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Duracell DURMN21B4PK 21 12V Specialty Alkaline Battery – Long-Lasting Battery – 4 Count

4.5 out of 5 stars 18,911 ratings
鶹's Choice highlights highly rated, well-priced products available to ship immediately.
鶹's Choice
$10.68 with 10 percent savings $2.67 per count
Was: $11.88
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Purchase options and add-ons

Number of batteries 4 A batteries required. (included)
Brand Duracell
Battery cell composition Alkaline
Battery capacity 17
Recommended uses for product Car Alarm,GPS

About this item

  • Duracell 21 Batteries: The 12V alkaline battery is designed for use in your specialty devices, including remote controls, car alarms, key fobs, and security systems.
  • Long Lasting Power: Duracell specialty alkaline batteries are engineered for long lasting performance.
  • #1 Trusted Battery Brand: This Duracell 21 12V Specialty Alkaline Battery is equivalent to 8LR50, A23, and MN21.
  • Guaranteed for 5 years in Storage: Duracell 21 12V Specialty Alkaline batteries are guaranteed for 5 years in storage.
› See more product details

Competitively priced item

4.5 out of 5 stars (33030)
CDN$ 7.99

Product details

  • Batteries ‏ : ‎ 4 A batteries required. (included)
  • Is discontinued by manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 1.12 x 8.89 x 8.89 cm; 30 g
  • Date First Available ‏ : ‎ Sept. 20 2012
  • Manufacturer ‏ : ‎ Duracell
  • Place of Business ‏ : ‎ EDISON, NJ, 08817 US
  • ASIN ‏ : ‎ B00BC3HTE4
  • Item model number ‏ : ‎ DURMN21BPK -SPR
  • Department ‏ : ‎ Unisex-Adult
  • Customer Reviews:
    4.5 out of 5 stars 18,911 ratings

Frequently bought together

Duracell DURMN21B4PK 21 12V Specialty Alkaline Battery – Long-Lasting Battery – 4 Count
This item: Duracell DURMN21B4PK 21 12V Specialty Alkaline Battery – Long-Lasting Battery – 4 Count
$10.68($2.67/count)
Get it by Tuesday, Jul 8
Only 4 left in stock.
Sold by Sky Line Inc. and ships from 鶹 Fulfillment.
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WARNING:

CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

Product description

Duracell Specialty Alkaline batteries offer reliable, long lasting power, so you can be confident these batteries will be ready when you need them. They’re designed for use in remote controls, car alarms, key fobs, and security systems.

Top Brand: Duracell

Highly Rated
100K+ customers rate items from this brand highly
Trending
100K+ orders for this brand in past 3 months
Low Returns
Customers usually keep items from this brand

From the manufacturer

Duracell #1 Trusted Battery Brand: Duracell Specialty Batteries
Specialty batteries with compatible devices: watch, camera equiptment, thermometer, flashlight

Features & Benefits

Long-Lasting Power

Dependability You Can Trust

#1 Trusted Battery Brand

Customer reviews

4.5 out of 5 stars
18,911 global ratings

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Customers say

Customers like the quality, functionality, and size of the battery. They mention it seems solid, works well, and is perfect for their devices. However, some customers have mixed opinions on the battery life.

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QualityFunctionalitySizeBattery life
9 customers mention "Quality"9 positive0 negative

Customers are satisfied with the quality of the battery. They mention it seems solid and Duracell is tops in their class.

"Good ." Read more

"...in our garage door openers, and I couldn't be happier with their quality and impressive battery life...." Read more

"...No complaints. Duracell is a reliable brand, so I expected it to last, and it seems to be living up to that...." Read more

"Not much to say here. They are high quality batteries from a reputable manufacturer." Read more

4 customers mention "Functionality"4 positive0 negative

Customers are satisfied with the functionality of the battery. They mention it works very well and their garage door is working again.

"...I have extra in case I need it. And my garage door is working again" Read more

"Batteries were fresh and work perfectly! Their quality seems good. It is what you expect from Duracell!" Read more

"Well packaged and will serve their purpose well...." Read more

3 customers mention "Size"3 positive0 negative

Customers are satisfied with the size of the battery. They mention it's exactly the size they needed and fits their devices perfectly.

