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9 Best RV Battery Monitors In 2024

RV battery monitors provide real-time insights into battery performance, including voltage, current, and capacity, ensuring optimal energy usage and preventing unexpected power outages. These monitors help extend battery life and enhance the overall RV experience.

  • Current Range: Look for monitors with a wide current range reading, such as 0 to 100 amps or 0 to 500 amps, to check your RV’s battery output accurately.
  • Voltage Range: Check the voltage range of the monitor, typically ranging from 6.5 volts to 100 volts or 10 volts to 120 volts, to ensure proper charge output from your batteries.
  • Bluetooth Connectivity: Some monitors offer Bluetooth connectivity, allowing you to view battery details directly on your smartphone alongside the front display.

While these factors are crucial, also consider other features and options, along with a comprehensive “Buying Guide”. Armed with this information, you can confidently select the best RV battery monitor for your needs.

Best RV Battery Monitors Table

Best RV Battery MonitorsCurrent RangeVoltage RangeWarrantyBuy Now
bayite DC 6.5-100V Battery Monitor0 to 100 amps6.5 to 100 volts1 yearCheck On Amazon
DROK RV Battery Monitors--10-100V--Check On Amazon
INNOVA 3721 Battery Monitor--12 volts1 yearCheck On Amazon
Renogy 500A Battery Monitor0 to 500 amps10 to 120 volts3 yearsCheck On Amazon
Victron Energy BMV-712 Battery Monitor0 to 500 amps6.5 to 70 volts5 yearsCheck On Amazon
MORNING GROUP RV Battery Monitors300A200V--Check On Amazon
MNJ Multifunction Battery Monitor0 to 100 amps0 to 200 volts--Check On Amazon
ANCEL BM300 Battery Monitor--12 volts3 yearsCheck On Amazon
Quicklynks RV Battery Monitors--12V--Check On Amazon

Best RV Battery Monitors Reviews

1. bayite DC 6.5-100V Battery Monitor

bayite DC 6.5-100V 0-100A LCD Display

Bayite is one of the newest brands out there that still offers one of the most popular RV battery monitors as it makes for a great option for those who are on a tight budget.

This Bayite RV battery monitor comes at the 3rd position of this article because it is the cheapest option stated here in this list. And even at its given price tag, you get a decent current reading range of 0 to 100 amps out of it. You also get a pretty decent voltage reading range of 6.5 to 100 volts with this RV battery monitor making it highly versatile.

Speaking of versatility, it happens to be a 4 in 1 meter that can also show you active power usage and energy rating as well. Unfortunately, the display size of this budget-friendly RV battery monitor is a bit limited which is to be expected at the given price. Although, what you will not expect is that included 1-year long warranty.

Best Features

  • Offers a current range of 0 to 100 amps
  • Supports a voltage range of 6.5 to 100 volts
  • Comes with a 1 year long warranty period


  • Entry-level RV battery monitor for budget buyers
  • Decent current and voltage range
  • Shows multiple battery readings


  • Screen size is a bit limited

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2. DROK RV Battery Monitors

DROK RV Battery MonitorsDROK Battery Monitor is a modern digital tester that works with batteries ranging from 10 to 100 volts. It is designed for different types of batteries like lithium, lead-acid, LiFePO4 and NiMH. It can work well in temperatures from -10 to 55 degrees Celsius. It has a bright screen that makes it easy to read and understand the information without any trouble.

It comes with strong protection. It has an outer shell strong which can handle dust and water. It has a feature that stops problems if you connect it the wrong way. It has a low voltage alarm that keeps you safe. It warns you when your battery is getting low, so you can avoid sudden power problems. It is good for four types of batteries and it has a simple screen that shows three important things.

Best Features

  • Works with a wide range of batteries (10-100V) including lithium, lead-acid, LiFePO4, and NiMH.
  • Measures battery voltage, capacity, and temperature for comprehensive monitoring.
  • Features a clear LCD screen for easy readings.
  • Robust shell, dustproof and waterproof, and reverse connection protection.
  • Alerts users when the battery is running low.


  • Wide compatibility with various battery types.
  • Comprehensive monitoring for battery health.
  • Durable and weather-resistant design.
  • Easy-to-read LCD screen.
  • Protective features for safe usage.


