Resistor Value for CR123 testing

kosPap

Flashlight Enthusiast
Joined
Mar 1, 2007
Messages
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Location
Naoussa Greece
Greetings all!

I wonder what is a good resostor value for testing CR123 on load by a DMM. Especially older ones.

I have tried this before, and it works, but too big a value shows big voltage drop and consumes some capacity.
Too small a resistor value, may hinder the battery degradation detection.

What are your suggestions?

An hypothesis.... Assuming a flashlight that draws 2 amps (two Cr123s). That makes a 6 watt consumption.
Assuming a working voltage of 3Volt, then
V=I2R then 6=2*2*R then R = 1,5 ohm.
what about this idea?
 

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