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TOP 1000 REVIEWERon January 20, 2016
AmazonBasics batteries are quite good in terms of capacity -- pretty much tied for the top spot compared to the other 6 brands I've tested, but other brands have the edge in capacity per dollar. When I computed value by dividing capacity by the cost per battery of the cheapest package size, they took a respectable third place, and they have the advantage of being a trusted name compared to the value leader. In the images I have attached a graph and a table summarizing my test results for the 7 types I've tested, but if you'd like to know more about how I test ... on to the in-dept test & review.

I've been on a bit of a quest to test all of the top-selling aaa batteries on Amazon in a repeatable, precise way. This means the same equipment, same environmental conditions, and same slots in the equipment will be used for each test. For each test, I fully discharge 3 batteries in my Opus BT-C2000 battery analyzer at rates of 100 ma, 200 ma, and 400 ma (discharge rate affects usable capacity). I have also performed this exact same test (same equipment, same conditions) on the ACDelco, Duracell Procell, Duracell Coppertop, Energizer MAX, Maxell, and Rayovac. I have linked the other brands I've reviewed at the end of this review if you'd like to take a look at the other results for comparison purposes. For the Amazon Basics batteries, the capacity at each discharge rate was:

Disch Rt | Capacity | Runtime | Sample use case
100 mA | 997 mAh | 10 hrs | Low-power LED flashlight
200 mA | 914 mAh | 4.5 hrs | Electronic toy / medium LED flashlight
400 mA | 623 mAh | 1.5 hrs | Motorized toy / bright LED flashlight

Note that these (and all other Alkalines) would achieve somewhat higher capacity (maybe 1200 mAh) in a low discharge application like a mouse, keyboard, remote control, etc because alkaline batteries have internal resistance that reduces usable capacity at high discharge rates.

The capacity of these batteries is among the best I've tested -- take a look at the attached data table for comparative data. For the cost (~$0.31/ea in a 36 pack right now), these are a decent but beatable value -- the power supplied per dollar spent is very good, but eclipsed by other currently available options.

Comparison:

These batteries do well capacity-wise, but value-wise are blown away by the currently cheapest energy/dollar battery that I've tested, the ACDelco aaa's. Their capacity results were:

Disch Rt | Capacity | Runtime
100 mA | 1005 mAh | 10 hrs
200 mA | 864 mAh | 4.3 hrs
400 mA | 670 mAh | 1.7 hrs

As you can see, the Amazon batteries were very comperable ... but, at the current time the AmazonBasics batteries are $0.31/ea (36 pack), while the ACDelco batteries are about $0.21/ea (48 pack) -- so the ACDelco are significantly cheaper per mAh. I did not test shelf life, so it's possible that these may hold up better sitting in a drawer. Although both the Amazon batteries and the ACDelco batteries are certainly made on contract by a third party, I do think that I trust Amazon a bit more to provide consistent batteries than ACDelco ... although I haven't had any trouble with my ACDelco batteries so far. It's also worth noting that the Amazon batteries come in clearly superior packaging - while the ACDelco batteries come in a horrible gigantic plastic blister pack, the Amazon batteries come in a closable cardboard box. If you don't go through a lot of batteries & organization of your battery drawer is important to you, that could push them into the all-around winner category despite the ~50% price premium.

Finally, because another review specifically mentions the Rayovac AA's as being 'good' in some usage scenarios, I thought I'd share my findings for the Rayovac AAA's. In short, they're garbage - the Amazon batteries are better in EVERY case. It's possible that the Rayovac AA's are much better than the AAA's, but I think it's more likely that the version of the Rayovacs tested by the website that he got his results from is different than the most popular Rayovac on Amazon (I source all of my batteries from Amazon). I ran the Rayovac test several times because I couldn't believe how poorly they did ... here are some typical Rayovac results:

Disch Rt | Capacity | Runtime
100 mA | 908 mAh | 9 hrs
200 mA | 590 mAh | 2.9 hrs
400 mA | 443 mAh | 1.1 hrs

My other battery tests/reviews:

I have posted reviews for Duracell Coppertop, Duracell Procell and ACDelco aaa alkaline batteries with capacity data gathered using the exact same method and equipment. To find those reviews for comparison purposes, go to the product pages linked below and search for 'mah' under 'all reviews' (or just browse to them on my profile). If/when I do additional aaa tests/reviews in the future, I will update this list.

