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The function of the lithium iron battery protection board and the use of charging and discharging

by:Vglory      2021-04-25
The function of the iron-lithium battery protection board ①The protection board has the function of overcharging voltage protection. The maximum limit voltage of a single lithium battery is set to 4.2V. When the charging voltage reaches this value, the circuit board limits charging and has individual cells. The battery indicator shows. ②The protection board has an overcurrent protection function. When the working current exceeds the rated value, the lithium battery protection board sends a signal to stop the lithium battery pack. ③The protection board has a short-circuit protection function. When the external short circuit is caused by various reasons, the lithium battery protection board will protect the lithium battery pack and be wary of damage to the lithium battery pack. ④The protection board has a temperature protection function. When the working temperature of the battery exceeds the rated value, the work of the lithium battery pack is stopped through the circuit board to avoid accidents, thereby protecting the battery pack and the user. Iron-lithium battery protection board charging and discharging usage matters The purpose of the protection board is to protect the battery from overcharge and overdischarge, prevent high current damage to the battery, and balance the battery voltage when fully charged. The charger proposes the highest voltage, so that the battery life is guaranteed, but because the protection board has not yet begun to balance, if the battery core has a large self-discharge, it will show a gradual decrease in the capacity of the entire group over time. Therefore, it is necessary to charge each battery to 3.5v-3.6v regularly and keep it for several hours. The greater the self-discharge, the longer the balance will take. The cells with excessive self-discharge are difficult to balance and must be eliminated. So when choosing the protection board, try to choose 3.6v overvoltage protection, and start the equalization around 3.5v. The iron-lithium battery protection board is necessary to be useful. The protection board circuit can separately test the voltage and current of each battery in the series battery pack, and control the charging and discharging process of the battery pack. At present, the market is full of various protection board batteries, and the protection board itself is also very different. It is very important to choose a protection board battery that suits you. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Functional analysis of the iron-lithium battery protection board
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