Amazon.com: Customer reviews: Amazon Basics 8 Pack 9 Volt Performance All-Purpose Alkaline Batteries, 5-Year Shelf Life, Easy to Open Value Pack

Top positive review

Many negative reviews - but seems OK to me.. I measured all voltages...

Reviewed in the United States on October 5, 2018

I did not read the reviews before purchasing these batteries - and if I had, I would not have purchased them. I bought to install in water leak sensors placed under out sinks and water heater. I tested each water leak sensor and each worked, with these batteries installed. THEN I was going to buy another 8 and saw the reviews. Bummer, I need to check the voltage of each battery so I KNOW the batteries are good. I have just finished doing this, each battery was 9.77V - measured with a very good voltmeter. This is a bit higher than I thought it should be, but OK. I set off an water sensor and let it run for about 45 seconds, that battery read 9.53V after this. Sill fine and more in line with what I thought the batteries should read. I can't vouch for how long they will last, but there is no current being pulled from the battery unless the sensor goes off, so I think I'm ok for a few years, but I plan to test every 6 months or so - easy for me to do as I put Velcro on each sensor so I can remove easily from under the sink, the battery pulls right out, and I can test quickly. The Size is not an issue in the application - but I can see where in other applications it might be. Costco has $3 off the gold top Duracell 5 year guarantee 9V batteries, which brings the price from $16.50 to $13.50, so not much more than these $10 - so I did buy 8 of those to be used ads backups - but if these Amazon batteries work under load (when the siren goes off) I'll be buying more.

56 people found this helpful

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Patricia L.

They are larger than other 9V batteries

Reviewed in the United States on January 23, 2018

First and foremost, we really like the Amazon brand batteries. I used these batteries in a digital clock and worked just fine. However, our main reason for buying this set was to use them in our smoke detectors. In short, they are TOO BIG! I never realized 9V batteries vary in size until we tried to use these in the smoke detectors. Please see the pictures. They are slightly taller and a little wider. The door on our smoke detectors simply won't close and you don't want to force it. This is the only reason we purchased this many...so learning has occurred! We simply don't use them for anything else other than the occasional battery in a digital clock and for that they work fine. Please keep this in mind when purchasing. Make sure whatever you are putting them into that you have the extra length and width to accommodate a slightly larger battery.

1,539 people found this helpful

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Patricia L.

They are larger than other 9V batteries

Reviewed in the United States on January 23, 2018

Style: 8 Count 9VPattern Name: BatteriesVerified Purchase

1,539 people found this helpful

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JoShmo

Dangerous, mislabeled charges.

Reviewed in the United States on September 30, 2018

Style: 8 Count 9VPattern Name: BatteriesVerified Purchase

The positive and negative charges on one of the batteries in the set was labeled in reverse. I installed the battery based on the charge and within a few seconds the battery was making sizzling noises and smoking. I turned off the device and carefully opened the battery compartment. Upon comparing it to the other batteries I realized it had been mislabeled. I'm thankful I was still in the room when this happened considering one of the devices I'd installed the other 9V battery in was in a different room. I will be contacting Amazon and filing a complaint. I'm very disappointed in their quality control standards.

378 people found this helpful

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An Old Ham

Quality Control is not Good

Reviewed in the United States on January 12, 2018

Style: 8 Count 9VPattern Name: BatteriesVerified Purchase

I bought these for a semi-annual smoke detector battery change out. I like the way each battery is individually shrink wrapped because of the short problem while storing the batteries. I also installed one in my carbon monoxide alert system and it kept 'chirping.' I checked the voltage of the new battery and it was only 4.7 volts D.C. I also had a second dead battery, so 2 of the 8 were duds. I didn't return them because of the hassle. I will not buy these again because the quality control is NOT good.

472 people found this helpful

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Calamity

Bad batch? I cannot recommend.

Reviewed in the United States on March 19, 2018

Style: 8 Count 9VPattern Name: BatteriesVerified Purchase

***UPDATED 4/29/2018 -- shortly after I wrote this review, I tossed out the entire box. So disgusted, I didn't even want to hassle with sending back for a refund. TRASH! ** This weekend I received the batteries and a First Alert carbon monoxide alarm. I bought the 9v for this purpose - and to use in the smoke detectors. When I managed to wedge in the slot, the connectors did not fit the alert. I turned it upside down thinking I had installed incorrectly. No. I was surprised that I had to forcibly push it into the slot, because of the extra width compared to standard 9v batteries. After no more than 20 seconds of this, I took it out and it was warm, which I thought was odd. In the next minute, I could actually smell the chemicals, and touched it again. It was HOT! Too hot to hold and, truthfully, I was sure it was building to explode. I put a cup over it until it cooled off. I've never had this kind of a reaction with a battery. Ever. Maybe I just had a bad batch, but once is enough for me. I then inserted the Eveready which came with the detector. Problem solved. These are being returned. I am not a name-brand snob. Quite happy with the Amazon basics AA & AAA batteries. **Before I clicked 'submit', I checked the Eveready and tested the alarm. My furnace died the other day (which is why I wanted the CM alert) and it is 59 degrees in my house. The battery was just as cold to the touch. Win.

