Just vented my first 2 batteries
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If Efest followed AW's philosophy and bought huge lots of cells for testing and sorting they could have a great name and reputation. With AW you get the best of the lot that meet or exceed specs and the rest are subbed out to other companies.
Few batteries can meet a 30A drain test, much less a 35A CDR rating. Apparently, Efest doesn't care about safety when they publish the pulse discharge rating as a CDR.
Few batteries can meet a 30A drain test, much less a 35A CDR rating. Apparently, Efest doesn't care about safety when they publish the pulse discharge rating as a CDR.
Why do you persist in interjecting a Red Herring into what was obviously a mod problem or perhaps a torn wrap problem?
If you have evidence that efest batteries are rejected for safety reasons please cite a link.
I don't think the batteries themselves are to blame for this incident. They weren't under load when it occurred.
Although Efest batteries have historically overstated their pulse amperage, I can't complain using them in lower amperage applications like my preferred vaping style. The reds and purples work fine as 10 amp batteries.
It's never a good idea to generalize and demonize anybody or any organization. ECF's goto tester of batteries, Mooch, found the latest Efest battery tested out as advertised and uses a licensed high quality cell - Efest Metallic Purple 20A 2500mAh 18650 Bench Test Results...accurately rated 20A, the HohmWork
Although Efest batteries have historically overstated their pulse amperage, I can't complain using them in lower amperage applications like my preferred vaping style. The reds and purples work fine as 10 amp batteries.
It's never a good idea to generalize and demonize anybody or any organization. ECF's goto tester of batteries, Mooch, found the latest Efest battery tested out as advertised and uses a licensed high quality cell - Efest Metallic Purple 20A 2500mAh 18650 Bench Test Results...accurately rated 20A, the HohmWork
Not rejects
B cells.
Big difference.
Regardless there's absolutely no relevance to this issue pertaining or related to the cell brand. Period.
Tapatyped
Thanks for that, it makes perfect sense to me now how a single cell can short both in parallel configuration.
Repeating non relevant info ad nauseam? What for? And, by the way, I prefer Efest 3500 mah to AW 2500 mah because of my vaping specifics.
And further thinking about the single cell short theory, I am thinking that how the batteries are placed into the mod, can help minimize any risk of this occurrence.
Wouldn't it be prudent to insert the positive end in first, then when it's seated, to snap the negative down into position. That way you won't have the close proximity (even though normally protected by the wrap) negative and positive gap traversing a conductor ( positive contact of the mod). This will change the way I insert cells into any sled type cell holder from now onward. I have learned something here. Thanks for sharing Spence.
I have posted this multiple times, I believe batteries in parallel should be fused individually. This appears to be a good example of why.
Button top batteries and connectors with slots that wouldn't allow conductivity with a reversed battery would be a good start in a mech mod. At least it just wouldn't work if you reversed a battery because the flat end wouldn't make contact with a recessed slot connector designed for a button top.
I prefer button top batts over flat top batteries for safety. The button spaces the battery casing away from the connector if there's a split in the sleeve. I think flat top battery devices should be required to spend the extra $2 for a 200W Schottky diode and develop a method to prevent cracked sleeves from shooting.
I prefer button top batts over flat top batteries for safety. The button spaces the battery casing away from the connector if there's a split in the sleeve. I think flat top battery devices should be required to spend the extra $2 for a 200W Schottky diode and develop a method to prevent cracked sleeves from shooting.
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Most battery powered devices I have seen the Negative is a spring or spring loaded. With this design it is not possible to connect positive first.
Check out the Anubis parallel box. Brilliant. The negative battery adjustable contacts are milled a certain way so if the batteries are inserted wrong(pos down) it wont connect.
With a true coil spring you can compress the spring enough so that the positive contact is open until you release tension on the spring. I was referring to the tab type contacts in the OP's photos. My Clouper mini has just such metal tab contacts.
Just my opinion here, nothing at all wrong with parallel mechs. I use a few MCV Raptors that are fully mechanical, not like the ops unregulated. No contacts molded into a plastic battery sled, no mosfet/wires, less points of failure.
Yap, if you don`t know which end is "UP", help yourself out and put a mark on it, a strip of tape, a marker arrow, some sort of "idiot" label. Mine are all so marked for my Bigfoot cause sometimes I can be a idiot too.
Hits Parallel Mod,
Hits Parallel Mod,
I've been on the hunt for one of those BigFoot boxes. No luck.Yap, if you don`t know which end is "UP", help yourself out and put a mark on it, a strip of tape, a marker arrow, some sort of "idiot" label. Mine are all so marked for my Bigfoot cause sometimes I can be a idiot too.
Hits Parallel Mod,
I dunno if anyone told you this, because this thread is pretty large and I didnt want to read it all day. In your original post you said you took them off the charger and stuck them directly into your mod to use. You should never ever take batteries off the charger and use them immediately. Never ever ever. If you do you are risking venting any time you do it. I always let mine sit for about an hour afterwards to settle. And in like 4 years of vaping I have never had a battery vent on me.
If you go back in the thread you will see that the "need" for battery venting was already hashed out. The short story:the idea of resting came from a suggestion by an admin here based on purely anecdotal observations. Correlation does not equal causation, particularly when the correlation is quite anecdotal.
In the interim this vaguely backed up recommendation has mutated into dire warnings of certain death and destruction, with no basis in fact.
I previously challenged anyone to cite an authoritative source even mildly recommending resting. Such citations have not been forthcoming. I don't think they exist.
Please research things before you perpetuate propaganda endlessly.
@Baditude : it is posts like this that caused me to lean hard on the proof behind this particular piece of what is basically propaganda now. What is constantly bandied about now has no relationship to what rolygate actually suggested.
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You use alot of big words and fancy sentences to say the simplest things. When I first started vaping my ego twists and vision spinners had it in the package not to use it right off the charger for risk of venting. I have continued with safely letting them cool down after a charge, no matter what the battery, or charge method/amps used to charge. The purpose of my post was not citing exact facts that are based in 100% fact, and is a documented risk. But it was on lithium ion batteries I have purchased in the past. And as a rule of thumb, it cannot be bad to be more careful and take every precaution to not blow up your batteries.
Now if i was saying something like rub them on your belly before putting them in your mod, then I could understand the obvious insult when I am merely presenting a fellow vaper with precautions that i personally take. But seeing as you have also no evidence to refute my suggestion, is that not the same presumption that you made to my suggestion? Using fancy big words and sounding intelligent does not make your insult any less insulting. In fact, I would have to say more so. Maybe give this thread a read. Battery resting? And this is just the first thing i found using a google search.
I mean sure, its extra precaution. But you like having that emergency brake in your car right? May come in handy at some point? Same theory here.
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