Silvercrest SPC KE500 A1 Operation And Safety Notes page 10

Store batteries in a dry place at room temperature. Batteries are
sensitive to high and low temperatures. Such thermal exposure may
lead to leakage, fire, or explosion.
Keep cells and batteries out of reach of children, especially small
batteries. Ingestion may lead to choking or acute and serious
personal injury.
Keep cells or batteries clean and dry both during use and storage.
Wipe metal terminals with a soft, dry cloth if they become dirty.
Immediately seek medical attention if a cell or battery has been
swallowed. Also, contact your local poison control center.
In the event that the electrolyte comes into contact with the skin or
eyes, immediately flush with fresh water for at least 15 minutes and
seek medical attention.
Store unused batteries in their original packaging or in safe place
and away from metal objects that may short-circuit them.
Exercise care in handling batteries in order to prevent shorting with
conducting materials, such as rings, coins, bracelets, and keys. The
battery or the conductor can overheat and cause burns, leakage,
fire, or explosion.
Clean the battery contacts and also those of the product prior to
battery installation. Keep the contacts clean.
Remove batteries from the product that will not be used for an
extended period of time (months or longer).
Remove discharged batteries from product promptly to avoid
possible damage from leakage.
Choose the proper battery for the intended application.
Always take care to correctly insert batteries observing (+) and
(-) polarity marks on the battery and the product for which it is
intended. Proper polarity must be observed to avoid damage to
either product or batteries.
10 US-EN