A large number of charging standards, standard chargers, slow chargers, fast chargers, Quick Charge, Power Delivery, PPS... You can certainly get lost in the current charging technologies of mobile devices, but it is worth knowing the basic principles of operation as well as the impact of the charge ...

The problem is complex, and the answer is of interest to both users and sellers who face complaints from their customers. We will try to help everyone interested in this topic. ...

Newly minted users of chargers may have doubts when their new, advanced charger for Ni-MH batteries (popular fingers) is supposed to charge 4 batteries with 1A current, while it is equipped with a power supply with a current capacity of 1A. After all, 4 rechargeable batteries charged with 1A require ...

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 ...

Just like last year, we decided to test suspicious rechargeable batteries described as Eneloop Pro, offered through the largest shopping platform in Poland. The price – really "bargain" – over 30% lower compared to the current prices from the official distribution – what could have gone wrong ;) ?La ...

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 ...

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 explai ...

There is currently a rash of different chargers on the market, which, according to the manufacturer's assurance, allow you to measure the mAh capacity of our batteries. Are you sure? In our article, we describe the most common pitfalls, doubts and mistakes made by users when measuring the capacity ...

We point out simple mistakes that often occur, which as a result lead to faster wear of the batteries. Have you ever had new, branded rechargeable batteries last much shorter than they should? Read our guide and perhaps you will avoid disappointment later. ...

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 typica ...

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 of speech processors use a special type of batteries - zinc-air batteries, thanks to their unique design, combine high efficiency and small size. However, they require special treatment. We encourage you to read the following articles on the use of hearing batterie ...

More and more users, following the trend of environmentally friendly solutions, decide to replace disposable batteries, in particular the so-called AA/AAA "sticks" with rechargeable batteries that can be recharged multiple times. We buy branded, capacious Ni-MH batteries, invest in a good charger, a ...

During the holiday season, mosquitoes can be a real nuisance limiting the pleasure of relaxing together. There are more and more UV lamps available on the market, which help to control the number of insects in the vicinity with the help of the emitted ultraviolet light. Below we explain the principl ...

Has it ever happened to you that a new CR2032 lithium battery freshly inserted into the remote control refused to work? Or maybe the device immediately signaled a low charge level despite installing a new battery? If so, you probably like most people considered such a battery to be defective and use ...

Many of our customers still believe that the slower we charge a battery, the better it is for its condition and life. Unfortunately, it is very easy to unknowingly destroy your batteries. If we charge new AA batteries with a current of 200-300 mA, we certainly do not use their full potential, and we ...

The memory effect is characteristic of older Ni-Cd batteries.  The effect of this unwanted phenomenon was a reduction in the usable capacity of the battery.The battery, when discharged, only partially "remembered" the moment of charging. During later use, it became increasingly difficult to use ...