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Re: [OM] Batteries for OM

Subject: Re: [OM] Batteries for OM
From: "John Hermanson" <omtech@xxxxxxxxx>
Date: Fri, 14 Dec 2001 08:39:35 -0500
AFAIK all silver oxide batteries are, and have been, close to 1.55 - 1.6
volts new, no load.
_________________________________
John Hermanson
Camtech, Olympus OM Service since 1977
631-424-2121  www.zuiko.com
Call Olympus for FREE manuals!
1-800-221-3000
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----- Original Message -----
From: "Jim Terazawa" <jimt@xxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Thursday, December 13, 2001 7:40 PM
Subject: [OM] Batteries for OM


> Kerry,
>
> Thanks for the input.  Giles had forwarded me an old post describing
> on the battery dating April 1997 by off-list.
>
> I have been thinking after all these years that the single-digit
> OM SLR operating voltage were spec'd at 3.0V and I was curious
> why Olympus has put two 1.55V rated batteries to the -3Ti.
>
> Again, thanks to Giles who kept up with the all the past posts !
>
> Regards,
> Jim Terazawa
>
>
> ------- Forwarded Message Follows -------
> From:          "Michael A. Covington" <mc@xxxxxxxxxxxxxxxxx>
> Subject:       OLYMPUS: Battery tip: MS76 vs 357 vs SR44
> To:            olympus@xxxxxxxxxxx
> Date:          Fri, 4 Apr 1997 14:05:40 -0500 (EST)
> Reply-to:      olympus@xxxxxxxxxxx
>
> A tip to all OM users who are using MS76 batteries:
>
> Olympus actually specifies SR44, which has several North American
> equivalents. MS76 is the most expensive but not necessarily the best.
>
> At the current drain level of an OM-2/4, which can be 10 mA for several
> seconds, the #357 watch/calculator battery performs better.
>
> The 357 and MS76 both meet the SR44 specification.  The only difference is
> that the 357 has somewhat lower internal resistance (identical voltage and
> capacity).  It is also a LOT cheaper since it is sold at office supply
> stores as a calculator battery!
>
> P.S. This is not a new wild idea of mine... I've been using 357s for 3
> years and have checked with both Olympus and Eveready; they approve.
>
> --
> Another exerpts from differnt post by Tim Hughes:
>
> ------- Forwarded Message Follows -------
> From:          HI100@xxxxxxx
> Date:          Wed, 7 Apr 1999 07:40:24 EDT
> Subject:       Re: [OM] OM1 battery fix
> To:            olympus@xxxxxxxxxxxxxxx
>
> BATTERY VOLTAGES:
> The '625 type mercury cells used in the OM1 (N ) have a very constant
1.35V
> voltage and a bit higher capacity (mAh) than the silver oxide cells used
in
> later OM's. The '76 or 357 silver oxide cells are often referred to as
1.5V
> cells (on this list) but actually have a specified voltage of 1.55V and
> typically have a slightly higher open circuit voltage especially when new
> (some types are closer to 1.6V)...
>
>
> Kerry Frohling wrote:
>
> > Jim,
> >
> > Since no one else has piped up (pun intended) on this topic, I?ll give
it a
> > go.  I'm not sure I understand your question.  The EPX76 is an
equivalent of
> > the MS76.  These have slightly higher internal impedance that the 357
> > variety, meaning that they will provide a slightly lower peak discharge
> > current.  Other than in OM-2(n) models, I've never heard of anyone
really
> > noting a difference in performance in OM cameras.
> >
> > Kerry Frohling
> > Fullerton, California
>
>
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> < Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
>
>



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