Duracell 2PK 9V Batteries (66521)

Item no: 3508918 | 041333665214
$12.99
130  Estimated 
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  • Sub Brand: Quantum
  • Battery Size: 9V
  • Battery Chemistry: Alkaline
  • Product Type: Batteries
  • Battery Voltage: 9 volts
  • Number in Package: 2 pk
  • Number: 66521
  • Integrated PowerCheck battery tester to instantly and accurately check the power level inside the battery


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Duracell 2PK 9V Batteries (66521)
 
4.8

(based on 103 reviews)

Ratings Distribution

  • 5 Stars

     

    (89)

  • 4 Stars

     

    (11)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

Most Liked Positive Review

 

Modern Update To a Classic Battery

When it comes to AA batteries, I purchase for two main use cases: one, the everyday items I use all the time and will be chewing through batteries on a fairly regular, consistent...Read complete review

When it comes to AA batteries, I purchase for two main use cases: one, the everyday items I use all the time and will be chewing through batteries on a fairly regular, consistent basis (TV remove, computer mouse, children's toys, etc.) and, two, for those mission critical items around the house that may not be used every day, but *must* work when I need them (safety devices, flashlights, etc.). For regular use, I go with re-chargeable AAs always, they don't need to hold a charge on the shelf and the cost of purchasing and recharging is far less than the cost of buying non-rechargeables. When I need to know that my battery is still going to hold a charge in 5 to 10 years without any use - non-rechargeables are the way to go, and these Duracell Quantum batteries take it up a notch and add in a reliable way to test that they've held their charge. I've used older models in the past with a Powercheck-like feature, but it always felt like a gimmicky add-on and wasn't always reliable. In the new Quantums, the feature seems to have come to maturity, and now I can't imagine a battery without it.

Duracell was kind enough to provide me with a free sample of these batteries, and to put them to the test, I loaded them into a flashlight that I keep around that I know chews through batteries. Not only did they hold their own, but after significant usage - a quick test of the Powercheck bar shows that they could have gone on where I know my normal AAs would have started wearing down.

Bottom line, for a reliably held charge and the comfort of knowing you can check the charge periodically so you know it will be there for you, Duracell Quantum is the way to go!

VS

Most Liked Negative Review

 

Same great product new packaging

I received the package of double later so quantum batteries from Duracell to sample and write a review so that customers can see how other customers feel about the product. I used my batteries...Read complete review

I received the package of double later so quantum batteries from Duracell to sample and write a review so that customers can see how other customers feel about the product. I used my batteries in a handheld sewing machine and have been using it for a couple days now sewing anything that I can find and seeing how well the batteries work. Well the batteries are still going which is surprising because my handheld sewing machine eats batteries like I've never seen a mechanical device eat batteries before. So the battery life of the quantum battery is very good and it's convenient with the new power strip checker if you want to see how much battery you have before you use it. So I recommend the battery highly not quite sure why they had to put the new packaging and change the name just because they added the power strip its still the same great product that I've always used long life and trusted storage its a good battery to have

Reviewed by 103 customers

Displaying reviews 1-30

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5.0

Impressive

By Tinysparky

from Eaton, OH

Comments about Duracell 2PK 9V Batteries (66521):

I have always been an Energizer man but I have to say Duracell has impressed me so far. These batteries are great and so far have stood up to the demand of a battery that gets a lot of use on a construction site. I use my flashlight every day at work and these batteries have not left me in the dark. If you want a battery that will keep going after daily repeatedly use then I definitely recommend Duracell Quantum. Sorry Energizer. Looks like the little pink bunny has met his match!

 
5.0

Batteries for Gamers

By pjgartland

from Denver, CO

Comments about Duracell 2PK 9V Batteries (66521):

Gamers these are great batteries. We put a set in a wii controler and in a set in an xbox controller and played all we could for weeks and the batteries are still running very strong. Get a set and get your game on.

