Small indoor beam shootout + possibly crushed PCBs on my 3100 Panasonic NCR18650As.

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Slewflash
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Small indoor beam shootout + possibly crushed PCBs on my 3100 Panasonic NCR18650As.

Well, I love taking beamshots, and I love looking at them too! Don’t know about you guys, but beamshots are a staple in my diet :bigsmile:

NOTE: I may have crushed the PCB on my 3100 Panasonics (pics at the bottom). I put them in my STL-V2 (wanting to use fully charged, same batteries in all the lights) and screwed it all the way shut. It would not turn on. I slightly unscrewed it, and then it worked. Wondering why that was I opened it up and noticed that my batteries were now significantly shorter, and the buttontops were now deformed. I may have crushed the PCB but I’m not sure how to test them.

Anyway, here are the pics;

Skyray STL-V2:
20120908_192402

Crelant 7G5-V2:
20120908_192445

Crelant 7G5-V2 w/ Collimator Head WITHOUT LENS:
20120908_192620

Skyray KING:
20120908_192423

Possibly busted PCB? The one on the right is a normal battery, the 2 on the left and right were the ones used in the STL-V2.
!20120908_185016!
!20120908_185056!

EDIT: I just got my replacement DMM and can finally do readings again. When my light meter comes in I’ll add in the lux readings.
These are in amps btw:
!20120911_172159!
!20120911_175046!

Slewflash 

Edited by: Slewflash on 09/11/2012 - 04:07
cainn
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The PCBs (protection circuits) are on the bottom (negative terminal) of the battery. Unless they are damaged, you’re possibly still OK.

Have a look at this, so you can understand it better: http://www.lygte-info.dk/info/battery%20protection%20UK.html

Perhaps all you’ve done is slightly crush the “optional top”, which isn’t necessarily tragic.

Slewflash
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Yeah, I know that they’re on the bottom. But there’s a noticeable dent in the bottom of the batteries.

Slewflash 

cainn
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If you have a hobby charger I guess you could run a discharge test to see if the protection still triggers. Otherwise, you’re just going to have to make a judgment call. I’d err on the side of caution when it comes to multi-cell applications.

Slewflash
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Looks like they’re going to be my permanent battery replacements for my Ultrafire UF H6

Slewflash 

cainn
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The H6 has low voltage cut-off anyway, doesn’t it?

You could also choose to remove all the extra nonsense and run them unprotected. If the H6 is OK with flat tops, anyway.

Bit of a bummer, but not a total loss Smile

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Yeah it’s not too bad, but even if they’re stuffed, I’ll keep them on so I don’t convert them to flat-tops.
Well now that leaves 20 18650 cells to use in my multi-cell lights. Should be enough for now.

Slewflash 

Rod911
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Nice beam shots.

As I mentioned previously, the metal on the negative end on these cells are so soft, that I too, have dented ALL of my cells and the only action they’ve seen is being charged in an Xtar WP2. Even my two year old *Fire cells have stronger material on their negative end than these cells.

scaru
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Quoted from another thread. 

pounder wrote:
AlexGT wrote:
Took some pictures outside, the phone's camera is not very good so you might not notice much difference, someone has to tell me how to do the mouse over thing to compare pics!!! Please!
doing a mouseover... -open up the “reply” tab.. -click advanced editor -put your mouse off image in the url -click advanced and check the box use alternative image -put that same url in the “mouse off” box -put the mouse on link in the “mouse over” box.. save and RELOAD before you give up..I always have to reload before it works..
Slewflash
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Thank you very much, Scaru!

Mouse out: STL-V2

Mouse over: 7G5-V2

asc

 

EDIT: For some reason I can't do it, I'm using the same link that I use to insert the pictures (HTML code), I put STL-V2 in the image URL and mouse out, and 7G5-V2 in the mouse over... doesn't want to work for me Sad

Slewflash 

scaru
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Slewflash wrote:

Thank you very much, Scaru!

Mouse out: STL-V2

Mouse over: 7G5-V2

asc

 

EDIT: For some reason I can't do it, I'm using the same link that I use to insert the pictures (HTML code), I put STL-V2 in the image URL and mouse out, and 7G5-V2 in the mouse over... doesn't want to work for me Sad

Here. 

Slewflash
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scaru wrote:

Slewflash wrote:

Thank you very much, Scaru!

Mouse out: STL-V2

Mouse over: 7G5-V2

asc

 

EDIT: For some reason I can’t do it, I’m using the same link that I use to insert the pictures (HTML code), I put STL-V2 in the image URL and mouse out, and 7G5-V2 in the mouse over… doesn’t want to work for me Sad

Here. 

Thanks, I’ll try figure it out tomorrow.
But I wanted to do a mouse over to show that the 7G5V2 has a tighter hotspot, due to the deeper reflector (looks like depth does make a difference, contrary to what I originally thought), since they both have the same width heads.

Slewflash 

scaru
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Hmm... Now I want one of those reflectors. 

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EDIT: added tailcap readings.
EDIT2: I seem to be reading 2amps at the tailcap on the 7G5V2 (*2 batteries, so 4amps to the driver)… I’m not sure if this driver has massive inefficiency or this light is just driven quite high.

Slewflash