my Vamo doesn't make the rattlesnake noise anymore??

[themyst]

Hmm, after I twisted the board straight into place (the buttons and board were crooked) my Vamo doesn't make that rattlesnake noise anymore. It seems to vape just fine, but does anyone have a Vamo that doesn't make that noise when it fires?

It also has a firing delay now.

 

[nahoku]

The noise really depends on the delivery device. Cartos will be noisy. I never hear any noise with any of my rba's or drippers.

 

[Oktyabr]

I've never heard any "rattlesnake" sound with my vamo or any other device I've used (most VV devices use some form of PWM). I get "snap, crackle and pop" on a nice coil but nothing pulsing 30+ a second like some others describe. I DID read a post from a Vamo user that said theirs didn't "rattlesnake" as much in "no1" PWM mode? Did you accidentally reset it to no1?

 

[SirSteve]

I heard it once a few months ago, then I bought the Kanger Protank on put it on the VAMO, sounds like rattlesnake infestation. Oddly the Protand doesn't make the rattlesnake noise on my Sig Zmax, it does hiss though. Not sure what really causes that, if you are actually inhaling you don't hear it, rather amusing.

 

[rver]

I've had my 2 vamo's for 2 months now and no rattlesnake noise using only vivi nova's on them.

 

[themyst]

Hmm, think I figured out my own problem. The Panasonic 18650s can't seem to crank enough juice for higher wattages, which causes any wattage over say 6 watts to not work properly (on a 3 ohm resistance). The voltage to reach 6 watts on 3 ohm resistance is around 4.5V. Once I went to dual IMR 18350s, no problems.

Maybe those grey Panasonic 18650s are partially protected from high drain? Not sure.

 

[PONKAW]

Maybe those grey Panasonic 18650s are partially protected from high drain? Not sure.

I only use the vamo in the long mode. I noticed pretty quickly that it seems to perform best with stacked 350s. It still works well with the 650s... but the vape quality is better and much longer with IMR 18350s.
I'm sure its much more efficient for the voltage regulator to step down the power as opposed to boosting it.

 

[Oktyabr]

Hmm, think I figured out my own problem. The Panasonic 18650s can't seem to crank enough juice for higher wattages, which causes any wattage over say 6 watts to not work properly (on a 3 ohm resistance). The voltage to reach 6 watts on 3 ohm resistance is around 4.5V. Once I went to dual IMR 18350s, no problems.

Maybe those grey Panasonic 18650s are partially protected from high drain? Not sure.

Uhmmm... NO.

The CGR18650CH is rated for 10 amps and seems to be one of the few "high drain" batteries actually capable of it (unless you have a bad one!) I run them in both my Vamo and my mech and a lack of wattage is not on it's list of failings in either device (0.9 ohm coil with a fresh battery at 4.2v is 4.67 amps and almost 20 watts... calculated before any voltage drop).

 

[Light Seeker]

Hmm, think I figured out my own problem. The Panasonic 18650s can't seem to crank enough juice for higher wattages, which causes any wattage over say 6 watts to not work properly (on a 3 ohm resistance). The voltage to reach 6 watts on 3 ohm resistance is around 4.5V. Once I went to dual IMR 18350s, no problems.

Maybe those grey Panasonic 18650s are partially protected from high drain? Not sure.

Interesting observation. Never heard the rattlesnake on Vivas or Protanks, using single 350 or 650 IMR batteries.

 

[Oktyabr]

Interesting observation. Never heard the rattlesnake on Vivas or Protanks, using single 350 or 650 IMR batteries.

I think Phil Busardo was the first to coin the phrase "rattlesnake rattle". If my memory serves me correctly he first used it *while* showing the PWM of a device (Vamo?) on a *meter*, not holding it up to a microphone so it could be *distinctly* heard. I think a lot of users, after hearing various descriptions of this "rattle" automatically associate it with the Vamo in particular, even though most VV/VW devices use some form of PWM, and jump over the fence to join those who think it's a bad thing, an irritating *audible* effect, and perhaps even those who think it somehow produces an inferior vape. By coining that phrase, and it's wildfire like growth in use, he probably inadvertently did more to increase the sales of other mods, Provari's and mechanical mods especially, than anything else in recent times!

That said I've *never* heard it, regardless of tank/atty... not with an RBA, not with a clearo, not with a vivi, not with a dripper... not on my Vamo, my friends Vamo, my other friend's Zmax... and as a life long audiophile I think I am pretty good at "listening" (try and tell the difference between two similarly priced and designed phonograph needles some time!)

I think most people that bring this up are quite often hearing the snap, crackle and pop of a coil that is working well and some how reading into it a perceivable "rattle", something that happens at over 30 times a second. You know what a 30hz signal sounds like out of a loud speaker? It's not a rattle!

 

[ThunderPumpkin]

I get this sound on my Vamo from some clearos. I don't get it at all from Evods, but I get it quite loudly from Vivi Novas, CE5s and eGo-C/T tanks. The bottom-coil design of the Evod probably just means that the sound is there but it doesn't get out as well.

