 12V battery.
As for the solar panel, it is constructed from monocrystalline cells to ensure maximum charging efficiency. The panel is also covered with ABS plastic and PV glass to ensure long-lasting durability. And according to the manufacturer, this charger is waterproof. Nevertheless, you should not submerge it in water.
For added protection, the charger is also engineered with a built-in diode. This feature simply helps protect your batteries from reverse charging. Best of all, it includes discharge protection. Also included is an LED charge indicator to let you know whether it’s charging or not. However, it does not employ smart charging or automatic voltage detection.
Something else that you will love about this product is its ease of use and installation. This is because the charger boasts a plug-and-play operation. You just mount the solar panel to the dash or windshield of your RV. But because this charger is designed for maintaining battery charge, you cannot use it to charge your dead batteries.
8. TowerTop Battery Charger
- Advanced LCD display with an intuitive interface for ease of use
- Delivers 2/10/25Amp to allow trickle charge and fast charging
- Housed in a durable ABS flame-retardant shell with an ergonomic handle
- Compatible with 12V lead-acid batteries like AGM, deep-cycle, STD, and GEL
- Automatic voltage detection with multi-safety protection features
- Offers real-time 8-stage charging for increased battery power optimization
With a maximum power output of 25 Amps, this RV battery charging system from the TowerTop brand boasts up to 84% charging efficiency. As a result, it will automatically detect and charge dead RV batteries as low as 1 volt. It will also auto-detect, repair, and recondition deeply sulfated batteries by adopting 15.8V of the maximum voltage.
This charger, which has a smart charging function, uses a smart chip-controlled CPU to provide the optimum charging performance. For instance, when the voltage drops, it will auto-awake and then pulse compensate. And when it is fully charged, it will simply auto-stop to prevent overcharge.
Another thing that makes this charger the best battery charger for RV is its 8-stage charging functions. Basically, you get an engine start aid, winter mode, bulk charging, float charging, absorption, and battery reconditioning modes. Therefore, you won’t have to deal with issues like reverse polarity, over-voltage, over-discharge, spark, overheating, short circuit, and over-current.
While this charger is not waterproof, it is weatherproof for enhanced durability. And the good thing is that a 12-month warranty covers it. On top of that, it is certified by ETL/BC/FCC for safety. Installing the charger is also quite simple since it comes with larger openings for easy side-post connections.
9. GOOLOO S10 6V/12V Smart Battery Charger
- Multiple protection features and charging modes for superior safety during use
- 10-stage charging system for optimal battery charging and performance
- Delivers 10A maximum charging current and 5V-14V of maximum voltage
- Works as a battery charger, maintainer, and memory keeper
- All-weather construction with IP65 waterproof rating
- Compatible with some 12V DC devices using an adapter
Here comes another fully automatic multi stage RV battery charger that works with all 6V and 12V lead-acid battery systems. Unlike most chargers that adopt up to 8-stage charging, this product offers you a 10-stage automatic system. Some of the modes included are an auto-adjust charging current, AGM mode, maintenance, winter charging, and auto-repair.
This product also provides you with multiple protection features to help extend the life of your RV battery. Simply put, it will protect your batteries from short-circuit, overcharge, reverse connection, low and high voltage, over-current, and over-temperature. Best of all, the charger is integrated with an auto-memory sensor. This ensures it goes back to the last charge mode once you reconnect it.
This dustproof and IP65 waterproof charger is designed to be an all-weather charger for improved safety and longevity. While it does not come with any certifications, you will be pleased to know that an 18-month warranty backs it. In addition, the charger comes fitted with an easy-to-use LCD display showcasing your charging mode, battery levels, and even charging voltage.
More importantly, this AGM deep cycle battery charger is quite easy to install. You just attach the SAE connectors and clips together, plug the charger into a socket, and then connect your battery with the clips. And finally, choose your preferred mode.
