Technical data: Capacity: 2000mAh / 48.8Wh voltage: 22.2 volt cell type: Li-ion brand: Patona replaces the following original battery type: 917083-01 The battery is suitable for the following models: DC30, DC31 Animal, DC34, DC34 Animal, DC35, DC35 (Type B) Multi Floor, DC43, DC43H Animal Pro, DC45, DC45 Animal Pro, DC56, DC57 The Patona Premium Akku series stands for top quality at fair prices. 100 % compatible with the original Dyson battery by mass-made fit including overload and short-circuit protection.