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Lithium iron phosphate battery,specific reasons for battery failure voltage drop

Time:2023-10-10 Views:694
    As a type of iron battery, lithium iron phosphate battery has always received widespread attention from industry friends. Today, we will mainly talk about the causes and search methods of the voltage drop problem of lithium iron phosphate battery after being fully charged
    1. Under normal circumstances, all batteries will experience a voltage drop after being fully charged. The voltage after the drop is called the "open circuit voltage", and the voltage at the time of full charge cutoff is called the "charging limit voltage". The rated voltage of lithium iron phosphate batteries is 3.2V
    2. The voltage of the battery drops after being fully charged, as long as it is not very large, it can be said that it is normal. If the drop phenomenon is too fast, the biggest possibility is that there is a problem with the quality of the battery, such as high internal resistance and large self discharge
    3. The charger is unstable and mismatched. Under normal circumstances, lithium-ion chargers are charged with constant current or voltage. When the current drops to the actual level or even mA, it will stop. If the charging is not in place, there may be a voltage drop problem
    Storage of lithium batteries after being fully charged depends on the storage time. If stored for a long time, such as one year, it will definitely fall back because there is self discharge inside lithium batteries. Lithium batteries are generally stored between 70% -80%, and this range is the most suitable after testing
    Additionally, it is recommended that if the storage time reaches around six months, it is best to perform a discharge management. If there is a protective board, it is recommended to shorten the time to three months for a discharge, as the protective board consumes electricity and will be faster than usual
    There are two other reasons. The first thing to consider is the duration of use of lithium batteries. If used too long, it can lead to a decrease in electric shock function, which is a decrease in lifespan. Then, it depends on the size of the battery load and whether it matches. Finally, it is necessary to check if there are external factors such as leakage in your circuit system
    Summary:
    1. Due to the high current of the load, the battery discharge function is not functioning properly, which can cause a drop phenomenon
    2. Due to the aging of the battery, the capacity of the battery is low, and when it falls back
 












   
      
      
   
   


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