Dark Spots Showing Under battery Wrap VTC4 & VTC5's 18650

[dubliquid]

Apologies mods if this thread is in the wrong category. i did make 5 initial posts to try post in the correct forum section but I'm still unable to post there. As a new member i thought this may help anyone else who is having the same issues.

I've been vaping heavy for about 6 months. i use mainly mech mods and mainly drip.

I've noticed that many of my vtc4's and Vtc5's have been showing dark spots under the wrappings, i've not been too concerned due to reading online saying that it's due to the wrapping getting hot and nothing more. I'm not having any issues with batteries getting hot only issues just dark spots.. So i decided to take a look under the wrapper of one of my batteries that works fine but has alot of these dark spots, i wanted to investigate more. I've searched everywhere on the internet to try find someone that has had the same issue or knows what exactly is happening to create these dark spots, but can't find any info at all

Would someone who knows whats going on shed some light on the issue please.


this is what i found under the wrapper



After a good clean i managed to remove about 98% of the marks that were on the surface of the bat after it looks like:



Can anyone shed some light on whats actually causing this to happen, those dark spots on the surface of bat in the first picture look a bit worrying. seems to show on many of my batteries.

Also just to add, ive been building coils for months with no shorting issues or cheap builds.. i do my best to ensure my builds are safe and all connectivity is done correctly. so i have no idea what could be causing these spots.

 

[classwife]

That forum requires 15 posts.

once you reach that, report your post with the triangle and I will move this thread to Batteries and Chargers for you




Those batteries look skeery !!!!!!!

 

[dubliquid]

i will do that classwife, ty for the heads up

and yes they do look scarey.. just wish i knew why

will direct post once im at 15 ty

 

[TheSystemHasFailed]

Best on the market though, class...they are Sony's...

Op, were the dots on the outside of the wrap as well? Or was it that smearing that they all have? If it's the latter, the smearing is normal.

 

[classwife]

Best on the market though, class...they are Sony's...

Op, were the dots on the outside of the wrap as well? Or was it that smearing that they all have? If it's the latter, the smearing is normal.

isn't that a sign of some kind of arcing going on tho ?

 

[dubliquid]

yes the dark black smear dots are on the wrapping itself as well as the surface of the battery. i did try test to see if the dots on the wrapper would come off and they do but some stains are hard to remove.

 

[dubliquid]

isn't that a sign of some kind of arcing going on tho ?

i did read somewhere about arcing but i don't understand how or what causes arching or how to identify the issue if it is arcing. i need to do some more research.

 

[Topwater Elvis]

Are you sure the batteries are authentic Sony VTC?, lots of re wrapped fakes on the market.

 

[tj99959]

If you would please, post a pic of the bottom (ground end) of one of those batteries.

http://www.sun-vapers.com/how-to-spot-a-fake-sony-vtc5-battery/

 

[dubliquid]

Are you sure the batteries are authentic Sony VTC?, lots of re wrapped fakes on the market.

i've bought from well known sources on ebay. yes i know some ebay retailers should be avoided but I've bought from three different vendors on ebay and the issue is widespread. I purchased 2 vtc5's from a respectable vape shop in London and the issue is the same.

 

[jswag5]

maybe it is juice spilling on ur batteries and causings??

 

[classwife]

report received dubliquid...moved to Batteries and Chargers from New Members

 

[dubliquid]

If you would please, post a pic of the bottom (ground end) of one of those batteries.

here is picture of three grounds that are from batteries showing small signs of dark spots.



also a pic of one of the batteries

 

[a wandering soul]

That looks sketchy.. What ohms are you vaping at?

Via a possessed phone thats autocorrect is just silly

 

[dubliquid]

i vape from 0.4 to 0.8 i have 4 mods and four different builds lowest i go is about 0.45 ohms

 

[ImThatGuy]

Your batts look kinda moldy...just saying...

I've never come across these with the sonys I have or any other battery that I do use...so, I don't know...LOL

 

[dubliquid]

Your batts look kinda moldy...just saying...

I've never come across these with the sonys I have or any other battery that I do use...so, I don't know...LOL

what makes it worse is that bat with the spots above is only about 5/6 weeks old.

 

[dubliquid]

maybe it is juice spilling on ur batteries and causings??

i thought the same at first, i keep all my bats clean and check to see if juice is leaking inside the modsand they are always dry.

i don't see any juice inside my mods so i ruled that possibility out.

 

[Baditude]

I got nothing on this. However, I'll just say that Ebay and Amazon would be the last places that I would purchase mod batteries from due to the high number of counterfeit batteries being sold there. Not saying your batteries are fakes, but...

http://www.e-cigarette-forum.com/fo...-how-identify-counterfeit-sony-batteries.html
_______________

"Battery counterfeiting ... is a growing problem and all APV users need to be aware of it.

This is what happens: the counterfeiters buy reject Li-ion batteries in bulk, strip the covers off, and re-cover them with labels that change them to look like popular brands. In this way they can take a cell bought for 10 cents, re-work it, and sell it as for example an AW battery with a retail price of $10. The profits are very high and this practice is growing. It means that you never really know what battery you have unless you buy from somewhere with a verified supply chain. For example, all AW batteries offered for sale on Alibaba are counterfeits, and possibly dangerous." --- http://www.e-cigarette-forum.com/forum/ecf-library/129569-rechargeable-batteries.html

 

[dubliquid]

I got nothing on this. However, I'll just say that Ebay and Amazon would be the last places that I would purchase mod batteries from due to the high number of counterfeit batteries being sold there. Not saying your batteries are fakes, but...

http://www.e-cigarette-forum.com/fo...-how-identify-counterfeit-sony-batteries.html
_______________

"Battery counterfeiting ... is a growing problem and all APV users need to be aware of it.

This is what happens: the counterfeiters buy reject Li-ion batteries in bulk, strip the covers off, and re-cover them with labels that change them to look like popular brands. In this way they can take a cell bought for 10 cents, re-work it, and sell it as for example an AW battery with a retail price of $10. The profits are very high and this practice is growing. It means that you never really know what battery you have unless you buy from somewhere with a verified supply chain. For example, all AW batteries offered for sale on Alibaba are counterfeits, and possibly dangerous." --- http://www.e-cigarette-forum.com/forum/ecf-library/129569-rechargeable-batteries.html

i'm very much confident that all the batteries i have are genuine. not only due to the prolonged battery life of the batteries but i can't see one sign of any of them being fake.

the dark spots issue is happening to most of the batteries, also to bats i've purchased from reputable suppliers at vape meets. As classwife said in earlier post it may be due to arcing, possibly.
ty for posting the fake battery info, it's sensible double check

i've forwarded an email on to sony with images, hopefully they will get back to me with some clarity on the issue.