So I killed my Sd this weekend

[slojas]

Yes I was a slob and got fluid into the connector and flooded the sensor, really liked that thing, brought it everywhaere and used it everyday.

Did a post mortem teardown and found the following-

The metal ends are press fit and can be pulled off whith some vice grips and some wiggling.
The negative terminal wire for the battery is soldered to the bottom cap.
The sensor appears to be an acoustic microphone type.
There is a very tiny LED indicator inside the connector and can be seen in action if you watch the hole while firing the bat.
The battery was a bit of a surprise, it seems to be a custom unit, it is wrapped in a foil bag, after you cut open the foil bag you find a wet uncapped spiral wound cell, pull on the end terminal and it will unravel into two strips of coated copper foil and one strip of insulator all saturated in a strong smelling fluid (proper ventalation and gloves reccomended for this).

So now I'm waiting for Canvape to stock the Ego mini and try that next (hopefully they stock it soon).


In other news I donated my 1000MaH Ego twist and a few Boge 2.0 carto's to my father in law as he was complaining that the 510 batts had no life and the stock 510 cartos were weak. +10 Karma for me.

Recieved some adapters to fit 510 carto's on my E9 batterys (808 D2), the draw on the E9 carto's is murder so I thought this would make good use of the batterys, Nope, still need to suck like a Hoover to get the buggers to fire.

My Fatboy 1300MaH and old style 5 click Ego VV 900MaH pass-thru(non LCD) still going strong.


And thats the news, after the break, sports.

 

[SloHand]

... The battery was a bit of a surprise, it seems to be a custom unit, it is wrapped in a foil bag, after you cut open the foil bag (!?!) you find a wet uncapped spiral wound cell, pull on the end terminal and it will unravel into two strips of coated copper foil and one strip of insulator all saturated in a strong smelling fluid (proper ventalation and gloves reccomended for this).

Hey slojas, sorry to hear about your SD. You must have been charging that thing 10 times a day

Perhaps I'm missing something here though on your breakdown of the battery - I just don' see the point. You took apart a LiPo battery pack to....see how to charge it? or perhaps what protection circuitry was in there? You don't need to burn things to see that... Its pretty obvious why lithium based batteries catch fire, or worst, explode and why many batteries of different chemistries can explode.

I'm all for taking things apart and tickering around - just don't know why you posted that without providing some warnings about the dangers of opening up lipo batteries. Am I the only one? I am half asleep.

Please be careful with those batteries. I have seen how volatile they can be first hand from my RC days.

Just saying …..

Hope you were doing that outside

 

[CityLights]

The battery was a bit of a surprise, it seems to be a custom unit, it is wrapped in a foil bag, after you cut open the foil bag you find a wet uncapped spiral wound cell, pull on the end terminal and it will unravel into two strips of coated copper foil and one strip of insulator all saturated in a strong smelling fluid (proper ventilation and gloves recommended for this).

It is NEVER recommended to open a Lithium Battery!!
The Lithium will begin to oxidize as soon as it meets air/water.
I hope you took that stuff out of your house, it's very reactive (Fire) and highly Toxic!

 

[BuzzKilla]

I hope that lipo was completely drained.
and thankfully it was small enough to not hold that much energy.


This is a facepalm worthy situation...

 

[fourtytwo]

Lipos are very dangerous to open!
There are a number of posts on Youtube of lipo battery fires. Just search for "lipo fire"

 

[teabagger]

wow... someone skipped highschool chem class.

 

[slojas]

Alot of assumptions here oh boy.
I have some background in these sorts of things and assure you I was in no danger, proper precautions were taken to protect hands and eyes and face, the burst and fire hazard from a 300 MaH battery is fairly low, especially with this design as there is nothing to hold the pressure, it just fizzes along the length of the tiny copper strip, kept submerged in a plastic tub of water in a breezy open garage, the castastophic runaway of toxic gas and fire are quite unremarkable.

That said, the larger batts do indeed carry a much higher risk of injury and would never be subjected to such scrutiny on my workbench.

 

[CityLights]

Um hum.. and you wore a respirator to, didn't ya!
I Seriously disagree with your over confidence to deconstruct a Lipo battery and then telling the public "proper ventalation and gloves reccomended for this"

It's not just the mAh's and cell charge of a lithium battery that determines it's safety for deconstruction. This is hazardous materials we're talking about and there is disposal regulations to prevent environmental damages.

A low or under charge of a Lithium pack can also create toxic fumes no one should be exposed to.

Please tell us.
What did you do with the now Toxic water from the plastic tub you used?

The silver looking foil and no canister is standard Pack, nothing special. Every battery in our e-cigs can be source traced back to manufacture supply catalogs. They are not custom other than "options" of printing JoyTech on them, epoxy dipped, adding protection circuits or leads...

It is NEVER recommended to open a Lithium Battery!!
Proper disposal should be carried out.
Use the disposal depots at Home Depot, Staples...

 

[fourtytwo]

I agree with CityLights, and any call for caution, if only for the fact that many read this forum.
Vaping has already had incidents relating to batteries. No need for someone else, perhaps reading your original post, and believing it is safe to open a lipo.
I am not questioning your expertise. I would however, question any action that may result in someone else doing anything unsafe.

 

[jhfw]

"Today, lithium-ion is one of the most successful and safe battery chemistries available. Two billion cells are produced every year.

Lithium-ion cells with cobalt cathodes hold twice the energy of a nickel-based battery and four-times that of lead acid. Lithium-ion is a low maintenance system, an advantage that most other chemistries cannot claim. There is no memory and the battery does not require scheduled cycling to prolong its life. Nor does lithium-ion have the sulfation problem of lead acid that occurs when the battery is stored without periodic topping charge. Lithium-ion has a low self-discharge and is environmentally friendly. Disposal causes minimal harm."

The Battery University is your friend.

Paranoia of technology is rampant in to days society fueled by politicians who never passed a science course or lefty environmentalists, who wish to control how other people should live.

I might add that when I started vaping I disassembled several 380 maH ecigs on my kitchen counter with no problem. I did this mainly to satisfy my belief that I was being charged more than 20x the value of the ingredients.

 

[slojas]

Um hum.. and you wore a respirator to, didn't ya!
I Seriously disagree with your over confidence to deconstruct a Lipo battery and then telling the public "proper ventalation and gloves reccomended for this"



Please tell us.
What did you do with the now Toxic water from the plastic tub you used?

Please tell us what have you done with every dead AA, AA, D, C Both Alkaline and heavy duty battery you have ever used in your life while I go give this basin of water to blind orphans to drink.


Internet morality is a funny thing.

 

[CityLights]

slojas, from my previous post you already know I recycle batteries at the collection depot. I'm consciously aware of what e-waste chemicals are in the local water table and Lake Ontario. Think of the ><)))}°> fish and future generations of humans, be a responsible steward.