Is the lithium-ion battery protection board the same as the battery management system?

The lithium-ion battery protection board can play a role in the charge and discharge protection of the series and parallel battery packs, and at the same time can test the overvoltage, overcurrent, overtemperature, undervoltage, and short circuit status of each single cell in the battery pack to extend the battery life. Avoid battery damage due to over-discharge. Lithium-ion battery protection board is an indispensable part of lithium-ion battery. The lithium-ion battery protection board also has a balanced protection function, and there are two ways of energy consumption and energy transfer. Energy-consumption equalization refers to the use of resistors to consume a certain battery with high power or voltage among multiple strings of batteries. Energy-consuming balance is divided into equalization during charging, voltage fixed-point equalization, and static automatic equalization. Balance during charging: When charging, when the voltage of any battery is higher than all the uniform voltages, the protection board will start the balance protection. Voltage fixed-point equalization: The lithium-ion battery protection board is set to start the equalization at a voltage point, which is only performed at the end of the battery charging, and the equalization time is short. Static automatic balance: During the process of charging or discharging, even if the battery is in a static state, when the voltage is inconsistent, the lithium-ion battery protection board will start the balance protection until the voltage remains the same. The transfer type is to transfer a large-capacity battery to a small-capacity battery by means of energy storage, and balance the capacity of the test battery, which is divided into constant capacity balance and fixed-point capacity balance. Battery Management System Battery Management System (Battery Management System) is abbreviated as BMS, which has the function of measuring battery voltage, and also contains battery protection function, battery equalization function, battery reserve function, energy calculation function, network communication function, etc. The battery management system can alert the battery to abnormal conditions such as over-discharge, over-charge, and over-temperature. Because lithium-ion batteries may damage battery performance and even cause explosion hazards under severe overcharge and overdischarge conditions, the existence of the battery management system is to monitor, protect, and manage lithium-ion batteries in a balanced manner, thereby improving the work of lithium-ion batteries effectiveness. The similarities and differences between the lithium-ion battery protection board and the battery management system BMS The lithium-ion battery protection board and the battery management system both protect the lithium-ion battery. The differences between them are: 1. Lithium-ion battery protection board is composed of IC, MOS tube, resistor and capacitor components, which is an important component of lithium-ion battery. The battery management system can be edited and comes with battery management software, which is relatively smarter, equivalent to the brain of a lithium-ion battery, and plays a role of control. 2. Lithium-ion battery protection board plays an important role in the field of 3C lithium-ion battery and power battery, and the battery management system is applied in the field of power battery. 3. The battery management system operates better than the battery protection board, but its performance at low temperatures is unstable. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: What is a 18650 lithium ion battery and what is its purpose?