Jeff writes:

"(2) Average current consumption for 12 VDC systems over 24-hour
period." In other words, the value listed is Amp-hours per day, a
perfectly fine measure of current.

Learn the difference between intensive and extensive units. They do not
equate. Both the amp-hour statement and the footnote are thereby
nonsensical. A footnote of nonsense does not redeem the nonsense being
footnoted, as if they were some kind of inverse nonsense that cancels out.
Your "in other words" is just a blind assumption of what the author meant
to say, but didn't.

You inability to grasp this is in direct contradiction to your claim
of having a PhD in some field of physics or engineering.

Scoffing at the wise is the habit of fools.

I would gladly settle issues based on my credentials, but this is Usenet,
the river of foolishness. Engage at your peril.