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******Note:
Since lithium batteries are consumable items, please check whether the battery is functioning properly upon receipt, and use it properly in future usage. Do not allow power consumption without protection for lithium batteries; make sure to charge only when there is still remaining power in the battery.
As long as the battery isn’t completely drained, it can be used for long periods of time, since the battery has no memory function and there is no lifespan limit. Once the battery runs out of power, it becomes obsolete.
Whether with a protective battery or not, if it is left unused for a long time, it must be kept charged; otherwise, self-discharge may cause the battery to fail.********************************************************************************************************************************************************************************************************************