Voltcraft cm410 intelligent nizn battery charger for aa and aaa cells voltcraft 202410 p the voltcraft cm410 is an intelligent nizn battery charger for aa and aaa cells it has been specifically designed as a charger for nizn aa aaa batteries but unlike other nizn chargers it also charges regular nimh and nicd batteries p p the cm410 automatically detects nizn batteries and applies a charging current especially developed for their higher voltage for nicd and nimh batteries 3 charging