Yikes! I didn't look at the discharge curve. I thought all silver
oxide were pretty flat but that isn't so. Looks like Eveready 303H is
the best bet. Tim's original paper is available on Mark's site:
<olympus.dementia.org/Hardware/PDFs/357BatteryData.pdf>
I don't know how to interpret the curves for all the other batteries
there not knowing what the current draw is of the various cameras. I
seem to recall that JH said the OM-2s and original OM-4 were highest at
about 8 mA.
Chuck Norcutt
Moose wrote:
> Chuck Norcutt wrote:
>> I don't know where the best place is to buy any more but the original
>> Everready 357s are no longer made. The replacement is called 357/303 or
>> 367/303H. Note that the 303H is rated at 175 mAh while the 303 is rated
>> only 150 mAh.
>>
>
> For OM use, it's not the capacity, it's the curve. The 357/303 has a bad
> curve, dropping continuously. It will fall below the minimum for shutter
> operation, leading to shutter lock-up, long before using up all the
> capacity. <http://data.energizer.com/PDFs/357-303.pdf>
>
> The 357/303H has a nice flat curve out to 600 hrs, that drops fairly
> suddenly. Not quite an incarnation of the original 357, but MUCH better
> suited for OMs than the non "H" version. Doesn't matter where you buy,
> as long as it's the correct version.
>
> Moose
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