10. Stanley 15A Battery Charger
- Compatible with 12V AGM, WET, or GEL cell batteries
- Automatically detects and compensates for lower voltages
- Easy-to-use digital LCD screen for displaying charging and battery status
- 3/15/40A charging current for use as a charger, maintainer, and jump starter
- Reconditions batteries with sulfate build-up for improved charging
- Fully automatic with reverse polarity protection
The Stanley 15A Battery Charger stands out as the best 12 volt RV battery charger for jump-starting your RV. Designed to deliver up to 15-amp charging current, this charge features a 40-amp patented engine start function. You can, therefore, jump-start your motorhome in just 90 seconds. Best of all, the charger generates 3/15-amps; hence you can use it as a battery charger and maintainer.
For the best smart charging performance, the charger utilizes a fully-automatic microprocessor. Therefore, they are automatic for most functions like adjusting from rapid to trickle charge and choosing the charge rate. Consequently, you will find this product pretty easy to use.
Another great feature of this charger is its 3-stage charging system. Basically, this works by automatically switching from fast charge to top-off and trickle charge. On top of that, it comes with multiple control modes, including battery reconditioning and patented alternator check to extend your battery’s life.
Furthermore, this 3 stage battery charger for RV employs reverse polarity protection. It is also ETL certified for superior performance and safety and CEC (California Energy Commission) compliance. Even better, it is backed by a one-year warranty. However, the charger is not waterproof and will not charge completely dead batteries.
11. BatteryMINDer 12V 2/4/8 AMP Charger Model 128CEC1
- IP65 waterproof rated and dust-tight for superior protection
- 12V charging voltage and 2/4/8 AMP charging current
- Includes all the necessary connectors, fuses, and clips for ease of installation
- Built-in auto temperature sensor for adjusting charge rate
- Push-button selection function for ease of use
- Won’t overcharge or discharge even in extreme temperature conditions
Our last pick for the best multi stage RV battery charger is coming from a trusted brand called BatteryMINDer. It is among our favorite choices because it allows you to maintain up to 8 batteries at the same time. All you need are Y-connectors which are sold separately. On top of that, it adopts 7-stages of charging designed to ensure maximum charging performance.
Similar to other products in this guide, this charger is best for charging 12V battery systems. But what makes it different from its competitors is its 2/4/8- amps of charge current. You can use the 2-amp setting for a trickle charge, the 4-amp setting if charging multiple batteries, and the 8-amp for fast charging.
What’s more? The charger incorporates various modes, including bad cell detection, auto-restart, eco-mode with high-efficiency and low power consumption, plus auto-shutdown mode. Thanks to its smart charging characteristic, this charger can also recover deeply discharged batteries but not dead ones.
Also worth mentioning is that this RV 12 volt battery charger comes with multiple protection features. This is to ensure the durability of your battery. These features include short-circuit, reverse polarity protection, spark, and thermal runaway protection. And for your added peace of mind, the charger is California CEC approved and backed by a 5-year warranty.
How to Buy the Best RV Battery Charger?
The best RV battery charger systems come in different styles, capacities, sizes, and prices too. However, to get the best out of your money, there are various factors that you must consider before making any purchase.
Battery charging voltage and current
The first thing to consider is the voltage of your battery charger and that of your RV battery. This is because if both voltages don’t match, the charger won’t work.
The majority of RV batteries and chargers operate at a 12V voltage. Some charger versions, on the other hand, can work with both 6V and 12V battery systems. As a result, you should double-check the voltage of your battery and the charger.
More importantly, you will need to consider the charger’s charging current, which is measured in amps. More amps mean the charger will charge your RV battery faster.
But overall, we recommend choosing a charger with more than one-amp settings. Such a product will allow you to charge, maintain, and even restore your dead batteries using different charging currents.
Protection and safety
The last thing you want is to buy a charger only for it to damage your RV battery because of overcharging. So, to avoid this, you must consider if the charger comes with protection features like overcharge, overvoltage, short circuit, and reverse charging. Some models come with more protection features than others, so be sure to look out for this.
When it comes to the safety of the charger, you should look out for things like certifications. Generally, different chargers have different certifications such as UL, ISO, CFR, DOE, ETL, and CEC. However, not every product out there has safety certifications.
