|Electric discharge time and a lifetime of the product change with ambient temperature or battery temperature in operation.
At high temperature, as the reaction of active material is strong, discharge time is likely longer, but when those temperatures exeed the operating temperature range, it may generate gas or liquid leakage resulting in short lifetime. Thus cautions are required.
As active material is not being activated at low temperature, the discharge characteristics deteriorates.
In order to keep the stable characteristics, use under a specific temperature environment.