ACDelco AAA Super Alkaline Batteries
Duracell AAA Batteries Coppertop MN2400 - 20 Pack
Duracell Procell AAA Batteries PC2400BKD09
Energizer MAX AAA Batteries
Maxell Alkaline Battery AAA Cell
Rayovac Alkaline AAA Batteries
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on May 13, 2015
I like AmazonBasics products, so I was excited to see these batteries. To find out if they were a good value, I looked up data online. Bottom line:
-- For flashlights, toys, and steady drain devices, you'll be better off buying Rayovac Alkalines here on Amazon.
-- For cameras and photo flashes, Duracell Coppertops will be better.

Here's why: Rayovacs cost a little bit more per battery, but they hold more energy than these AmazonBasics batteries. As a result, the final price per amount of power is about the same. You just won't have to change batteries as often.

Those Rayovacs work best in steady drain devices, but not so well in cameras or flashes. For those high drain devices, Duracell Coppertops hold up better and end up being cheaper.

Battery Ninja tested these AmazonBasics AA's in toothbrushes I did some calculations and found that these batteries offer a reasonable price per unit of power (mWh), but that they do not carry as much energy as others. The test results show that these batteries will run out faster than others, at least in the toothbrushes. There were no test results vs. digital cameras, photo flashes, or toys, so I'm extrapolating that these will perform like Rayovacs, not like Duracell Coppertops.

So, the only data to compare here is the toothbrush test. For energy delivered, these AmazonBasics batteries cost about the same as Rayovac batteries but will die sooner. To say that another way, these batteries cost less, but also deliver less power.

Both Rayovac and Amazon Basics are better than Energizer batteries, which appear to consistently give less power and still cost more. I guess the money goes to the Energizer Bunny.

Duracell Coppertops will last longer in flashlights, toys, and toothbrushes, but cost a little bit more per unit of power (mWh). On the other hand, they hold up better in cameras and similar electronics. They're probably the best all around battery. So, if you don't like changing batteries and a willing to spend a tiny bit more, Coppertops are a good way to go.

Finally, the best value battery is interesting: it is the Costco Kirkland Signature. Battery Ninja's results show that and so do the tests from Consumer Reports. You can buy those Costco batteries here on Amazon, but the price is higher than you'd get at the club. Of course, I'm not a Costco member, so it doesn't matter to me... but buying them here on Amazon is not a good value.
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on February 2, 2017
I'm shocked & dismayed at the poor quality of these batteries. I'm equally surprised that Amazon would put their name on them. They work for a very short period of time and that's only if you can find any that work at all. I thought that the price was too good to be true but I decided to purchase them because of the Amazon branding.. I have never returned anything that I've ordered from Amazon, and any problems that I have encountered have been with either the shipper or the seller. Please stop selling these batteries or take your name off of them.
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on December 11, 2016
I read a lot of reviews and convinced myself the AmazonBasics AA alkaline batteries were going to be a good buy. Nope. I put a pair in my TV remote, and within a month the TV was telling me to replace the batteries because of low power. I decided to check some new ones right out of the wrapper with my battery tester. 8 brand new batteries tested - all 8 in the red on the battery tester...not totally dead, but just inside the red. Next trip to Home Depot, I picked up the big pack of Energizer AA batteries and did the same test on them. 8 for 8 all in the green on my battery tester.

Oh well, not worth crying about $13 worth of weak batteries. I am sure others have had great luck with the same AmazonBasics AA batteries. I just wanted to add my experience so others can make an informed decision. Good luck!
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on November 2, 2017
Not sure if we got a bad batch or these batteries just have less oomph than the competition. But we will NOT be using these for our electronic door locks ever again. Generally speaking, we replace our lock batteries every 6-8 months. When it came time to swap them out recently we used the Amazon batteries. Two days later the door lock wouldn't open or close. OK, maybe some of those batteries were bad we thought- it takes 6 after all. Swapped them out again- the lock failed within 24 hours. Third try is the charm- nope! If you are keeping count that is 18 batteries that are garbage.

