Mercury Cells

[Carlo G]

I would like to know how long for is possible to store, and in wich
conditions (temperature), the out of production mercury cells 1.35Volts
PX625.
They are infact now rare, due to the mercury contained iside that creates
enviroment contamination problems. On the other hand it is no easy to obtain
with other batteries the same perfrmances on some apparatus, due the
constant voltage output.
Considering that I still have a couple of PX625, I would like to know how
long may I expect to have them ready to work with my exposure meter Gossen
Lunasix3 that accepts also the new alkaline 625 but showing no useful
indications due the different voltage ( using two PX625 there is a
difference of plus 0.3 Volts).

Is there any serious adapter to use with different battery type? I was
thinking to choose Silver-oxide cells and do not take in consideration
air-zinc technology because of the short life of cells: less than one year,
even if you do not use the meter, from the moment you lift the label.

MOST IMPORTANT: How can I manage the mercury exausted cells? Can I put them
in the "normal" exausted batteries bin?

Thanks. Carlo

 

[Robert Baer]

Carlo G wrote:

I would like to know how long for is possible to store, and in wich
conditions (temperature), the out of production mercury cells 1.35Volts
PX625.
They are infact now rare, due to the mercury contained iside that creates
enviroment contamination problems. On the other hand it is no easy to obtain
with other batteries the same perfrmances on some apparatus, due the
constant voltage output.
Considering that I still have a couple of PX625, I would like to know how
long may I expect to have them ready to work with my exposure meter Gossen
Lunasix3 that accepts also the new alkaline 625 but showing no useful
indications due the different voltage ( using two PX625 there is a
difference of plus 0.3 Volts).

Is there any serious adapter to use with different battery type? I was
thinking to choose Silver-oxide cells and do not take in consideration
air-zinc technology because of the short life of cells: less than one year,
even if you do not use the meter, from the moment you lift the label.

MOST IMPORTANT: How can I manage the mercury exausted cells? Can I put them
in the "normal" exausted batteries bin?

Thanks. Carlo

Mercury cells usually lasted 1-2 years at room temperature, depending
on useage profile.
I would suggest you get some dried (moisture baked out) silica gel and
place that with the cells into a sealed container (a xip lock baggie
comes to mind); squeeze out the air prior to seal.
Then put that bag in another, also squeezing out the air prior to
seal.
Place that into a refrigerator - not the freezer, as the low
temperature may cause the moisture in the cells to crystalize and
destroy them.
One then should be able to store them 5 or so years and have
reasonable expectation that most would still be good.

 

[WayneL]

Try the following sci group there alway very good for battery q&a

sci.chem.electrochem,sci.chem.electrochem.battery,sci.electronics.design











Wayne

"Carlo G" <not@vaible.it> wrote in message
news:crh25t$du2$1@serv1.iunet.it...

I would like to know how long for is possible to store, and in wich
conditions (temperature), the out of production mercury cells 1.35Volts
PX625.
They are infact now rare, due to the mercury contained iside that creates
enviroment contamination problems. On the other hand it is no easy to
obtain
with other batteries the same perfrmances on some apparatus, due the
constant voltage output.
Considering that I still have a couple of PX625, I would like to know how
long may I expect to have them ready to work with my exposure meter Gossen
Lunasix3 that accepts also the new alkaline 625 but showing no useful
indications due the different voltage ( using two PX625 there is a
difference of plus 0.3 Volts).

Is there any serious adapter to use with different battery type? I was
thinking to choose Silver-oxide cells and do not take in consideration
air-zinc technology because of the short life of cells: less than one
year,
even if you do not use the meter, from the moment you lift the label.

MOST IMPORTANT: How can I manage the mercury exausted cells? Can I put
them
in the "normal" exausted batteries bin?

Thanks. Carlo