The third contact is connected to the NTC temperature resistor. When it is detected that the lithium battery temperature is too high, it will reduce or close the input or output.
The lithium battery protection board is to protect the charging and discharging of the series lithium battery when it is fully charged, it can ensure that the difference of voltage between each battery is lower than that set; value (usually ± 20 mV), to obtain an equal charge of each battery cell.
Effectively improve the charging effect in series charging mode; simultaneously detects the overvoltage, undervoltage, overcurrent, short circuit and overheating status of each battery cell to protect and extend battery life; voltage protection prevents each battery from being damaged due to over-discharge when it isdischarged.
Summary
The finished lithium battery mainly consists of two parts, the lithium battery core and the protection plate. The lithium battery core is mainly composed of positive plate, separator, negative plate and. electrolyte; positive electrode Plates, separators and negative plates are rolled or rolled, packaged and filled with electrolyte. After packaging, the cells are manufactured. Many people don't know the role of lithium battery protection plate.
Lithium battery protection board, as the name suggests, is used to protect lithium batteries. The function of the lithium battery protection board is to protect the battery from discharge, overcharge and overcurrent, as well as output short circuit. -circuit protection.