Rockwell 12-volt RW9400 Battery Charger120 voltsCharges 12 Volt batteriesCharging current 3.0 ARated power 45 WCharging time 30 mins 15 mins to 75Charger detects weak batteries7 - Rockwell RW9300 12-volt batteriesCharger works and all batteries hold chargeThese items were for a Rockwell oscillating tool that stopped workingWill not separate