Problem with TK21, won't stay on with CR123's

NorthBayLeo · Feb 4, 2013

Hello, been lurking for a while, finally had a good reason to start a thread....

So for over a year now I've only been using 18650's in my TK21. Then couple
weeks ago I tried a couple CR123's only to find out that it wouldn't stay on
with those batteries.
It clicks and the light does come on, but as soon as I let go of the power
button, it just shuts off. I have to hold it down for it to stay on.

Any tips on what I could do? Or am I stuck using 18650's only?

Thanks.

AnAppleSnail · Feb 5, 2013

Sounds like a cell length issue. You can check this by listening for battery rattle. If that's the case, sometimes CAREFULLY stretching the springs helps.

Jash · Feb 5, 2013

Might need to tighten up the switch retaining ring.

mainetje · Feb 5, 2013

I think Jash is right, had the same problem with the Fenix pd30 if you screw of the click-switch you see the spring and behind it you will see a ring with 2 small dents get a small nose pliers and screw it open till it feels like its stuck.
then you reassemble your flash-light, hopefully that works for you.

NorthBayLeo · Feb 5, 2013

That worked. You guys are awesome.
Even though it still worked it's just been bugging me.

Thanks!

Problem with TK21, won't stay on with CR123's

NorthBayLeo

Newly Enlightened

AnAppleSnail

Flashlight Enthusiast

Jash

Flashlight Enthusiast

mainetje

Newly Enlightened

NorthBayLeo

Newly Enlightened

Similar threads

Latest posts