... .6v Specifications Type :Lithium battery Dimension with tubeNominal Max. Diameter(mm)Height(mm)Capacity(mA) (10mA-2.0v) VoltageConstant Current Pulse CurrentModel: ER34615M ... , 2/3AA, 2/3A, 4/3A, 4/5SC,1/2C, 2/3C,1/2D, 4/5D, N, F, etc. Others: Lithium polymer, 9V, Lithium 18650,18490... Lithium ER34615 ...