carrot
Flashaholic
The new Cytac charger that 4sevens is stocking. Charges faster than the 139, and doesn't require spacers for RCR123. My particular sample is a little finicky about nipple-less cells, but 47s is working on a solution.
First and last li-ion light
- Thread starter jimbo231
- Start date
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jimbo231
Enlightened
Heres a pic. Its a little dark but you can see the liquid.
http://i344.photobucket.com/albums/p360/chillilover1/188-1.jpg
Over sized image changed to link
http://i344.photobucket.com/albums/p360/chillilover1/188-1.jpg
Over sized image changed to link
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Apollo Cree
Enlightened
That might be some thermal compound leaked from the LED mount. Some of that is clear oil/grease stuff.
Thousands of AA battery leaks!!!!
TooManyGizmos
Flashlight Enthusiast
Would touching it with a cotton swab dipped in water/baking soda , make it foam if it really was battery leak ?
I'd just clean it off ... and move on.
Have them send you another battery and monitor for new leakage.
Don't give up yet !
I'd just clean it off ... and move on.
Have them send you another battery and monitor for new leakage.
Don't give up yet !
Does it say UL listed on the back label?
Mockingbird
Newly Enlightened
- Joined
- Jun 24, 2006
- Messages
- 161
Battery leak with a lithium-ion battery is probably not acidic. I would use a cotton swab dipped in alcohol to clean it.
rookiedaddy
Enlightened
errr... jimbo231, all my EagleTac T100C2s have the same "sealant" at the positive contact.
Chrontius
Flashlight Enthusiast
Li-ion electrolyte is an organic (often nonpolar, sometimes polar, but not acidic) solvent, dissolved in which is a lithium salt.
Vesper
Enlightened
Nice thing about CPF - you'll get good help to figure out the issue. Let us know how it works when you give it a good cleaning. Might be nothing, or something but good to explore for an explanation.
Actually, Surefire sends out all their lights with their brand of battery pre-installed
Of course, that's not a rechargeable.Rod911
Enlightened
That looks like the same discharge from my T20C2. I was cleaning and re-lubing it in preparation for my holiday next week and I found minute amounts of reddish liquid around the positive contact area. I didn't think much of it, so I cleaned it with some isopropyl alcohol, re-applied some dexoit and we were roses again.
Note that, before cleaning the light, there were no issues with it at all.
TooManyGizmos
Flashlight Enthusiast
MojaveMoon07
Enlightened
This article about lithium sulfur batteries sounds promising:
http://www.technologyreview.com/energy/24758/
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jimbo231
Enlightened
I would clean it but am afraid in case it was from the battery. I read a post on hear saying the stuff in a li-ion battery is pretty nasty or toxic.
csshih
Flashlight Enthusiast
it doesn't look like it would be leakage, , but
Not a problem if you wear gloves I would think.
There really haven't been many documented cases of liion cells popping. It's usually venting primary 123s that show up on the forums.
Not a problem if you wear gloves I would think.
There really haven't been many documented cases of liion cells popping. It's usually venting primary 123s that show up on the forums.
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errr... jimbo231, all my EagleTac T100C2s have the same "sealant" at the positive contact.
In theory a LiCoO2 cell can leak but as many people in this thread pointed out it seems to be really unusual and unheard off. I'd also guess that what you are seeing is something originating from the light, not the battery.
BTW, Carrot, how on earth is your "excellent charger available at 4sevens" advertisement related to anything in this thread?
DM51
Flashaholic
The thread was discussing a perceived problem with a Li-Ion cell. Problems with Li-Ion cells arise from poor quality cells and/or incorrect charging. It was therefore perfectly reasonable for Carrot to recommend good quality cells and a good charger.
You are confusing a recommendation with an advertisement. They are not the same.
There were numerous reports of Ultrafire BRC18650 3000mAh cells leaking.
I's sorry for the off topic post but I'm afraid I am not confusing anything. When with a surprising frequency the recommendations are given to the products offered by one particular vendor, it starts to be a vendor advertising for me. When Carrot writes "I buy my AW cells from 4sevens.com" what does the vendor have to do with the quality of the cells he recommends? Are the AW's cells bought from B/S/T any different (except the lower price) than the ones from 4sevens? I know that everyone of us can have own preferences but this thread is IMHO not about this topic.
The cell in question wasn't charged (and it's quite possible it never leaked). There can be many problems related to the cells but the OP's problem was that he suspected it could have leaked in transport, not where to buy the best charger for it. I could as well start recommening here my preferred sources to buy electronic components because we all know that high quality DMMs are important to monitor Li-Ion cells.
There is by the way already a thread dedicated to this particular charger. It would be good to monitor it to determine if the charger really is (as mfm suspects) a re-branded TrustFire TR-001 (recommended by old4570 as a "Great product if you are looking to burn your house down").
