10 reviews for Duracell Coppertop 9V Battery, 2 Count Pack, 9-Volt Battery with Long-lasting Power, All-Purpose Alkaline 9V Battery for Household and Office Devices

1. 

   5 out of 5

   Willee – January 23, 2020

   I replace my smoke and carbon monoxide detector batteries EVERY year on Jan. 1. Duracell is the only battery brand that I use. Duracell batteries have NEVER let me down or disappointed me in any situation. They have always been highly rated in Consumer Reports and that is a company whose recommendations I rely on and trust. Been a CR subscriber since 1993.

2. 

   5 out of 5

   Mike Bennett – February 22, 2020

   It is such a better quality battery from my own experience. I’ve had the other name battery,( the one with the bunny…) not last as long as the Duracells and I have yet to have any leak into the item using the batteries. And my hearing aid batteries are Duracell also, and they last quite a bit longer than that other battery. So, bang for the buck, my money is these batteries for things like smoke alarm/ detectors, and anything else where you need a good battery.

3. 

   5 out of 5

   Andrew C. – March 24, 2020

   Our smoke detector started its annoying beeping sound. It was time for its battery to be replaced. I decided to buy the battery here in Amazon instead of going to Walmart and pay a bit more for the same item. Why would I waste my time going to Walmart to buy battery when I can make the exact same purchase through here and save myself the drive time and gas?Work as expected. No more annoying beeping sound!

4. 

   5 out of 5

   Davids5900 – March 24, 2020

   How in the world can anyone be expected to write a review on battery “longevity” or “life” up front, and thus their “value for money” without waiting to see how long they last??? Anyone who does is lying to you. And then when they die, will I remember when I bought these and come back to modify this review? Right! I bought for the name, nothing more? And how long “should” they last? Would that not depend on the application that they are used in?

5. 

   5 out of 5

   JOANNE CATHERINE – March 25, 2020

   What can I saw about a 9v battery that hasn’t already been said? They’re odd little buggers–like, who decided to make them square? And why are batteries in general so expensive? I guess when you have a product the entire world needs, you can charge whatever you like. Anyway, now my smoke alarms have stopped that bloody chirping and hopefully I’ll get at least 2 years peace. As for “presentation” I liked how the 4 batteries were neatly packaged. Very clean and without all the gaudiness that just adds to the cost. The package designer is clearly a minimalist.

6. 

   5 out of 5

   V1 – April 15, 2020

   I bought these at the end of April, 2021, they expire in March, 2025, not even four years shelf life left. Amazon was the seller so I would have expected a higher turnover and newer batteries with at least 5 years left. No fault of the batteries themselves, they have always lasted a long time in whatever device I have used them in, so 5 stars for the batteries and maybe 3 for Amazon here. Disappointed, but still worth the higher price than the generics.

7. 

   5 out of 5

   TheDucks – May 15, 2020

   It seem weird to have to buy Basic Alkaline batteries from Amazon. But that is what I need to do to avoid overpriced, Premium batteries , that I use in my portable testers (batteries fail because the device is left on or stored for long periods of non-use. Super batteries offer no benefit).Duracell have been my GoTo battery since the 1960’s

8. 

   5 out of 5

   T. Vilberg – July 2, 2020

   My smoke detector required 9V batteries from a limited number of manufacturers and these were on the list. I needed 2 so bought 4 to be ready for next year.Oddly, using “non-listed” batteries didn’t work. I assume it is a voltage difference, but don’t know why these work and other 9V don’t, so I comforted myself that I could replace my two batteries and would have two more for the next 1am chirp fest (hopefully in a year or more). But when a neighbor had chirping even after replacing the batteries in her alarm, I told my wife to try one of these. It worked – no more chirping. But also no more battery.So I recommend laying in a stock of these and hiding them from your wife.

9. 

   5 out of 5

   VictorVictor – August 13, 2020

   Update: Dec 2021 It’s been one full year of installing these batteries into my combo hard wired smoke & carbon monoxide units and they are still working great with these batteries. I had installed the batteries back in 12/03/2020I will update in the future when the smoke & carbon monoxide batteries needs replacing.I woke up one night with the sounds of my combination of smoke & carbon monoxide alarm chirping at 3:00am, rather then installing any cheap 9 volt battery i decided to order these Duracell 9 volt batteries from a brand i trust, it was ship & sold by Amazon and i received them the very next day.I like that the expiration date is written on the battery itself & mine expires on 2025.I tested two of my smoke & carbon monoxide alarm & they worked just fine. As to the longevity of these batteries i wrote down the date i installed the batteries & will update this short review in the future.

10. 

    5 out of 5

    Ry – September 17, 2020

    I was in a bind before I got these, my parents were on vacation and all the smoke detector started doing their low battery beeping. I didn’t have a car so I couldn’t make the trip to the store. These arrived so quickly that it gave me a sense of relief to know that these batteries would provide the energy the smoke detectors needed. Two months in and they still are doing good at their job.