The Li-Ion battery from the renowned FIELDMANN brand is a leader in its category. It is compatible with all machines from the FAST POWER 20V battery series. This type of battery is known for its extremely long life and endurance, as well as balanced performance throughout its life cycle, all while being lightweight. The difference in performance between a fully charged and an almost discharged battery is minimal, which is especially beneficial during long-term use, whether in the garden or workshop. These batteries operate without a memory effect, allowing you to charge them at any stage of discharge without compromising their capacity. They feature protection against overload, overheating, and deep discharge, along with a minimal tendency to self-discharge, ensuring they are ready to deliver great performance even after extended periods of storage.