How to store lithium-ion batteries

How to store lithium-ion batteries
Lithium primary batteries have low self-discharge and can be stored for 3 years, and the effect will be better if stored under refrigerated conditions. It is a good way to store lithium primary batteries in a low temperature place.
Lithium-ion batteries can be stored for more than half a year at 20°C because of their low self-discharge rate and most of the capacity can be recovered.
The self-discharge phenomenon exists in lithium batteries. If the battery voltage is kept below 3.6V for a long time, the battery will be over-discharged, destroying the internal structure of the battery and reducing the battery life. Therefore, long-term storage of lithium batteries should be recharged once every 3 to 6 months, that is, charging to a voltage of 3.8 to 3.9V (the best storage voltage of lithium batteries is about 385V) is appropriate, and it is not suitable to be fully charged.
The application temperature range of lithium battery is very wide. It can still be used outdoors in winter in the north, but the capacity will be greatly reduced. If it returns to room temperature, the capacity can be restored.