Duracell vs. Energizer: Which Battery Is Best?

Batteries are an important part of keeping many gadgets running smoothly and making life easier for everyone. In the battery industry, Duracell and Energizer are both regarded as leaders. Both offer excellent batteries that are composed of high-quality materials and are long-lasting. However, most people go for only one brand at a time, so which of these two batteries is the best?

For most consumers, the choice between Energizer and Duracell boils down to price. Energizer and Duracell have comparable merits and disadvantages, with the most noticeable price difference. There is almost no distinction in performance or storage life. Both brands offer AA, AAA, 9V, and rechargeable batteries.

About Duracell

Duracell started out making batteries for military equipment, but they expanded to develop batteries for various products as time went on. The invention of the flash camera by Kodak in the 1950s necessitated a different battery size; hence Duracell invented the AAA battery. However, Duracell was not officially introduced as a trademark name until 1964.

About Energizer

The brand energizer was founded in 1896 and was called Eveready Battery Company. Ralston Purina purchased Eveready in 1986, and the company was renamed Energizer Holdings in 2000. Since then, Energizer Holdings has been producing Energizer batteries and Ray-O-Vac, Varda, and Eveready batteries.

pile of duracell and energizer batteries

Comparison of Duracell and Energizer batteries

FeatureDuracell batteriesEnergizer batteries
Market share29%25%
Available sizesAA, AAA, C, D, 9V, Miniature9V, AA, AAA, Multi Cell, Lantern, C, D, F, J, N
pricesMore costly than EnergizerCheaper in cost per battery than Duracell
ManufacturerProcter & GambleEnergizer Holdings, Inc.
Shell size10 Years (5 Years for 9V)10 Years for all
Sealing technologyDuralock power preservePowerseal
MaterialSteel, Zinc, ManganeseSteel, Zinc, Manganese, Potassium, Graphite

Duracell vs. Energizer: Temperature effects

Temperature diminishes battery life, which is why batteries behave differently in extreme temperatures. As a result, at low temperatures, your gadget may not last as long as it does at room temperature or higher temperatures. Also, the Chemicals utilized within the battery are affected by high temperatures when exposed for a long period. Certain chemical compounds may produce leakage, resulting in diminished performance. For example, in low temperatures, Duracell batteries output a higher voltage than Energizer batteries. As a result, they can be utilized in harsh conditions. On the other hand, Energizer batteries have a higher voltage than Duracell batteries under high temperatures. It means they’re good for gadgets that require a lot of energy.

Duracell vs. Energizer: Leakages

All batteries are vulnerable to leakage. Premature battery leaking can be caused by various circumstances, including battery exposure to severe temperatures or incorrect storage. Both brands have been tested under difficult situations, including high temperatures and humidity, and no differences in leak rates have been discovered. Therefore, both will last about the same amount of time in real-world use before they need to be replaced.

Duracell vs. Energizer: Environment impact

Ever since the mid-1990s, after the push to reduce pollutants produced by batteries, which produced hazardous waste such as toxic metals like mercury, lead, arsenic, and toxic chemicals known as dioxins, battery manufacturers have been self-aware of their impact on the environment. Rechargeable batteries are better for the environment because they may be used numerous times before being disposed of or recycled. Both battery manufacturers provide advice on recycling or disposing of dead batteries on their websites. Both brands have eliminated the use of hazardous mercury in their battery production, making them far safer for the environment. Energizer employs the Rechargeable Battery Recycling Corporation, while Duracell supports the Call2Recycle service. Both brands appear to do their part to keep the environment safe.

Duracell vs. Energizer: Market Dominance

Duracell was the first company to gain a household name in the 1960s, and it went public in 1989. Although the Eveready Battery Company was founded in 1896, the Energizer brand was founded in 1980. Duracell dominates the market in terms of brand awareness. It has roughly 29 percent in the United States, whereas the Energizer brand has a market share of around 25 percent. So, while Energizer has been around longer thanks to Eveready, Duracell is the more popular brand.

