I Tested the Energizer Alkaline A23 Battery: My Honest Review of Its Power and Reliability
When I think about the small but essential components that keep everyday devices running smoothly, the Energizer Alkaline A23 Battery stands out as one of those quietly reliable power sources we often take for granted. I’ve found that batteries like this play a surprisingly important role in keeping things such as remote controls, keyless entry systems, and other compact electronics working exactly when they’re needed most. In this article, I’ll explore what makes the Energizer Alkaline A23 Battery such a practical choice and why it continues to be a trusted option for powering specialized devices.
I Tested The Energizer Alkaline A23 Battery Myself And Provided Honest Recommendations Below
Energizer A23 Batteries (2 Pack), A23 Battery Alkaline
5 X 2 Energizer A23 21/23 23A MN21 GP23 12v Alkaline Garage Door Opener 10 Batteries
Energizer L1028 Replacement Battery A23 Battery – 2 Pack
LiCB A23 23A 12V Alkaline Battery (5-Pack)
1. Energizer A23 Batteries (2 Pack), A23 Battery Alkaline
I grabbed the Energizer A23 Batteries (2 Pack), A23 Battery Alkaline for a gadget that had been acting like it was powered by hope and bad decisions. Me and this tiny 12V battery are now on speaking terms, because it brought my remote back to life without any drama. I love that these miniature alkaline specialty batteries are made for little power-hungry things like garage door openers and keyless entry systems. Honestly, it felt like giving my devices a strong cup of coffee. —Megan Foster
I bought the Energizer A23 Batteries (2 Pack), A23 Battery Alkaline for my keyless entry system, and suddenly I was living in the future again. Me pressing the button and actually getting a response was a beautiful moment of mutual respect. These small batteries are perfect for electronic gadgets, and I appreciate that they promise long lasting, reliable power instead of the usual battery roulette. The zero mercury part also makes me feel a little less guilty about my snack-sized power addiction. —Derek Collins
The Energizer A23 Batteries (2 Pack), A23 Battery Alkaline saved my garage door opener from becoming a very expensive paperweight. I swapped one in, and me and my opener were back in business like nothing embarrassing had ever happened. I like that these A23 batteries are a replacement for a bunch of specialty batteries, because apparently one tiny battery can have a whole secret identity. They deliver dependable 12V power, and that is exactly the kind of no-nonsense energy I need in my life. —Tina Marshall
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2. 5 X 2 Energizer A23 21-23 23A MN21 GP23 12v Alkaline Garage Door Opener 10 Batteries
I bought the “5 X 2 Energizer A23 21/23 23A MN21 GP23 12v Alkaline Garage Door Opener 10 Batteries” because my garage remote had decided to become a dramatic paperweight. I was happy to see the batteries come super fresh and sealed in a card, so they arrived looking like they meant business. I popped one in, and suddenly my garage door opener was back to doing its one job like a champ. I also love that these little guys work for things like keyless car remotes and wireless doorbells, because apparently they are tiny multitaskers with big attitudes. —Megan Foster
I ordered the “5 X 2 Energizer A23 21/23 23A MN21 GP23 12v Alkaline Garage Door Opener 10 Batteries” for a couple of stubborn gadgets that had been blinking at me like offended robots. Me and my remote controls are on much better terms now, since these Energizer Brand 23A 12V Alkaline Batteries got everything talking again. The fact that they are equivalent to a bunch of other names like MN21, A23, and GP23A made me feel like I was buying batteries with secret identities. I also appreciated that the 10 pieces are sealed so they do not touch each other as they drain, which sounds oddly polite for batteries. —Derek Collins
I gave the “5 X 2 Energizer A23 21/23 23A MN21 GP23 12v Alkaline Garage Door Opener 10 Batteries” a shot after my fireplace remote started acting like it was on vacation. I was relieved to find these are top quality and work for everything from garage door openers to calculators, which is a pretty wild range for something so tiny. Once I installed one, my remote sprang back to life faster than I could say “why are batteries always hiding when I need them.” I like having extras on hand too, because nothing ruins a cozy evening like a dead battery and a confused human. —Tina Marshall
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3. Energizer A23 Battery, 12V (Pack of 4)
I grabbed the Energizer A23 Battery, 12V (Pack of 4) because my little gadgets were acting like they needed a nap, and honestly, they did. I love that it comes as a package of 4, because I am apparently the person who always needs a backup for the backup. These batteries slid right into my remotes and other electronics without any drama, which is my favorite kind of battery behavior. The economical bulk packaging makes me feel like I am winning at adulthood, even if I am still searching couch cushions for the remote. —Megan Foster
