"Dave Plowman (News)" wrote in message
...
In article ,
Sammy wrote:
How does the capacity of a Duracell-brand AA cell (Duracell ordinary
or Duracell ultra) compare to one of the high-capacity NiMH cells
(eg
2100 mAh)?


I am assuming, of course, that any applicance using the cells would
work down to the 1.2 volts of the NiMH.

It really depends on the current being drawn. With high current
devices
which would flatten the NiMH in say an hour of continuous use, the
Duracell might just die earlier. Go to say 6 hours of continuous use,
and
the Duracell will last about 1/3rd longer.

It used to be that with all C, D, and probably AA cells, the battery
useage measurements were made with the assumption that the load was
going to be a prefocus incandescent lamp, i.e. the load was going to be
a flashlight. Seems like times have changed and portable electronics
gizmos are as common as the flashlights.

BTW, today I was reading in Popular Mechanics that in 2008 they will be
using LEDs for auto headlights, something about the Audi might have
them. However for the last five years, red LEDs have been used in tail
lights.

They also had an article on how well the gizmos worked for increasing
the gas mileage on your vehicle. They tried several different gizmos,
the magnets on the fuel lines, and the vortex turbine gizmo in the air
intake, etc., and *none* of them increased the gas mileage. Some even
made it worse! P.T. Barnum was right.

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