3xCR123 light creates no charge differential

Bonky

Banned
Joined
Oct 22, 2007
Messages
492
Location
Southern Calif.
My 2xCR123 light (Romisen F4) frequently pulls down 123s to differing voltages. In fact it gets to the point where after I've used the light for a total of about 30 mins on fresh batts, I pull them out and switch them around in an attempt to complete the drain in a way that evens them up.

I've read a lot about this phenomenon here, some people saying that 123s aren't really even suited for serial implementation because for some reason they drain differently and can cause an explosion hazard.

But my somewhat-new 3x123 (Trustfire B3) discharges the 3 cells to within one one-hundredth of a volt each and every time.

Weird.
 

Mr Happy

Flashlight Enthusiast
Joined
Nov 21, 2007
Messages
5,390
Location
Southern California
I have often felt that this might be related to the temperature of the cells. Is it possible that in the F4 one of the cells gets warmer than the other during discharge, for example due to proximity to the emitter?
 
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