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