Duracell Plus AA batteries offer up to 150% extra life for everyday devices, with patented power boost actives, a unique blend of lithium & nickel, for lasting performance. With sustainable packaging and up to 10 years of storage life. (Longevity performance compared to Minimum Average Duration of the latest IEC AA high drain application test. Results may vary by device or usage pattern). Perfect for powering everyday and regularly used devices, motorised toys, flashlights, digital audio devices, etc. Tested for voltage and leakage to ensure safety, Duracell Plus is the ultimate everyday battery. Unused batteries last up to 10 years in ambient storage. A superior nylon top closure helps prevent these batteries from leakage.