Strange thing happening at 7.4v???

[Cobra GT]

I just received a Maxi RS with the 16340 to run it at 7.4v. This SOB kicks like a mule at 7.4v, massive vapor & TH. The only problem I am having is that it will only fire on one type of atty/carto, the Dripmizer Cartomize from gotvapes. I have tried Fluxomizers several attys /cortos with all different omh (1.5, 1.8, 2.0, 2.4, 2.8, 4.5, and 5.0) and it will not work. I can fire them on my Silver Bullet, 18650 Epower, 14650 Epower but they won’t fire on the Maxi RS. Can anyone explain this to me or what is the best set up to run vaping at 7.4v on the Maxi RS, thanks.

 

[mnementh666]

How many ohms are your atty's and/or cartos? On a pair of fresh "3.7" volt batteries, you're looking at 8+ volts. I would think a minimum of 4ohm is necessary for that level of power.
8V at 3ohm is 21 watts, over 2.5 amps.
A standard 3.7v battery running at 4v (reasonably charged) and a Boge 2ohm carto is only 8 watts.

Also, you might try pulling the center pin of the connector on the RS out a hair, maybe it's not contacting the atty/carto?

 

[Cobra GT]

i have tried cartos/attys from 1.5 to 5.0 or 4.5ohm

 

[conan]

When I was doing 7.4 on my maxi I used 5ohm smoktek catomizers from mad vapes.

 

[Murdock Ruml]

Might be the center post not making contact. I know mine was like that. I just removed the center post and replaced it with one the sits alittle higher that I got off an old connector. works on all atty/ cartos.

 

[Cobra GT]

I can pull the 16340's out and put a 18650 and it will vape with everything I've got???????

 

[mwa102464]

Take something that will fit in the center post of your Carto/Atty and bump it out a little bit, thick paper clip, needle anything that fits in that hole, stick in and pry to one side and work it around or stick in the small grove and just pry up a little bit working around the hole pin, pin just needs to come out 1/16 or so, problem solved.

 

[Cobra GT]

It is not the connection, I can pull out the two 16340's out and put in a 18650 and it fires with every atty/carto I have got in my arsenal, it does not make sense. the only thing is that the two 16340 jack the board in there a little sideways or some thing like that. It has to be with the two batteries verses the one. The 16340 are 71.5mm combined and the 18650 are 67.28mm, i have not had a chance to get back into it but i was hoping someone else had had this problem and there was an easy fix for it?

 

[mnementh666]

Fair enough.
Random thought: maybe the 16340's are tripping the protection circuit.
Oooorrr... they're narrower, maybe they're not making connection on the positive end (board/switch side)? In other words, because they are narrower than the 18650, they aren't centering right and lay off to one side enough to miss the positive connection on the board?
Silly question: they aren't flat-top betteries, are they?

Sent from my HTC Vision

 

[Cobra GT]

No they are not but they fire with just Dripomizer only from gotvapes carto only, weird????

 

[Murdock Ruml]

Very weird

 

[mnementh666]

My apologies, I kinda skipped over the working only on one carto. Got stuck on the batteries
*shrug* the center post is the only thing I can think of that might cause that.

Sent from my HTC Vision

 

[JD1]

I = e/r. 8v on a 2 ohm load would be 4 amps. I think it would pop the coil very quickly. Perhaps the RS has overload protection???

 

[Murdock Ruml]

Not unles it is the button itself. But I highly doubt that. There is very basic circuitry in the rs

 

[Cobra GT]

there is no protection very basic

 

[matthawk7]

Seems like all the variables have been eliminated...except the protection circuit in the batts.

 

[dragit]

Id try a different brand or at least set of batterys

 

[kcofohio]

With the 16340s in, have you tried getting a reading with a voltmeter? Taking the posi probe and applying slight downward pressure, see if you lose your reading.

 

[prometheus]

Been tripping the protection circuit on all my devices and could not figure out why till I checked the batts... make sure your not using Ultrafire batts. Protection circuit trips each time I try to go anywhere over 5v with them. TrustFire is what I switched to.