Also known as secondary lithium battery. It can be stored for more than half a year at 20 ° C because of its low self-discharge rate and most of its capacity can be recovered.
The self-discharge phenomenon of lithium battery, if the battery voltage is stored for less than 3.6V for a long time, it will cause the battery to over-discharge and damage the internal structure of the battery and reduce the battery life. Therefore, the lithium battery stored for a long time should be recharged every 3 to 6 months, that is, the charging voltage is 3.8~3.9V (the optimal storage voltage of the lithium battery is about 3.85V), and the temperature should be kept at 40%-60%. It should not be full. The battery should be stored in a dry environment at 4 ° C ~ 35 ° C or moisture-proof packaging. Keep away from heat and keep out of direct sunlight.
Lithium batteries have a wide temperature range and can be used outdoors in the winter in the north, but the capacity will be much lower. If you return to room temperature, the capacity can be restored.