Victron SmartShunt

Why Every Boater Should Have a Victron SmartShunt Installed

When it comes to boating, having a reliable and efficient electrical system is crucial. Whether you’re powering your lights, navigation equipment, or other onboard electronics, you need a battery system that can deliver the energy you need when you need it. That’s where the Victron SmartShunt comes in.

What is the Victron SmartShunt?

The Victron SmartShunt is a battery monitor that allows you to track the performance of your battery system. It measures the state of charge, the amount of energy consumed, and the time remaining until the battery is depleted. It’s a compact and versatile device that’s designed to work with a variety of battery types, including lithium, lead-acid, and others.

The SmartShunt is essentially a shunt resistor that’s placed in series with the battery. It measures the current flowing through the battery and sends that information to a display unit, which provides you with real-time data on the battery’s performance.

One of the key features of the SmartShunt is its Bluetooth connectivity. By connecting the device to your smartphone or tablet via Bluetooth, you can access detailed information about your battery system, including historical data on energy consumption and state of charge. You can also receive alerts if the battery is running low or if there are any issues with the system.

Why is the Victron SmartShunt important for boaters?

There are several reasons why the Victron SmartShunt is a valuable tool for boaters. Here are just a few:

1. It helps you monitor your battery system
With the SmartShunt, you can keep a close eye on the performance of your battery system. By monitoring the state of charge, the amount of energy consumed, and the time remaining until the battery is depleted, you can make informed decisions about how to manage your energy usage. For example, if you see that your battery is running low, you may decide to turn off some of your electronics or run your generator to recharge the battery.

2. It helps you avoid battery failure
One of the biggest risks for boaters is battery failure. If your battery dies while you’re out on the water, you could be stranded or face other dangerous situations. The SmartShunt can help you avoid this by giving you early warning signs of battery issues. If you notice that your battery is not holding a charge as well as it used to, for example, you may need to replace it before it fails completely.

3. It helps you optimize your energy usage.
By monitoring your energy consumption, you can identify areas where you may be using more energy than necessary. For example, if you see that your navigation lights are consuming a lot of energy, you may decide to switch to LED lights, which use less energy. By optimizing your energy usage, you can extend the life of your battery system and reduce your overall energy costs.

4. It helps you plan your trips
If you’re planning a longer trip, the SmartShunt can be especially useful. By tracking your energy consumption and state of charge, you can estimate how long your battery will last and plan accordingly. You may decide to bring a backup battery, for example, or to run your generator more frequently to ensure that you have enough power for the duration of your trip.

How to install the Victron SmartShunt on your boat

Installing the SmartShunt on your boat is a relatively straightforward process. Here are the steps you’ll need to follow:

1. Choose the right location
The SmartShunt should be installed as close to the battery as possible. This will ensure that it accurately measures the current flowing through the battery. You should also choose a location that is easily accessible for monitoring and maintenance.

2. Disconnect the battery
Before you start the installation process, you’ll need to disconnect the battery to avoid any electrical shock or damage to the SmartShunt. Make sure you follow proper safety procedures when working with batteries.

3. Install the SmartShunt
The SmartShunt comes with a set of instructions that you should follow carefully. You’ll need to connect the shunt resistor in series with the negative battery cable, and then connect the positive cable to the battery terminal. The SmartShunt should come with a set of connectors that make the installation process easier.

4. Connect to the display unit(if you have one)
Once the SmartShunt is installed, you’ll need to connect it to the display unit. The display can be your smartphone or tablet via Bluetooth, or you can use a separate Victron display device.

5. Configure the settings
The SmartShunt comes with a variety of settings that you can configure to meet your specific needs. For example, you can set the type of battery you’re using, the capacity of the battery, and the voltage threshold for alerts. Make sure you read the instructions carefully to ensure that you’re configuring the device correctly. Configuring your device wrong, and you will end up with incorrect data.


In conclusion, the Victron SmartShunt is an indispensable device for boaters who want to ensure a reliable and efficient electrical system on their vessel. Its ability to monitor the state of charge, energy consumption, and battery health in real-time provides valuable insights into the performance of your battery system, helping you to optimize your energy usage and avoid unexpected failures.

For Luna, the Victron SmartShunt will be an essential addition to the onboard electrical system, providing a level of safety and convenience that cannot be overstated. By installing the SmartShunt, I will be able to monitor the battery system more closely, detect potential issues early, and make informed decisions about energy usage, ensuring that we can enjoy our time on the water with confidence and peace of mind.

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