Duracell Coppertop D batteries (x4)
(59 reviews)
The largest of the cylindrical batteries: Duracell Coppertop D gives maximum runtime to heavy-duty flashlights, emergency radios and big toys.
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Characteristics
- Voltage: 1.5V (alkaline)
- Format: D
- Pack: Pack of 4
- Storage: Up to 10 years
- The high-runtime D battery for power-hungry devices
Detailed overview: Duracell Coppertop D alkaline battery
Duracell Coppertop D batteries are 1.5-volt alkaline batteries in the largest common cylindrical format. Their generous size gives them high capacity and runtime, which is exactly why they are the go-to choice for the most power-hungry devices in the house.
They are typically used in big flashlights, portable lanterns and floodlights, emergency weather radios, powerful portable radios, bulky toys, boomboxes and various household devices that demand a lot of energy. On these heavy-drain uses, their large volume lets them run far longer than smaller batteries could.
Sold here in a pack of 4, in their original Duracell packaging, these batteries are guaranteed to hold their charge for up to 10 years in storage, a real asset for an emergency kit you hope to rarely open. When a storm knocks out the power, batteries that have been sitting untouched for years still need to work, and that is exactly what this guarantee is built for.
Like all alkaline batteries, the D cell is single-use and should be recycled at end of life through a battery collection program. Long-lasting and dependable, this Duracell Coppertop D pack is the benchmark choice for any device that needs a large, high-runtime 1.5V cylindrical battery.
Our tester's review: Pierre Freysinger
D batteries do not get bought often, but when the power goes out and a heavy-duty flashlight or an emergency weather radio needs to actually work, this is not the moment to gamble on a cheap brand. We keep a pack of these Coppertop D cells in a storm kit specifically for that reason, and pulling them out after sitting untouched for over a year, they still powered a lantern at full brightness for the whole evening. That 10-year storage guarantee is the whole point of buying D batteries in the first place, since most people are not swapping them regularly the way they would AA cells. Beyond emergency gear, the large format also shows up in bulky toys and boomboxes, and the extra volume genuinely translates into longer runtime compared with smaller cells doing the same job. The pack of 4 is the standard amount for most single-device needs, whether that is one big flashlight or a battery-hungry radio. There is nothing flashy about a D battery, and that is exactly the point: reliable, long shelf life, ready the one time a year it actually matters.
Frequently asked questions: Duracell Coppertop D alkaline battery
D is the largest common cylindrical 1.5V alkaline battery size, bulkier than a C battery and used in devices that need serious runtime, like heavy-duty flashlights and emergency radios.
Big flashlights, lanterns and floodlights, emergency weather radios, bulky toys, boomboxes and household devices that are very power-hungry.
No, this alkaline battery is single-use. Replace it once discharged and recycle it through a battery collection program; rechargeable D-size cells exist in other product lines.
Duracell guarantees these Coppertop D batteries keep their charge for up to 10 years in their original packaging, which makes them an excellent choice for an emergency kit or backup supply kept in reserve.
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Published on 02/09/2026