Voltcraft cm2016 6 slot universal battery charger nimh nicd and nizn batteries voltcraft 202016 p the voltcraft cm2016 is a 6 slot universal battery charger for nimh nicd and nizn batteries it has been designed to be the optimal combination battery charger and diagnosis station p p up to four aaa aa c or d sized batteries and two 9v batteries can be charged individually or in a combination p p in automatic mode the charging current varies with the capacity of the battery in ni