 
5.0

Don't chance a dead battery

By starfollower

from Uniondale, NY

Comments about Duracell 2PK 9V Batteries (66521):

I think the tester will make it easier to plan my middle school constant speed lab. I can tell if the batteries are good without installing them.

 
5.0

Duracell Quantum batteries

By Jojotosc

from Woburn, MA

Comments about Duracell 2PK 9V Batteries (66521):

I received Duracell Quantum free from Duracell. These batteries last longer than any battery that I have previously used. I will definitely be buying them & highly recommend.

 
5.0

long lasting batteries

By melsummers88

from Mart, TX

Comments about Duracell 2PK 9V Batteries (66521):

These batteries are fantastic! My was a little curious if these were going to be like every other battery we have tried in the past but after using them for the extent we did we are pleasantly surprised how long these lasted! My Son has a innotab tablet that runs off batteries and we were changing out dead batteries every time we would turn around. That was not the case with these Duracell Quantum batteries. I couldn't believe how long they lasted. We went on a summer vacation road trip and a few hours away from home and he played on his game the full length of the trip there and back and in between and when we finally came home it still have some life left to it!!!After many many other brand batteries we have used and gone through we have finally found a great set of batteries we will be purchasing from here on out.

 
5.0

It keeps going

By spacer0000

from Conway, AZ

Comments about Duracell 2PK 9V Batteries (66521):

LAst longer than your regular Duracell batteries. Will buy in the future for sure. Great product and last and lasts and lasts. Unlike the other brands that are on the market.

 
4.0

Modern Update To a Classic Battery

By JoeBigham

from Orlando, FL

Comments about Duracell 2PK 9V Batteries (66521):

When it comes to AA batteries, I purchase for two main use cases: one, the everyday items I use all the time and will be chewing through batteries on a fairly regular, consistent basis (TV remove, computer mouse, children's toys, etc.) and, two, for those mission critical items around the house that may not be used every day, but *must* work when I need them (safety devices, flashlights, etc.). For regular use, I go with re-chargeable AAs always, they don't need to hold a charge on the shelf and the cost of purchasing and recharging is far less than the cost of buying non-rechargeables. When I need to know that my battery is still going to hold a charge in 5 to 10 years without any use - non-rechargeables are the way to go, and these Duracell Quantum batteries take it up a notch and add in a reliable way to test that they've held their charge. I've used older models in the past with a Powercheck-like feature, but it always felt like a gimmicky add-on and wasn't always reliable. In the new Quantums, the feature seems to have come to maturity, and now I can't imagine a battery without it.

Duracell was kind enough to provide me with a free sample of these batteries, and to put them to the test, I loaded them into a flashlight that I keep around that I know chews through batteries. Not only did they hold their own, but after significant usage - a quick test of the Powercheck bar shows that they could have gone on where I know my normal AAs would have started wearing down.

Bottom line, for a reliably held charge and the comfort of knowing you can check the charge periodically so you know it will be there for you, Duracell Quantum is the way to go!

 
5.0

Look at them go and go!

By Weeble

from Las Vegas, NV

Comments about Duracell 2PK 9V Batteries (66521):

I popped two of the Duracell Quantum Batteries I got for free from Duracell into my gaming controller and let the games begin.i haven't heard anything from the kid's about needing to replace the batteries yet! This is amazing considering the other batteries we have been using would have already been replaced at least once! My family and I highly recommend them to you and your family. So go out and get these fabulous Duracell Quantum Batteries for yours and thank you Duracell for sending them to me for free!#i igotitforfree #freeduracellquantumbatteries # bzzagent

 
3.0

Duracell Quantum Batteries

By CaitlinLawler

from Alexandria, VA

Comments about Duracell 2PK 9V Batteries (66521):

These are good batteries, but to be honest I couldn't tell much of a difference between these and other ones from Duracell in the amount of lasting power. I thought the power check on the side was interesting, but that also means you have to take out the batteries to check which I never remember to do. I still prefer rechargeable batteries

 
5.0

Batteries that last

By Rherrman1322

from Park City, KS

Comments about Duracell 2PK 9V Batteries (66521):

These batteries last a long time with a lot of use. I like the fact that they have a test strip on the side so you can see how much juice is left in them. We used them for toys that her used frequently and haven't had a single problem with them. Great job Duracell!

