These Duracell Procell Constant AA Batteries provide reliable power performance and can operate in temperatures ranging from -20 to 54 degrees Celsius. The batteries are ideal for torches, clocks, remote controls, wireless mouse and keyboards as wells as other everyday applications. The batteries offer excellent resistance to corrosion. Designed to meet all major quality, safety and environmental standards. This pack contains 10 batteries. Size: AA Ideal for torches, clocks, remote controls, thermostats, wireless mouse and keyboards as wells as other everyday applications Can operate in temperatures ranging from -20 to 54 degrees Celsius Reliable Performance Excellent resistance to corrosion Designed to meet all major quality, safety and environmental standards Safety: IEC 60086-5 ANSI C 18.1M, Part-2 EU Battery Directive Quality: ISO 14001 and 9001, Duracell World Class Continuous Improvement Program Pack of 10