Energizer Max 9-Volt Alkaline Batteries 4 pk Carded

These alkaline 9 volt batteries provide dependable power to a wide variety of household electronics such as smoke alarms, carbon monoxide detectors and walkie talkies. Up to 5 year battery life of total usable life under typical usage patterns. A 4-pk. gives you backups. Delivers 50 to 100% more total energy than conventional carbon zinc batteries of the same size.