 
5.0

They're still going!

By Phantomphan74

from Lima, OH

Comments about Duracell 2PK 9V Batteries (66521):

I popped two of these into my Xbox controller. It goes through batteries like crazy. They're still going strong. I love the long storage life and the ability to tell at a glance that there's still power in them. Thanks Duracell for giving me these to try for free. I will definitely be buying them in the future!

 
5.0

Awesome batteries, last forever!

By Alammers

from Byron Center, MI

Comments about Duracell 2PK 9V Batteries (66521):

These batteries are amazing! I use heavy duty flashlights for my work in dark buildings. I have a small flashlight that is small and powerful but also a huge battery drainer. These batteries have lasted 3 times longer than normal batteries and they are still going strong. I will buy these batteries whenever I need a long lasting and dependable battery. Don't want to get stuck in a dark building with no power and my flashlight goes out but I won't have to worry about that with these batteries! Highly recommend for those battery intensive electronics.

 
5.0

Great Batteries to use for Video Game Controllers

By KDBirns

from Arlington, VA

Comments about Duracell 2PK 9V Batteries (66521):

I have been using these batteries in my Xbox One Controller and I have not had any problems with them so far, nor have they died out yet. They are long lasting batteries it seems for the time that I have used them so far. They still have a full battery life shown on the battery status indicator.
I received these Batteries from Duracell for free in exchange for a fair and honest review.

 
5.0

Duracell® Quantum Batteries

By TondaLynn

from Moultrie, GA

Comments about Duracell 2PK 9V Batteries (66521):

I received Duracell® Quantum Batteries free from Duracell to try out and I love them. They last longer than any battery I have ever used. I highly recommend them.

 
5.0

Awesome batteries with long life!

By sburke313

from Nesquehoning, PA

Comments about Duracell 2PK 9V Batteries (66521):

I have a long history with having a difficult time with batteries. I received these batteries free from Duracell and have to say I'm impressed. My family uses a lot of heavy duty and battery-draining electronics so to use these Duracell Quantum batteries and have them last was refreshing! We chose to use them in a handheld electronic game and they lasted at least twice as long as the previous no name brand we were using. I used to think it was more cost-effective to use the cheaper brands but after going through handfuls of them for the same amount of time we had the Quantum's in, I have changed my mind. It was also helpful to use Quantum because we were going on a trip and I was able to pop a battery out, use the nifty checker and see how much "juice" we had left. So handy! I will be purchasing in the future.

 
5.0

Amazing Quality!

By Jennaferanne

from Coon Rapids, MN

Comments about Duracell 2PK 9V Batteries (66521):

We've been using these awesome batteries given to us in exchange for an honest review from Duracell in our main living room remote and in our kitchen clock for over a month now. Obviously our clock gets used 24/7 and our remote gets used embarrassingly too much. Both devices still have a full battery life left according to the batteries sensor. These are amazing! I was replacing my clock batteries monthly with dollar store batteries. Thanks Duracell!

 
5.0

This gamer household LOVED Duracell Quantum batteries

By edburdett

from North Augusta, SC

Comments about Duracell 2PK 9V Batteries (66521):

I wasn't expecting anything too special when Duracell sent me 4 free Duracell Quantum Batteries. I was very pleasantly surprised. We're a household full of gamers and we are always buying batteries to power our wireless controllers. These batteries lasted at least three times as long as others. Around the time I would expect to have to replace my batteries, I used the Power Check and saw the batteries were not far from the full mark. I will definitely buy these in the future!

