Why do lithium batteries deplete even when not in use when fully charged? All batteries will be discharged. This is the self-discharge phenomenon of rechargeable batteries, meaning they will naturally lose power when not in use. Normally this has no direct relation to the storage method. Generally speaking, the higher the capacity of the rechargeable battery, the more serious the self-discharge. The internal storage of the battery is not consistent and there will be a complementary phenomenon, so the natural discharge is more serious if this is not the case. used for a short time, it is best to store it in a dry place or put it in a special battery box. If not used for a long time, it should be charged and stored regularly to prevent the battery from being "starved" for a long period of time.e. Personal point of view, for reference only.
Lithium batteries should be fully charged when not used for a long time. If stored without power, the lithium battery will be damaged.
How to save cell phone batteries:
1. If the cell phone battery has been left unused for too long, it is best to contact the cell phone maintenance department to request it. battery activation, or you can use it yourself. A DC voltage regulator adjusts the voltage to 5~6V and the current to 500~600mA to connect the battery in reverse. Note that you can release it as soon as you touch it and repeat up to three times. After this process, use the original charger to charge during the "adjustment period".
2. Do not expose the battery to high temperatures or intense colde. For example, during summer days, you should not place your cell phone in the sun to resist the scorching sun; in an air-conditioned room and place it in a place where the air conditioner blows directly. When charging, current flows back into the product and it is normal for the battery to become a little warm.