Pack Quantity: 10 | LR20 | AA | 1.5VProcell Alkaline Constant Power D industrial batteries are ideal for powering low drain professional devices which require constant current over a long period of time such as torches and sensors.Longer lasting power in low drain professional devices, vs. prior Procell D batteriesAlkalinePackaged for professional use - date coded for easy inventory managementAlso available in AA, AAA, C, and 9V sizes