What does the BMS (Battery Management System) look like on the negative side of the battery?

Example of what a BMS (Battery Management System) looks like

🔧 What you see in the pictures: A small module mounted directly on the negative terminal of the battery There is a socket with cables (communication with the car's computer) Often looks like a "sensor" or a plastic block on the cable

🧠 What does a BMS do BMS (Battery Management System): monitors voltage, current and temperature calculates state of charge (SoC) and state of charge (SoH) controls charging from the alternator controls the Start-Stop system

📍 Where is it located Usually:

on the negative terminal of the battery or very close to it along the cable In cars from brands such as BMW, Mercedes-Benz and Volkswagen, it is almost always there.

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