Duracell Plus 9v batteries are alkaline batteries ideal for powering all your everyday devices. Duracell Plus 9v has up to 100% extra life.Duracell batteries that go unused can stay powered up to 5 years in ambient storage. These batteries are Duracell’s recommendation for everyday devices, such as digital cameras, photo flash, toys or boomboxes, and of course are great fit for the regularly used devices as flashlights, portable game controllers, shavers, toothbrushes and any other.