362 people found this helpful

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Olly2014

Not so good for active electronics in instruments/pedals

Reviewed in the United States on February 19, 2018

Style: 8 Count 9VPattern Name: BatteriesVerified Purchase

I thought these would be a great deal since I have quite a few pedals and active basses that need 9v batteries. Also seeing the amount of star ratings thought I couldn't go wrong. But these things can't seem to keep a charge even when I unplug everything.

I've also had the same problem as a bass player who reviewed these batteries. The battery is too tall and fat for tight battery cavities and don't last long enough. You can see from my attached ***PHOTOS*** that it doesn't even fit in my battery compartment w/o smashing it in and you don't want to do that because it'll bite into the attached wiring.

There are more cons for this particular usage than there are positives. They may work great in other applications but I'm going back to buying regular brand batteries for my electronic instrument needs.

258 people found this helpful

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Michael M.

Low capacity, smoke detectors lasted a month.

Reviewed in the United States on December 28, 2018

Style: 8 Count 9VPattern Name: BatteriesVerified Purchase

I used these to replace the 9v batteries in 6 smoke detectors in my house. Within 5 weeks, all of my smoke detectors are now chirping the low battery warning. Typically, my smoke detectors will last at least 6 months using name brand batteries. I will not buy these again. I'm seeing people report low capacity for years now. Amazon really needs to work on the quality of their products' supply chain, as the Amazon Basics line is really hit and miss. These 9volt batteries are a total miss and not worth purchasing.

118 people found this helpful

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Tyler

Good batteries, but slightly bigger than some!

Reviewed in the United States on April 7, 2015

Style: 8 Count 9VPattern Name: BatteriesVerified Purchase

FYI, this review is for the 9 volt batteries. Amazon apparently groups the reviews for all of their battery styles together. I can't really help with that.

Batteries were just a tiny bit longer than the ones they were replacing. This was a problem in my carbon monoxide detector... But the battery compartment is finicky to battery size. I imagine this would work fine in most places, so long as the battery compartment isn't too fancy.

By my measurements, the AmazonBasics battery is the same size as another heavy duty battery that won't fit in my CO detector. These batteries are 0.6mm longer and 0.6mm wider than a standard duracell battery.

My photos attached show some measurements... Which may not be perfect but hey I don't get paid for this:

1: The length measurement of an Amazon Basics battery (47.96mm), along side a Duracell (clearly shorter) and another brand "Heavy Duty" battery.
2: A measurement of the difference in thickness between the Amazon Basics and the Duracell battery. (0.59mm thicker)
3: A measurement of the difference in length between the Amazon Basics and the Duracell battery. (0.6mm longer)

1,540 people found this helpful

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scott covey

Many negative reviews - but seems OK to me.. I measured all voltages...

Reviewed in the United States on October 5, 2018

Style: 8 Count 9VPattern Name: BatteriesVerified Purchase

56 people found this helpful

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Chess Master

Created Major Problem

Reviewed in the United States on May 8, 2020

Style: 4 Count 9VPattern Name: BatteriesVerified Purchase

These were bought to put in a our ceiling smoke detectors. In less than 1 year 1 of the batteries went bad and in the middle of the night we were awakened by the chirp in the detector indicating a need for a battery change. We got new batteries, but had to go through the expense of having someone come in and change all of them in our 14 ft. ceilings. We buy allot of items from Amazon and usually don't have problems, but we sure did with this item.

41 people found this helpful

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dmz

Do not subscribe and save for Smoke Detectors

Reviewed in the United States on December 7, 2015

Style: 8 Count 9VPattern Name: BatteriesVerified Purchase

Put these on a 6 month subscribe and save and use them to replace the batteries in your smoke detectors at regular intervals. I got the last batch on November 28 2015 and exactly 2 months later on January 28 2016 the 2am chirps from a smoke detector indicating a low battery went off on one. A day later, a second chirp at 7am on Jan 29 went off. I'm canceling the subscription and going back to a name brand, and replacing the rest of the batteries this weekend.

346 people found this helpful

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