Mini cordless screwdriver series black decker kc battery voltage 36 v battery capacity 11 ah number of batteries with 1 battery type of battery li ion battery management internal battery gear 1 speed tool holder 14 inch internal hexagon idle speed max 180 rpm max drehmoment hart 77 nm weight 036 kg integrated torch charging time 720 min special features rightleft rotation soft handle included in delivery charger 1 battery