Testing CR123 with Power Resistors

kosPap

Flashlight Enthusiast
Joined
Mar 1, 2007
Messages
2,909
Location
Naoussa Greece
well, here is my try on it...

But soem help is required in determining the resistor value and voltage under load that will indicate a
good enough" battery

I run some tests with batteries in various state of charge, and used 2.2, 5.9 nad 8.8 power resistors (the white ceramic type)

Results....

CR123-Tests_zpse35b30e0.jpg~original


Samples 2&3 came form the some batch and were standing for some years in a 3-cell light.
By them i got an indication that 2.5V and above on a 5.9Ohm resistor will show an adequate battery.

Also the full battery reading show that the battery can keep its voltage over 2.5V on a 2.2Ohm resistor.


Any other suggestions on voltage threshold?
 
Last edited:

kosPap

Flashlight Enthusiast
Joined
Mar 1, 2007
Messages
2,909
Location
Naoussa Greece
I see...
So basically one aims to test on the fast drop section of the chart. (close to the y axis)

So I will have to repat my test measuring Amp draw to find the proper resistor.

thanks HKJ, you are always helpful
 
Top