This pack of 4 Duracell Procell AA Alkaline Batteries features stronger and longer lasting batteries than traditional alkaline batteries. These high-end batteries can save you money since they outlast most other power sources and negate the need to constantly replace standard "AA" batteries.
Another advantage of Procell batteries is that each battery, not just the packaging, is stamped with the "Use Before" stamp. You'll notice that the particular dates are far beyond what normal "AA" batteries offer.
Operating: 0.6 - 0.75V