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How to prevent battery overcharging
How to prevent battery overcharging

In order to prevent the battery from overcharging, it is necessary to control the charging end point. When the battery is fully charged, there will be some special information that can be used to judge whether the charging has reached the end point.

There are generally the following six methods to prevent the battery from being overcharged:

In order to prevent the battery from overcharging, it is necessary to control the charging end point. When the battery is fully charged, there will be some special information that can be used to judge whether the charging has reached the end point.

 

There are generally the following six methods to prevent the battery from being overcharged:

  1. Peak voltage control: judge the charging end by detecting the peak voltage of the battery;
  2. dT/dt control: determine the end of charging by detecting the rate of change of battery peak temperature;
  3. T control: the difference between the temperature and the ambient temperature will reach the maximum when the battery is fully charged;
  4. -V control: When the battery is fully charged and reaches a peak voltage, the voltage will drop by a certain value
  5. Timing control: control the charging end by setting a certain charging time, generally set the time required to charge 130% of the nominal capacity to control;
  6. TCO control: Considering the safety and characteristics of the battery, charging at high temperature (except for high temperature batteries) should be avoided, so when the temperature of the battery rises to 60 OC, charging should be stopped.

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