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Duracell Specialty Alkaline MN21 Battery 12V, pack of 2 (A23 / 23A / V23GA / LRV08 / 8LR932) designed for use in remote controls, wireless doorbells and security systems

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The A23 and N-cell (E90) batteries possess relatively similar physical dimensions. The former is 10.3 x 28.5 mm, while the latter is 12 x 30.2 mm. Another similarity is that both belong to the wide category of alkaline batteries. However, this does not mean you should randomly install them into any compartment. Leaving the difference in the number of cells aside, the most important problem arises from the voltage gap. 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. These two are nearly identical in both size and internal construction. The dimension of A27 is 8.0 x 28.2 mm, or in other words, its diameter is slightly smaller than A23. It is not a big problem if you plan to install the A23 for low-voltage devices, such as, entry remotes, flashlights, or smart keys. Most devices work at their best as long as the battery fits with the compartment.

Regarding the technical structure, both contain eight cells – LR932 and LR732/LR632. As a result, they produce an equal nominal voltage of 12 volts. The only dissimilarity comes from the double larger capacity of the A23 compared to the A27 (50-60 mAh vs. 20-22 mAh) due to the wider internal volume.

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. 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? Regarding chemistry, A23 belongs to the category of non-rechargeable alkaline batteries. This battery type often appears in small electronic devices such as Bluetooth headsets, video game controllers, cameras, keyless vehicle entry systems, etc. While the sum of two AAA batteries produces 3 volts, the setup of A23 with the same physical size outputs up to 36 volts. In short, you should never think of using them as substitutes for each other. A23 Vs ⅔ AAA

Overview [of special battery types] - VARTA Consumer Batteries". VARTA Consumer Batteries . Retrieved 2017-09-16.

Battery format Left to right: AA, AAA, AAAA, E90 and A23 batteries An open A23 battery showing the LR932 cells with an intact battery This type usually lasts 2-3 years, while some models have a life expectancy of up to 5 years. Many factors affect its lifespan, especially the specified device. How Do I Know The A23 Battery Is Dead? Any battery undergoes aging after a period of use because of energy loss. Regarding A23, the voltage drop to 6 volts means the dead state, which means very little charge left or loss of energy holding. Some obvious signs of this final stage are capacity drops or frequent power outages that cause equipment interruptions. Conclusion

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