Overview Model # 529 Store SKU # 1000118718 The Energizer Alkaline 6-Volt Battery is specifically formulated to provide long-lasting and dependable power for your everyday safety and security devices, such as smoke alarms. Perfect for all your home and safety and security devices Long lasting power and a 7-year shelf life Made with no added mercury to protect the environment Dependable and long-lasting power For use with security and safety devices, such as smoke alarms Operating Temperature: 0°F - 130°F Show More