How to charge lithium-ion batteries?

Under normal circumstances, the life of a lithium-ion battery has already begun from the moment it leaves the factory, and it is in a low-capacity self-discharge state. After the battery is left for a period of time, it enters the dormant state. At this time, the capacity is lower than the normal value, and the use time is also shortened. The capacity loss caused by this self-discharge is reversible, which means that it can be recovered by charging the battery. Simply put, this process is like when the human body is not working, the energy consumption is at a low level, but there are still a small amount of cell tissue working to ensure the normal operation of the human body. Regarding the initial charging of the lithium-ion battery, there is a misrepresentation that the charging time of the lithium-ion battery must exceed 12 hours when it is activated, and the charging time must be repeated three times before it can be activated. In fact, this is that both overcharge and overdischarge will cause varying degrees of damage to lithium-ion batteries, and this argument is also for traditional nickel batteries. Lithium-ion batteries are easy to activate. No special methods are needed. Generally, the battery can be activated after 3-5 normal charge and discharge cycles and restore normal capacity. When to charge the lithium-ion battery When to charge the lithium-ion battery? Some people will answer without hesitation: charge the electric car when it is out of power. In fact, yes, because the number of charging and discharging of lithium-ion batteries is limited, the lithium-ion batteries should be used up as much as possible to recharge them. Under normal circumstances, the battery should be used up and then recharged, but according to the actual needs of the specific implementation. For example, the remaining power of the electric car tonight is insufficient to support tomorrow's journey, and the conditions for charging are not available the next day, then it should be charged in time. In fact, the principle of insisting on using up the remaining power of the battery and recharging does not refer to the extreme practice of using the battery completely. If the electric vehicle has a low battery warning, it still does not charge until it cannot drive. In this case, the battery may be over-discharged and the voltage may be too low, which will damage the battery life. 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. Previous: Is it better to use lithium ion batteries or polymer batteries for portable mobile power?