Help needed with Leefbody & M60

txgp17

Enlightened
Joined
Oct 23, 2007
Messages
242
Hi guys,
I just received a 2x18500 body from lighthound and experienced a problem. I can't get it to complete a circuit and light up a Malkoff M60. I'm using Genuine Surefire head & tailcap, AW 18500 cells, and Malkoff Devices LED drop ins.

This is my second 2x18500 Leefbody, so I took my other one, that operates normally, and switched all components, and it's still won't light up. I even tried a set of fresh primary 123A's.

*IF* I screw the tailcap all the down, and push the M60 in manually, and wiggle it around, it will eventually complete the circuit and light up, but I can't get it to do this when the head is on.

I check the spacing, and the head is not bottoming out on the body, meaning the Malkoff is getting wedged tightly before the head runs out of threads.

My first Leefbody was Black, this one is Natural.

What more can I do?

Thanx in advance
 

etc

Flashlight Enthusiast
Joined
Dec 19, 2004
Messages
5,777
Location
Northern Virginia
Try wrapping the M60 module in alum foil. Especially near the spring.

I have an intermittent contact in a 2x18650 Leef body. No problems with 2x18500 body. No problems with FiveMega bodies.
 

brighterisbetter

Flashlight Enthusiast
Joined
Jun 23, 2008
Messages
2,395
Location
Tornado Alley, USA
I experienced the same problem a while back with a black 1x18650 Leef and an M30. At that time I was impatient and sold it prior to seeking a fix.
 

divine

Flashlight Enthusiast
Joined
Sep 30, 2007
Messages
1,840
Location
Virginia
I wrapped a paperclip around my BOG to make it work with a FM 2x18500 body. If you look on the Leef body, there will be a part that has no anodizing, THAT part is what needs to have contact with your Malkoff drop-in.
 

tx101

Flashlight Enthusiast
Joined
May 17, 2008
Messages
2,357
Location
London UK
Same problem here
I recently brought a 1 x 18650 Leef body and both the
head and tail would not make electrical contact.
I just used a couple of homemade rings :thumbsup:
 

bagman

Enlightened
Joined
Sep 3, 2002
Messages
476
Location
GB
I have used Gene's copper washers in a 18650 and a 2 x 18500 Leaf bodies to give better contact with M60 and M30 drop ins. Both types of drop ins worked without but would shut off if the bezel was unscrewed a tiny amount.

The 18650 FiveMega body I just received would not work at all with the copper washer and I have wrapped the M30 in aluminum foil which works very well as stated in above posts.
 

mitch79

Newly Enlightened
Joined
Jul 11, 2008
Messages
134
Location
Adelaide, South Australia
I need to do this with a couple of different D26 drop-ins.

Rather than using wire I form a loop from a length of 0.7mm or 1mm dia solder.
As the solder is soft it deforms as you screw the bezel down, allowing it to be screwed all the way down clamping the drop-in tightly. No rattles and a good conduction path.
 

bullfrog

Flashlight Enthusiast
Joined
Jun 25, 2008
Messages
1,360
Location
AZ
I have used the Malkoff washers and they are a bit of an awkward fit in the leef bodies - they don't really sit well as they are a tad small and they also leave a decent gap. I don't use any of the ones I bought for my leefs.

I just wrapped the bottom of my drop-ins in wire from a sketchpad and drop it in - perfect fit, NO GAP, and works in all my leef bodies.

Hope this helps!

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kramer5150

Flashaholic
Joined
Sep 6, 2005
Messages
6,328
Location
Palo Alto, CA
Curious...
Could the OP use the proper sized O-ring (GITD perhaps) infront of the module, beneath the pyrex? That would allow the M30 to seat against the host body and (maybe) help conduct heat?

:eek:
 
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