  • No Waterproof

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3. INNOVA 3721 Battery Monitor

INNOVA 3721 Battery Monitor

Innova is a fairly new brand of battery-related accessories and tools that you can keep in mind if you want something unique and compact in terms of its form factor and function.

The Innova 3721 RV battery monitor is among one of the most unique battery monitor models available out there. This is primarily due to the reason that instead of connecting directly to the batteries of your RV, it connects to the 12-volt power sockets present inside your RV. As a result, it has a fixed voltage reading value of 12 volts. Unfortunately, it does not show you the current value which can be quite an issue for many.

Although, checking the battery capacity and voltage is still pretty easy thanks to its LCD display and colored LED indicator lights. Even with its compact size, it has an adjustable head allowing you to check all the required details. Innova includes a decent 1-year long warranty with this RV battery monitor which is always great to have.

Best Features

  • Supports a voltage range of around 12 volts
  • Plugs into 12-volt cigarette lighter power point
  • Comes with a 1 year long warranty period


  • Unique and compact form factor
  • Includes LCD display and colored LEDs
  • Decently affordable RV battery monitor


  • Lacks any current range reading option

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4. Renogy 500A Battery Monitor

 Renogy 500A Battery Monitor

Even though Renogy is a bit on the expensive side, its RV accessories and products can be a great option if you want a battery monitor made for heavy-duty usage.

Renogy’s 500A RV battery monitor comes at the 2nd position of this listicle as this RV battery monitor offers the highest ranges in terms of the readings that it can offer to the user. For starters, it features a current range of 0 to 500 amps. This is combined along with a pretty high voltage range of 10 to 120 volts which should be more than enough than what you will ever require.

While this RV battery monitor does not feature Bluetooth connectivity, you do get a pretty large screen size included with it for easily checking your readings. Talking about the readings, this battery monitor also shows you battery capacity and power consumption along with backlighting and data storage features. Because this RV battery monitor is meant for heavy-duty usage, it also includes a decent 3-year long warranty.

Best Features

  • Offers a current range of 0 to 500 amps
  • Supports a voltage range of 10 to 120 volts
  • Comes with a 3 year long warranty period


  • Quite a large display with various functions
  • Supports 4 types of different readings
  • Perfect for heavy-duty usage


  • Lacks Bluetooth connectivity even at the given price tag

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5. Victron Energy BMV-712 Battery Monitor

Victron Energy BMV-712 Smart Battery Monitor

Victor Energy is quite a popular brand of energy and power-related products since most of its offerings include various handy features while being highly reliable for long-term usage.

The Victron Energy BMV-712 Smart RV battery monitor comes at the 1st position of this list since this is one of the most durable and reliable options out there. Not only that but this RV battery monitor also supports a pretty high current range of 0 to 500 amps which is always great to have. Although, its voltage range of 6.5 to 70 volts can be a bit limited.

Despite having such a small form factor, this RV battery monitor still manages to include a compact display at the front. And if that is not enough for you, you will be glad to know that this is a smart battery monitor which includes Bluetooth connectivity and a companion smartphone app. Coming to one of the key features of this RV battery monitor, you will be glad to know that it includes a 5-year long warranty making it ideal for long-term usage.

Best Features

  • Offers a current range of 0 to 500 amps
  • Supports a voltage range of 6.5 to 70 volts
  • Includes Bluetooth connectivity
  • Comes with a 5 year long warranty period


  • Fairly compact RV battery monitor
  • Perfect for long term usage
  • Supports a companion smartphone app over Bluetooth


  • Voltage range could have been better

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6. MORNING GROUP RV Battery Monitors

MORNING GROUP RV Battery MonitorsDC Multifunction Battery Monitor Meter is a device designed to enhance your power monitoring experience. This meter does 9 things at once, giving you a complete look at your power system. This meter measures everything in your power system, like voltage (up to 200V), current (up to 300A) and power (up to 60,000W). It also checks other things, like how much energy has been used and how long everything has been running (up to 999 hours). The big screen on this device is easy to read from any angle and you can even turn on a blue light to make it even easier to see. This measures Impedance from 0 to 1000 ohms.

