Mackie GB-100, Replacement Battery for Active Speakers, Suitable for Mackie ShowBox and Thump GO, Operating time: up to 12 hours, Dimensions: 84 x 61 mm, Weight: 500 g@+Note on disposal: Due to the German Battery Act (BattG), you as the end user are obliged to return all used batteries and rechargeable batteries. Disposal via household waste is not permitted! Batteries and rechargeable batteries containing harmful substances are labelled with the symbol of a crossed-out dustbin and the chemical symbol (Cd = cadmium; Hg = mercury; Pb = lead) of the heavy metal that is relevant for the classification. Used batteries and rechargeable batteries can be returned free of charge to us in the shop in Germany, to other points of sale for batteries or to the public waste disposal authorities (örE). For other countries, please refer to relevant local regulations on battery disposal.