The wall-mounted lithium battery should be stored at a temperature of 0 ° C ~45 ° C and humidity of (65 ± 15) %. If you want to keep the battery for a long time, you can put it in a dry and low temperature environment, keeping the remaining capacity of the battery at about 50% is ideal. Of course, it is best to remove the battery once a month, which can ensure the good preservation of the battery, but will not allow the battery to completely overdischarge and damage the battery.