Thanks for the expa\lanation Paul. I use the same batteries in the OM-2s andthe
OM-4T, and still get more warning with the 4T, maybe the battery check is set up
differently, I don't know. I suppose the residual drain of the OM2s is high
enough
that it burns up that remaining 1% quicker than the 4T or the 2n does.
Jim Couch
"Paul.Riethmuller" wrote:
> Jim, this is to be expected, the 357s are designed that way. They hold
> the specified voltage extremely well until 99 0ischarged. Still
> an excellent battery for OM2 onwards - will give the most consistent metering
> over the life of the battery, better than the EPX76 that is specified.
> After the 99 0ischarge point is reached, they drop to zero volts in
> just a few hours of use.
>
> EPX76/SR44 batteries hold the specified voltage extremely well until about 95%
> discharged, then slope down at a predictable rate. Olympus specify this
> battery for a reason - it gives you the ample early warning you would like,
> and Olympus designed for. For most consistent metering, you should replace
> them as soon as the battery check LED flashes.
>
> LR44s on the other hand start to drop a lot voltage when they are only
> 5 0ischarged. By the time they are about 20 0ischarged, the voltage is too
> for use in your camera. They will have a lot of life left in them for use
> somewhere else besides your camera, say a gadget that only need 1.0V per cell.
>
> All 3 batteries have very similar storage capacity, but most of the LR44
> capacity is unusable in your camera as it supplied at too low a voltage.
>
> HTH
>
> Paul
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