.60v+ sag underload on sigelei #19 normal?

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Jaiofspam

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just as the topic says, ive been experimenting with this mod and wondered if a .60v+ sag under load is normal? same coil(s), same mod, 2 different batteries with less than a handful of cycles each... sagging more than my sack in the summer :(

aw imr 1600mah 18650 @ 4.14v
28awg kanthal .3ohm dc on an igo-w
fires @ 3.55v under load measured at the post w/ dmm (avg of three 2sec fires)
= .59 sag

sony us18650vtc3 @ 4.17v <~~~ shocked as i thought these would out perform the aw's lol
28awg kanthal .3ohm dc on an igo-w
fires @ 3.45v under load measured at the post w/ dmm (avg of three 2sec fires)
= .72v sag

is it shorting out somewhere? ive cleaned all the contacts and added nyogel to the threads orrrrrr could this normal?

thanks in advance everyone! oh and mods, if this was posted in the incorrect subforum please move it accordingly. my apologies :)


edit: pardon, i meant voltage "drop" underload. semantics and nomenclature aside im sure the majority of you knew what i meant haha.
 
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Thrasher

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. 3 ohms? lots of amperage there, there is already the fact a battery at rest is not the voltage you will see, then add the dual coils (twice the strain)
if the ohms calculator is correct your pulling 13 amps, it helps to know what mod it might be in the contacts. but 55+ watts is beyond my experience. scary.................. i dont think the cheap clones are rated for such high wattage lol
 
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Jaiofspam

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. 3 ohms? lots of amperage there, there is already the fact a battery at rest is not the voltage you will see, then add the dual coils (twice the strain)
if the ohms calculator is correct your pulling 13 amps, very dangerous situation you got there. as the batteries are only rated for 10 apms maximum and the voltage is struggling to try and put out what you need.
at 56 watts i sure hope you trust your mod to hold in that battery if it pops.

might want to use the 30 amp sony




lol no subohm vaping a potential pipe bomb isnt normal

i believe the aw 1600mah is rated at 15c (25a)? should be fine at 14a burst, ive never held the button down longer on this thing for more than 4-5seconds ;)

as i stated before, this was an experimental build... im well aware of the risk lol
 
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Jaiofspam

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are you sure thats not the peak momentary?

pretty sure its 24/25a continuous, i know i know i know... pretty sure isnt good enough in the slr vaping world.
from my understanding/research theyre able to burst at far higher amperage than i would ever consider vaping at. dont quote me, but i believe 60a burst? if someone can confirm this that would be great... i believe mr. aw said so himself.
 

Jaiofspam

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Good LORD a .3 ohm dc?
I will never understand this sub-ohm thing. Seems like a lot of trouble just waiting to happen, especially given the lack of knowledge in battery limits / safety.
I blame that damn rap music.

thank god theyre imr's ;)

i vape a standard resistance genny build on the regular btw :)
 

Jaiofspam

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i never used them so i dont know. but im easily betting its in the contacts or the body of the mod as its just not efficient enough to push that kind of wattage cleanly

sooner or later someone will get that battery that slipped through QC lol

test it with a single coil around one ohm.


lol, knock on wood
i'll whip out the octopus @ .9ohm single coil and get those numbers asap :)
 

Jaiofspam

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AW 1600 IMRs are rated 10C continuous (16A). Lighthound rates them at 15C. And of course burst is higher so you are within the limits.

yeah i knew i was within specs, i wouldnt mess with the .3ohm dc build otherwise. i progressed slowly from .9-.7ohm single coil builds and spent a lot of time on building dc's to get them right. i was more concerned with the voltage drop on the 19... maybe i shouldnt have use a slr setup for the test but it was what was on there :)
 

Jaiofspam

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i never used them so i dont know. but im easily betting its in the contacts or the body of the mod as its just not efficient enough to push that kind of wattage cleanly

sooner or later someone will get that battery that slipped through QC lol

test it with a single coil around one ohm.

aw 1600mah imr @ 4.13
smok octopus 28awg .9ohm @ 3.72 measured at post same deal as before
.41 drop
 
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Jaiofspam

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On my 19 I can pull a .2v drop under load on a 1.2ohm coil. Never needed to go any lower. I'm thinking your drop will decrease significantly once you get to 1ohm or greater.

hmmm that looks like the case, cant test anymore as my 2yr old daughter has escaped the bedroom by using a tiny chair to hop the kiddie gate... jesus
 

minimalsaint

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hmmm that looks like the case, cant test anymore as my 2yr old daughter has escaped the bedroom by using a tiny chair to hop the kiddie gate... jesus

Oh, buddy- It gets better. The kids are crafty little devils. When my son was 3 it was a nightly occurrence..... WHUMP.... Thumpthumpthumpthump...... Daaaaaddyy?
 

Jaiofspam

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On my 19 I can pull a .2v drop under load on a 1.2ohm coil. Never needed to go any lower. I'm thinking your drop will decrease significantly once you get to 1ohm or greater.

update: tested the 19 with my aga-t

aw 1600mah imr @ 4.12v (measured from the 510 connection for each test btw)
30awg 2.2ohm coil on a aga-t2 @ 3.9v measured at the post same as before
.22v drop

guess this sigelei is within spec. wow, the voltage sure does drop under load tons when vaping slr.

time to enjoy some .3ohm dc vaping
(11.5a, 39.6watts according to all the above... far from the calculated 14a, 58watts),


yes im actually vaping to this right now lol...
 
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