- Tips
- technology
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- mAh capacity
- Rated Capacity
- everActive
- comparison
- Durability of rechargeable batteries
- Efficiency of rechargeable batteries
- battery voltage
- Accumulated energy
- Batteries vs rechargeable batteries
- LR03 AAA
- LR6 AA
- eneloop
- AG13 LR1154 LR44
- Delta V
- Charge Cycles
- internal resistance
- charge level
- CR 2032
- memory effect
- accredited test
- SR44 357
- Hearing Batteries 675
- SR626 377
- Watch Batteries
- Polarity
- Mah
- passivation
- LS 14250
- LS 14500
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
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
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
Internal resistance of the battery / rechargeable battery - an important parameter of the power source
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 ...
2022-05-11
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
Have you been doing it wrong all your life? - How to properly install batteries and rechargeable batteries?
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 ...
2022-01-25
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
R6 (AA) Ni-MH 1.2V battery? Or maybe a 1.5V alkaline battery? How about both? 1.5V Li-ion batteries - a revolution in powering devices is coming...
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 ...
2021-07-21
Great 9V battery test, technology comparison: alkaline vs Ni-MH vs Li-ion, which is the best?
This time in our lab we decided to thoroughly test the capabilities of block alkaline batteries, Ni-MH and Li-ion batteries in size 9V (alkaline battery designation 6LR61). The test consisted in measuring capacitance, energy and recording discharge curves with currents of 50 mA, 100 mA, 200 mA and 5 ...
2020-12-15
Lithium-ion cells (Li-ion batteries)
Lithium-ion cells are the future of powering portable and wireless electronics – they are found in smartphones, MP3 players, remote-controlled models, etc. Their feature
They are usually characterized by small dimensions and flat or cylindrical shapes. These inconspicuous cells can store twice as m ...
2019-07-04
Batteries, accumulators, chargers - glossary of terminology
Here you will find explanations of the terms most commonly used in connection with batteries and chargers; Not sure what a term means or how cell capacity is measured? You don't know what internal resistance, termination current are, and the term CC/CV sounds like a cipher? Is the 'primary' battery ...
2019-06-19
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