Flooded Lead Acid or Lithium?

I hear the hum  of the hertz
Deep within my head.
The engineers think it so
The medicals want to know:
Does it seem to hurt
and
What cycles do you think you’ve got?

I don’t know
But,   It’s In  There
with ear plugs loud and clear.
That The I AM  that I am
Is the buzz within my ear
Is fully loud and clear.

I put the plugs  into my ears
To quiet outside noise.
But instead I get the hum
of energy in my head.
It’s loud  of course
When the outside voice
Is quieted; put to rest.
But what’s the hertz of the hum
Of the life that
Bubbles in my brain.