Silvercrest STK 16 B2 Assembly, Operating And Safety Instructions page 15

Only use the same type of batteries / rechargeable batteries. Do
not mix used and new batteries / rechargeable batteries.
Remove the batteries / rechargeable batteries if the product will
not be used for a longer period.
Risk of damage of the product
Only use the specified type of battery / rechargeable battery!
Insert batteries / rechargeable batteries according to polarity
marks (+) and (-) on the battery / rechargeable battery and the
product.
Clean the contacts on the battery / rechargeable battery and in
the battery compartment before inserting!
Remove exhausted batteries / rechargeable batteries from the
product immediately.
Do not ingest the battery, chemical burn hazard.
The product contains a coin/button cell battery. If the coin/button
cell battery is swallowed, it can cause severe internal burns in just
2 hours and can lead to death.
Keep new and used batteries away from children.
If the battery compartment does not close securely, stop using the
product and keep it away from children.
If you think batteries might have been swallowed or placed inside
any part of the body, seek immediate medical attention.
GB/IE/NI 11