How low do you go with 20A batteries?

[jj6404]

I know someone has asked this question a hundred times already but unfortunately I can't find the answer.

So I have a set of efest 2500 purples that I know are re-wrapped LGs so they are 20A CDR. And I have a set of the Samsung smurfs 2400? Mah that are also 20A rated.

I'm wondering how low is it really safe to go on builds with these in an 18650 mech mod. I know everyone says give yourself some head room, but how much head room is considered "safe"?

Is 0.35 relatively safe? 0.3? 0.4?

Different articles say different things and I would really just like to hear from multiple people




Sent from my iPhone using Tapatalk

 

[Haadkoe]

I just happened to ask this very question the other day... This should help:

Http://www.e-cigarette-forum.com/fo...ld-go-those-efest-35-amp-18650-batteries.html

 

[Froth]

You're going to get different responses from different people, many people don't like to go over the Constant Drain Rate of the battery and will vehemently oppose anyone who dares say they do it. However, the reason it's called a Constant drain rate is because there is also a non-constant drain rate, AKA "Pulse" which is a word that gets lots of people to take notice and type many paragraphs of back and forth banter. I'll put it plain and simple, I push the limits really really far and I don't recommend ANYONE else do this.

I've pushed both the LG HE2 and the Samsung 25R well past the 20A constant spec, I've pushed both of them into the 40A+ Pulse drain rating and they survived just fine(at 40A I tend to only fire the mod for 3-5 seconds, if that). Over the past four months I have been constantly using Samsung 25R's at 0.12 ohms every single day charging at least four batteries a day and I have never once had any sort of scary incident or battery venting scenario occur, EVER. None of them have even gotten warm enough during use to bother mentioning, they're seriously good batteries.

Edit: To answer your actual question, the resistance 0.35 ohms is very very very safe on an LG HE2 or Samsung 25R IMO.

 

[jj6404]

You're going to get different responses from different people, many people don't like to go over the Constant Drain Rate of the battery and will vehemently oppose anyone who dares say they do it. However, the reason it's called a Constant drain rate is because there is also a non-constant drain rate, AKA "Pulse" which is a word that gets lots of people to take notice and type many paragraphs of back and forth banter. I'll put it plain and simple, I push the limits really really far and I don't recommend ANYONE else do this.

I've pushed both the LG HE2 and the Samsung 25R well past the 20A constant spec, I've pushed both of them into the 40A+ Pulse drain rating and they survived just fine(at 40A I tend to only fire the mod for 3-5 seconds, if that). Over the past four months I have been constantly using Samsung 25R's at 0.12 ohms every single day charging at least four batteries a day and I have never once had any sort of scary incident or battery venting scenario occur, EVER. None of them have even gotten warm enough during use to bother mentioning, they're seriously good batteries.

Edit: To answer your actual question, the resistance 0.35 ohms is very very very safe on an LG HE2 or Samsung 25R IMO.

Can I simply ask: you seem to know and understand battery safety so why do you do this?

And btw I've noticed my batteries get warm on 0.35-0.5 builds


Sent from my iPhone using Tapatalk

 

[Das Auto]

Is it your battery getting warm? Or mech mod and the Tank/Dripper that are getting hot?

Those are 2 different things.

And lots of people vape at those resistances and have no issues. Just be sure you are using Charged batteries and when they start to get low, that is when the possibility of said negative issues occurring.

 

[jj6404]

Is it your battery getting warm? Or mech mod and the Tank/Dripper that are getting hot?

Those are 2 different things.

And lots of people vape at those resistances and have no issues. Just be sure you are using Charged batteries and when they start to get low, that is when the possibility of said negative issues occurring.

I realize they are two different things. I said battery, because I take my battery out of my mod and it's warm.

Just because a lot of people do something does not mean it is even remotely safe. Pushing a battery to its extreme amp limit is not even remotely safe. Is it even worth it? The more injuries happen, the more negative stigma will develop around vaping and make us all look bad. If you're going to build that low, why not just use a battery with a higher amp limit.


Sent from my iPhone using Tapatalk

 

[93gc40]

10-15 amp max draw. Say .5 ohm or higher.

 

[SLIPPY_EEL]

Only as a test i've taken a single purple efest 35A which as you already know is really a rewrapped Lg he2 20A as low as 0.06Ω, after a few pulses the battery itself started to warm up. indicating to me that it was being pushed past its limit. Ofcourse not every He2 is going to be exactly the same even when buying from the same source.
The following i mention just for those not getting even close to the batteries limit and seeing excess heat. Dirty contact's on a mod and or the battery will cause heat build up in those areas and also a test build without air being drawn through the atty or without a wick and juice to keep it cooler while firing, in turn transferring more heat then actual real world use.
My experiance with hotter builds is that they stay cooler becouse you are only pulsing for a second whilst still getting satisfying nic/flavour and needing less hits with back to back pulls not needed.

People are either gonna push batteries or not on their own accord wether we say its safe of not but if you do then another thing i've started doing is only discharging the battery to 4v becouse as you draw power from your battery under load the volts drop dangerously low to its limit.

on a single battery wether its he2, vtc5 or 25r i only go as low as 0.1Ω and on a dual parallel mod 0.08Ω.
I've been doing this for a year now and the batteries have stayed strong.

i also wanna add that i would never vape a really low ohm build out and about, i keep that for home or for the garden where you cant indanger others, out and about driving etc i take the trusty 100w sigelei.

you will either love or hate my post but i think its much better & safer to give advice to those that are doing so or going to anyway rather than just blank them!?