That's Insane! The world's largest mod/E-cig?

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Arnie H

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Someone on Facebook mentioned this and I said "your insane!".

He suggested the possibility of running several 18650s or 26650s in series (stacked).

Is it possible?

Using the telescopic tubes and joining pieces from several mech mods, you could fashion a tube that could hold four 18650s or 26650s. The resulting mod would be nearly a foot in length (not including tank/carto drip tip). And from 22 tp 30 mm in diameter.

You could use IMR batteries and between each battery use a one time vapesafe fuse (to keep the resistance in the circuit down).

4x5000 mAh 26650 batteries could yield = 200 hours (over 8 days) of theoretical vape time. A large 10 ml tank might compliment it.

Would this setup quadruaple the output voltage thereby frying your juice/coil?

Would the addition of a kick or a control head from a regulated device, allow you to adjust power?

Of course I am not advocating it, because of the danger, but was just curious if it had ever been done and whether it was possible. :)
 

ScottP

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Someone on Facebook mentioned this and I said "your insane!".

He suggested the possibility of running several 18650s or 26650s in series (stacked).

Is it possible?

Using the telescopic tubes and joining pieces from several mech mods, you could fashion a tube that could hold four 18650s or 26650s. The resulting mod would be nearly a foot in length (not including tank/carto drip tip). And from 22 tp 30 mm in diameter.

You could use IMR batteries and between each battery use a one time vapesafe fuse (to keep the resistance in the circuit down).

4x5000 mAh 26650 batteries could yield = 200 hours (over 8 days) of theoretical vape time. A large 10 ml tank might compliment it.

Would this setup quadruaple the output voltage thereby frying your juice/coil?

Would the addition of a kick or a control head from a regulated device, allow you to adjust power?

Of course I am not advocating it, because of the danger, but was just curious if it had ever been done and whether it was possible. :)

Doing that kind of stuff is how people blow their lips off and their teeth out.
 

Rocketman

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Details would matter. Was it stacked little batteries or stacked big batteries?
Properly designed, with protection, stacks of cells can safely be used.
Here's a 12 volt pack (3 cells in series and 2 strings in parallel for 62 watt hours) using six 2800mah high energy, 4.35 volt cells, and a controller board in a home made flashlight (35 watt HID). It has a charge/vape port to connect a homemade buck pass thru using an OK-R module in an old eGo hull. It's all in how you engineer it.
VapeLight_zps55aa273d.jpg
 
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Mike Sheda

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Gee, I thought stacking batteries was the same as saying in series? That would make a voltage that would be "inadvisable" according to past posts being deleted (and I agree".

Maybe you meant connecting in parallel. That would increase the mah's.

if you stack em in a tube, unless you have special wiring your stacking, not in increasing amps, just volts
 

ThetaReactor

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Yeah. Stacking them will boost voltage, not capacity. Maybe you could use a modified genesis atty with thirty wraps to get the resistance up to a similarly outlandish level so you're not pulling insane current and 'sploding things.

(Some quick math suggests that four batteries against a five ohm coil would net you around 45W at a mere 3A.)
 
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Rocketman

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I think I am just gonna buy me a 12volt car battery, put it on a pack frame, run some cables over my shoulder, build me a 5vdc IC regulator, and attach it to a eGo head and call it the eGo Mutha Humpa

Car battery be a little heavy to pack around.
How about one of these?
BackPack-PassThruSupply_zpsfb7a6dcb.jpg
 

ScottP

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Gee, I thought stacking batteries was the same as saying in series? That would make a voltage that would be "inadvisable" according to past posts being deleted (and I agree".

Maybe you meant connecting in parallel. That would increase the mah's.

Two batteries in series does increase voltage. It does NOT increase current or power. However the higher voltage ability of dual batteries across the same resistance can try to pull more power than the batteries are rated for (this can be a big problem in unregulated devices). I am not saying this is the only time a batter can fail. I am just saying overloading batteries can increase your chances of being injured.

I am also not saying stacking batteries is inherently bad either. We see it all the time in flashlights, handheld games and all kinds of things. As long as the resistance of the entire circuit is balanced against the combined voltage of the batteries and the power rating of the batteries then it is fine. The problem comes in when people with no understanding of how this stuff works starts trying to build something crazy with nary a thought to safety.

Lets look at an example. In the OP they asked about stacking 4 batteries at 3.7 volts each that would be 14.8 volts. Using a standard 2.4 ohm coil that circuit would try to pull 91.27watts from those batteries. If you put on a 1.8 ohm coil it would try to pull 121.69 watts. Now heaven forbid someone try that with a 0.7 ohm coil....312.91 watts. Yeah that sounds perfectly safe. :blink:

EDIT: wow lots of posts while I was typing this up and doing the math.
 

WarHawk-AVG

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Two batteries in series does increase voltage. It does NOT increase current or power. However the higher voltage ability of dual batteries across the same resistance can try to pull more power than the batteries are rated for (this can be a big problem in unregulated devices). I am not saying this is the only time a batter can fail. I am just saying overloading batteries can increase your chances of being injured.

I am also not saying stacking batteries is inherently bad either. We see it all the time in flashlights, handheld games and all kinds of things. As long as the resistance of the entire circuit is balanced against the combined voltage of the batteries and the power rating of the batteries then it is fine. The problem comes in when people with no understanding of how this stuff works starts trying to build something crazy with nary a thought to safety.

Lets look at an example. In the OP they asked about stacking 4 batteries at 3.7 volts each that would be 14.8 volts. Using a standard 2.4 ohm coil that circuit would try to pull 91.27watts from those batteries. If you put on a 1.8 ohm coil it would try to pull 121.69 watts. Now heaven forbid someone try that with a 0.7 ohm coil....312.91 watts. Yeah that sounds perfectly safe. :blink:

EDIT: wow lots of posts while I was typing this up and doing the math.
quick way to find out what molten NiChrome tastes like!
 
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