What is battery management system (BMS)?

Battery Management System (BMS) is the “intelligent manager” of modern battery packs, widely used in fields such as electric vehicles, energy storage stations, and consumer electronics.

What is a BMS used for?

A Battery Management System (BMS) is widely used in various applications such as electric vehicles (EVs), energy storage systems (ESS), uninterruptible power supplies (UPS), and industrial battery applications.

What are the components of a battery management system (BMS)?

A typical battery management system (BMS) consists of the following main components: Battery Management Controller (BMC), Voltage and Current Sensors, Temperature Sensors, Balancing Circuit, and Power Supply Unit.

What is a battery balancing system (BMS)?

Cell balancing: Over time, the cells in a battery pack can become unbalanced, with some cells having higher or lower charge levels than others. A BMS can balance the cells by ensuring each cell is charged and discharged evenly, which helps maximize the battery run time.

What is a battery management system?

A battery management system can be comprised of many functional blocks including: cutoff FETs, a fuel gauge monitor, cell voltage monitor, cell voltage balance, real time clock (RTC), temperature monitors and a state machine. There are many types of battery management ICs available.

How does BMS calculate battery capacity?

A Battery Management System (BMS) calculates key battery metrics, including the available battery capacity compared to its full capacity, known as State of Charge (SoC).