Surefire flashlights

[JcMack]

I found 6 Surefire flashlights, all non working, in a drawer where I put them probably 10-12 years ago, maybe longer. I got three of them working by swapping tail caps and buying some Cree upgrade lamps for pretty cheap. Also got some free parts from Surefire. I've got a fourth Surefire that uses 4-123's with a 12V lamp. I want to switch to 3-123's and a 9V lamp in this flashlight. Suppose I take brass or copper rod cut to the length of a 123 battery, coat it with heatshrink so its electrically isolated except for the ends and use it to take up the space of a fourth battery, giving me a working 9V flashlight. Should work, no?

 

[SAFireman]

Aluminum would work, and be lighter

 

[JcMack]

SAFireman, thanks for info and passing on a solution. I'm an impatient idiot so I inquired at Candle Power Forums and they informed me there are "dummy" cr123 pass through batteries available. I've got one ordered.