In the Duracell pamphlet I found further information about size
compatible silver oxid button cells, which might be of interest for the
FAQ and recent discusion:
Duracell
Product IEC ANSI
Number Drain mA Capacity mAh Load Ohms Type Type
D301/386 0.10 120 15,000 SR43 1133S0
D303/357 1.50 165 1,000 SR44 1131S0
D381/391 0.10 40 15,000 SR55 1160S0
D389/390 0.11 70 13,000 SR54 1138S0
MS76 1.00 180 1,500 SR44 1184S0
For all types:
Nominal Voltage 1.55V, Rated Voltage Cutoff 1.2
Source: Duracel PDF files Date 2/97
To me it seems, that there are only two relevant cell typs: The MS76 and
D303/357.
The D303/357 has a smaller capacity and higher internal drain caused by
smaller internal resistance. The smaller internal resistance might help
to supply the OM more easyly with current, so in case a OM-2SP needs
much amps the voltage might not drop to much. This migth help to operate
sensible OM bodys, like the OM-2SP should be, more reliable.
But you have to change the batteries more often, because of the higher
drain and lower capacity of the cells.
The MS76 will live longer and let your OM body eat less batteries,
because of lower drain and higher capacity.
Richard
In the Olympus FAQ maintained by R. Lee Hawkins, is folowing writen
about OM body batteries:
B3) My OM-{PC, 2S, 4(T)} eats batteries. What can I do about it?
Several things:
1) Use SR44 (#357) silver oxide batteries. SR44P (MS76),
recommended
by many camera dealers and some battery manufacturers, has a
higher
internal resistance and is not quite as good. Alkalines (LR44,
MS76A)
are to be used only if nothing better is available.
snip..
(Thanks to Brian Waldron for data).
Thanks to Michael A. Covington <mcovingt@xxxxxxxxxx> and
Dan Lau <dlau@xxxxxxxxxxxxxxxx>
Further the battery table:
B1) What types and number of batteries do the various bodies take? Is
one type better than another?
Here is a handy cross-reference of battery types:
ANSI Spec. 1131SO 1107SOP 1166A 1124MP
IEC Spec. SR44 SR44 LR44 MR9
Chemistry AgO AgO Alk. Mercury
Bulova 228
Duracell D357 MS76 PX76A PX625
Eveready 357 EPX76 A76 EPX625
Kodak KS76 KA76 KX625
Maxell SR44W SR44P LR44P
Panasonic SP357 G13 LR44 H-D
Rayovac 357 RS76 LR44 RPX625
Renata 357
Seiko SR44W
Timex J
Toshiba SR44W SR44 LR44 MR9
Varta V357 V76PX V13GA V625PX
Thanks to "Larry J. Clark" <ljclark@xxxxxxxxxxxxx> and
Kerry Frohling <kdfrohling@xxxxxxxxxxxx>
##################################################################
# This message was delivered via the Olympus Mailing List
# To receive the Olympus Digest send mail to: listserv@xxxxxxxxxxxxxxx
# with subscribe olympus-digest in the message body.
#
# To unsubscribe from the current list send a message to
# listserv@xxxxxxxxxxxxxxx with unsubscribe olympus in the message body.
#
# For questions email: owner-olympus@xxxxxxxxxxxxxxx
##################################################################
|