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(Pocket-lint) - Whether you call them A23, 23A or 23AE batteries, these little 12V beauties provide the power behind tons of tiny gadgets, including the likes of security fobs, car keys, doorbells and home security systems.

Therefore, it's essential to have plenty on hand for when your devices run low on juice. Since it's unlikely you'll have many things in your home that you can quickly switch out, as well, unlike with AA or AAA batteries, it's even more crucial to plan ahead and make sure you're stocked up.

And with the Pocket-lint team routinely testing all manner of devices, we thought we'd turn our attention to the little guys keeping everything powered.

Now, we'd be the first to admit that putting batteries through their paces is a little different to traditional gadgets, which is why we've concentrated our efforts on checking out the most popular and well-known 23A options.

From here, we asked two questions: does it work as you would expect, and is it reasonably priced? 

Below are the five battery sets that comfortably answered both of those points - continue on to read a bit more about what you can expect.

Best 23A Batteries

  1. Energizer
  2. Duracell
  3. Amazon Basics
  4. LiCB
  5. Gold Peak

Best 23A battery: Our top pick

Energizer Best 23A batteries 2021: Stock up on these tiny 12V powerhouses photo 3

Energizer 23A (Five-Pack)



  • Super performance and reliability


  • Not the cheapest

Being a household name in the world of batteries may not mean that much, but, still, it doesn't hurt to pick up your A23 batteries from a name you're likely to be familiar with. 

Things are fairly standard here - this pack will deliver 12V of power to your smaller remotes and keyring gadgets, with plenty of shelf life for the batteries you're keeping in reserve.

In our testing, it was the longest-lasting and offered consistent levels between different cells.

23A batteries we also recommend

Here are four other battery sets you should also consider.

Duracell new test collection photo 1

Duracell 23A (Two-Pack)



  • Reliable and consistent


  • A touch more expensive

Like the rest of Duracell's speciality battery range, the 23A pair is far from being the cheapest. However, while it lacks that same bit of affordability as others on this list, it does make up for this in its performance.

In use, we found it comparable to Energizer's option, and it also offers up the same claims of five-year storage. We weren't able to test this, naturally, but the long-lasting power of each cell bodes well.

Amazon Best 23A batteries 2021: Stock up on these tiny 12V powerhouses photo 4

Amazon Basics 23A (Four-Pack)



  • Very affordable


  • Slightly inconsistent cells

Like the entire Amazon Basics range, things are kept simple with this four-pack of 23A batteries.

In terms of the price per unit, this set is also one of the most affordable on this list, making it a natural pick for those who want to charge their smaller devices without breaking the bank.

Performance was solid, too. Nothing mind-blowing, obviously, these are only batteries, but we will say that you're not sacrificing much in way of overall performance by deviating away from the traditional battery brands. 

LiCB Best 23A batteries 2021: Stock up on these tiny 12V powerhouses photo 2

LiCB 23A (Five-Pack)



  • Superb value option


  • Not the longest-lasting option

With this LiCB pack, you'll be stocked up and ready to power all your smaller gadgets, with each battery offering the potential of more than 100 hours of juice. Like with any battery, though, whether you can eke out anything close to this depends on how you use them. 

The 12V alkaline cylinders also have a shelf life of around three years before becoming duds, which means you can keep them stashed away and ready for service at a later date.

Gold Peak Best 23A batteries 2021: Stock up on these tiny 12V powerhouses photo 5

Gold Peak 23A (Five-Pack)



  • Easy to stock up


  • Not top-tier performance

Gold Peak's set of five is another example of how 23A batteries don't have to burn a hole in your wallet, with this set available at a very affordable rate.

The 12V units are able to power all your smaller compatible gadgets for roughly 100 hours, though, like with others, it's about how you use them.

We found, for example, that these batteries offered very good performance and lifespan, despite not being best-in-class.

With plenty of shelf life, though, you can keep a few in the drawer and easily replace outgoing units. 

Other products we considered

When trying to figure out what we believe are the top 23A batteries currently available, we spent hours testing and researching. We consider a number of factors when it comes to recommending these batteries - and apply the same criteria when a new device is being considered for inclusion. It's not all judged on our testing, either - we also try to factor in consumer reviews, brand quality and value.

In all of our roundups, there are also many products we test that don't make the final cut. Since they may be the right fit for some people, however, we've listed them below.

How to choose 23A batteries

As we mentioned up top, there's not actually a whole lot to consider when buying 23A batteries. Design is largely irrelevant and specs are nearly identical across the board, which instead puts the emphasis on price, value and reliability in performance.

Below, we'll answer a few key questions that should help you choose the right batteries for your needs.

Do you need a 23A battery?

While much rarer than AA and AAA counterparts, 23A batteries are still fairly commonplace in certain appliances and gadgets. However, it can be difficult to know what you actually need, since they go by many different names.

If your device is compatible with one of the following battery codes, this is a sign you need one of the 12V alkaline power sources: 23AE, GP23A, V23GA, LRV08, 8LR932, 8LR23, MN21, L1028 or ANSI-1181A.

How can you spot a 23A battery?

If you have a drawer full of different, loose batteries, you might already have a 23A battery in your arsenal. Aside from the codes - which are always found on the cell itself - it can be handy to know exactly what one looks like. 

A 23 battery is cylindrical, measures 28.5mm long, 10.3mm in diameter, weighs roughly 8-10 grams and will come with a voltage of 12V.

How much should you spend on 23A batteries?

Batteries are certainly an area in which it's easy to spend - and, in our experience, price and performance don't always match up. With that said, any set with a single cell costing £0.80 - £1 / $1 - $1.25 is reasonable. From there, it's simply about deciding how many you need in your set.

How long should a single 23A battery last?

As with any battery, deciphering how long a single unit should last is very hard - and often depends on whether the device you're powering is a high drain, medium drain or low drain item. What is a key thing to look out for is the batteries' shelf life, with options typically ranging between three and five years.

More about this story

Every product in our roundup of the best 23A batteries has been tested by the Pocket-lint team, just as you would use them in your day-to-day life.

This way, we were able to understand whether it met the standards of the manufacturer and our own expectations of how a disposable battery should perform.

As we've alluded to already, testing batteries manually can be very time-consuming. Since one bad battery often isn't representative of the entire set, either, it can be difficult to ascertain reliability.

That's why we focused our attention roughly on the household names and most popular 23A batteries, and stuck to calculating an estimate of each unit's lifespan, testing voltage with a multimeter and also using the not-overly-scientific-but-still-useful 'drop' test.

Through this, we discovered some batteries that weren't solid enough to recommend - either they were too costly for the performance levels, or they included duds in the set.

Ultimately, then, our picks and recommendations are made up of batteries that worked as we all expect batteries to do so when we buy them. Since this is a very shallow area when it comes to specs and performance, we also produced mini-reviews to reflect this.

The Pocket-lint team is routinely testing the latest options in each of our buyer's guide, and we'll be revisiting these picks regularly to establish whether or not they remain our top recommendations.

Writing by Conor Allison.