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 ...

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? ...

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 ...

Currently, there is a surge of various chargers on the market that, according to the manufacturer's assurances, allow for measuring the mAh capacity of our batteries. But is that really the case? In our article, we describe the most common traps, doubts, and mistakes made by users when measuring the ...

We point out common simple mistakes that ultimately lead to faster wear of rechargeable batteries. Have you ever experienced that new, branded rechargeable batteries last much shorter than they should? Read our guide, and you may avoid later disappointment. ...

The modern everActive battery, which is the equivalent of a typical 9V block battery, has a declared capacity of 500 mAh, but the inquisitive will notice that it consists of two Li-ion cells with a capacity of 500 mAh each.So shouldn't the total capacity of this battery be set at 1000 mAh? ...

Ni-MH rechargeable batteries cause much more problems when assessing the current state of charge than alkaline or Li-ion batteries.While in the case of typical disposable batteries or Li-ion rechargeable batteries, we can orientate the level of charge of the cells and their condition based on the vo ...

As you know from our other publications, 1.2V Ni-MH batteries, in particular the typical R6 (AA) and R03 (AAA) batteries, function very well in most devices, being an ecological and economically justified replacement for disposable 1.5V batteries. On a daily basis, we use devices that tolerate worki ...

Many of you have probably experienced a situation when when trying to charge a small portable device (smart band, smart watch) from your power bank, it is difficult to get 100% charged, and sometimes the power bank turns off after just a few seconds, leaving our device discharged. Why does a typical ...

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 ...

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 ...

We present a practical guide that will allow you to get to know Ni-MH rechargeable batteries better. We recommend reading it to both beginners and advanced users.Have you ever had a fresh battery pack that doesn't want to charge when you take it out of the device, or maybe the charging turns off alm ...

Powerbanks are devices that have achieved great popularity in a few years. Manufacturers outdo each other by adding new features to devices, increasing their power, increasing their capacity, etc. The mentioned capacity of the powerbank is the main criterion for users according to which they choose ...

Hearing aids and cochlear implants use a special type of battery - zinc-air batteries, which, due to their unique design, combine high efficiency with small size. However, they require special handling. We encourage you to familiarize yourself with the articles below regarding the operation of heari ...

More and more users, following the trend of eco-friendly solutions, are opting to replace disposable batteries, especially the so-called "AA/AAA" batteries, with rechargeable batteries that can be charged multiple times. We buy branded, high-capacity Ni-MH rechargeable batteries, invest in a goo ...

Recently, we have received alarming information from our customers and readers that questionable quality Panasonic Eneloop batteries have appeared on the market. After analyzing the information received, we made a controlled purchase of batteries on one of the auctions on the most popular site in Po ...

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 ...

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 ...

In the article "Puls Biznesu," the history of the company Baltrade and its current situation in connection with the developing COVID-19 pandemic is described. Michał Seredziński, the vice president of the board, reveals what the plans are for the coming years. "The Gdańsk electronics wholesaler i ...

Eneloop is a popular and respected brand of Ni-MH batteries. It currently belongs to the Panasonic group, although many remember that they were once branded as Sanyo. We would like to reassure those last ones - the batteries have not lost quality and are still produced in the same factory in Japan. ...