Hazards of Long and Deep Charging of Lithium Batteries

　　Long charging may cause overcharging. Lithium batteries or chargers will automatically stop charging after the battery is fully charged, and there is no so-called "trickle" charging that lasts for more than 10 hours as described by nickel chargers. That is to say, if your lithium battery is fully charged and placed on the charger, it is also a white charge. And none of us can guarantee that the characteristics of the battery's charge and discharge protection circuit will never change and the quality will be foolproof, so your battery will be on the brink of danger for a long time. This is also another reason we oppose long-term charging.

　　On certain machines, if the charger is not removed after a certain period of charging, the system not only does not stop charging, but also begins a discharge charging cycle. Perhaps the manufacturer of this approach has its own purpose, but it is clearly detrimental to the battery life. At the same time, long-term charging takes a long time and often needs to be carried out at night. However, according to the situation of China's power grid, the voltage at night in many places is relatively high and fluctuates greatly. As mentioned earlier, lithium batteries are very delicate, and their ability to withstand fluctuations in charge and discharge is much worse than nickel batteries, which brings additional risks.

　　In fact, shallow discharge and shallow charging are more beneficial for lithium batteries, and only when the power module of the product is calibrated for lithium batteries is there a need for deep discharge and deep charging. So, products powered by lithium-ion batteries do not have to be limited to the process, everything should be convenient and charged at any time.

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