obviously nobody is going to do this, but could it be done in terms of the batteries actually functioning correctly and not venting immediately?
theoretically, could you thread 2 nemmys to make a 2x18650 mod?
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Don't do it, it may be possible with all the different tube sizes for the nemmy....but don't do it!!!
I know there are folks who have done it (with other mods)...I'm one...did it for about 30 seconds, but my caution got the best of me.
I know there are folks who have done it (with other mods)...I'm one...did it for about 30 seconds, but my caution got the best of me.
don't worry, I have absolutely no interest in doing this - my question is more why NOT do it in terms of safety? obviously it would be unsafe, but why?
Assuming that mechanically you can attach both tubes, I don't see why not, The batteries are not likely to explode unless you create a short of some sort, or use a ridiculously low ohm resistance, however instead of 4.2 V you'll have 8.4 v which is likely to pop most regular coils or burn really hot so that your juices will taste like crap. At the end what matters is how hot the resistance is going to get and I am sure something can be built to handle that voltage.
Not worth a proper response? A person asks a question pretaining to what could be a desasterous situation and he gets that response as an answer?
I'm not all that noobish, but I was curious to see the answer, thinking it would pop the coil at the very least. Then again, someone would build a higher ohm coil and try to fry an egg or boil water.
I'm not all that noobish, but I was curious to see the answer, thinking it would pop the coil at the very least. Then again, someone would build a higher ohm coil and try to fry an egg or boil water.
Back when I first started vaping my first mod was a maxi roughstack from madvapes and I ran stacked 18350's in it for a long time with no issues. I loved the hot vape I got out of it. That was back when cartos were the big thing before tanks. I know the cartos I was running were very high ohms like 4-5 if my memory is correct.
Stacked batteries can be dangerous, because of them not being balanced. If I'm going to run anything in a series I use protected batteries. I really don't do this with any mods though, just flashlights.
Even worse, stacking junk batteries;
http://www.candlepowerforums.com/vb/showthread.php?280909-Ultrafire-18650-3000mA-exploded
Even worse, stacking junk batteries;
http://www.candlepowerforums.com/vb/showthread.php?280909-Ultrafire-18650-3000mA-exploded
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Theoretically possible, definitely not advisable
Yes, a lot of us used to stack batteries for high-voltage vaping in the past. That practice has dwindled quite a bit nowadays with all the high power VV and VW mods available that weren't around back then. That change in the industry was one of the good ones IMHO, both for PV performance and battery safety reasons. "Stacking" batteries (putting them in series in an unregulated mod) is definitely a practice that is better off left in the "don't try this at home" category these days
Yes, a lot of us used to stack batteries for high-voltage vaping in the past. That practice has dwindled quite a bit nowadays with all the high power VV and VW mods available that weren't around back then. That change in the industry was one of the good ones IMHO, both for PV performance and battery safety reasons. "Stacking" batteries (putting them in series in an unregulated mod) is definitely a practice that is better off left in the "don't try this at home" category these days
I'm not going to say it's dangerous, but it does come with its own set of risks that need to be addressed. Not addressing those risks, you jump right over the boundary into "this is dangerous" territory.
Even stacking batteries in regulated mods requires close attention to battery health, doing so in a mech increases the risks even more. YOU are the only thing responsible for the health of those batteries - there's no chips or boards keeping an eye on things for you.
Even stacking batteries in regulated mods requires close attention to battery health, doing so in a mech increases the risks even more. YOU are the only thing responsible for the health of those batteries - there's no chips or boards keeping an eye on things for you.
The real answer is.... If you put two batteries in series you will double the voltage across your coil which will also double the amperage through the batteries. The better idea is to put two batteries in parallel which will keep the voltage the same but double your current handling capability.
I applaud those above that rather than just say don't do it, explain what the risk are. It's better to understand the risks and dangers than to just say "Here there be monsters!"
Here is some general information on running batteries in series and in parallel. This will give you the general hazards and benefits of doing this in general, not just for vaping.
For vaping, you want to take a look at the resistance on the circuit and the capability of your batteries. You could run ohm's law using 4.2 volts for each battery and the max continuous discharge amps for your batteries. For a Sony US18650VTC5 (30 amps) battery, 2.8 ohms is the lowest you could go. Realistically that is an extremely conservative number, since the voltage drop with that resistance and the size of the mod would make your volts much lower and the 30 amps is continuous, not pulse or burst discharge. But it is a good safety margin.
Now, to the original question
Assuming with 2 Nemesis you have 2 x base/18350 tubes (can only use one), 2 x 15 mm/18500 extension tubes, 2 x 30 mm/18650 extension tubes, and 2 of those 4 mm/dress(?) extensions and that your are using flat top 18650 batteries. To make your super Nemi, you would go:
Base -> 30 mm -> 15 mm -> 4 mm -> 30 mm -> 15 mm ~= 129 mm of space for batteries.
The Blue is for the first 18650 and the red is for the 2nd 18650. It is 1 mm short, but given that the Nemi is mildly telescopic at the switch, that should be fine.
For pure ridiculousness here is SuperFrankenMod V3. A mashup of 3 mods and the extension tube on a Vamo to hold 4 18650 batteries. Could have gone to 5 batteries; but that would just be silly
Here is some general information on running batteries in series and in parallel. This will give you the general hazards and benefits of doing this in general, not just for vaping.
For vaping, you want to take a look at the resistance on the circuit and the capability of your batteries. You could run ohm's law using 4.2 volts for each battery and the max continuous discharge amps for your batteries. For a Sony US18650VTC5 (30 amps) battery, 2.8 ohms is the lowest you could go. Realistically that is an extremely conservative number, since the voltage drop with that resistance and the size of the mod would make your volts much lower and the 30 amps is continuous, not pulse or burst discharge. But it is a good safety margin.
Now, to the original question
Assuming with 2 Nemesis you have 2 x base/18350 tubes (can only use one), 2 x 15 mm/18500 extension tubes, 2 x 30 mm/18650 extension tubes, and 2 of those 4 mm/dress(?) extensions and that your are using flat top 18650 batteries. To make your super Nemi, you would go:
Base -> 30 mm -> 15 mm -> 4 mm -> 30 mm -> 15 mm ~= 129 mm of space for batteries.
The Blue is for the first 18650 and the red is for the 2nd 18650. It is 1 mm short, but given that the Nemi is mildly telescopic at the switch, that should be fine.
For pure ridiculousness here is SuperFrankenMod V3. A mashup of 3 mods and the extension tube on a Vamo to hold 4 18650 batteries. Could have gone to 5 batteries; but that would just be silly
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