Alkaline D Batteries Provide Premium Performance And Are Ideal For Your Medium-Drain Devices, Including Battery-Operated Toys, Flashlights And Led Flashlights. They Are Suited To Low-Drain Devices When Changing Batteries Is Difficult Or Inconvenient. High-Quality Materials Ensure Dependable, Long-Lasting Power For Portable Electronics. Mercury-Free Manufacturing Helps Minimize Their Environmental Footprint. With Ready Power Technology, Batteries Stay Fresh Up To 10 Years. This Technology Helps Control The Internal Stability Of The Battery With Improved Electrolyte Utilization, Refined Corrosion Inhibitors And Ultra-Pure Materials For Long-Term Stability. The Battery Closure Offers A Tight Seal For Maximum Reliability..