Metabo 18V 5.5Ah LiHD Battery Twin Pack

LiHD battery packs for ultimate performance and extremely long application with minimal temperature generation.
Ultra M technology: Intelligent battery management for long-lasting battery packs.
Patented “AIR COOLED“ charging technology.
Permanent Electronic Single Cell Protection (ESCP) when charging, for particularly long life.
Processor-controlled charge and discharge management.
Capacity display with almost no self-discharge.