Customer reviews from duracell.com
Duracell - MN21B4PK 12V 21/23 Specialty Alkaline Batteries (4/Pack)
Average customer rating
4.9
(20 Reviews)
Rating breakdown 20 reviews
5 Stars
18
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
Fab and reliable!
on February 4, 2026
Posted by: Yael R
Work well and last long. Packaging is easy to open, they always work consistently, no issues with overheating or leakage. They are my go to battery brand!
Written by a customer while visiting influenster.com
Customer Rating
5
Best battery brand out there
on February 4, 2026
Posted by: mallory R
Best battery works very well and lasts for a long time. Very reliable and helps throwing onto any battery. Powered source made easy with easy activation does not leak.
Written by a customer while visiting influenster.com
Customer Rating
5
Durable
on February 17, 2026
Posted by: naazJ
One of the longest lasting battery brands out there, very reliable and come in huge packs depending on the store. Would recommend for power needs
Written by a customer while visiting influenster.com
Customer Rating
5
Dependable small alkaline battery with long consi
on March 3, 2026
Posted by: PhungN
The Duracell MN21 Alkaline Battery delivers reliable long lasting power for small electronics like key fobs remote controls and security devices Its compact size fits easily into that require extra shelf life Duracell’s quality construction gives consistent performance you can count 23 on
Written by a customer while visiting influenster.com