In relation to selling batteries and accumulators or the delivery of devices which contain batteries or accumulators, we are committed to advice you according to the battery regulation:

As the end consumer you are legally required to return any used batteries. After their use you can return batteries free of charge in the sales office or in their direct proximity (e.g. in municipal collection sites or in commercial outlets). You may also return the batteries by mail to the seller.

Batteries and accumulators should not be disposed of in the garbage. Batteries containing  hazardous substances are characterized by an overwritten garbage bin and marked with the respective chemical symbols (Cd for cadmium, HG for mercury, Pb for lead).