What could be wrong with my SF + Leef?

[Lightedge]

I have a 3 cell Leef+SF turbo head+SW02 set-up powering a WA1111 on 2x AW 18500 cells. I don't like stressing my cells this much so I would like to run on 2x AW 18650's.

I have a hard anodized SF A19 cell extender that I bored out with a dremel to accomodate the 18650 cell and I put it all together but the light doesn't work. The cells are fine and I tried on a second pair of LG unprotected cells as well with no luck so I don't think it's a problem with the AW protection circuit. I must have some type of contact problem but I don't even know where to start.

Any ideas?

Thanks for your help.

 

[mikekoz]

I do not have that light, but the 18650 cells I have do not have a tip on the + end that sticks out that far. I have an Ultrafire C2 and I had to drop a little bit of solder on the center of the underside of the head so it would make contact with the + terminal of the battery. This may not be your issue, but it was the first thing that came to mind!:thinking:. Hope this helps!!

Mike

 

[gswitter]

If you haven't used this body combo successfully before, I'd first check the continuity between your Leef body and the A19, and then between the A19 and the tailcap.

But if you're using flat top cells, mikekos is most likely correct.

I run a turbohead on a 2x18650 Leef body with flat-top 18650s, and I couldn't get the upper battery to contact the turbohead module spring without a spacer. I use a Leef magnet, and I also need a second between the two cells.

 

[ampdude]

I have the same problem with my 2 X 18500 Leef body. Works good with a Z48 and two 18500's, but it does not with a standard twisty from a C3 Centurion or a Leef clicky. It also does not work with a MC123 HAIII extender and any switch at all. (MC123 is similiar to the A19). Of course I wanted the Leef clicky to work (or the C3 one at the very least) so that the light will fit in my Surefire 6 holster, which it does not with the Z48, surprise, surprise.

I'm pretty convinced it is because of the anodized threads. I'm not sure of this though. But I want to have somebody remove the anodizing from the threads and try this out. I've been waiting a long time to have AW's button cells come out to run a P91 on a three cell rechargeable light. To have this problem now really makes me want to rip my hair out :hairpull: So there it sits on the shelf..

 

[DM51]

I have the same problem with my 2 X 18500 Leef body. Works good with a Z48 and two 18500's, but it does not with a standard twisty from a C3 Centurion or a Leef clicky. It also does not work with a MC123 HAIII extender and any switch at all. (MC123 is similiar to the A19). Of course I wanted the Leef clicky to work (or the C3 one at the very least) so that the light will fit in my Surefire 6 holster, which it does not with the Z48, surprise, surprise.

I'm pretty convinced it is because of the anodized threads. I'm not sure of this though. But I want to have somebody remove the anodizing from the threads and try this out. I've been waiting a long time to have AW's button cells come out to run a P91 on a three cell rechargeable light. To have this problem now really makes me want to rip my hair out :hairpull: So there it sits on the shelf..

AW's button-top 18650s & 18500s are out and available now. If you have old flat-tops, Leef made safety magnets which can be used as connectors.

On topic: the problem is likely to be the connection between the LeefBody and the extn tube. There is a similar problem with WE extn tubes, and one solution is to use a thin copper ring sandwiched between the two. There's a thread on this somewhere but I can't find it.

 

[ampdude]

AW's button-top 18650s & 18500s are out and available now. If you have old flat-tops, Leef made safety magnets which can be used as connectors.

On topic: the problem is likely to be the connection between the LeefBody and the extn tube. There is a similar problem with WE extn tubes, and one solution is to use a thin copper ring sandwiched between the two. There's a thread on this somewhere but I can't find it.

Yep, that's what I'm using, AW's new button tops. Great cells btw.

 

[Lightedge]

I suspect you are right about the anodized threads being the problem. I wasn't able to find the copper ring thread. Any thoughts on who might have started the thread or participated in the thread? That might help me find it.

Thanks for everyone's input.

 

[ampdude]

I suspect you are right about the anodized threads being the problem. I wasn't able to find the copper ring thread. Any thoughts on who might have started the thread or participated in the thread? That might help me find it.

Thanks for everyone's input.

You know, I'm not so sure now...though I would still like to see the next batch without anodized tailthreads like Sure-Fires are made.

It may be a contributor to the problem though.

I now have a RAW (unfinished) body and it has the same problem. Works with a Z48, but does not work with a standard twisty from a C3. The standard twisty works when twisted all the way on and the momentary button is pushed, but does not work for constant on.

Unfortunately, I do not have a Leef clicky anymore to test on the body.

I now suspect that possibly the internal diameter of the body also causes a problem, though I'm not sure why I would have had this problem with a Leef clicky since it was made for the body, unless it was just a bad unit, which could have been the case. It also slipped my mind, but I realized that the inside threads of the switches are anodized. Though I also noticed on my anodized Leef body that some of the anodize was over the top edge.

I wish Leef would weigh in on this some so we can clear this up!

 

[DM51]

That was a good idea to look for the thread by likely participants - here it is. See post #25 for details of a good method of making a copper ring.

I hope this helps.

 

[jumpstat]

If Leef body head and TC is working fine then can you just wirebrush the anodising on the extension tube? Dremel has a wirebrush attachment that would work....

 

[brunt_sp]

I had the same problem with a Leef tube and A19. It was discussed on posts #23 to #25 on this thread.
http://www.candlepowerforums.com/vb/showthread.php?p=2181385#post2181385