What is the detection method of the lithium battery pack protective plate?

　　Author ：Iflowpower – Portable Power Station Supplier

The use of lithium-ion battery protectors does not understand, lithium-ion battery protective board, as the name implies is to protect the lithium-ion battery pack, the use of lithium-ion battery protection board is to protect the battery, but fill, but flow, and Is output short circuit protection. Control panel specific use lithium-ion battery protective board important to protect the charge and discharge of lithium ion battery packs. When it is charged, the voltage difference between the individual monomer lithium ion batteries is less than the value thereof, and the equalization charging of each single cell of the lithium ion battery pack can effectively improve the lithium-ion battery composed of string.

Package charging effect. At the same time, the protective board can also detect overpressure, undervoltage, overcurrent, short circuit, over-temperature state of each monomer lithium ion battery in the lithium ion battery pack, and detect these states, the protective plate can be adjusted in time and warning, protection Board can effectively protect and extend the life of lithium-ion battery packs. The use of undervoltage protection is to prevent individual lithium ion batteries in lithium ion battery packs damage due to excessive discharge due to excessive discharge.

Protective board quality 1. The function of the protective plate configured by the lithium-ion battery pack processed by different manufacturers is not necessarily the same, and some protective plates are designed to have thermistors for overheating lithium-ion battery packs. The thermistor on the protective plate is only supplied to the external circuit to supply a temperature sensor.

If the protected plate circuit is poor, the lithium-ion battery is very susceptible to damage. Therefore, check the circuit of the protector is the important first step in our detection protection board. Second, the cable is used to determine the correctness of the cable wiring through the multimeter.

By pressing the B-line terminal and multimeter red table pen pressing B1 line terminal with a meter black table pen, obtain the first string battery voltage. In this way, all skewers in the lithium ion battery pack are measured. If the cable wiring is correct, and all battery string power supply is below a certain value, then the protective plate is used to protect the consistency of all batteries of lithium ion battery packs.

Third, the measurement voltage is measured after the lithium-ion battery pack voltage confirms it normally, and the cable is inserted into the protective plate, measuring the resistance between the ports between the protective plates, if the resistance is zero, then explain the lithium-ion battery pack before unimpeded, The protective board has a good purpose. .