Conrad energy alkaline manganese 9v battery conrad energy 658014 p a 9v or pp3 battery that is used in smoke detectors telephones microphones and a wide range of other devices that need a higher operating voltage than the 1 5v normally delivered by an alkaline battery p p this 9v battery is supplied in standard form the battery is conrad branded giving you performance and reliability with the conrad reputation p conrad energy 658014 alkaline manganese 9v battery