Batteries must not be disposed of with household waste. You are legally obligated to return used batteries so that proper disposal can be ensured. You can return used batteries to a municipal collection point or to your local retailer.
Batteries are marked with the symbol of a crossed-out garbage can. This symbol indicates that batteries must not be disposed of in household waste. For batteries that contain more than 0.0005 mass percent mercury, more than 0.002 mass percent cadmium or more than 0.004 mass percent lead, the chemical designation of the respective pollutant is located below the trash can symbol - "Cd" stands for cadmium, "Pb" stands for lead, and "Hg" for mercury.