Re: Mercury battery replacement (Was RE: Kodak HIE slides)

[Clive Warren <Clive.Warren@xxxxxxxxxxxxx>]

At 8:39 am -0700 28/2/00, Gary Hall wrote:

>>BTW, there's another EU-rule that may cause some problems for
>>photographers: The production of certain batteries containing mercury
>>isn't allowed anymore. In the future it might get difficult to find
>>batteries e.g. for most of the still popular Prakticas :-(
>
>>Eckhard
>
>	I can't be 100% sure, but I seem to remember a U.S. manufacturer of a
>replacement for the mercury batteries. I'll let you know if I find them.
>
>-Gary


Most mercury oxide alternatives/replacements are alakaline batteries.
These have a different internal resistance and discharge curve - oh yes,
and they are different voltages.  Apart from that they are identical ;-)

If the meter has a "bridge" style elctronic circuit then using different
voltage batteries will not make much difference to meter readings.
Otherwise expect significant metering problems which will become gradually
worse as the alkaline batteries discharge.





All the best,

             Clive   http://www.cocam.co.uk
                     Photographic Services, Filters and Equipment, Infrared FAQ
                            http://clive.bel-epa.com
                            Adventures in Cyberspace - Digital Art and Photos


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