Single or multi-stage charging
RV battery chargers adopt different stages of charging processes for increased battery performance and longer lifespan. Some models only employ a single stage, while others are up to 10 stages. Of course, the more stages a charger adopts during charging, the better.
That said, we recommended looking out for chargers that can auto-detect voltage, recondition discharged batteries, and even auto-adjust charging current. On the flip side, though, chargers with more charging modes can be a little pricier than their counterparts.
You certainly don’t want to invest in a battery charger that will serve you just a couple of months. Therefore, you must consider how durable the charger is. Of course, the durability of the charger will depend on what kind of materials it is made of. Overall, the best chargers for RV batteries are mostly made of sturdy ABS plastic materials.
In terms of durability, you will also need to consider if the charger is waterproof or not. A charger with at least an IP65 waterproof rating may last longer compared to one that is not. You must double-check that the charger is completely waterproof because some products are water-resistant and cannot be submerged in water. And for enhanced durability, you can consider getting a dustproof charger.
Ease of use and installation
RV battery chargers are designed to be both easy to use and install. However, if you want a very easy charger to use, we recommend you choose a fully-automatic one. A fully-automatic charger is designed to auto-adjust its different settings, thereby ensuring precise charging.
But if you are well versed with RV battery chargers, you can choose one that requires you to adjust the control settings manually.
When it comes to installation, look out for units that support plug-and-play operation. These are really easy to install. More importantly, make sure the charger system comes with all the mounting hardware.
Another equally important factor to consider is the warranty. A charger that is covered by a warranty is likely to provide you with reliable charging performance compared to one with no warranty.
So, for your peace of mind, we recommend getting a model that comes with at least a one-year warranty. But the longer the warranty, the better.
Can it charge dead batteries?
Having a battery charger that can charge dead batteries is essential because your battery might drain completely when you least expect it. However, not all RV battery chargers offer you this feature.
On the other hand, some chargers will only charge dead batteries as low as 1V or 2V. Others like the NOCO GENIUS GEN5X2 have a force mode that enables you to charge completely dead batteries manually.
Everything in your RV, including battery chargers, tends to be exposed to vibrations and shocks as you move between locations. This might either interrupt or disrupt the charging process. The vibrations could even damage your charger if they are intense.
Unfortunately, some chargers simply don’t have any means to reduce vibrations. So, if you plan to use your RV battery charger on the go, you should consider a model with built-in anti-vibration backing.
Types of RV Battery Chargers
If you are new to RV camping, you probably don’t have an idea about the different types of RV battery chargers available. So, in this section, we are going to discuss what options you should consider.
1. Smart converter charger
An RV converter charger is designed to convert 110/120-volt shore power into 12-volt DC power. It converts the power while at the same charging your RV’s batteries. This means that your RV battery will end up storing the power when it’s plugged in.
One of the primary advantages of this type of charge is its intuitive battery charging stages. You will find either a single-stage or multistage converter charger. Multi-stage chargers have charging stages such as initialization, bulk, absorption, float, and reconditioning.
2. Inverter charger
This type of battery charger is commonly used in applications where reliable battery backup is necessary. Basically, an inverter charger works as a battery charger to convert incoming AC power into DC power. As a result, it can charge your RV battery.
The main advantage of an inverter charger is its ability to charge your RV battery bank through a grid system. This is even though it is aimed to power off-grid systems.
So, what is the difference between an inverter and a converter charger? One is that an inverter charger is capable of generating 120-volts of AC current from a 12-volt battery even when shore power is not available. Another difference is that an inverter charger offers only multi-stage charging. So, you won’t find a single-stage inverter battery charger.
3. Solar-powered charger
As the name suggests, this is a type of charger that adopts solar energy to charge your RV battery. It comprises solar panels that generate the energy needed by using sunlight. Therefore, as long as there is enough sunlight, this charger will provide you with a constant stream of power.
However, these chargers have different wattages, which determines how much power they can generate. For instance, some chargers come with small solar panels rated 10W to 20W. These are only best suited for maintaining your RV’s battery power. However, other chargers come with bigger panels rated above 100W. Thus, you can use them to power up everything in your RV.
