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Smitty Two

In article ,
wrote:

On Thu, 02 Jul 2009 08:36:43 -0700, Smitty Two
wrote:

In article ,
"Percival P. Cassidy" wrote:

The Daring Dufas wrote:

Ya know, one day someone will build a drill that runs
on 120 volts.

The trouble is that the 120-volt power packs are so large that they have
to be housed somewhere else and people have to use power cords to
connect the tool to the power source. Not always very convenient.

Perce

I think DD was making a little joke, there, and referring to 120 VAC.
But a 120 volt battery pack could be made very, very small, if you don't
care about pesky details like mAh ratings.

Considering that it would require about 60 cells to get that voltage,
it would be hard to make it small, even if the capacity were very
limited.

Given that a standard rechargeable cell is 1.2 volts, I'd say it would
take 100 of them. Or were you talking about inverting to AC? Either way,
who said they had to be AA or AAA or even AAAA size? Batteries come
pretty darn small these days, far smaller even than a typical coin cell.