This battery and charger set from Metabo is the ideal kit for newbies, or to build up your kit The Metabo 685051000 basic set contains 2 x Li-Power 18V 5.2Ah batteries and the ASC 145 quick charger. The batteries have air-cooled technology and electronic cell protection for particularly long life and the ASC 145 charger will charge all LiHD, Li-Power Compact, Li-Power Plus and Li-Power Extreme battery packs. Battery Features: Ultra M technology: Intelligent battery management for long-lasting battery packs  Patented air-cooled charging technology and Electronic Single Cell Protection (ESCP) for particularly long life Capacity display with almost no self-discharge 100% compatibility with all 18V machines and chargers from Metabo ASC 145 Features: Charge time approx. 30 minutes at 2.0Ah For charging all LiHD, Li-Power Compact, Li-Power Plus and Li-Power Extreme battery packs \"Air-cooled\" function cools the battery packs down to the required charging temperature and keeps it constantly maintained at optimum temperature for long life Specification: Type of battery pack: Li-ion Battery pack voltage: 18 V Battery pack capacity: 2 x 5.2Ah