Get dependable long-lasting power from Duracell Coppertop batteries. Engineered to power all your household devices from remote controls to portable devices. With Duralock Power Preserve Technology you can be assured they will stay charged for up to 10 years even in storage. Duralock power preserve technology Guaranteed for up to 10 years in storage Dependable long-lasting power for devices such as toys flashlights smoke detectors and more Alkaline battery with 1.5V Packed in easy to open non retail packaging