 
5.0

Awesome gaming power!

By NewBatman

from Florence, AL

Comments about Duracell 2PK 9V Batteries (66521):

I received the Duracell quantum batteries from Duracell to try out for free and I am very impressed with power output and longevity. It's really handy to have the built in tester on the battery so I can make sure I have enough power to play my game. I have been using them in a wireless controller for my gaming system for over a week now and they still read full power. That's a win in my book!

 
5.0

The Power to Change the....

By marlenemb

from Orlando, FL

Comments about Duracell 2PK 9V Batteries (66521):

Channel, and possibly the universe.

After receiving my Duracell Quantum Batteries in the mail my first thoughts turned to the most important thing in the house... the remote control. We all know remotes seem to eat batteries for lunch. And we know the frustration of replacing one dead battery with a half dead battery. Thanks to the power level testing strip you can always know how much life is left in your Duracell battery. So far the product is living up to the hype, the remote is responsive from anywhere in the room, no hitting buttons over and over again, just reliable power for the unit.

My second set of Duracell batteries when to the actual most important item in the house, my smoke detector. Knowing, with absolute certainty, that the batteries in my smoke detector are long lived and reliable makes it easier to sleep at night. Being certain my loved ones and my fur babies are protected by a product I have a positive history with it very comforting.

Over all I would recommend Duracell Batteries for the electronics you rely on. If you want to know you can count on your battery when you need it pick up a package at your local superstore and market.

 
5.0

Longest Lasting, Best performing Battery

By TrishMUA

from Beaver Meadows, PA

Comments about Duracell 2PK 9V Batteries (66521):

I go through tons of AA batteries as my boyfriend and I use them in so many gadgets. Most frequently, our gaming consol controllers. Anyone who frequently plays video games knows how quickly you go though batteries.

For purposes of this review I did an experiment. I put our normal brand of batteries in one controller and the Duracell® Quantum AA batteries I was sent for free in return for an unbiased review in another. Both controllers were used for roughly the same amount of time.

I took the Quantum batteries out to test the powercheck™ strip and as you can see from the photo attached the power is still full!

I think I am completely sold on this brand of batteries as far as using them in my most frequently used battery operated gadgets. Absolutely worth the price point.

 
5.0

It goes on, and on, and on!

By GSPearce82

from Newnan, GA

Comments about Duracell 2PK 9V Batteries (66521):

I decided to put the Duracell Quantum Batteries to the ultimate test, baby toys! With an infant only a few months old we run through batteries constantly playing songs and lighting up toys to encourage our child's development...or rather we did. Since installing the Duracell Quantum's I haven't had to change batteries in several weeks.

 
5.0

Reliable batteries

By Cesar1215

from Lawrence, KS

Comments about Duracell 2PK 9V Batteries (66521):

I have been using this batteries since I got them compared with other brand which I put them at the same time to the remotes. I did the living room TV with the Duracell and my bedroom with the other brand.I had to change the other brand yesterday,keep in mind we had to change the bedroom batteries yesterday and the Duracell still working like nothing; I think I'm going to be making a switching decision pretty soon specially for my wife insulin pump since battery operated.

 
5.0

Truly dependable and long lasting

By leeleek67

from North Kingstown, RI

Comments about Duracell 2PK 9V Batteries (66521):

There's nothing more frustrating than testing a handful of batteries when looking for replacements. Thankfully Duracell included the Powercheck feature so I'll always know how much battery life I have left. From remotes to my penlight these batteries are truly dependable and long lasting!

 
5.0

Love These Batteries

By everythingandnothin

from Eaton, OH

Comments about Duracell 2PK 9V Batteries (66521):

These batteries really are amazing! They last longer than normal batteries. I got a few extra days of use then when I use normal batteries. I also love the design and they were easy to use. Totally love the design as well. I would definitely use these batteries again!!

