The Li-Ion battery of the renowned FIELDMANN brand represents a true leader in its category. It is compatible with all machines from the FAST POWER 20V battery series. This type of battery is characterized by extremely long life and endurance, and above all, balanced performance throughout its life cycle, along with low weight. The difference in performance between a fully charged and an almost discharged battery is minimal, which is especially appreciated during long-term work, whether in the garden or workshop. They operate without a memory effect, allowing you to charge them at any stage of discharge without compromising their capacity. Additionally, they have protection against overload, overheating, and deep discharge, as well as a minimal tendency to self-discharge, ensuring they are ready to deliver great performance even after a long period of storage.