4. Multi-stage charger
This type of charger is quite common in most modern RVs. Basically, a multi-stage charger can either be a converter or an inverter charger. And as the name suggests, this type of charger is designed to charge your RV battery through different stages. What it does is that it automatically switches to the appropriate charging mode. As a result, this helps to optimize your battery’s charge, health, and lifespan.
Generally, various multi-stage chargers offer different charging features. Some just provide 3-stage charging while others up to 10. Bulk, float, absorption, reconditioning, soft start, and battery desulfation are the most typical charging stages offered by these chargers.
5. Trickle charger
Last but not least, we have a trickle charger, which is designed to deliver a very low voltage. Simply put, it delivers a charge that is almost equal to your RV’s battery rate of self-discharge without overcharging. Most trickle chargers only generate up to 2 Amps of charging current. Unlike other types of chargers, you can leave your trickle charger on your RV for a long period to recharge the battery.
Difference Between Deep Cycle vs. Regular Battery Charger?
Like most people, you probably think that a deep cycle and regular battery charger are all the same. After all, both can be used to charge lead-acid batteries. However, these chargers have some differences including.
One of the significant differences between a 100ah deep cycle battery and a regular battery charger is their charging speed. You see, a deep cycle charger delivers small amounts of charge at a consistent level to your battery. The charging may take at least two days.
However, a regular battery charger usually gives out a large amount of charge but over a short time. This type of charger simply provides you with an instant solution.
Deep cycle battery chargers have more advanced features than their regular counterparts. For instance, you will find that most deep cycle chargers support battery reconditioning and are fully automatic. Other models feature modes like voltage detection and maintenance stage. However, regular chargers don’t have any of this.
Effect on battery life
A deep cycle charger will take your battery through different stages of charging. This helps ensure your battery is charged with precision and to full capacity. As a result, you can expect increased battery life.
On the other hand, regular chargers charge your battery very fast. This may lead to the build-up of sulfate debris on your battery’s plate with time. Consequently, your battery life ends up being reduced.
Another difference between the two chargers is their price. Overall, a 100ah deep cycle battery charger is relatively more expensive than its regular counterpart.
What Size Battery Charger Do I Need For My RV?
It depends on the capacity of your battery. Therefore, you need to know your RV battery’s Amp-hour (Ah) rating. But as a general rule of the thumb, the right size charger should be 10% minimum of your RV’s battery Ah rating. This simply means that if your RV battery is rated 100Ah, you should get a charger with a minimum 10-Amp in size.
What Amp Should I Charge My Deep Cycle Battery?
The right battery charger should deliver at least 10% of the maximum amperes of your battery. For instance, if your battery is rated at 200 amp-hours, your charger should deliver at least 20-amps of power. However, you should always check the specifications of your battery for the proper charge rate.
Is Schumacher A Good Battery Charger?
Yes. Their chargers are designed to offer reliable and efficient charging performance. Some of their models even allow you to charge completely dead batteries as low as 0.0V. This is a feature that most battery charger manufacturers out there don’t provide you with. And this can be seen with their SC1280 Fully Automatic Battery Charger.
How Can You Tell If A Battery Charger Is Working?
You just use a voltmeter, also known as a multimeter, to test the power levels of your charger. Start by plugging in your charger and the voltmeter to an outlet and turning them on. Set your multimeter to the highest level for DC Volt using the selector switch.
Next, get a battery that is compatible with your charge. Then, place the red probe to the positive end of your battery and the black test probe on the negative side. Lastly, check the readings on your volumeter. If you get a negative reading, it means your charger is not working.
Besides ensuring your RV battery does not run out of charge, an RV battery charger will also extend your battery’s lifespan. However, when choosing the best RV battery charger, you must consider factors such as its charging voltage and current. It is also important that you know the different types of RV battery chargers available and even what size charger you need. Knowing all this will help you choose the right RV battery charger for your needs.
Having said that, our pick for the best overall RV battery charger is none other than the NOCO GENIUS GEN5X2. This is because it is fully automatic with multiple protection features. But if you want a more affordable option, we recommend the Schumacher SC1280 Fully Automatic Battery Charger.