Do AW's protected LI-ions have nipples?

[Scottiver]

I've been researching for an hour and can't seem to find out if AW's PROTECTED cells come with nipples on the positive end? I know on the unprotected ones you have to use the little magnets but was hoping that the newer ones come standard with nipples in place. Anyone know? Thanks.

 

[Gimpy00Wang]

Depends on the size. AFAIK, the only problematic cells are the 18650's which don't really have nipples. However, depending on the light/application it won't be a problem.

- Chris

"I have nipples Greg...can you milk me?"

 

[VidPro]

i saw some AW type C cells this week they had nipples and were longer than a c cell by a conciderable ammount.

 

[TigerhawkT3]

10440: slight nipple
14500: tab
14670: tab
17500: nipple
17670: nipple
18500: flat
18650: flat

I bought these cells within the last couple months. Hope this helps.

 

[Flash007]

I know AW is working on 18650/18500 protected cells with nipples, but about the availability, I have no idea.

 

[Scottiver]

Thanks for the replies.
Nice Robert DeNiro quote there Gimpy.
I was mainly looking at 17670 and maybe 14670 which Tigerhawk says one has a nipple and one has a "tab", what's a tab?
I'm pretty sure the r123's have nipples, I know the unprotected ones do.

 

[DeLighted]

The R123s have nipples. I bought them 3 weeks ago.

 

[DMC]

Have you looked at these magnetic snap-on battery spacers for 18650 or 14500 protected Li-ion batteries at
http://www.kaidomain.com/WEBUI/ProductDetail.aspx?TranID=1414?

 

[TigerhawkT3]

Thanks for the replies.
Nice Robert DeNiro quote there Gimpy.
I was mainly looking at 17670 and maybe 14670 which Tigerhawk says one has a nipple and one has a "tab", what's a tab?
I'm pretty sure the r123's have nipples, I know the unprotected ones do.

This is a tab (on a 14500):

 

[Scottiver]

Huh, I wonder what the tab does, except get in the way if you were to need to stick a magnet on there.

 

[Scottiver]

Have you looked at these magnetic snap-on battery spacers for 18650 or 14500 protected Li-ion batteries at
http://www.kaidomain.com/WEBUI/ProductDetail.aspx?TranID=1414?

They don't look like they would "snap on" to anything, they just look like regular magnet spacers to me, which i'm trying to avoid. They would be cool though if they somehow locked on to the end of the battery. I've read quite a few posts about how if a magnet got dislodged while inside a light that it could cause a bad short which could cause the battery to explode.
Kind of why i'm looking for batteries with built in nipples.
Here's a link to a thread that discusses this.

http://candlepowerforums.com/vb/showthread.php?t=112570

 

[LuxLuthor]

Huh, I wonder what the tab does, except get in the way if you were to need to stick a magnet on there.

That tab shown in pix above is a part of the protection PCB that runs along the side down to the bottom. This was my "reasonable" alternative where I attached the magnet with Arctic Silver Epoxy which is not blocking the vents, and which is slightly conductive...but I did not put it underneath the magnet.

This has been holding for 6 months, and I take it out of my SF-L2 and charge in Pila charger.

 

[ampdude]

^ Is that a 14670 Lux?

 

[VidPro]

Huh, I wonder what the tab does, except get in the way if you were to need to stick a magnet on there.

IF that is a protected cell , with the protection on the bottom, then the tab is the connection TO the protection curcuit below. and that is what it looks like.

 

[LuxLuthor]

^ Is that a 14670 Lux?

Yes. That is the protected version before the current one offered by AW.

 

[Dobbler]

Can one put a drop of solder on the end of a 14500, or is that not advisable?

 

[Dobbler]

Doesn't stick

 

[LuxLuthor]

Can one put a drop of solder on the end of a 14500, or is that not advisable?

Doesn't stick

It is NEVER safe to try and solder a Lithium battery !!!

If you have a protected cell, the heat can damage the PCB. You first should take the time to learn about why Li-Ion cells are more dangerous (i.e. explosion & fire risk) than NiCd or NiMH cells before using them.

Excessive heat (especially from soldering) can melt insulation layers, causing damage to the gas vent safety mechanism. It can even cause a Li-Ion cell to spontaneously overheat, release toxic smoke, burst into a 1500° F fire and/or explode with shrapnel damage.

As far as solder not sticking (which means you tried doing it--BIG DOH), that is a function of you not preparing the nickel plated surface properly and/or not using flux.

I never cease to be amazed at how many new users are not yet aware of the dangers with Li-Ion cells. There are many recent threads discussing it. It is also a good example why people should not get upset at those of us who try and warn people about Li-Ion cells. It is clear day after day from threads like this that many people have not yet heard about how to safely care for Lithium cells.

 

[Dobbler]

It is NEVER safe to try and solder a Lithium battery !!!

If you have a protected cell, the heat can damage the PCB. You first should take the time to learn about why Li-Ion cells are more dangerous (i.e. explosion & fire risk) than NiCd or NiMH cells before using them.

Excessive heat (especially from soldering) can melt insulation layers, causing damage to the gas vent safety mechanism. It can even cause a Li-Ion cell to spontaneously overheat, release toxic smoke, burst into a 1500° F fire and/or explode with shrapnel damage.

As far as solder not sticking (which means you tried doing it--BIG DOH), that is a function of you not preparing the nickel plated surface properly and/or not using flux.

I never cease to be amazed at how many new users are not yet aware of the dangers with Li-Ion cells. There are many recent threads discussing it. It is also a good example why people should not get upset at those of us who try and warn people about Li-Ion cells. It is clear day after day from threads like this that many people have not yet heard about how to safely care for Lithium cells.

I never applied heat to the battery itself, just dropped a little tiny blob on top. After two attempts, I gave up. I can't imagine anything I tried was unsafe, nor would I have tried anything more than what I did. And yes, I have read up on all the dangers of Li-Ion cells. Nowhere have I read "don't put solder on the ends"

 

[Foxel1]

I never applied heat to the battery itself, just dropped a little tiny blob on top. After two attempts, I gave up. I can't imagine anything I tried was unsafe, nor would I have tried anything more than what I did. And yes, I have read up on all the dangers of Li-Ion cells. Nowhere have I read "don't put solder on the ends"

Did you really think it would work like that, a 400°C solder blob falling on a 25°C battery?