prepositional phrases - Use/nonuse of articles in 'a state of residual charge of battery of a microphone at a...'

I know you put 'a', 'an', or 'the' for countable nouns.

But I sometimes see some phrases without the articles when they are supposed to be included.

For example,

a state of residual charge of battery of a microphone at a ..

I think that the battery is a countable noun so it should be like "a state of residual charge of a battery of a .."

But readability is much better without 'a' in front of the battery.

So my question is, do you omit articles when there are too many "of" in one sentence?