How to buy lithium battery protection board

In order to protect the life of the lithium battery pack, it is recommended that the battery charging voltage does not exceed 3.6v at any time, that is, the protection voltage of the lithium battery protection board is not higher than 3.6v, the equilibrium voltage is recommended 3.4v-3.5v, and the battery discharge protection voltage is generally 2.5v or more. can. The recommended maximum voltage of the charger is 3.5 strings. The greater the self-discharge, the longer the balance will take. The cells with excessive self-discharge are difficult to balance and should be eliminated. So when choosing a lithium battery protection board, try to choose 3.6v overvoltage protection, 3.5v or so to start the balance. In short, the lower the internal resistance of the lithium battery protection board, the better, and the lower it is, the less heating it is. The current limit of the protection board is determined by the constantan wire sampling resistance, but the continuous current capability is determined by the mos. During the charging process of lithium batteries, each lithium battery is equipped with an equalization circuit. During charging, the voltage of each battery is controlled by the equalization circuit of the lithium battery protection board to keep each string of batteries in the same state to ensure the lithium battery's Performance and longevity. The following is a simple parallel stabilized voltage equalization circuit composed of one on each lithium battery. If the regulated power supply set by the equalization circuit of the lithium battery protection board is 4.2V, when the lithium battery does not reach 4.2V, each lithium battery continues to be charged, the equalization circuit is useless, and the charging current continues to pass through the lithium battery: when the lithium battery When one reaches 4.2V, the equalization circuit starts to work, it will stabilize the voltage to 4.2V, that is, the charging current will no longer pass through the lithium battery. Disclaimer: The articles published on this website are all from the Internet. If there is any infringement, please contact to delete it. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.