LiHD battery packs offer maximum performance and extremely long usage with minimal temperature development. The Ultra-M technology ensures intelligent battery management for long-lasting battery packs. The patented "Air Cooled" charging technology guarantees efficient charging. Continuous electronic monitoring of individual cells during the charging process contributes to an exceptionally long lifespan. The processor-controlled charge and discharge management increases efficiency. A capacity indicator allows for continuous monitoring of the battery status. These battery packs are characterized by a long shelf life with almost no self-discharge.