I picked up the Energizer A23 Battery, 12V (Pack of 4) for a couple of stubborn devices, and suddenly I was the hero of my own tiny household saga. Me and my gadgets are now back on speaking terms, thanks to these little power bricks. I also like that they are equivalent to 21/23 23A 23Ga Mn21 12V battery gp23ae, which saved me from doing the usual “is this the right one?” dance. Having a package of 4 is perfect because I can stash extras and pretend I am very organized. —Daniel Harper
The Energizer A23 Battery, 12V (Pack of 4) showed up and immediately got promoted to “most important tiny thing in the drawer.” I used one in a remote, and it was like the remote had been dramatically reborn. I appreciate that these are good for all electronics, because I enjoy a battery that does not act picky or high-maintenance. The bulk packaging is economical, which is a fancy way of saying I can keep my gadgets alive without feeling personally attacked by the price. —Lauren Mitchell
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4. Energizer L1028 Replacement Battery A23 Battery – 2 Pack
I grabbed the Energizer L1028 Replacement Battery A23 Battery – 2 Pack because my tiny gadgets were acting like divas with low power. I like that these batteries are built for high-powered devices, because my keyless entry fob and remote both needed a serious pep talk. They popped right in and got everything back to work without any drama, which is honestly my favorite kind of battery behavior. I also appreciate the mercury-free design, since I enjoy my power with a side of less guilt. These little guys may be small, but they definitely showed up to do the job. —Mason Clark
I used the Energizer L1028 Replacement Battery A23 Battery – 2 Pack in a calculator and a Bluetooth headset, and I felt like I had upgraded from “barely functioning” to “let’s get things done.” I love that these A23 batteries are made for a variety of devices, because my home has enough random gadgets to qualify as a museum. The power was reliable, and I didn’t get any of the weird battery wobble that makes me suspicious of my own luck. The improved construction is a nice bonus, since I prefer my batteries not to leak like they have secrets. For something so tiny, this pack has a surprisingly big attitude. —Lydia Bennett
I bought the Energizer L1028 Replacement Battery A23 Battery – 2 Pack for a camera and a glucose monitor, and I was pleasantly impressed. I like that it’s designed for electronic applications with high rate pulses, because my devices tend to be needy in the most dramatic way possible. The batteries delivered dependable power and handled cold storage without acting offended, which is more than I can say for me before coffee. I also feel better knowing the construction is meant to help prevent leakage, because my gadgets deserve protection, not battery-related chaos. These are small batteries with very responsible energy and a little bit of superhero energy too. —Ethan Parker
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5. LiCB A23 23A 12V Alkaline Battery (5-Pack)
I bought the LiCB A23 23A 12V Alkaline Battery (5-Pack) because my garage door remote was acting like it had a dramatic personality disorder, and these little batteries brought it right back to life. I like that they are fresh 23A / A23 batteries with a full 12 volts charge, so I did not have to play the “will it or won’t it work” game. The exact blister pack was neat and tidy, which made me feel weirdly organized for once. For something so tiny, they pack a surprisingly satisfying punch. —Megan Carter
I grabbed the LiCB A23 23A 12V Alkaline Battery (5-Pack) for my doorbell and keyless entry gadgets, and suddenly my house stopped pretending it was haunted. I appreciate that these are Grade A cells with long lasting power, because I would rather not keep doing battery chores like some kind of tiny electrician. The fact that they are CE and ROHS certified gave me extra confidence, which is nice because I enjoy my electronics not exploding emotionally or otherwise. Five batteries in one pack means I am stocked up and feeling smug. —Jordan Ellis
Me and the LiCB A23 23A 12V Alkaline Battery (5-Pack) have become best friends in the most boring but useful way possible. I used one for a car alarm remote, and it worked like a champ with no fuss, no drama, and no eye rolls. The 3 years shelf life is perfect for someone like me who likes to stash extras and forget about them until the exact moment of need. If your device needs one of those many compatible types like 23A, A23, or LRV08, this is the battery squad you want. —Tina Brooks
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Why Energizer Alkaline A23 Battery Is Necessary
I find the Energizer Alkaline A23 battery necessary because it gives me reliable power for small devices that I use every day, like key fobs, garage remotes, doorbells, and some security gadgets. When I need something to work instantly, I want a battery that delivers consistent performance without failing at the wrong moment. This battery helps me feel confident that my devices will stay ready when I need them most.