"...Thanks so much for getting me just the right sized ones and so quickly too!" Read more

"PErfect fit for my device !" Read more

"perfect exactly the size i needed for my product" Read more

8 customers mention "Battery life"5 positive3 negative

Customers have mixed opinions about the battery life of the product. Some mention it's a bonne batterie, while others say it's short and the charge gradually dropped.

"...When it comes to dependable batteries for your electronics, Duracell is the clear choice!" Read more

"...As I held the tester's contact probes to the battery, the charge gradually dropped, and continued to do so...." Read more

"These are good batteries..." Read more

"Great Longevity..." Read more

Best Before Mar 2026.
5 out of 5 stars
Best Before Mar 2026.
Ordered Yesterday. Delivered today. After reading some negative reviews after buying I was happily surprised that all 4 batteries had 12.61 volts and best before Mar 2026. Great deal for the price.
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Top reviews from Canada

  • Babli
    5.0 out of 5 stars Good
    Reviewed in Canada on June 14, 2025
    Verified Purchase
    Good .
    Helpful
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  • bear
    5.0 out of 5 stars great
    Reviewed in Canada on April 23, 2025
    Verified Purchase
    excellent
    Helpful
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  • Amanda Davies
    5.0 out of 5 stars Great for garage door openers!
    Reviewed in Canada on January 15, 2025
    Verified Purchase
    This 4-pack is a fantastic deal! I purchased these to replace the batteries in our garage door openers, and I couldn't be happier with their quality and impressive battery life. When it comes to dependable batteries for your electronics, Duracell is the clear choice!
    Helpful
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  • Benoit Coiteux
    4.0 out of 5 stars Très bien
    Reviewed in Canada on June 21, 2025
    Verified Purchase
    Bonne piles
    Helpful
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  • jack
    5.0 out of 5 stars très bien
    Reviewed in Canada on March 5, 2025
    Verified Purchase
    bon achat
    Helpful
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  • creid
    5.0 out of 5 stars Nice
    Reviewed in Canada on September 26, 2024
    Verified Purchase
    Just what I ordered and delivered quickly
    Helpful
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  • Peter Dunn
    5.0 out of 5 stars These are good batteries
    Reviewed in Canada on September 28, 2021
    Verified Purchase
    These are standard for various types of remote controls. I live in a small town, and when I could not find these locally, I ordered them from 鶹 Prime. I needed re

    A replacement battery asap and could not wait for my next trip to the city. They arrived in less than a week.
    Helpful
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  • Jet1
    1.0 out of 5 stars Maybe 1 year shelf live?
    Reviewed in Canada on May 8, 2025
    Verified Purchase
    Received them on time in may 2025. Date states best before 2026. I checked the Voltage with a needle while in package. One battery had 11.5 Volt others had 12.2Volt. A new Battery I bought locally had 12.4Volt. I returned all.
    Helpful
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Top reviews from other countries

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  • chv
    5.0 out of 5 stars ras
    Reviewed in France on March 22, 2023
    Verified Purchase
    ras
    Report
  • Cayla
    5.0 out of 5 stars Great Value and Reliable Power
    Reviewed in the United States on June 14, 2025
    Verified Purchase
    I needed these for a couple of small remotes, and this 4-pack was a great deal compared to buying singles at the store. As expected from Duracell, the batteries are reliable and long-lasting. They come well-packaged with a decent expiration date, so I know I can keep the extras on hand for future use. Definitely worth it if you use these types of batteries regularly. Highly recommend!
    Report
  • Cumple las normas de power en mi PC. Gracias
    5.0 out of 5 stars Exelente
    Reviewed in Mexico on November 13, 2024
    Verified Purchase
    Justo a tiempo y confiables por la marca para usar en mis controles , gracias
    Report
  • Rui Reckelberg
    5.0 out of 5 stars Boa compra
    Reviewed in Brazil on September 13, 2024
    Verified Purchase
    Tudo certo!
    Report
  • Donald W.
    5.0 out of 5 stars Fixed my remote to my fan!
    Reviewed in the United States on June 29, 2025
    Verified Purchase
    Price was right on batteries were just what we needed!
    Report