It can be used in different things like solar systems, assembly lines, cars and RVs. This device works well and does not use much power. When it is in active, it uses between 0.03 and 1.2 watts, and when it is in sleep mode, it uses even less, between 0.5 milliwatts and 0.5 watts. This device works well in hot and cold temperatures, from -20°C to +60°C.

Best Features

  • Measures voltage, current, power, impedance, internal resistance, capacity, dump energy, and running time.
  • Large LCD with a 180° viewing angle and optional blue backlight.
  • No screws required, press-down terminal buttons for simple setup.
  • Suitable for solar systems, industrial assembly lines, automobiles, RVs, and more.
  • Low power consumption in both normal and sleep modes.
  • Works well in temperatures ranging from -20°C to +60°C.


  • Comprehensive 9-in-1 functionality.
  • Easy-to-read display with optional backlight.
  • Simple and tool-free connection.
  • Versatility for various applications.
  • Energy-efficient operation.
  • Reliable performance in different temperature conditions.


  • Connectors does not work

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7. MNJ Multifunction Battery Monitor

MNJ Multifunction Battery Monitor

MNJ Motor makes a wide range of products, tools, and accessories related to all sorts of automobiles including RVs for which it makes a few handy RV battery monitors.

The MNJ Motor RV battery monitor might be the perfect option for you if you want a high voltage readings range for testing large parallel battery setups. To be exact, this RV battery monitor supports the highest voltage rating of 0 to 200 volts in this listicle. This is combined along with a fairly high current range of 0 to 100 amps which is quite good especially for the given price tag.

Because this is a fairly affordable RV battery monitor, its given compact display is to be expected. However, it still features backlighting, 9 in 1 reading functions, and much more making it a highly versatile option. Although, this RV battery does not come with any warranty which can be a big issue for a lot of buyers.

Best Features

  • Offers a current range of 0 to 100 amps
  • Supports a voltage range of 0 to 200 volts
  • 9 in 1 measurement and reading options


  • Excellent voltage reading range
  • High value for money RV battery monitor
  • Supports backlighting function for the display


  • Does not come with a warranty

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8. ANCEL BM300 Battery Monitor

ANCEL BM300 Battery Monitor

While Ancel might be a new brand of products like RV battery monitors made for use in your vehicles and RV’s, it can certainly be a great option if you want something smart and feature-rich.

Ancel BM300’s RV battery monitor is most likely the smartest and most versatile battery option stated in this listicle. This is due to the reason that not only does it come with Bluetooth connectivity, but it even supports a highly functional smartphone app. Unfortunately, this RV battery monitor only works with 12-volt batteries and does not have a voltage reading range.

But the biggest issue with this RV battery monitor is that it does not show you the current output offered by the batteries that you are testing. Since this is a smart RV battery monitor, it does not include a display resulting in a lightweight and compact form factor. As you will be using a smartphone app for using this Rv battery monitor, it can even store the readings for the last 31 days. Just like most other RV battery monitors, this Ancel one also includes a decent 1-year long warranty for your peace of mind.

Best Features

  • Supports a voltage reading of 12 volts
  • Includes Bluetooth connectivity
  • Comes with a 1 year long warranty period


  • Highly compact and lightweight form factor
  • Quite a versatile and advanced smartphone app
  • Stores readings and data for the last 31 days


  • Does not show the current reading

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9. Quicklynks RV Battery Monitors

Quicklynks RV Battery MonitorsQUICKLYNKS BM2 is a Wireless 12V Battery Monitor that makes managing your battery a breeze. This device works with 12V batteries in cars, motorcycles, RVs, and solar systems. It shows you how your battery is doing in real-time. It works with input voltages from 6V to 20V and uses an average current of 1.5mA. It can operate in temperatures from -40 to 90℃.

BM2 checks important things about your battery such as its power, charge level, ability to start the engine and if it starts and stops the right way. It uses bluetooth 4.0 and can measure voltages between 9 and 16 volts. It works well within a range of 10 meters, with an accuracy of ± 0.03V. It has wireless features and can check many batteries, making it perfect for different uses. The device has strong protection to keep it safe from electrical problems like short circuits and the wrong connections, making sure it works safely and reliably.

