Energizer Ultimate Lithium AA batteries deliver the world's longest-lasting power in AA format, holding the Guinness World Records title for performance. This 18-pack features advanced lithium iron-disulfide (Li/FeS2) chemistry providing 3000mAh capacity with a stable 1.5V output throughout the entire discharge cycle.

These batteries perform reliably in extreme temperatures ranging from -40°F to 140°F (-40°C to 60°C), making them ideal for outdoor equipment, emergency kits, and devices used in harsh environments. They weigh 33% less than standard alkaline batteries at just 0.5 oz (14.5g) each, reducing overall device weight for improved portability.

The advanced leak-proof construction protects valuable electronics from corrosion and damage. With up to 20 years of storage life, these batteries maintain their charge and remain ready when needed. They deliver up to 9 times more photos in digital cameras compared to standard alkaline batteries and provide 2.5 times higher lifetime for high-current discharge applications. Ideal for digital cameras, tactical flashlights, wireless sensors, GPS units, smart home devices, outdoor surveillance systems, and other mission-critical gear.