▼Activate charging
Newly purchased lithium-ion batteries or lithium-ion batteries that have been stored unused for a long time generally need to be activated by charging. However, the activation of lithium-ion batteries is different from that of other types of batteries. Lithium-ion batteries are easy to activate and can usually be activated and restored to their normal capacity after three to five normal charge-discharge cycles.
Due to their inherent characteristics, lithium-ion batteries have virtually no memory effect. Therefore, no special methods or equipment are needed for activating lithium-ion batteries through charging. Using standard charging methods for natural activation is the best approach for lithium-ion batteries.
When the lithium-ion battery has been activated and its capacity restored, it is important to note that the lifespan of a lithium-ion battery is generally calculated not in years, but in the number of charge-discharge cycles.
However, the number of charge-discharge cycles is quite different from the number of charging cycles alone.
A complete charge-discharge cycle, also known as a full charge-discharge cycle, refers to using up at least 10% of the lithium-ion battery's capacity before recharging it to above 90%, which is considered a full charge-discharge cycle.
The charge/discharge cycle count refers to the number of complete charge cycles, while the simple charge count generally refers to the number of times a lithium-ion battery is connected to a charger for charging. Regardless of the remaining charge level of the lithium-ion battery before charging, each time it is connected to a charger for charging, it counts as one charge cycle.
▼ Normal charging
Normally, to extend the lifespan of lithium-ion batteries, they are charged by connecting the charger when the battery level is close to the low battery warning line, and then charged until fully charged.
It is best not to wait until the lithium-ion battery is completely depleted before charging it. Doing so may cause the lithium-ion battery to over-discharge, resulting in a low voltage and ultimately preventing it from charging and turning on normally.