I went to Energizer's website to see what batteries they recommend for
cameras. First I was (pleasantly) surprised
to find that have all the OM cameras in their list! The following were
recommended for the OM4
Energizer Model Number 2L76BP
Energizer Lithium Photo Battery for Olympus OM4 Camera
Energizer Model Number A76BP
Energizer A76 Manganese Dioxide Battery for Olympus OM4 Camera
Energizer Model Number EPX76BP
Energizer Silver Oxide Photo Battery for Olympus OM4 Camera
http://www.energizerbatteryfinder.com/search.asp?strPage=3&device=CAMERA&manufacturer=OLYM
-Tim
----- Original Message -----
From: "Tim Chakravorty" <suchismit@xxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Saturday, November 23, 2002 1:16 AM
Subject: Re: [OM] are 1.55 volt batteries OK for the OM-4 ?
> The batteries that I bought are the 357s. On the package it says they
> replace the
> LR44/MS76 etc and that it is Silver Oxide, however it doesn't say that on the
> battery(that its silver oxide)
> I know alkaline batteries wear out faster so I currently have the silver
> oxide MS76 on my OM 4, and they
> are still running strong, partly because I am fanatical about setting the
> shutter dial to B after every exposure.(!)
> However my concern is the voltage difference. The package on the 357 says its
> a 1.55v battery while the
> OM4 runs on a 3v source. So will a 3.1v power supply as opposed to a 3v,
> make a difference in shutter speeds
> and/or metering ?
>
> Just to experiment, I spot metered an area under fixed illumination. The new
> batteries (357) were showing
> 1/3 less exposure (higher shutter speed) than my current MS76 silver oxides.
> But then that could be due to
> the fact that my older batteries have been in use for over 2 months ( ~10
> rolls), or , because of the higher
> voltage of the new batteries. I am not sure.
>
>
>
>
> ----- Original Message -----
> From: "John A. Lind" <jlind@xxxxxxxxxxxx>
> To: <olympus@xxxxxxxxxxxxxxx>
> Sent: Friday, November 22, 2002 10:53 PM
> Subject: Re: [OM] are 1.55 volt batteries OK for the OM-4 ?
>
>
> > No!
> >
> > The LR-44 is the *alkaline* version of the ~1.5 Volt SR-44 silver cell, and
> > is the same as a MS76A. Clint is absolutely correct that it will not
> > last long (even though it's alkaline, not lithium). However, in a "double
> > digit" OM (e.g. OM-10) or in an OM-2[n,S], OM-3[ti] or OM-4[T] it will not
> > throw the metering off. Both alkalines and lithiums gradually drop in
> > voltage starting at about half life. The OM-4 and OM-4T are both finicky
> > about sufficient battery voltage for operating the shutter. Alkalines and
> > lithiums fall below the minimum well before actual end of cell life and the
> > shutter locks up (to recover, replace the cells or switch shutter speed
> > ring into one of the two mechanical speeds [red "60" or "B"]).
> >
> > Best cells for the OM-4[T] are 303 or 357 silver oxide watch cells, which
> > translate to SR44W and SR44SW. They are slightly better than the silver
> > oxide SR44P or MS76 photo cells (the MS76A is alkaline). The watch cells
> > are designed to withstand the slight drain current of an OM-4[T] in
> > "standby" mode better than the photo cells can.
> >
> > The lithium button cells C.H. Ling referred to are the Energizer 2L76BP,
> > Duracell 7K67 and Rayovac 867. These are twice the height of a single
> > 303/357/MS76/SR44/etc. (all of which have the same form factor).
> >
> > FYI:
> > The two bodies with meter accuracy sensitive to battery voltage are the
> > OM-1 and OM-1n. They were designed to use the 1.35 Volt PX-625 mercury
> > cell. Do not use a 1.5 volt PX-625A alkaline cell in them.
> >
> > -- John
> >
> > At 00:55 11/23/02, C.H.Ling wrote:
> > >I think lithium button cell is 3V.
> > >
> > >C.H.Ling
> > >
> > >----- Original Message -----
> > >From: <clintonr@xxxxxxxxxxxxxxxx>
> > >
> > >
> > > > I believe these are actually lithium batteries, though I may be wrong --
> > > > check the package. It they aren't "silver oxide" batteries, they'll go
> > > > dead rather quickly. Use nothing but silver oxides.
> > > >
> > > >
> > > > Tim Chakravorty wrote:
> > > > >
> > > > > I picked up a couple of Energizer Silver Oxide (LR-44) 1.55 v
> > > > > batteries
> > >from
> > > > > a local walmart.
> > > > > The question is will a +0.1v throw the metering off ? Will I need to
> > >compensate
> > > > > for exposure ? Is it recommended at all ?
> > > > > As far as I know LR-44s are 1.5 v batteries, I dont know why these
> > > > > ones
> > > > > are 1.55v
> > > > > Thanks,
> > > > > Tim
> > > > >
> >
> >
> > < This message was delivered via the Olympus Mailing List >
> > < For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
> > < Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
> >
>
>
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>
>
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