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 ...

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. ...

Unfortunately, not always. The answer to this question is not straightforward, as the simplest testers or chargers can only measure mAh from the charging process. If our charger does not have a dedicated discharging (load) or testing function, its mAh measurement will never be equivalent to the actu ...

A large number of charging standards, standard chargers, slow, fast, Quick Charge, Power Delivery, PPS… It is easy to get lost in the current technologies for charging mobile devices, but it is worth knowing the basic principles of operation as well as the impact of the charger used on the performan ...

New users of chargers may have doubts when their new, advanced Ni-MH battery charger (popular AA batteries) is supposed to charge 4 batteries at 1A, while it is equipped with a power supply rated at 1A. After all, 4 batteries charged at 1A require a total of 4A of current, right? ...

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 ...

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 ...

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 ...

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. ...

Among many of our customers, there is still a belief that the slower we charge a given battery, the better it is for its condition and lifespan. Unfortunately, it is very easy to unknowingly damage your batteries. If we charge new AA batteries with a current of around 200-300 mA, we can be quite sur ...

Definitely no. Completely discharging a Ni-MH battery before each charge effectively reduces its lifespan. Regularly discharging batteries was recommended for old, practically unavailable nickel-cadmium (Ni-Cd) batteries. Performing a forced deep discharge cycle eliminated and minimized the ris ...

We expect reliable performance from hearing aids and implants. In their use, it is extremely important to ensure high-quality power supply. A good battery determines the sound quality and the usage time of the device. This article presents a list of frequently asked questions that we receive from c ...