Perfect for everyday power, the Rayovac carded AAA Alkaline Batteries, 16 pack, are handy to have around the house, ready to power your clocks, flashlights and more. The mercury-free formula is better for the environment. Rayovac lasts as long as other brands, has a 100% money-back guarantee and is proudly made in the USA. The pack is guaranteed fresh for 10 years, and there is a "best used before" date on each battery.