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AA and AAA battery capacity - what does it depend on? How to choose the highest capacity batteries?
Capacity is one of the most important parameters of a battery. On the one hand, it affects its durability, and on the other hand, it also affects the performance of powered devices. This also applies to the very popular AA and AAA batteries, in which the capacity determines the operating time of the ...
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 used in everyday devices. However, you can find not only basic alkaline cells or NiMH batteries on sale. In this article, we will describe less common variants that have specific properties and are de ...
2025-05-20
AA (R6), AAA (R03), R14, R20 batteries – differences and what is the best way to use them?
Batteries are 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. Knowing the differences between the different types of batteries allows y ...
2025-04-29
How to store batteries to extend their life and what to avoid?
Proper storage of batteries is very important to maintain their optimal performance and often even extend their life. Lack of proper conditions can lead to premature discharge or even leakage of electrolyte, which is dangerous for the powered devices. Batteries come in many types and have very speci ...
2025-03-11
Can we charge regular primary 1.5V batteries?
I found a 3000 mAh AA LR6 alkaline battery. Does this mean that it can be charged normally to this capacity?Unfortunately, charging such batteries does not make sense and we strongly advise against such action - why? We explain in our article. ...
2025-02-27
Another great study of battery and rechargeable battery performance? - Watch out for 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 battery and accumulator tests. Practically every few weeks we can come across a new news, video, or mention of further tests. Often, the winner of one ranking performs very mediocre or even poorly in other tests. What is the reason for such a large dispe ...
2023-01-25
Another test of everActive batteries and accumulators in an accredited Swedish testing laboratory!
everActive batteries and rechargeable batteries are subjected to cyclical laboratory tests. In 2022, another test was carried out, performed by a certified research unit - Intertek Semko AB.Intertek Semko AB, located in Sweden, is an elite laboratory dedicated to, m.in the testing of batteries and a ...
2022-08-17
Internal resistance of the battery / rechargeable battery - an important parameter of the power source
The capacity of a battery expressed in milliampere-hours (mAh) is the main indicator by which most of us compare individual batteries or rechargeable batteries.
Unfortunately, in many cases it is not an ideal unit for assessing the efficiency of a given power source, especially for disposable batte ...
2022-05-11
How to understand the different values of mAh capacity in the specification of a rechargeable battery?
It often happens that when analyzing the technical data of the battery we are interested in, we see, for example, 2 different values of capacity expressed in milliampere-hours - mAh. Why these differences? What is typical, minimum, maximum, nominal, rated capacity? ...
2022-05-11
Have you been doing it wrong all your life? - How to properly install batteries and rechargeable batteries?
Has it ever happened to you that newly installed batteries or charged rechargeable batteries do not give any sign of life?The basket in which the batteries were installed has started to melt, or maybe there has been a battery spill in the power compartment of your device? In this article, we explain ...
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 batteries and LED bulbs? An eco-friendly way to power your devices.
The world is increasingly aware of the negative impact of waste on our environment. In recent months, you may have heard about the announcement of the withdrawal from the sale of traditional batteries by one of the largest retail chains. As an alternative, we are increasingly using rechargeable batt ...
2021-02-02
Great 9V battery test, technology comparison: 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 and Li-ion batteries in size 9V (alkaline battery designation 6LR61). The test consisted in measuring capacitance, energy and recording discharge curves with currents of 50 mA, 100 mA, 200 mA and 5 ...
2020-12-15
EverActive Accredited Alkaline Battery Test Results
In December 2019, our everActive Pro Alkaline batteries were tested for performance by an accredited testing 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
In autumn, we will have some interesting product novelties. One of them is the new PROCELL line of faucets for professional use from the faucet manufacturer Duracell.PROCELL faucets are products using the highest quality materials and state-of-the-art production methods, which guarantee high perform ...
2019-09-25
Alkaline batteries - voltages, sizes, specifications
The popular name of this type of battery comes from the alkaline (alkaline) solutions used in them as an electrolyte. Introduced to the market in the early 1960s, alkaline batteries quickly gained popularity, becoming the most important competitor to zinc-carbon batteries - this trend has been espec ...
2019-07-01
Table of replacement alkaline and silver button batteries (mini) G0-G13
We present an extensive list of replacements for G0 - G13 button alkaline (mini) batteries.Click on the selected symbol in the table to see the offer of a given type of batteryBrowse the full offer:- button alkaline batteries (G3, G4, G10, G13 and others)- silver button batteries (for watches)- lith ...
2019-06-19
Batteries, accumulators, chargers - glossary of terminology
Here you will find explanations of the terms most commonly used in connection with batteries and chargers; Not sure what a term means or how cell capacity is measured? You don't know what internal resistance, termination current are, and the term CC/CV sounds like a cipher? Is the 'primary' battery ...
2019-06-19
History of the battery
The term "battery" was first used in 1748 by Benjamin Franklin to describe an electrically charged glass plate. Between 1780 and 1786, Luigi Galvani demonstrated what we understand today as the basis of knowledge about electricity and electrical impulses, which was the foundation of later research b ...
2019-06-19