Batteries are used in many ways in our lives and are used in various electronic devices such as controllers, watches, cameras and many other gadgets. But have you ever wondered how long a AA and AA battery lasts and how we can make the most of them? In this article from EDC, we will examine the lifespan of AA and AA batteries, their expiration dates and important tips for extending their lifespan.

What is a battery?

A battery is a device that consists of one or more electrochemical cells with external connections and is used to power electrical devices such as flashlights, mobile phones and electric cars. The history of the discovery of the battery dates back to the Parthian era in Ctesiphon (near modern-day Baghdad).

Do batteries have an expiration date?

Battery expiration date refers to the time when a battery has worn down to the point where it can no longer provide the energy needed to function optimally. This expiration date depends on factors such as the type of battery, how it was stored, and environmental conditions. Generally, batteries have an expiration date that is printed on the packaging or on the battery itself.

How do I know when my battery’s expiration date is?

The battery expiration date is usually printed on the packaging or on the battery body in month and year format. For example, if the expiration date is 03/2026, it means the battery will be good until the end of March 2026. Some battery manufacturers have specific expiration date markings that may be explained in the manual or on their website.

Rechargeable batteries have expiration dates too!

Rechargeable batteries, such as rechargeable AA batteries, also have an expiration date, but they usually last longer than non-rechargeable batteries. These batteries can be recharged multiple times, but their capacity decreases over time and with increasing charge cycles. The expiration date of a rechargeable AA battery is printed on the packaging or body.

How long do different types of batteries last?

AA batteries usually have an expiration date of 3 to 5 years from the date of manufacture, depending on the type and brand of battery. Alkaline batteries usually have a longer expiration date and can be stored for up to 10 years or more under proper conditions. Nickel-cadmium and nickel-hydride batteries, on the other hand, have a shorter expiration date and usually last about 2 to 5 years.

Below is a table of the lifespans of different types of batteries:

In general, to ensure performance and safety, it is important to pay attention to the expiration date of batteries and not use expired batteries.

Is the expiration date the same as the battery life?

Expiration date and battery life are two different concepts. Battery life refers to the length of time that a battery can provide energy and usually depends on how it is used and the conditions of storage. While the expiration date refers to the time when the battery can no longer function effectively. Therefore, a battery may not have passed its expiration date yet, but its life has been reduced due to improper use.

Why does battery life decrease?

Battery life decreases for various reasons, each of which depends on the type of battery and the conditions of its use. Here are some of the most important factors that affect battery life:

Discharge and charge cycles: Every time a battery is charged and discharged, the chemical structure inside it changes. These repeated reactions can lead to a decrease in battery capacity.
Oxidation and corrosion: During use, the chemicals inside the battery can oxidize and form corrosion that prevents the movement of ions and reduces the battery’s efficiency.
Temperature conditions: High or low temperatures can affect battery performance. At high temperatures, the battery may degrade more quickly, and at low temperatures, its capacity may decrease.
Self-discharge: All batteries have some self-discharge, meaning they gradually lose capacity even when not in use. Rechargeable batteries usually have a higher self-discharge rate.
Improper use: Improper use of batteries, such as mixing new and old batteries or using the wrong type of batteries, can shorten their lifespan.
Build quality: The quality of the materials and construction of a battery also has a big impact on its useful life. Low-quality batteries tend to have a shorter lifespan.
Tips to extend battery life

To extend the life of AA and AA batteries, you can use the following tips:

Storage at the right temperature: Batteries should be stored in a cool, dry place. High temperatures can shorten their life.
Use the right battery: If your device requires AA batteries, be sure to use AA batteries. Using the right type of battery is crucial for optimal device performance.
Check expiration dates: Always check the expiration date and replace old batteries.
Charge regularly: If you use rechargeable batteries, charge them regularly to prevent their capacity from decreasing.
Use the same type of battery: If your device requires two or more batteries, use the same type of battery. Mixing old and new batteries or using different brands in the same device can lead to poor performance and reduced battery life. It is best to use only batteries that are in the same package and have the same expiration date.

EDC batteries are known as an excellent choice for powering various electronic devices, with outstanding features such as long life, environmental friendliness and excellent performance. These batteries are designed in various types of alkaline and zinc, with various capacities for use in toys, remote controls, flashlights and small and large devices.

EDC batteries are free of harmful substances such as mercury and cadmium, and with proper packaging and a long expiration date, they are a safe option for long-term use. To buy batteries from the reputable EDC brand, see the variety of products of this brand.

Frequently Asked Questions
Why do some batteries last longer than others?

Various factors such as the type of raw materials, battery design and production method can affect the durability of the battery. For example, alkaline batteries typically last longer than zinc-carbon batteries.

How can you protect batteries from extreme temperatures?

To protect batteries from extreme temperatures, you should store them in an environment with a suitable temperature (between 20 and 25 degrees Celsius) and avoid placing them in places where they are exposed to direct heat or extreme cold.

Do AA and AA batteries have the same expiration dates?

Yes, AA and AA batteries have the same expiration dates. They usually have the same expiration dates due to their similar design and materials, although their lifespans may vary depending on the type and brand.