What Are AAAA Batteries Used For? The Complete Guide

what are aaaa batteries used for

AAAA batteries are standard tiny batteries that have many different applications. So, what are AAAA batteries used for? 

They’re used in various portable electronic devices such as calculators, laser pens, and wireless mice. 

Clearly, AAAA batteries are used in tons of everyday electronic devices that help us with our daily activities. 

AAAA batteries, also called Quadruple-A, are 42.55 mm in length with a diameter of around 8.3 mm. 

These alkaline batteries usually weigh 6.5g and produce up to 1.5V power. 

They’re also commonly known as 25 (NEDA/ANSI) and R8D425 (IEC.) If those terms don’t ring a bell, you might’ve heard of Duracell type MX2500 or MN2500 and Energizer type E96. 

With that in mind, let’s get started.

What Are AAAA Batteries?

what are aaaa batteries used for

Other than the above-mentioned applications, these batteries can also power flashlights, smoke detectors, electronics, toys, and more. 

AAAA batteries are small and compact cylindrical batteries that are potent and used to power up portable small electronic devices. 

Usually, these batteries are used in devices that require less power.

They consist of different chemicals like alkaline, zinc, carbon, lithium, etc. These batteries are common worldwide, and you can find them in every household. 

Many major brands produce AAAA batteries. These include companies like Toshiba, Duracell, Nipon, Energizer, and many more. 

Energizer was the first manufacturer of AAAA batteries. They developed this battery to reduce mercury normally found in other battery types.

It was a great environmental movement, and they have now become among the most widely-known brands worldwide.

Different Types of Batteries

what are aaaa batteries used for

AAAA batteries come in various types as they can contain different chemical consistencies. They have different purposes according to the chemicals they are made up of. 

These batteries also have different battery sizes when it comes to capacity and nominal voltage. 

Here are the 5 most common chemical variations of AAAA batteries:

  • The Zinc-Carbon batteries have two names: R8D425 (IEC) and 25D (ANSI/NEDA). 

They have a power capacity and battery shelf life of 300 mAH, and the nominal voltage is 1.50 V. 

  • The Alkaline batteries also have two different names: LDR8D425 (IEC) and 25A (ANSI/NEDA). 

Their typical battery life is 500-600 mAH, and their nominal voltage is around 1.50 V. They are the most long-lasting AAAA batteries.

  • The NiCD batteries are known as KR8D425 (IEC) and have a nominal voltage of 1.25 V.
  • NiMH battery is also called HR8D425 (IEC). 

They have a capacity of 325-500 mAH, and voltage is around 1.25 V.

  • In terms of voltage, Lithium-ion batteries are the strongest as they have 3.7 V, and the capacity is around 160-170 mAH.

These variations of batteries have different battery components.

Specifications and Features of AAAA Batteries

AAAA batteries have dimensions of 8.3 x 42.5 mm, and they are smaller than AAA (10.5 x 44.5 mm) and AA batteries (14.5 x 50.5 mm.) 

As mentioned earlier, AAAA batteries have different variations and labels in accordance with their different chemical compositions. That includes alkaline lithium batteries, NiCd, zinc-carbon, NiMH, and others. 

However, all manufacturers will name the batteries AAAA so that there is no confusion.

They weigh 40% less than AAA batteries (AA batteries) and are 20% thinner and 40% smaller. 

AAAA batteries are compact. At the same time, they aren’t as popular as AA and AAA batteries.

Technical Specifications

A typical AAAA battery will have a nominal voltage of 1.50 Volts, and the capacity will be 500-600 mAH. 

It’ll be able to withstand temperatures from 0°–60°C. 

Its physical dimensions are 8.3 mm (diameter) x 42.5 mm (height). 

Usually, the standard AAAA battery consists of alkaline cells (Alkaline AAAA.)

Rechargeable and Non-Rechargeable AAAA Batteries

Rechargeable Batteries

The most common rechargeable quadruple-A batteries are Lithium-ion, Nickel Metal Hydride, and Nickel Cadmium. 

However, Nickel Cadmium is rarely used because cadmium is considered to be heavy metal. Moreover, it’s known to have toxic components in it. 

Nickel Cadmium batteries can easily give off high currents due to their low internal resistance, but they can discharge power more strongly than Nickel Metal Hydride batteries. 

Plus, they have fewer charging cycles and lower capacity. 

Nickel-cadmium (NiCd) and nickel metal hydride (NiMH) batteries have a 1.2 V nominal voltage. 

Comparing 1.5V alkaline and zinc-carbon batteries to 1.2V NiCD and NiMH batteries is less efficient and inconsistent. 

The real-time capacity of the battery depends on the battery age and discharge rate. 

NiMH batteries are better than NiCD cells because NiCd has toxic components.

Curious how you can get AAAA batteries for free?

Non-Rechargeable Batteries

Non-rechargeable AAAA batteries come with 400-600 mAH or more capacity and 1.5V nominal voltage. 

They are the most common battery available and used worldwide. However, the actual capacity of the primary battery might differ based on its discharge current and parameters.

For instance, the Energizer Quadruple A battery has a capacity of 325 mAH when discharged with a 200 mAH current. On the other hand, its capacity is 680 mAH when discharged with 10 mAH. 

Most producers and consumers use Alkaline AAAA batteries because they perform better and have a higher capacity, longer life, and better output. 

What Are AAAA Batteries Used For?

AAAA batteries are used in many electronic devices with built-in rechargeable batteries, and some electronics use AAAA single-use batteries. 

They’re used worldwide and are ideal for devices requiring less power and compact size batteries. 

Here are some electronic devices that use AAAA batteries:

  • Calculator
  • Flashlight
  • Digital Thermometer
  • Smoke Detectors
  • Electronic Toys
  • Memory Backup
  • Laser Pen
  • Medical Tools

Some devices have various battery options (rechargeable battery or single use), and you can power them using a smart battery charger. 

Benefits of Using AAAA Batteries

Ideal for Everyday Use

There are many private label battery manufacturers that have started producing devices with rechargeable batteries. 

That might be inconvenient for some people that don’t want to have to constantly change out batteries.

Luckily, AAAA batteries are good-sized batteries with direct replacements that are easy to find.

Good Power Output

Since these batteries use quadruple A cells, they offer 500-600 mAH. 

The single-use batteries have a lesser discharge rate. That makes it possible to use these batteries for a long time. 

Durable and Environment Friendly

These batteries can withstand extreme climates and are very durable. They can withstand temperatures from 0°-60°C. 

Also, mercury usage in dry cells was reduced with the introduction of AAAA battery cells, which is better for the environment.


Where can I get AAAA Batteries?

Like any other battery, you can find AAAA batteries in nearby convenience stores or electrical shops. 

You can also shop for AAAA batteries online on Amazon or similar e-commerce websites. 

How do I put AAAA batteries inside a device?

Before inserting a battery inside a device, first inspect the device and look for the + and – signs. Then, carefully insert the battery accordingly.  

Do you want to learn how to put in batteries correctly? 


So, what are AAAA batteries used for? These batteries are commonly used in various electronic devices such as flashlights, remote-control toys, thermometers, etc. 

They are environmentally friendly and can be recharged if the electronic device comes with built-in rechargeable batteries. 

Let us know if you found this article helpful!


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