Best Features

  • Works with various 12V batteries, including cars, motorcycles, and solar systems.
  • Monitors voltage, charge level, cranking power, and start/stop detection.
  • Sends intelligent notifications for low voltage conditions to your iOS or Android device.
  • Input voltages from 6V to 20V and uses an average current of 1.5mA.
  • Temperatures from -40 to 90℃.
  • Enables convenient monitoring without the need for physical connections.


  • Easy to use with automatic connection.
  • Multiple battery support for versatile applications.
  • Short circuit and reverse connection protection for safety.
  • Records trip duration for added insights.


  • Short Bluetooth range

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Buying Guide For The Best RV Battery Monitors

Whether you are using your RV’s engine to charge the batteries or an external solar panel system, it is highly important to check if the batteries are getting properly charged so that you can rely on them in all situations. One easy way to get an idea of the charge offered by your RV batteries is to get something like the RV battery monitors stated up above.

With all these various RV battery monitors, we have also stated their important information like features and factors that can be handy to pick the right RV battery monitor. Although, if you are still confused, make sure to check out this detailed buying guide for the best RV battery monitors:

1. Current Range

Why It Matters: The current range of an RV battery monitor is crucial because it directly affects your ability to power various electronic devices and appliances within your RV. A monitor that can read a wide range of current outputs ensures you can safely and efficiently power everything from small gadgets to larger appliances without exceeding the power limits of your battery setup. This not only prevents potential damage to your electronics but also ensures optimal battery usage and longevity.

What to Look For

  • Wide Current Range: Opt for monitors that offer a broad current reading range, particularly those that can measure up to 500 amps, to accommodate a diverse array of power requirements.
  • Accuracy: Look for models known for their precision in current measurement to ensure you’re getting reliable data on what your RV and appliances are actually drawing.
  • Compatibility: Ensure the monitor is compatible with your RV’s battery type and configuration, especially if you have or plan to have a complex setup with multiple batteries.

2. Voltage Range

Why It Matters: Voltage compatibility is as critical as the current range because it determines whether your battery can safely power your RV’s electronic devices without causing damage. An incompatible voltage can lead to underperformance of devices, or worse, permanent damage. Hence, having a battery monitor that can check a wide range of voltage outputs allows for greater flexibility and compatibility with various devices and battery types.

What to Look For

  • Broad Voltage Range: Seek out monitors that cover a comprehensive range of voltage readings, such as 0 to 200 volts, to ensure compatibility with all your devices and battery setups.
  • Multiple Battery Types: Consider monitors that are capable of reading different types of batteries (lead-acid, lithium, etc.), offering more versatility in monitoring various battery systems.
  • Precision: Accuracy in voltage measurement is key to ensuring your devices operate safely and efficiently, so precision should be a priority.

3. Display

Why It Matters: The display of your RV battery monitor plays a significant role in how easily and quickly you can assess your battery’s status and health. A clear, readable display ensures you can monitor your battery outputs accurately, even in less-than-ideal lighting conditions. This can be critical in preventing over-discharge, optimizing power usage, and avoiding potential electrical issues.

What to Look For

  • Clarity and Size: A larger display with clear, readable metrics can make it easier to quickly check battery status.
  • Backlighting: A backlit display is invaluable for readability in low-light conditions, such as during night-time RV use or in poorly lit environments.
  • Information Layout: Look for displays that offer a logical and comprehensive layout of information, showing all necessary data (like current, voltage, and possibly temperature) at a glance.
  • Display Type: Consider the type of display (LCD, LED, etc.) based on your preference for durability, energy consumption, and visibility under various lighting conditions.

4. Bluetooth Connectivity

Why It Matters: Bluetooth connectivity in RV battery monitors elevates the convenience and accessibility of monitoring your RV’s batteries. It eliminates the need to physically check the monitor’s display, offering the flexibility to access detailed battery information directly from your smartphone. This feature not only adds to the versatility of the device but also enables you to receive more comprehensive data than what is typically displayed on the monitor itself. For RV owners who prioritize ease of use and detailed battery monitoring, Bluetooth connectivity is a significant advantage.

What to Look For: When considering RV battery monitors with Bluetooth connectivity, look for models that offer a robust companion app compatible with your smartphone’s operating system. The app should provide an intuitive interface for easy navigation of battery details. Check for features like real-time monitoring, history logs, and alerts for critical battery conditions. Additionally, consider the range of Bluetooth connectivity to ensure it meets your needs within the RV’s space.

