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• Remove the battery from the equipment if the equipment is not used for a prolonged time (for 
example, several weeks). Otherwise the battery may overdischarge.
• Storing batteries at high temperature for an extended period of time will significantly shorten their 
life expectancy.
• The battery storage temperature is between -5 °C and 35 °C. Storing batteries in a cool place can 
slow the aging process. Ideally the batteries should be stored at 15 °C. 
28.8 Recycling Batteries
Discard a battery in the following situations: 
■ The battery has visual signs of damage.
■  The battery fails.
■  The battery is aged and its runtime significantly less than the specification.
■  The battery service life is reached.
Properly dispose of batteries according to local regulations. 
• Do not open batteries, heat batteries above 60 °C, incinerate batteries, or short the battery 
terminals. They may ignite, explode, leak or heat up, causing personal injury.