The energizer universal battery charger is the ultimate energizer family battery charger it charges all five of the most popular battery sizes aa aaa c d and 9v a must have for any familyrrextremely versatile it charges aa aaa c d and 9v rechargeable batteriesreasy to read battery gauge shows when batteries are fully charged and how full they arerfast safe charging from 3 to 5 hoursrpower source mains chargingrthe smart choice also energy star certifiedrrled indicator for 9vrlcd i