I will note that I had some CE5s that initially made the sound, but then stopped doing it. Turns out the wicks had huge, baked-on lumps of juice residue where they met the filament. This also made for delayed vapor production (the turds had to be heated up first, in order to heat the juice). Perhaps this is happening to you.

 

[themyst]

Uhmmm... NO.

The CGR18650CH is rated for 10 amps and seems to be one of the few "high drain" batteries actually capable of it (unless you have a bad one!) I run them in both my Vamo and my mech and a lack of wattage is not on it's list of failings in either device (0.9 ohm coil with a fresh battery at 4.2v is 4.67 amps and almost 20 watts... calculated before any voltage drop).

I got four of em. The eFest 18350 IMRs work great, these CGR18650CH do not. They are grey with some see-thru label rated for 2250mah.

 

[themyst]

Hmm, just tried the VAMO in short mode with a single 18350, getting the same weak performance and delayed hit as the single 18650. Dual 18350s work perfectly. Perhaps the positive battery terminal got pushed upwards making a bad contact?

If it matters, using the same 2.8ohm resistance Vivi Novas with the same battery.

 

[themyst]

I get this sound on my Vamo from some clearos. I don't get it at all from Evods, but I get it quite loudly from Vivi Novas, CE5s and eGo-C/T tanks. The bottom-coil design of the Evod probably just means that the sound is there but it doesn't get out as well.

I will note that I had some CE5s that initially made the sound, but then stopped doing it. Turns out the wicks had huge, baked-on lumps of juice residue where they met the filament. This also made for delayed vapor production (the turds had to be heated up first, in order to heat the juice). Perhaps this is happening to you.

Just checked, the coil itself is still spotless.

 

[Light Seeker]

Hmm, just tried the VAMO in short mode with a single 18350, getting the same weak performance and delayed hit as the single 18650. Dual 18350s work perfectly. Perhaps the positive battery terminal got pushed upwards making a bad contact?

Starting to sound like that. Those panasonic 650's are some of the best as Oktyabr noted, used by many. The height of your stacked 350s is probably greater than a single 650, giving a better connection.

 

[BdMoore85]

Hmm, after I twisted the board straight into place (the buttons and board were crooked) my Vamo doesn't make that rattlesnake noise anymore. It seems to vape just fine, but does anyone have a Vamo that doesn't make that noise when it fires?

It also has a firing delay now.

I have a vamo v2 that I've had for about 2-3 weeks now...mine makes the rattlesnake noise and the only time it has stopped is when 1 of my cartos got jacked up, so,I put a new carto in my tank and it started making the rattlesnake noise and vaping like a champ again!

 

[Kemosabe]

I think Phil Busardo was the first to coin the phrase "rattlesnake rattle". If my memory serves me correctly he first used it *while* showing the PWM of a device (Vamo?) on a *meter*, not holding it up to a microphone so it could be *distinctly* heard. I think a lot of users, after hearing various descriptions of this "rattle" automatically associate it with the Vamo in particular, even though most VV/VW devices use some form of PWM, and jump over the fence to join those who think it's a bad thing, an irritating *audible* effect, and perhaps even those who think it somehow produces an inferior vape. By coining that phrase, and it's wildfire like growth in use, he probably inadvertently did more to increase the sales of other mods, Provari's and mechanical mods especially, than anything else in recent times!

That said I've *never* heard it, regardless of tank/atty... not with an RBA, not with a clearo, not with a vivi, not with a dripper... not on my Vamo, my friends Vamo, my other friend's Zmax... and as a life long audiophile I think I am pretty good at "listening" (try and tell the difference between two similarly priced and designed phonograph needles some time!)

I think most people that bring this up are quite often hearing the snap, crackle and pop of a coil that is working well and some how reading into it a perceivable "rattle", something that happens at over 30 times a second. You know what a 30hz signal sounds like out of a loud speaker? It's not a rattle!

i notice that you dont mention trying the vamo with a carto or carto tank when listening for the rattlesnake (i call it the helicopter). your ears will surely pick up the sound. its impossible not to hear it, and its clearly different than the snap-crackle-pop that a carto typically makes.

 

[justinstar77]

My Vamo makes the rattlesnake noise with everything I put on it. I only use stacked efest 18350's. Its more noticeable with the evod's, mt3's, and the protank I don't hear it as much on cartos or my mini octapus rda unless I pull of the cap off and it does sound different than the snap crackle pop of juice vaping up. It performs better than my ego-t and my cat seems to like the noise so I don't really care. Makes it simple knowing it's working.

 

[hvac999]

I just filled my carto tank and I get an intermittent rattle snake noise but it works fine. I have it on 10w with a 1.8ohm carto and it is staying together.

 

[e-pipeman]

I heard it once a few months ago, then I bought the Kanger Protank on put it on the VAMO, sounds like rattlesnake infestation. Oddly the Protand doesn't make the rattlesnake noise on my Sig Zmax, it does hiss though. Not sure what really causes that, if you are actually inhaling you don't hear it, rather amusing.

Yes. This happens with the Protank on my Vamo as well. Odd but harmless imho.