This is the 11917th most frequent Russian word.
заряжания
The act of charging or loading.
In this sentence, 'заряжания' (charging) is a noun and refers to the act or process of transferring energy to a battery or accumulator.
Процесс заряжания батареи займет около двух часов.
The process of charging the battery will take about two hours.
Here, 'заряжания' denotes the degree or status of the charging process of the device.
Необходимо проверить уровень заряжания устройства.
It is necessary to check the device's charging level.
In this context, 'заряжания' is used to discuss methods or approaches related to speeding up the charging process of batteries.