Customer reviews from duracell.com
Duracell - MN21B4PK 12V 21/23 Specialty Alkaline Batteries (4/Pack)
Average customer rating
4.9
(16 Reviews)
Rating breakdown 16 reviews
5 Stars
14
4 Stars
2
3 Stars
0
2 Stars
0
1 Star
0
Customer Reviews for Duracell - MN21B4PK 12V 21/23 Specialty Alkaline Batteries (4/Pack)
Customer Rating
5
The best
on September 24, 2025
Posted by: ana-mariar70
The product demonstrated excellent performance, providing sustained functionality for my children's toys over an extended period. Very well packaged
Written by a customer while visiting influenster.com
Customer Rating
5
Durable
on September 16, 2025
Posted by: chelseak5823
While these ones may be a little pricey they tend to always do the job! They always last longer than other battery brands I have used and always work to the best of the ability I need!
Written by a customer while visiting influenster.com
Customer Rating
5
these are definitely worth
on August 19, 2025
Posted by: tiagos12
I bought the MN21/23 alkaline batteries for my garage door opener and they have been working great so far. the power seems strong and consistent. My old battery died pretty quickly, but this one has been holding up well for weeks Its nice not having to stand outside clicking the opener multiple times just to get it to work.
Written by a customer while visiting influenster.com
Customer Rating
5
Reliable, long-lasting battery power that’s worth
on November 2, 2025
Posted by: sharafiev_1300
The Duracell MN21/23 Alkaline Battery delivers consistent performance and long-lasting durability. I’ve used it in small devices like remotes and key fobs, and it holds power for months without dropping off. The packaging is sturdy and easy to open, protecting the batteries well. It’s compatible with most of my devices and offers great value considering how long each one lasts. You can always rely on Duracell for dependable power.
Written by a customer while visiting influenster.com
Customer Rating
5
Battery life better than other brands
on November 18, 2025
Posted by: yanad45_9548
The only batteries that I use for many years. The battery life seems to last longer than other batteries. Power and packaging seems just like other brands.
Written by a customer while visiting influenster.com
Customer Rating
5
Duracell batteries lasted for months in my TV remo
on December 4, 2025
Posted by: bridgetted10_7252
I used Duracell batteries in my TV remote that gets used daily, and they lasted much longer than the previous brand I had. The power stayed strong with no signs of fading or weak performance. I didn’t have to replace them for months, which was a huge plus. Overall, they were reliable, long-lasting, and worth the price.
Written by a customer while visiting influenster.com
Customer Rating
5
Great option.
on December 8, 2025
Posted by: felixr35_3152
I only buy these for my remotes because the Reliability is unmatched; they always work when I need them. The Duration is excellent, and the Power is strong—a definite upgrade over cheaper batteries!
Written by a customer while visiting influenster.com
Customer Rating
5
This battery has reliability and long life in smal
on December 18, 2025
Posted by: innam43_8533
This battery last significantly longer than cheaper brands and keep devices powered for months without issues. They are not the cheapest, but the quality and durability worths the price since its unusual size. It’s kind of hard to find them so make sure you’re ordering the correct type.
Written by a customer while visiting influenster.com