Alkaline MN21 Batteries

Long-lasting Duracell Specialty MN21 alkaline batteries are reliable choice for your medical devices (thermometer, glucometer, blood pressure instrument), security devices (bank card reader, alarm transmitter), toys (small toys, children’s books) and other electronics (watch, calculator, laser pointer, anti-bark spray collar). Duralock  Technology preserves battery’s power up to 5 years in storage.

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Specialty, Coin and Button Batteries

  • Long-lasting power, guaranteed
  • Easy to find right size Easy to find right size
  • Duralock
  • Alkaline Battery Safety

Long lasting specialty, coin and button batteries

Duracell offers a wide range of specialty batteries (coins, buttons, and specialty batteries). Avaliable in a variety of sizes to power a wide range of devices, from electronics to medical devices and small toys.

Lithium coins:
2016, 2025, 2032
Buttons:
LR44, 364, 362/361, 371/370, 377
Specialty batteries:
MN21, CR2, 123, 223, 245
  • Long-lasting power, guaranteed

    The trusted Duracell quality is also available for all your coin, button and specialty batteries.

  • Easy to find right size

    Easy to find right size

    Quickly find the correct battery size for your device by checking the large battery size numbers on pack.

  • Duralock

    Did you know that most batteries lose power over time, even when not in use? Duracell’s Duralock technology preserves batteries’ power in storage before being used, guaranteed*

    *Up to 10-year guarantee for lithium coin and high power lithium batteries; up to a 5-year guarantee for specialty alkaline batteries; up to a 3-year guarantee for silver oxide button batteries.
  • Alkaline Battery Safety

    Keep batteries away from children. Warning sticker and engraved warning are included on batteries.

Duracell Specialty batteries

Industry name
Energizer name
Varta name
Previous
Industry name CR2032
Energizer name ECR2032
Varta name CR2032
Industry name LR44
Energizer name A76
Varta name V13GA
Industry name CR2025
Energizer name ECR2025
Varta name CR2025
Industry name CR17345
Energizer name EL123AP EL123A
EL123
Varta name CRV123A/V123
Industry name 3LR50
Energizer name A23
Varta name V23GA
Industry name -
Energizer name CR2
Varta name CR2
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Find the right battery for you

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Alkaline LR44 Batteries

Long-lasting alkaline battery you can trust.

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Silver Oxide Button 362/361 Batteries

Long-lasting button battery you can trust.

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Lithium Coin 2032 Batteries

Dependable and long-lasting lithium coin button battery.

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Read more about our batteries

POWERCHECK™ – Get The Most From Duracell Batteries

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How Are Batteries Made?

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Responsible Battery Use, Care And Disposal

Find out how to get the best out of a Duracell battery and learn how to properly recycle them.

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Frequently Asked Questions

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Can I mix different battery types?

No, different batteries are designed for different purposes. Mixing a lithium battery with an alkaline battery will not improve device performance. In fact, it will reduce performance and may even damage your device or cause battery leakage or rupture. As well, do not mix different battery brands within a device. Doing so will reduce overall performance and may also cause battery leakage or rupture. We recommend using the same type of batteries within a device.

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Can I charge other brands’ rechargeable batteries in a Duracell charger?

Yes, Duracell chargers will charge other NiMH AA or AAA batteries. However, Duracell cannot guarantee the quality, safety, or performance of other battery brands, so using Duracell rechargeable batteries is recommended.

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Can alkaline batteries be recharged?

Only batteries that are specifically labeled “rechargeable” should be recharged. Any attempt to recharge a non-rechargeable battery could result in rupture or leakage. We recommend that you use NiMH Duracell rechargeables. Paired with one of our different chargers, they can be recharged hundreds of times.

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