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I have a new charger with mAh measurement – does this mean that I can check the capacity of the battery?
Unfortunately, not always. The answer to this question is not clear-cut, because the simplest testers or chargers can only measure mAh from the charging process. If our charger does not have a dedicated discharge (load) or testing function, its mAh measurement will never be synonymous with the actua ...
2023-12-18
Slow or fast charging of your phone or smartwatch? What influence do we have on the charging speed (and life?) of the Li-ion battery in a smartphone, etc.?
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 ...
2023-10-10
How is it that the charger has a 1A power supply, and the charger manufacturer also provides charging 4 batteries with 1A – after all, this gives a total of 4A?!
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 ...
2023-08-18
How to correctly measure the capacity of a 1.2V or 18650 3.7V AA battery in chargers with capacity measurement?
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 ...
2022-01-13
How to use nickel-metal hydride batteries correctly?
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. ...
2022-01-05
What is the actual capacity of the everActive 9V Lithium+ Professional Line Li-ion battery - 500 mAh or maybe 1000 mAh?
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? ...
2021-09-30
AA R6, AAA R03 and other rechargeable batteries made in Ni-MH technology - assessment of their charge level before use. How to interpret charging progress indicators in chargers?
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 ...
2021-09-23
In which devices can we effectively use AA and AAA 1.2V batteries?
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 ...
2021-09-09
Power banks and smart bands - why is it difficult to get 100% charge with a power bank?
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 ...
2021-07-23
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 ...
2021-07-20
Facts and myths about charging Ni-MH batteries. Advice for users of Ni-MH rechargeable batteries. Frequently asked questions and problems.
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 ...
2021-07-05
We choose PowerBank! How to compare the capacity and usability of your power bank? What does the capacity of a power bank really mean?
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 ...
2021-06-24
Why do fresh Ni-MH rechargeable batteries not work in my device or work much worse than disposable batteries?
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 ...
2021-06-17
What is the difference between black eneloops (eneloop pro) and white eneloops, i.e. eneloop vs eneloop pro
Eneloop is a popular and respected brand of Ni-MH batteries. Currently, it belongs to the Panasonic concern, although many remember that they were once signed with the Sanyo brand. We would like to reassure the latter right away - the batteries have not lost their quality and are still produced in t ...
2020-06-24
Does fast charging harm Ni-MH batteries? How to properly charge nickel-metal hydride batteries?
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 ...
2020-04-03
Is it worth discharging Ni-MH batteries before each charge?
Definitely not. Completely discharging the Ni-MH battery before each charge effectively reduces its life. Regular battery discharge was recommended for old, virtually unavailable nickel-cadmium (Ni-Cd) batteries. Performing a forced deep discharge cycle eliminated and minimized the risk of the ...
2020-02-21
Using Hearing Batteries - Frequently Asked Questions
We expect hearing aids and implants to perform reliably. In their use, it is extremely important to ensure high quality power supply. A good battery determines the sound quality and the time of use of the camera.This article presents a list of common questions we receive from customers and the answe ...
2019-05-14
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