Don't know why 3 week old messages that I wrote to the list are now
being rejected by mcosby's full mailbox and returned to me rather than
the list server. They're starting to come in droves.
Chuck Norcutt
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> Subject:
> [OM] Re: OM-4 battery problem
> From:
> Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
> Date:
> Thu, 10 May 2007 07:33:41 -0400
> To:
> olympus@xxxxxxxxxx
>
> To:
> olympus@xxxxxxxxxx
>
>
> Even if the OM-2n *seems* to like LR44 batteries you should change it
> back to silver oxide. The reason has to do with voltage levels of the
> different battery types as they discharge. The voltage level of
> alkaline batteries drops very fast as they discharge. The voltage level
> of silver oxide batteries stays almost constant until they are nearly
> exhausted. The OM auto exposure bodies are very sensitive to voltage
> level. While the alkaline battery may still be able to deliver a large
> current flow and it may still work well in a different device it will
> soon fail in an OM auto exposure body due to insufficient voltage.
>
> When I first got an OM-2s I thought there was a short circuit in the
> camera and I didn't use it for several years until after joining this
> list. Even if I didn't use the camera the batteries wouldn't power the
> camera anymore after just 4-6 weeks sitting in the closet. That's
> partially because the bodies after the 2n do not have a power switch.
> They're never really off and are always drawing a small current which
> the 2n does not do. Although the current draw is very small it manages
> to lower the voltage of an alkaline battery very quickly. Once I
> changed the 2s over to silver oxide batteries I began to get battery
> life of 6-9 months even with usage.
>
> Get rid of all batteries for OM's that are not silver oxide. Even a
> converted OM-1 should use silver oxide batteries. The constant voltage
> characteristic of the silver oxide battery was also a characteristic of
> mercury oxide batteries. They are used since they avoid the need for a
> voltage regulator.
>
> Chuck Norcutt
>
>
> Lukasz Grabun wrote:
>> On Thu, 03 May 2007 23:41:39 +0200, Tom Scales <tom@xxxxxxxxxxxxxxxx>
>> wrote:
>>
>>> LR44 = Bad :)
>>> You want 357 or SR44.
>>
>>
>> OM-2n seems to like LR44 and operates smoothly :-)
>>
>> Anyway, I'll try to get SR44s but somehow would put some more light into
>> the case, I'd be most grateful.
>>
>
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