Which lasts longer in a device, Energizer Max or Duracell Coppertop?

On paper they are close: 1155 mAh for the Energizer and 1.15 Ah for the Duracell. Real run time depends on the device and drain rate, so expect similar performance.

Is the Energizer 24-pack worth it over the Duracell 4-pack?

Yes if you will use the cells within the shelf life. At $18.75 for 24 versus $5.25 for 4, the Energizer costs about 78 cents a battery against about $1.31.

Which has the longer shelf life?

Duracell states a 12-year storage guarantee. Energizer lists 5-10 years for Max AAA.

Are these the same size?

Yes. Both are AAA (LR03/R03) cells at 44.5 mm tall and 10.5 mm across, about 11 g each.

Can I use either in a device that specifies one brand?

Yes. Both are 1.5V AAA alkaline cells, so either works in remotes, toys, clocks and flashlights. Neither is rechargeable.

Which is better for cold or hot conditions?

Duracell publishes an operating range of -20 C to 54 C. Energizer does not list one for Max AAA, so Duracell gives you a stated limit.

Energizer Max AAA Batteries 24 Pack vs Duracell Coppertop AAA Batteries

Both are standard AAA alkaline cells with nearly identical specs: 1.5V, about 1.15 Ah, 44.5 mm tall, 11 g. The real difference is pack size and price per cell. The Energizer 24-pack is $18.75 at Battery Junction as of November 6, 2026, about 78 cents a battery. The Duracell 4-pack is $5.25 at The Home Depot as of November 6, 2026, about $1.31 a battery. Buy the Energizer box for volume and shelf stock; buy the Duracell 4-pack for a small top-up.

Today the Duracell Coppertop AAA Batteries costs $13.50 less at its best price.

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