Archived posting to the Leica Users Group, 1999/06/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]DT, I don't know. Perhaps it is a business decision. Since the major market is AAs and new lithium batteries for cameras, perhaps they do not sell well enough to make them in Silver Oxide. But I do know there are S76 size Silver Oxide button cells (I know my Olympus XA uses them). BTW, Alkaline batteries are less costly to manufacture than Silver Oxide or Mercury cells. You are 100% correct about Zinc Airs, while they provide constant 1.4v they lose their power quickly. Peter K - -----Original Message----- InfinityDT@aol.com wrote: Evidently then it is because Silver Oxide batteries are closer in discharge characteristics to the Mercury batteries (and basically just a series resistor is needed to adapt them) this is why the CRIS adadptor uses the MS76 (aside from the lucky fact it's also smaller than a PX13/625 and fits inside an adaptor). The big question is, why do the battery manufacturers only supply Alkalines in the PX13/6225 size, and not Silver Oxides? BTW I had a lot of trouble wiith those Zinc-Air Wein cells "replacements". Not only are they expensive, but they go dead in a big hurry. That is, if they're not already dead when you buy them, which was what happened to me. I finally had my Nikon FTn "converted" to take alkalines (this was before I'd heard about the CRIS adaptor) but dealing with the discharge curve is a royal pain. I rarely use the F any more, and if I do I have to check the meter against a different body at intervals and change the EI. DT