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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