: Often integrated into the MCU, this calculates remaining capacity based on current flow and voltage. Troubleshooting and Monitoring
The BMS monitors the voltage of every individual cell group. If the total voltage or an individual cell voltage hits a danger limit, the BMS opens the MOSFET switches, cutting power immediately. laptop battery bms circuit
In a multi-cell battery pack (like a 3-cell or 4-cell laptop battery), no two cells are identical. One cell will always have slightly more capacity or internal resistance than the others. Over time, this leads to an imbalance where one cell charges fully before the others, or discharges fully before the others. : Often integrated into the MCU, this calculates