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How are AA batteries made? The production process from the inside to the casing – behind the scenes of battery manufacturing
AA batteries are commonly used in homes, offices, and industry – their demand is constantly growing. To meet the increasing demand, manufacturers are implementing more advanced, automated production lines. The process of manufacturing AA batteries, although seemingly simple, involves many precise st ...
2025-06-24
Battery capacity of AA and AAA - what does it depend on? How to choose batteries with the highest capacity?
Capacity is one of the most important parameters of a battery. On one hand, it affects its durability, and on the other hand, it also impacts the performance of the powered devices. This also applies to the very popular AA and AAA batteries, where capacity determines the operating time of the equipm ...
2025-05-20
Unusual types of AA batteries and accumulators
AA batteries and accumulators, due to their size, are very popular, commonly used sources of energy, utilized in everyday devices. However, in the market, one can find not only basic alkaline cells or NiMH batteries. In this article, we will describe less common variants that have specific propertie ...
2025-05-20
AA (R6), AAA (R03), R14, R20 batteries – differences and what they are best used for?
Batteries are an essential part of everyday life – they power remote controls, toys, watches, and even industrial equipment. Choosing the right type of battery can affect the comfort of using the device, its performance, and operating costs. Understanding the differences between the various ty ...
2025-04-29
How to store batteries to extend their lifespan and what to avoid?
Proper storage of batteries is very important for maintaining their optimal performance, and often even extending their lifespan. Lack of appropriate conditions can lead to premature discharge or even electrolyte leakage, which is dangerous for powered devices. Batteries come in many types and have ...
2025-03-11
Can regular 1.5V batteries be charged?
I found an AA LR6 alkaline battery with a capacity of 3000 mAh. Does this mean it can be normally charged to this capacity?
Unfortunately, charging such batteries makes no sense and we definitely advise against such action - why? We explain in our article. ...
2025-02-27
Another great study on the performance of batteries and accumulators? - beware of the 7 deadly sins committed by testers. When is a test reliable/valuable? Check out our cheat sheet.
On the Internet, we can find a large number of tests of batteries and accumulators. Practically every few weeks we can come across a new news item, video, or mention of further tests. Often, the winner of one ranking performs very average or even poorly in other tests. What causes such a large discr ...
2023-01-25
Another test of everActive batteries and accumulators in an accredited Swedish research laboratory!
Batteries and accumulators everActive are subjected to periodic laboratory tests. In 2022, another test was conducted by a certified research unit - Intertek Semko AB.
Intertek Semko AB, located in Sweden, is an elite laboratory engaged in, among other things, testing batteries and accumulators. It ...
2022-08-17
Internal resistance of the battery / accumulator - an important parameter of the power source
The capacity of a battery/accumulator expressed in milliampere-hours (mAh) is the main indicator by which most of us compare individual batteries or accumulators. Unfortunately, in many cases, it is not an ideal unit for assessing the performance of a given power source, especially for disposable ba ...
2022-05-11
How to understand the different mAh capacity values in the specification of a battery or accumulator?
It often happens that when analyzing the technical data of a battery we are interested in, we see, for example, 2 different capacity values expressed in milliampere-hours - mAh. Where do these differences come from? What is typical capacity, minimum, maximum, nominal, rated? ...
2022-05-11
Have you been doing it wrong your whole life? - how to properly install batteries and rechargeable batteries?
Have you ever experienced that newly installed batteries or charged rechargeable batteries show no signs of life? The compartment where the batteries were installed started to melt, or perhaps there was a battery leak in the power chamber of your device? In this article, we explain what to pay atten ...
2022-01-25
R6 (AA) Ni-MH 1.2V battery? Or maybe a 1.5V alkaline battery? How about both? 1.5V Li-ion batteries - a revolution in powering devices is coming...
The problem with alkaline batteries is that in devices with high power consumption, they are very often inefficient and discharge quickly (the voltage drops very quickly) and need to be replaced frequently. Ni-MH batteries, on the other hand, are ideal for devices with high power consumption. Unfort ...
2021-07-21
LR6 AA alkaline batteries - why is the capacity [mAh] [Ah] not or is given very rarely in the case of disposable (non-rechargeable) batteries?
We are used to comparing the value of capacity, expressed in milliampere-hours [mAh], which is given in virtually all commercially available batteries.However, on disposable batteries, in particular typical LR6 AA, LR03 AAA batteries, specialized batteries, or those dedicated to hearing aids, such i ...
2021-07-20
How to deal with used batteries and accumulators? An eco-friendly way to reduce the amount of hazardous waste.
The world is increasingly aware of the negative impact of waste on our environment. You may have heard about the announcements of one of the larger retail chains withdrawing traditional batteries from sale. As an alternative, we are increasingly using rechargeable batteries that allow for multiple r ...
2021-02-02
Great test of 9V batteries, comparison of technologies: alkaline vs Ni-MH vs Li-ion, which is the best?
This time in our lab, we decided to thoroughly test the capabilities of block alkaline batteries, Ni-MH rechargeable batteries, and Li-ion in the 9V size (the designation for the alkaline battery is 6LR61). The test involved measuring capacity, energy, and recording discharge curves at currents of 5 ...
2020-12-15
Results of the accredited test of everActive alkaline batteries
In December 2019, our everActive Pro Alkaline batteries were tested for performance by an accredited research laboratory in Poland. The Central Laboratory of Batteries and Cells in Poznań (CLAiO) is a specialized scientific unit with many years of experience in the field of chemical power sources. T ...
2019-12-12
New PROCELL battery line from Duracell
This autumn, we have several interesting product novelties waiting for us. One of them is the new line of PROCELL professional application batteries from battery manufacturer Duracell.
PROCELL batteries are products that use the highest quality materials and the most advanced production methods, whi ...
2019-09-25
Alkaline batteries - voltages, sizes, specifications
The popular name for this type of battery comes from the alkaline solutions used in them as an electrolyte. Introduced to the market in the early 1960s, alkaline batteries quickly gained popularity, becoming the main competitor to zinc-carbon batteries - this trend has been especially noticeable rec ...
2019-07-01
Table of substitutes for alkaline and silver button batteries (mini) G0-G13
We present a comprehensive list of substitutes for alkaline button batteries (mini) G0 - G13.
Click on the selected symbol in the table to see the offer of that type of battery
Browse the full offer:
- alkaline button batteries (G3, G4, G10, G13 and others)
- silver button batteries (for watches)
- ...
2019-06-19
Batteries, accumulators, chargers - terminology glossary
Here you will find explanations of the terms most commonly used in connection with batteries and accumulators as well as chargers; do you not know what a term means or how to measure the capacity of cells? Do you not know what internal resistance is, termination current, and does the term CC/CV soun ...
2019-06-19












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