Well I finally got tired of the fact that my *ist-D gets more battery
usage from a set of rechargeables than my Ds and did a little test.
It seems that the DS will take quite a few more photos when the battery
indicator reads empty, two or three hundred more in fact. The D is just
about ready to give out when the battery indicator reads empty. The D
will take batterys that the Ds thinks are empty, (and won't even get the
display on the DS to start), and show them as half full.
Now we all know that the battery check on these cameras is just a rough
estimation of how much power remains, but this looks like a huge
difference. Using my handy, dandy, Tandy®, digital multimeter I have
been able to determine that at a measured voltage around 1.24-1.27
volts the Ds starts showing the batteries as being empty, yet it will
continue to operate for quite some time. The D sees these as being half
full. I don't know if this is sample variation or some psychological
gambit, (for example, GM automobile gas gauges read empty when there's
still 3-4 gallons in the tank, just so people won't run out of gas), I
don't know about anyone else but I find this to be interesting.
Disclaimer: Hardly a scientific test, but I didn't have to build any
special equipment and I wasn't doing anything else important anyway.
--
When you're worried or in doubt,
Run in circles, (scream and shout).
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