In accordance with IEC, the cell should be stored under temperature 20ºC±5ºC and humidity 65%±20%. Commonly, the temperature is higher while the capacity retention is lower, and vice versa. The best place to store a cell is in a refrigerator with a temperature range of 0ºC-10ºC, especially for primary batteries. For the secondary batteries, their loss of capacity during storage may be better compensated by recharging.
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