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? ...

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? ...

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 ...

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 ...

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 ...

If you want to replace disposable batteries with Ni-MH rechargeable batteries, it is worth following a few rules that will allow you to take full advantage of the capabilities of the new cells. Following a few simple rules will allow you to use your rechargeable batteries optimally, economically an ...

This is a question that comes up very often in our daily work. It is usually believed that Ni-MH batteries cannot replace disposable batteries due to their lower voltage. However, this applies only to some devices - usually with low power consumption and usually in a configuration where batteries a ...

Every European manufacturer is obliged to provide reliable information on the capacity of batteries.The technological maximum limit of currently achieved capacities for Ni-MH batteries is about 1100 mAh for R03/AAA ('small fingers') and about 2700 mAh for R6/AA ('ordinary fingers') - although even t ...