Steinbach Battery Pro Manual Original página 27

Never use a sharp knife or other pointed object to open the packaging.
You may damage the contents.
Lithium ion batteries in equipment or lithium ion batteries packaged with
equipment.
UN 3481
Weight of the packaging unit.
Dimensions of the packaging unit.
The "GS" (Tested Safety) certification mark confirms the device's
compliance with the German Product Safety Act (ProdSG for short).
This symbol provides information about the energy efficiency of external
V
power adapters.
Only use the charger indoors
This symbol identifies devices that belong to the protection class II.
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