Energizer Alkaline Power D Batteries 12-Count — Long-Lasting D-Size Cells, 10-Year Shelf Life

Keep flashlights, clocks, toys, smart-home sensors and other D-size devices powered with this 12-pack of Energizer Alkaline Power batteries. Built for extended runtimes and shelf stability, these D cells offer reliable, ready-to-use power and store up to 10 years so you can prepare for daily use and unexpected situations. Energizer’s Alkaline Power line is available across common sizes, making it easy to standardize replacements around the home.

How long will these D batteries power my devices?

Runtime depends on the device’s power draw, but these Energizer Alkaline Power D cells are engineered for extended use in both low- and high-drain equipment. Expect longer operating times than standard carbon-zinc cells and solid performance in items like flashlights and portable radios.

• Optimal for devices that require steady, long runtimes
• Designed to outperform basic batteries in high-drain applications
• Suitable for intermittent use or continuous operation depending on device

Are these batteries safe to store long-term?

Yes. Energizer Alkaline Power D batteries are shelf-stable and can retain usable power for up to 10 years in storage, which helps ensure you have functional cells when needed. Store them in a cool, dry place and keep them in their original packaging until use to preserve shelf life.

• Guaranteed shelf life of up to 10 years
• Store at room temperature away from direct heat or moisture
• Leave in original pack to prevent terminal contact and corrosion

What devices are these D size batteries best for?

These D batteries are ideal for appliances and tools that need larger capacity cells, including flashlights, toys, clocks, some smart-home hubs, wireless speakers and certain medical monitors. They’re a common choice when longer runtime and reliable operation are important.

• Flashlights, lanterns and emergency lighting
• Toys, motorized gadgets and handheld radios
• Clocks, wireless speakers and select smart-home devices

What sustainability or material information should I know?

The pack includes recycled steel content in the cells (up to 10% in applicable sizes), reflecting Energizer’s steps toward incorporating recycled materials. Proper disposal or recycling of used batteries is recommended according to local regulations.

• Includes recycled steel (up to 10% in specified sizes)
• From Energizer’s Alkaline Power family across multiple sizes
• Recycle used batteries where facilities exist to reduce landfill waste

Who this is for: This 12-pack of Energizer Alkaline Power D batteries is a practical choice for homeowners, hobbyists and professionals who rely on dependable, long-lasting D cells. It suits anyone stocking emergency kits, powering high-capacity toys or maintaining devices that require sustained power. If you want a shelf-stable, widely compatible D battery with a proven brand behind it, this pack covers everyday needs and preparedness with straightforward performance.