With this Li-Ion battery, you are acquiring a quality product. The battery is 100% identical to the original battery. All batteries are manufactured according to the highest European quality standards and are characterized by extreme durability. Additionally, Patona batteries have the highest cycle stability, which means a high number of possible charge and discharge cycles. The low self-discharge of the batteries ensures minimal energy loss when not in use. The compatible replacement batteries come with all the electronic safety features of the original batteries and can naturally be charged with your original power supply.