Original 2S and 4 drain (meter off) is around 30 micro amps. OM-4 meter
on is around 0.6 ma (600 micro amps). That's what I have written down
at least.
___________________________________
John Hermanson | CPS, Inc.
21 South Ln., Huntington NY 11743
631-424-2121 | www.zuiko.com
Olympus OM Service since 1977
Gallery: www.zuiko.com/album/index.html
Chuck Norcutt wrote:
> 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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