User manual
78
At the same time, there are some general properties and characteristics to be
observed:
• Chemical reactions are inuenced by the ambience temperature. Too high and
too low temperatures are harmful. The rechargeable battery is best kept at an
even temperature in the range of approx. 10–15 °C. The refrigerator is too cold.
• The higher the cell voltage, the faster will rechargeable batteries age during
storage. Therefore, rechargeable batteries should best be stored only half-
charged.
• High discharge currents stress the rechargeable battery. If the rechargeable
battery is discharged at a lower current than indicated, it will last longer. Old
mobile phone rechargeable batteries can easily be used for a long time, e.g., for
economic LED ashlights.
• Too-deep-discharged rechargeable batteries that are then stored will age more
quickly or cannot be used anymore. Therefore, the charge status must be
monitored at extended storage and the rechargeable battery may have to be
recharged.