On Wednesday, Apr 7, 2004, at 21:59 US/Pacific, Herbert Graf wrote:
> They say "D-Sized", they don't say D, I don't see anywhere where they
> say they are single cells.

Oh come now.  There's considerable market pressure on D-sized
performance.  A "D-sized" NiMH battery can't differ that much in
performance from what is available to consumers, either individually or
on a volume to volume comparison, regardless of number of cells or
exact configuration...

A D-NiMH spec sheet says 163g and 32x61mm, so 250 of them is less than
100 lbs of battery, in a package about less than half a meter square
and 6 inches thick (sorry for mixing my units :-), which I didn't think
was nearly enough to be effective for electric propulsion.  (OTHO, I
haven't been paying attention at all to the hybrid cars.  Maybe that's
the whole optimization that has occurred, and you need a lot less
battery than you'd expect if you're only using it for "assist"...
Neat, if so.)

BillW

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