 
4.0

Medium-Long lasting power

By OrchidFlame25

from Oregon City, OR

Comments about Duracell 2PK 9V Batteries (66521):

I put a pair of Duracell quantum batteries in two Xbox One controllers. One of the controllers had a pair of earbuds headphones plugged into it, effectively increasing the power consumption.

The controller with the headphones plugged in, lasted three [4 hour] gaming sessions. This was about one full day longer than the regular Duracell batteries last.

I managed to get close to four [4 hour] gaming sessions out of the controller with no headphones plugged in.

Overall, these batteries pack a pretty good power level, but the price for them isn't very cost effective when compared to the price I am able to buy the regular Duracell batteries for in bulk. I did find the power-check feature to be a much welcomed comeback.

I may not recommend these to my gaming friends, but perhaps they would last longer in other devices. I would probably find the best use for them in my TV remotes. Who knows, I might not ever have to pick up the clicker only to find it has gone rogue and turns up the volume full blast instead of down a few notches!

 
5.0

This is a must in every household!

By HaniRay

from Charlotte, NC

Comments about Duracell 2PK 9V Batteries (66521):

Hey guys, I have finally found the right alkaline batteries to use for my
facial brush exfoliator, toothbrush, in-house remote and my baby's toys. I have been searching for the right batteries that have longer performance and somehow to have an indicator to show the level of its lifetime. BINGO! This is the one!

Duracell® Quantum Battery has unique features; not like any other batteries you see in your local store. With PowerCheck feature, I can check a battery's energy level by simply pressing the "press" button and voila I can have peace of mind not worrying about the battery performance running low unexpectedly!

These batteries also have a 10-year guarantee in storage so you can keep them handy whenever you need them. I must say the performance of the battery is far better than any other batteries out there. For example, my baby's toys are still running so well after 2 weeks of playing them non-stop. This is definitely ideal for long term usage and overall, I am very impressed with the quality, durability and performance.

 
5.0

A picture is worth a thousand words!

By CaramelCat

from Maitland, FL

Comments about Duracell 2PK 9V Batteries (66521):

I received these batteries free from Duracell and I could not have been more excited! I decided that I would really put them to the test with my favorite light up sign, which has always been quite draining on batteries. To my surprise, I have been using them nightly for several weeks now and they are still going strong! I especially love the Powercheck feature so I can tell when it's time to order more, which I will definitely be doing! Thanks Duracell!

 
5.0

Takes the sting out of life

By Northstarcakes

from Coarsegold, CA

Comments about Duracell 2PK 9V Batteries (66521):

I used these Duracell quantum batteries to power a black light flashlight. I live in the foothills of California where scorpions abound. Since they fluoresce bright green under black light they're much easier to spot. When I first received these from Duracell I figured batteries are batteries, right? I swapped out the store brand I was using for these and what a difference! The light was noticeably brighter and the flashlight has been used every night for several weeks and hasn't dimmed. These Duracell quantum batteries are powerful and long lasting and have helped keep my family scorpion-sting free for weeks! Thanks Duracell!

 
5.0

Duracell Quantum Has Me Powered Up!

By collide30

from 41501, KY

Comments about Duracell 2PK 9V Batteries (66521):

I received these Quantum Duracell batteries and put them in my XBOX ONE controller. They are working great. I have had them in for almost a month now and havent had to flip them or replace them like other batteries I have used. If you are looking for great quality batteries....these are the way too go. They are durable and powerful. Duracell sent them too me for free. What a GREAT company! I can use the power meter to check the power left on the batteries that way there is no corrosion done to my controller. Great Product! Great Company! Keep on Bzzzzing. Go DURACELL QUANTUM!

 
5.0

Bzzz agent in love

By Gbaynham321

from Detroit, MI

Comments about Duracell 2PK 9V Batteries (66521):

I think these are the coolest batteries ever. My 5 year old son loves them. All he wants to do is play with the power gage on the side

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