Duracell vs. Energizer: Technologies used

Both brands use patented technology to seal and safeguard the battery from leakage. Duracell’s Duralock Power Preserve Technology uses only natural substances and triple corrosion prevention to ensure that the battery’s power lasts for ten years. The Ultra, Coppertop, Rechargeable Hearing Aid, and Coin Button cells all employ this technology. The Ion Core technology also lets rechargeable batteries hold a charge for longer than before. Furthermore, The Energizer’s MAX product line batteries use Power Seal Technology which can keep power for up to ten years. Their rechargeable battery lineup is also designed to deliver additional power. The Recharge Power Plus range is recognized for providing longer-lasting power with each charge.

Duracell vs. Energizer: Life test

Compared to other competitor brands on the market, both are excellent at providing extended service life. However, the mAh (milliampere-hours) rating of these batteries varies. If the demand remains constant, a battery with a higher mAh capacity can power a gadget for longer. Higher mAh batteries, on the other hand, are bulkier and larger. For example, Energizer AA batteries have a capacity of 2,200 mAh, while Duracell AA batteries have a capacity of 2,000 mAh. In addition, Duracell batteries have survived longer in tests on flashlights, while Energizer has been found to last longer in clocks.

Duracell vs. Energizer: Prices

With batteries, price is also a significant consideration. Customers are always looking for methods to save money without sacrificing quality. Duracell’s battery pricing is among the costliest on the market almost everywhere. Both brands run deals and offer bulk purchasing, although Duracell seems to be on the higher end of the price range.

Some of the best Duracell and Energizer batteries

Energizer batteries

  • Energizer Max AA Batteries: These Max Alkaline batteries are unrivaled for powering low-current gadgets. People prefer it to other brands because there has never been a single incident of leakage or rusting. There are a variety of pack sizes available. People buy it in large quantities because it has a 50 percent longer life span than regular batteries. In addition, the cells can hold a charge for up to ten years. Keep them on hand in case of an emergency, and you’ll have the backup you need whenever you need it.
  • Energizer Max AAA Batteries: The Powerseal function on these Energizer batteries is admired. As a result, the cells do not leak in normal situations, ensuring the safety of the gadgets. Even fully charged batteries left in electronics for two years will not harm them. Also, in extreme weather or frequent use, your devices remain safe. There is no other brand on the market that can match this level of dependability. In addition, it has one of the best performances and can be used by Toys, remote controls, digital cameras, and other important gadgets. 
  • Energizer Max D Batteries: With these Energizer Max Alkaline cells, medium-sized devices that use D-size batteries work well for longer periods. The battery performs brilliantly and uses protective technologies, so you’ll never have to be concerned about acid leaks or damage.

Duracell batteries

  • Duracell CopperTop AA Alkaline Batteries:  these batteries can be used with many low-drain devices that require AA batteries. It’s also feasible to keep them in stores for up to ten years and get the same results. As a result, CopperTop AA Alkaline batteries are quite popular with customers. The long shelf life and strong brand value are two factors that contribute to its reputation.
  • Duracell CopperTop AAA Alkaline Batteries: These batteries, like AA batteries, are in high demand. Because of their high-quality construction and cutting-edge technology, these Alkaline batteries are extremely safe and dependable. A Duracell pack is a fantastic choice as it is a solid pair of batteries for several commonly used electrical gadgets. In addition, Duracell offers superior performance to its competitors’ batteries thanks to innovations in the Alkaline Manganese Dioxide electrochemical cell.
  • Duracell CopperTop 9V Alkaline Batteries: Overall, the efficiency and build quality are excellent, and they can compete with any other battery. The storage life of these 9V batteries is half that of the previous two types; however, it is commonly used more than their competitors. In addition, they are fully sealed to prevent leakage during long storage or use.


Energizer and Duracell are two of the world’s best and the leading battery producers. Both batteries have amazing qualities, which has made them famous among consumers. The batteries have different policies and use different technologies but ultimately deliver quality products. However, there is almost no difference in which batteries last or perform the best. Duracell appears to have the advantage in terms of power longevity. For some, the longer storage life of Energizer may be the reason they chose that brand. In addition, Energizer is cheaper than Duracell, which could be the deciding factor in the end. Based on your needs and budget, you can go for either battery as they offer superb performance and a durable lifespan.

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