Power your household with Rayovac High Energy Alkaline Batteries. Engineered for long-lasting performance, these Rayovac batteries are ideal for the high use devices in your home, including flashlights, wireless mice, remotes and, smoke detectors, smart home devices and more. Rayovac rigorously tests its batteries to ensure they do what they say they'll do-plain and simple. These alkaline batteries are backed by a 12 Year Power Guarantee to last up to 12 years in storage (5 Year Power Guarantee for 9V). Each battery is made for dependable performance. For reliability in the devices you use each day, count on Rayovac batteries.