Does It Make a Difference - 1.35, 1.40, 1.45 Volts

Zinc air I've in mind. A Sekonic meter and my OM1n call for 1.35.
The local Radio Shack has 1.40. Will I go wrong with the
R. Shack 1.40? Dan

Zinc air I've in mind. A Sekonic meter and my OM1n call for 1.35.
The local Radio Shack has 1.40. Will I go wrong with the
R. Shack 1.40? Dan

don't sue me if I'm wrong, but IIRC, batteries loose voltage as they age and
as they are used. I'll bet that if you put a meter on that 1.4 it will give
you a reading of 1.3 anyway.

The 1.35v is a mercury battery, designed for a constant voltage over a
long
life. The zinc air batteries are designed for heavy load and short life
(hearing aids). There is also a possibility that the fumes can cause
damage
to the circuitry if the battery compartment isn't sealed (but I have never
seen any actual data for this).

The problem you might run into is that the meter is designed for a
specific
voltage and may misread if that voltage isn't correct.

I would try contacting Sekonic and see if they have any suggestions or
comments.

I was in watch repair for a few years and some of the old watch batteries
were 1.35v mercury and had to be readjusted for the higher voltage watch
batteries or they would run quite a bit fast.

Bob

Zinc air I've in mind. A Sekonic meter and my OM1n call for 1.35.
The local Radio Shack has 1.40. Will I go wrong with the
R. Shack 1.40? Dan

Kibo informs me that "zeitgeist" stated that:


Zinc air I've in mind. A Sekonic meter and my OM1n call for 1.35.
The local Radio Shack has 1.40. Will I go wrong with the
R. Shack 1.40? Dan

don't sue me if I'm wrong, but IIRC, batteries loose voltage as they age and
as they are used. I'll bet that if you put a meter on that 1.4 it will give
you a reading of 1.3 anyway.

That's true of ordinary carbon or alkaline batteries, but not of mercury
or lithium cells, which keep a very constant voltage until just before
they go completely flat. That's why this can be an issue if you need to
substitute a different battery for a mercury cell.

--
W
. | ,. w , "Some people are alive only because
\|/ \|/ it is illegal to kill them." Perna condita delenda est
---^----^---------------------------------------------------------------

Kibo informs me that "zeitgeist" stated that:


Zinc air I've in mind. A Sekonic meter and my OM1n call for 1.35.
The local Radio Shack has 1.40. Will I go wrong with the
R. Shack 1.40? Dan

don't sue me if I'm wrong, but IIRC, batteries loose voltage as they age and
as they are used. I'll bet that if you put a meter on that 1.4 it will give
you a reading of 1.3 anyway.

That's true of ordinary carbon or alkaline batteries, but not of mercury
or lithium cells, which keep a very constant voltage until just before
they go completely flat. That's why this can be an issue if you need to
substitute a different battery for a mercury cell.

--
W
. | ,. w , "Some people are alive only because
\|/ \|/ it is illegal to kill them." Perna condita delenda est
---^----^---------------------------------------------------------------

Kibo informs me that (Dan Quinn) stated that:

Zinc air I've in mind. A Sekonic meter and my OM1n call for 1.35.
The local Radio Shack has 1.40. Will I go wrong with the
R. Shack 1.40? Dan

Hard to say. At worst, you might lose some accuracy, but you could
probably add a compensation factor to the reading to correct for it.
My advice would to contact Sekonic's service department & ask their
advice.

--
W
. | ,. w , "Some people are alive only because
\|/ \|/ it is illegal to kill them." Perna condita delenda est
---^----^---------------------------------------------------------------

Kibo informs me that (Dan Quinn) stated that:

Zinc air I've in mind. A Sekonic meter and my OM1n call for 1.35.
The local Radio Shack has 1.40. Will I go wrong with the
R. Shack 1.40? Dan

Hard to say. At worst, you might lose some accuracy, but you could
probably add a compensation factor to the reading to correct for it.
My advice would to contact Sekonic's service department & ask their
advice.

--
W
. | ,. w , "Some people are alive only because
\|/ \|/ it is illegal to kill them." Perna condita delenda est
---^----^---------------------------------------------------------------