At this point, we are convinced that the lock is going bad, but we happen to have some other batteries that have been installed in other devices that we decide to try in the lock- NOT Amazon batteries. And- the lock works fine! Old, semi-used batteries apparently have more power than these Amazon batteries. Guess we are done with Amazon's in-house brand for the foreseeable future.
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on September 26, 2017
I use these at church for wireless microphones. We had previously used the standard Duracell brand batteries, and would generally get 3-4 weeks (about 2 hours per week) out of them before they needed to be replaced. These only seem to last about 2 weeks at best. We'll be switching back to Duracell for this application.

I would certainly use these for applications around the house... toys, remotes, keyboard/mouse, etc, but we need to make sure our batteries don't die in the middle of a church service, so we'll still to the good ones for our application.
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on March 17, 2016
Not happy with these at all bought them at Christmas for toys and they have exploded in 4 of 5 toys they were put in.

All batteries have leaked. Corroded and destroyed one toy to where it won't work anymore and it was the $40 beatbox by fisher price. My daughter loved it :(
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on December 5, 2017
Sorry Amazon, but you really did a horrible job sourcing batteries from wherever you got them from. No wonder they're so cheap. You get what you pay for. Compared to real name brands like Duracell or Energizer which last a very very long time, these AmazonBasics batteries last literally just a few days. Maybe I got a batteries from a bad batch or something, who knows. But definitely not ever gonna buy these batteries again.
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on January 15, 2016
So, I purchased a pack of these a month ago (11-Dec-2015) and was using them as expected, when I hit a snag. At LEAST 3 batteries from this pack were marginal/undervoltage (<1.5V) out of the box. I found this out because I had replaced a pair of batteries in one of my remote sensors for my wall mounted indoor weather station because the had sensor stopped working. I thought maybe I had inserted them wrong, but no, the +/- marks matched the batteries. So I tried several times to reset both the sensor and the station with no luck. At one point, I had all of the batteries out to force a reset and put them back. But now my weather station would not power up either.

That was the clue I needed. I got my trusty multimeter (with battery tester) and checked out all 5 of the Amazon Basics AA cells. Like all NEW 1.5V batteries, most of them showed >1.6V which is typical. Two of them were at 1.48V, which was just low enough for them to be considered "undervoltage". No new AA battery should arrive with <1.5V. This is the first and only time I have ever seen fresh batteries arrive in a "not as new" condition with caused problems with my electronics.

I generally like all of the various Amazon Basics products (mice, HDMI cables, etc.), but this has caused me to have doubts about not only their AA batteries, but all of the house branded products. Buyer beware (Caveat Emptor) seems to be the bottom line.
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on December 13, 2016
A day or two after these batteries arrived, I installed several of them in toys and our small keyboard (which also has A/C power). The next morning, my son called me into the living room, "Mom! There's chocolate sauce all over the 'piano' and the table." It wasn't chocolate sauce. It was battery acid. As he said, "good thing I didn't taste it!"

For what it's worth, the keyboard was plugged in, and it had not been turned on or played since the batteries were installed. The five new batteries were in place for about 18 hours before the leak was discovered.

The green seal fell off of two of the five batteries as I removed them from the compartment. The acid left a 2" stain on my table.

The other batteries that I installed that day still seem to be okay, although I've developed a paranoia about checking them! I have used Amazon batteries in the past with no problems, which is why I'm giving 2 stars, instead of 1. The attached photo shows the rings that fell off. (I wish I'd taken a photo of the puddle they left on the keyboard and table, but I was too focused on clean-up to stop and take a picture.)

You'll also note that these batteries are darker in color than the product image that is currently shown. They came this way, and I'll use that difference to keep an eye on their performance/durability.
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