Customer reviews from duracell.com
Duracell - Coppertop 9V Alkaline Battery, 4/Pack (MN16RT4Z)
Average customer rating
4.9
(370 Reviews)
Rating breakdown 370 reviews
5 Stars
331
4 Stars
38
3 Stars
1
2 Stars
0
1 Star
0
Customer Reviews for Duracell - Coppertop 9V Alkaline Battery, 4/Pack (MN16RT4Z)
Customer Rating
5
Great battery
on December 23, 2025
Posted by: ryanpenn1982_2176
One of the best and most reliable batteries out there. Not a huge need for 9V batteries much anymore but when I need one I go with Duracell every time.
Written by a customer while visiting influenster.com
Customer Rating
5
Best batteries
on December 24, 2025
Posted by: deee40_6369
Best batteries I used no leakage output is great capacity awesome strong good last you for long time doesn’t get salty or rusty quality vs price totally worth it
Written by a customer while visiting influenster.com
Customer Rating
5
Been on these since the 80’s
on December 29, 2025
Posted by: blakadonis_905
From race car tracks teddy ruxpin to remote control cars and smoke detectors. I grew up in the 80’s where to see if these 9 volt batteries still worked you would lick them.
Written by a customer while visiting influenster.com
Customer Rating
5
One and done battery packs.
on January 17, 2026
Posted by: rockyquat_7490
I’m in my last few batteries but these lasted me a good four years. We use these for certain electronics and these last really long. One machine I use them for is a electric muscle massager which uses a lot of power and it’s 60 minutes per session. One battery lasts me weeks with continuous use so that means their capacity is really high and they drain slowly. They also offer a guarantee that if you’re not satisfied with the product you can call the number in the back and I assume they’ll give you replacements. Although these packs can be expensive, it’s one of those purchases you buy one time and you’re set for years.
Written by a customer while visiting influenster.com
Customer Rating
5
Long lasting
on February 13, 2026
Posted by: marcye8_6098
Long lasting good quality battery. We use these for 9 volt requirements and they always work and last for months! Great battery, will continue to purchase.
Written by a customer while visiting influenster.com
Customer Rating
5
Duracell- dependable for many uses
on March 7, 2026
Posted by: MichelleL
Definitely my go to battery brand for use in all household items that require 9v. Only battery I use for smoke detectors. Duracell 9v was luckily still good in the battery pack in my recliner when I was laying in it when the power went out for many hours . Thankfully, I was able to get out of my recliner unscathed because of the Duracell batteries in the back up-power pack of the recliner! 😊
Written by a customer while visiting influenster.com
Customer Rating
5
Long lasting
on March 9, 2026
Posted by: SamK
I bought these batteries for fire alarms in my house and these are amazing. Their power is amazing and they run very long time. I didn’t see any leakage or buildup around them. These are easy to dispose and easy to store.
Written by a customer while visiting influenster.com
Customer Rating
5
Long lasting
on March 11, 2026
Posted by: MarieO
I use these for all the smoke detectors in my house . They are last longer than other brands. They fit perfectly in the smoke detectors. I’ve never had any issues with them.
Written by a customer while visiting influenster.com