Battery Management Systems (BMS) connect to high-energy battery packs and manage the charging and discharging of the pack. They also monitor essential safety factors including temperature, state of charge and the pack’s state of health. Providing additional application protection, the BMS is able to connect the battery and disconnect it from the load or charging source, as required.
This application note provides an overview of the key features of battery monitoring Integrated Circuits (ICs) typically specified in BMS. It includes background information on battery cell chemistries as they relate to the requirements for communications in high voltage BMS.