5. Readings and Functions

Why It Matters: The breadth of readings and functions available on RV battery monitors significantly impacts their utility. Beyond basic voltage and current monitoring, advanced functions like power, energy, battery capacity assessment, and more, provide a holistic view of your RV’s battery health and performance. This comprehensive data is crucial for making informed decisions about battery maintenance, ensuring longevity, and avoiding unexpected power issues during your travels.

What to Look For: Seek out RV battery monitors that offer a wide range of functions and readings beyond the basics. Monitors that can measure power consumption, energy usage, battery capacity, and other metrics can give you a complete understanding of your battery setup. Pay attention to the accuracy of these readings and the monitor’s ability to track data over time for trend analysis. Compatibility with different types of batteries, such as lead-acid, lithium, etc., is also a key factor to consider for versatility.

6. Installation

Why It Matters: The ease of installation of an RV battery monitor can greatly influence your experience and the speed at which you can start utilizing the device. Monitors that offer simple plug-and-play options through car charger outlets provide convenience but may be limited in the scope of their monitoring capabilities. In contrast, monitors requiring direct battery connections through shunts and wires offer more comprehensive data but involve a more complex setup process. The choice of installation impacts both the monitor’s functionality and your willingness to integrate it into your RV setup.

What to Look For: When evaluating the installation requirements of RV battery monitors, consider the complexity of your RV’s battery system and your technical ability. For simpler systems or those seeking ease of use, monitors that plug into car charger outlets may suffice. For comprehensive monitoring, especially in larger battery setups, opt for monitors that connect directly to the battery. Ensure the monitor comes with all necessary accessories for installation, such as shunts, wires, and clamps, and verify that clear installation instructions are provided.

RV Battery Monitors – FAQs

1. How does an RV battery monitor work?

Ans: RV battery monitors work by continuously measuring the flow of electricity in and out of the batteries. They calculate the state of charge (SOC) and other relevant parameters to provide accurate information about the battery’s status.

2. Can I install an RV battery monitor myself?

Ans: Yes, many RV battery monitors are designed for DIY installation. However, it’s essential to carefully follow the manufacturer’s instructions and have a basic understanding of your RV’s electrical system. If in doubt, consult with a professional.

3. How does a battery monitor help extend the life of RV batteries?

Ans: By providing accurate information about the state of charge and preventing overcharging or deep discharging, a battery monitor helps RV owners avoid damaging their batteries. This careful management contributes to longer battery life.

4. Are all RV battery monitors compatible with all types of batteries?

Ans: No, not all battery monitors are compatible with all types of batteries. It’s crucial to choose a monitor that is suitable for your specific battery type, whether it’s lead-acid, AGM, gel, or lithium-ion.

5. Can I use multiple battery monitors for different battery banks in my RV?

Ans: Yes, many RV battery monitors are designed to monitor multiple battery banks simultaneously. This is useful for RVs with separate house and chassis battery systems.

6. Do RV battery monitors require regular maintenance?

Ans: In general, RV battery monitors are low-maintenance devices. However, it’s recommended to check and recalibrate the monitor periodically to ensure accurate readings. Regularly inspecting the overall health of your RV’s electrical system is also advisable.


Since an RV is like a mobile home, it’s packed with electronics and appliances, all relying on the RV’s battery for power. To keep track of your battery’s status, it’s wise to invest in one of the top RV battery monitors.

Here are our recommendations:

  • bayite DC 6.5-100V Battery Monitor: Great for those on a budget. Offers a current range of 0 to 100 amps and a voltage range of 6.5 to 100 volts. Despite its compact size, it features an LCD display with four different readings for versatility.
  • Victron Energy BMV-712 Battery Monitor: Known for its reliability, backed by a 5-year warranty. It comes with Bluetooth connectivity, allowing for smart readings via smartphone. Offers a current range of 0 to 500 amps and a voltage range of 6.5 to 70 volts.
  • Renogy 500A Battery Monitor: Ideal if you plan to install multiple batteries in parallel. Boasts a high voltage range of 10 to 120 volts and a current range of 0 to 500 amps, all without a hefty price tag. Renogy offers a respectable 3-year warranty, making it suitable for long-term use.

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