How to prevent battery overcharging? What are the possible reasons why the battery or battery pack cannot be charged?

What are the control methods to prevent battery overcharging? In order to prevent the battery from being overcharged, it is necessary to control the charging end point. When the battery is full, there will be some special information that can be used to judge whether the charging has reached the end point. Generally, there are six ways to prevent the battery from being overcharged: 01) Peak voltage Control: Determine the end of charging by testing the peak voltage of the battery; 02) dT/dt control: Determine the end of charging by testing the peak temperature change rate of the battery; 03) △T control: When the battery is fully charged, the temperature is between the temperature and the ambient temperature. The difference will reach the maximum; 04) -△V control: when the battery is fully charged and reach a peak voltage, the voltage will drop a certain value; 05) Timing control: control the end of charging by setting a certain charging time, generally set to charge Control the time required to enter 130% of the nominal capacity; what are the possible reasons why the battery or battery pack cannot be charged? 01) The battery has zero voltage or there is a zero voltage battery in the battery pack; 02) The battery pack is connected incorrectly, the internal electronic components and the protection circuit are abnormal; 03) The charging equipment is faulty, and there is no output current; 04) The charging efficiency is too low due to external factors ( Such as extremely low or extremely high temperature). 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 post: Comparative analysis of polymer batteries and lithium ion batteries