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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
Are my rechargeable batteries already used up? How to assess the condition, condition and age of your rechargeable batteries?
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. ...
2023-09-19
The higher the capacity of the battery, the better?... Do not necessarily
When choosing rechargeable batteries, the main criteria for our customers are the capacity, possibly the brand and, of course, the price. It is common knowledge that the higher the capacity of such a battery, the better. Such batteries are also clearly more expensive than potentially weaker/less cap ...
2023-09-19
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
AA, AAA and other Ni-MH batteries, Li-ion 18650 and similar batteries - how to interpret the capacity and number of charge cycles given in the specifications
When we buy a rechargeable battery with a capacity of 2600 mAh and a certain number of charging cycles of 500, we are convinced that with occasional use we will be able to enjoy its maximum performance for many years. We often treat the given capacity values or the number of charging cycles as guara ...
2022-10-03
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
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
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
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
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
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