k, Im using panasonic ncr18650pd 18650, says 10amp on the site. think its safe to use with a .4 coil? Used it today for a bit and it sames fine, battery isnt getting hot. Just want to make sure im safe thanks
You continually cry that it's "nearly a dead short" and you hide behind the fact that you didn't say it was a short.
k, Im using panasonic ncr18650pd 18650, says 10amp on the site. think its safe to use with a .4 coil? Used it today for a bit and it sames fine, battery isnt getting hot. Just want to make sure im safe thanks
k, Im using panasonic ncr18650pd 18650, says 10amp on the site. think its safe to use with a .4 coil? Used it today for a bit and it sames fine, battery isnt getting hot. Just want to make sure im safe thanks
Well, by seeking actual information and reading it, and not running around like a chicken without a head screaming bloody murder. Issues with stacked batteries have almost always been because of the interaction between the two batteries, not because of a high discharge rate related to the load.
Interaction of the batteries is what I'm talking about. See last stuff below.
You continually cry that it's "nearly a dead short" and you hide behind the fact that you didn't say it was a short. You clearly intend people to conflate that particular resistance with a dead short. It's not even close from a number of perspectives, so that blanket statement is false.
I intend no such thing. You didn't read/interpret it properly.
High discharge rate does NOT lead to internal shorts!!! That is a flat out irresponsible statement to make. And fuses do nothing to protect against internal shorts.
Internal to the battery or the PV? Anyway, fuses protect against external over-amps...of course. Never said anything else. Are you....making this up as you go along?
The thought process is: High discharge = hot battery. Heat leads to electrolyte breakdown which leads to internal shorts. That's also why you can't charge them super-fast like NiMH for example. The irresponsible statement to make is that there is zero danger. Not the "use caution and think" type of statements I'm making.
It doesn't matter nearly to the degree you make out, and that statement is not true by itself. There are many variables you are not specifying that change the picture completely. Resistance doesn't matter on regulated mods with regard to battery stress. A super high drain battery or battery pack wouldn't be stressed by that load.
21 amps and it wouldn't be stressed? The manufacturers probably disagree. Too late for me to look it up and it's a generalization anyway without a specific battery spec.
Excessive heat degrades these batteries. Most manufacturers caution against overheating them for a reason. But I guess you know more than they do. And now we have to cherry pick with "super high drain" vs "high drain". See, that's where it gets confusing for people. And you're altering/qualifying stuff now with "super high drain"....
Please show your work how you applied ohm's law to what you said.
No, I'm correcting gross misinformation and hysteria. Your being badly wrong does not make the person who corrects you a troll.
k, Im using panasonic ncr18650pd 18650, says 10amp on the site. think its safe to use with a .4 coil? Used it today for a bit and it sames fine, battery isnt getting hot. Just want to make sure im safe thanks
External shorts are actually not really a big deal. Every lithium battery testing standard includes external short testing.
External shorts are probably the mildest abnormal condition our batteries face, because they are an extension of the normal operation of the battery. None of the battery's operational design is bypassed or defeated by external shorting. Most of our high drain batteries can take dead shorting without even venting.
BTW I am a strong supporter and practitioner of high wattage vaping. The additional risk from high wattage vaping of all types is actually quite small compared to the baseline risks of vaping.
My Sony Battery is rated to 30 Amps and collapses with a short, so I can safely test this.
External shorts have caused none of the mod explosions we have heard about.
Well, by seeking actual information and reading it, and not running around like a chicken without a head screaming bloody murder. Issues with stacked batteries have almost always been because of the interaction between the two batteries, not because of a high discharge rate related to the load.
You continually cry that it's "nearly a dead short" and you hide behind the fact that you didn't say it was a short. You clearly intend people to conflate that particular resistance with a dead short. It's not even close from a number of perspectives, so that blanket statement is false.
High discharge rate does NOT lead to internal shorts!!! That is a flat out irresponsible statement to make.
And fuses do nothing to protect against internal shorts.
No, I'm correcting gross misinformation and hysteria. Your being badly wrong does not make the person who corrects you a troll.
Right, but you understand that your results don't reflect what others get with their rigs, correct?
I get this feeling people do what you did then assume, well others are just burning the crap out of their stuff and they like it that way ... which is not true.
The Sony will do 30 Amps, my panasonic High Drain will do 10 amps continuous and 16 amp burst.
Since vaping is using burst mode, the majority of name LIMN brand batteries will support it and I'm operating within the spec of the battery.
If you ever do get into a sub-ohm build, you'll be hooked like the rest of us. Chasing that cloud and glorious flavor!
The unprotected ncr18650pd handle like an ICR battery. See post #27 in this thread. I would not use these in a PV.
I use a multi meter to check volts and ohms. The winding process will leave me a resistance about +-4% repeatable. I have checked the voltage under load a couple of times and if I remember correctly it was around 3.70 V with that charged battery and my 0.6 ohm coil on my mod. 23 watts, 6 amps. That is about as high as I like to go on that build.
So while im here, can some of you sub ohm guys tell me exactly what battery I should be using, research a bit and asked and thought it was cleared my panasonic would be good to go but guess not. brother has to order batteries and I want to make sure next time we actually get good safe batteries for mechs
The unprotected ncr18650pd handle like an ICR battery. See post #27 in this thread. I would not use these in a PV.
So that's one main reason why stacking batteries is frowned upon in mechs these days.
The unprotected ncr18650pd handle like an ICR battery. See post #27 in this thread. I would not use these in a PV.
That's just incorrect and misleading. Short circuiting a battery, especially a lithium of any chemistry is a *very* big deal. You want to avoid it all costs. Short circuits will damage the battery whether they result in an immediate internal short or not. Considering the amount of energy stored in these batteries they deserve a great deal of respect regardless of the plate chemistry that is used.
Oh, and yes batteries are tested for short circuit... to destruction. The purpose is to observe the failure mode, not to prove that it is safe to do so. Your car has probably been tested and will have a safety score. That doesn't meant that it's safe to crash into a wall at 60mph, it just means that you may live, if the safety rating is high enough.
You are kidding, right? This is so far away from what we need to be telling people...
Considering that we don't even know what the "baseline risks of vaping" actually are, I suspect this is largely a fallacious argument. Battery safety is something that we should be extremely concerned about, especially since battery damage can be accumulative. The best we can say is that at some point in an abused batteries life it is going to fail. How it fails and under what circumstances it largely a matter of chance, however it's usually at a point of greater stress.
I actually wonder how many have actually occurred but the perpetrator realises they have been a Richard and quietly bins the evidence? Add to this, the short may not immediately result in thermal runaway but simply leave the plates in a damaged condition; Actual failure could occur later when the battery is charged and some other dangerous event happens such as dropping or overcharging.
Actually... while it's hard to define "Nearly" in battery terms, I think this qualifies. The reason is that the internal resistance of IMR batteries is likely to be in the range 0.1 to 0.2 ohms, which means that up to half the heat generated could be occurring on the plates (and that is the crux of the matter when it comes to deciding whether or not it's a good idea to short any battery).
Actually, you need to seriously re-think telling people it's safe to short out any lithium battery. Safety is never irresponsible, but the opposite would appear to be true.
I have tried sub ohm, and like others have stated it is NOT for everyone, if you enjoy it and are being safe and are not suggesting others try something stupid that can get them hurt, go for it.
I don't care for the hot vape it gave me, or the lack of flavor. Also I did go through more juice and more batteries in a day.