How to charge high-rate lithium batteries?

1. New battery charging Generally speaking, to activate the new rate lithium battery, the battery will enter the dormant state after being left for a period of time. At this time, the capacity is lower than the normal value and the use time is also shortened, so it must be started. The activation method of lithium battery is very simple. After 3-5 normal charge and discharge cycles, the battery can be activated to restore its normal capacity. 2. Charging the old battery 1. Charging method The old battery refers to the battery that has been charged and discharged many times, not the scrapped battery. The life of a high-rate lithium battery has nothing to do with the number of charging and discharging. It has no memory effect. No matter how the charging method is, it will not affect the number of charging cycles. Therefore, do not use the battery to charge when the battery is completely discharged. It is best to use a fully charged battery when charging. The charging time is within 2-3 hours. Of course, you also need to fully charge and do shallow charge and shallow discharge. 2. Charging voltage The safe working voltage range of high-speed lithium batteries is 2.8V to 4.2V. When the voltage is lower or higher than this voltage range, lithium ions become unstable in the battery. In order to ensure that the battery is within a safe range, a special charger is required. These chargers will automatically adjust the charging mode according to the current state of the battery. 3. A special charger should be used to charge the high-speed lithium battery of the charging tool to ensure safe charging. When the charger is working, he uses a constant current to charge the battery. As the battery voltage increases, the charger will also increase the charging voltage to speed up the charging speed. When the battery reaches the cut-off voltage of 4.2V, the battery will only charge about 70% (not full). At this time, the charger will continue to charge the battery with a constant voltage and gradually decrease it. When the value is less than 0.1A and the battery voltage continues to rise, it will stop charging. 4. High-rate lithium batteries that are regularly charged and not used for a long time should be stored in a cool and dry place with a half-charged state. A fully charged battery will be damaged, and possibly a battery will be destroyed and lose its function without electricity. During the storage process, a battery calibration is required to complete a charging cycle every 3 to 6 months. 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.