Silvercrest SFW220 Quick Start Manual page 23

Avoid contact of leaking chemicals with the skin, eyes and mucous
membranes. In the event of contact with battery acid, thoroughly flush
the affected area with plenty of clean water and seek immediate medical
attention.
WEAR PROTECTIVE GLOVES! Leaked or damaged
rechargeable batteries can cause burns on contact with the
skin. Wear suitable protective gloves at all times if such an
event occurs.
This product has a built-in rechargeable battery which cannot be
replaced by the user. The removal or replacement of the rechargeable
battery may only be carried out by the manufacturer or their customer
service or by a similarly qualified person in order to prevent hazards.
When disposing of the product, it should be noted that this product
contains a rechargeable battery.
Risk of property damage
This product does not contain any parts which can be serviced by the
user. The rechargeable battery cannot be replaced.
Do not place burning candles or other open fire on or next to the product.
If you notice smoke or unusual noise or odour, switch the product off
immediately. If this happens during charging, disconnect the product
immediately from the USB port.
Sudden temperature changes may cause condensation inside the
product. In this case, allow the product to acclimate for some time before
using it again to prevent short circuits!
GB/IE 23