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How Does a Battery Management System (BMS) Protect a Boat’s Power System?

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While enjoying a day out on the water, the last thing you want to be doing is worrying about your electrical system. To provide peace of mind and the utmost safety, Battle Born Batteries are equipped with an internal BMS. This ensures they never enter unsafe operating conditions. Rather than constantly monitoring your batteries, you can rest assured that the BMS will keep you and your batteries safe while out at sea. 

What is a Battery Management System? 

Battle Born Batteries BMS Diagram

A battery management system (BMS) is a set of electronics that monitors and manages the battery’s performance. It is critical to the safe operation and overall longevity of the battery. Battle Born Batteries have an internal BMS that monitors each individual cell in the battery pack. Then, it calculates how much current can safely go in and come out without damaging the battery. This ensures the batteries are always operating within the range of safe conditions. If unsafe operating conditions are detected, the BMS shuts down the battery, protecting the user and keeping the battery safe  

How Does a BMS Protect Your Marine Vessel Power System? 

When designing your marine electrical system, it’s essential to take safe operating conditions into consideration. Ensure that your battery bank will be able to function without encountering unsafe operating conditions. Avoiding the potential for low and high voltage, extreme temperatures, and high discharge currents will keep your system running smoothly. Although it’s possible for less-than-ideal operating conditions to arise, a BMS will give you peace of mind.  

While a BMS is critical to the safety of your marine vessel power system and to complying with ABYC-13 standards, it doesn’t monitor everything. The BMS is not designed to monitor high charge current rates. It is up to the user to ensure that their system has been configured to keep the battery charge current below the recommended 0.5C rate. 

Want to Learn More? 

Check out the full Marine 101 series on our YouTube channel or through the Academy page on our website. If you have further questions or need help designing the perfect marine power system, our technical sales team would love to help! You can reach them by calling (855) 292-2831 or emailing [email protected].


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