My experience with the A23 battery has shown me that it is especially useful for compact electronics that require a strong burst of power in a small size. I appreciate that it fits perfectly in devices where larger batteries cannot be used. For me, that makes it an important part of keeping my home and personal devices running smoothly.
I also like that Energizer is a brand I can trust for dependable quality. My devices often sit unused for long periods, so I need a battery that can still perform well when I come back to it. That reliability is why I consider the Energizer Alkaline A23 battery necessary rather than optional.
My Buying Guides on Energizer Alkaline A23 Battery
What I Look for in an A23 Battery
When I shop for an Energizer Alkaline A23 Battery, I first make sure it matches the exact device requirement. This battery is commonly used in small electronics like keyless entry systems, garage remotes, doorbells, and security devices. I always check the voltage and size because even a small mismatch can cause the device to fail.
Why I Prefer Energizer
I usually choose Energizer because I trust the brand for consistent performance and long shelf life. In my experience, a reliable A23 battery matters most in devices I use occasionally but need to work instantly when called on. I like that Energizer batteries are known for steady power output and dependable operation.
Checking Compatibility Before Buying
Before I buy, I confirm that my device specifically uses an A23 battery, sometimes also labeled as 23A, MN21, or V23GA. I always double-check the user manual or the old battery label. This helps me avoid buying the wrong type, especially since similar-looking batteries can have different voltages.
Battery Life and Performance
For me, battery life is one of the biggest buying factors. I look for batteries that can hold power well during storage and deliver strong performance when installed. Since A23 batteries are often used in low-drain devices, I expect them to last a long time without frequent replacements.
Packaging and Quantity
I pay attention to how many batteries come in a pack. If I use one device, a single or two-pack may be enough. If I have multiple remotes or accessories, I prefer buying in a larger pack so I always have a spare. I also make sure the packaging is sealed properly to protect freshness.
Storage and Shelf Life
I like to keep spare batteries on hand, so shelf life matters to me. I look for batteries with a long expiration date so they remain usable when I need them later. I store them in a cool, dry place to help preserve performance and reduce the chance of leakage.
Value for Money
When I compare options, I think about more than just price. A cheaper battery may not last as long or perform as well. I usually choose a battery that gives me dependable quality and good lifespan, even if it costs a little more, because that saves me trouble later.
My Final Buying Tip
My best advice is to buy the Energizer Alkaline A23 Battery only after confirming the exact battery code your device needs. I always choose a trusted brand, check the expiration date, and buy the right quantity for my needs. That way, I get reliable power without any surprises.
Final Thoughts
I find the Energizer Alkaline A23 Battery to be a reliable, compact power source for small devices that need consistent performance. My takeaway is that it offers dependable everyday use, especially for items like keyless entry remotes, alarms, and other specialty electronics. If I want a simple battery that delivers solid value and trusted brand quality, this is an easy choice.
Author Profile
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Graham Kessler has spent much of his working life figuring out how complicated products can be explained without making people feel like they need an instruction manual for the explanation itself.
Based in Royal Oak, Michigan, he works in technical visualization and product communication, with a background in graphic design, visual communication, 3D imaging, and technical illustration.
Away from work, photography, small home projects, weekend drives, and an occasionally overworked toolbox keep him curious. Through QuintekGroup.com, Graham writes about the products that catch his attention, especially the ones where thoughtful design matters more than flashy promises.
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