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Lavatube Question

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bobsyeruncle

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  • Sep 5, 2010
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    in a cave, eh?
    A 16340 battery is about an inch and a half. The difference in size between the "stealth" and the Maxi would not be nearly as dramatic as you might think. A mid-sized model would be pointless strictly from an aesthetic point of view.

    If your Lava Tube is currently crowding out your carrying case, a mini might give you a little wiggle room, but it would hardly be stealth.

    To really go "stealth", you're better off considering a model with literally no electronics in the battery tube. Like a 3.7 volt GLV mini or a regular RoughStack.
     

    zoiDman

    My -0^10 = Nothing at All*
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    Apr 16, 2010
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    A 16340 battery is about an inch and a half. The difference in size between the "stealth" and the Maxi would not be nearly as dramatic as you might think. A mid-sized model would be pointless strictly from an aesthetic point of view.

    If your Lava Tube is currently crowding out your carrying case, a mini might give you a little wiggle room, but it would hardly be stealth.

    To really go "stealth", you're better off considering a model with literally no electronics in the battery tube. Like a 3.7 volt GLV mini or a regular RoughStack.

    I think the Mini-ThunderVolt uses a 18350 battery which is 35mm/1.38" long.

    Perhaps stealth is more of a marketing hype term but the long and short or it is its shorter than a 18650 version.

    My next PV is going to be a VVPV with a Digital Readout. Once you have been down the VV road it would be hard to get a fixed voltage PV.
     

    grizewald

    Full Member
    Oct 11, 2011
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    Stockholm, Sweden
    Here's a quick question for you guys. Tonight I had to recharge my battery for the first time. Thing is though, I was under the impression that with these batteries, once the Lavatube detects that the battery isn't giving off enough juice for the set voltage, it shuts off indicating that you need to recharge. That wasn't really the case. I was hardly getting any vapor so I checked the power level (7 presses) and it said 3.5. From what I read, it's supposed to shut off around 3.3 (I vape at around 4.0-4.2). Once I put the second battery in, things went back to normal.

    Is it possible this happened because I didn't charge the batteries out of the box? I just took one out and stuck it in there. I have no idea. If anyone knows, throw your 2 cents in.

    My first battery ran out on me this morning. I was vaping a SmokTech tank with DC carto at 3.7 volts and noticed a distinct
    drop-off in vapour. When I checked the battery power level it said 3.3. This is the off-load voltage, so I guess that's about as
    low as they go if you are pulling a couple of amps from them before they just lay down and die.

    The LT didn't turn off by itself though. Does anyone know what voltage it's supposed to cut off at? And if that voltage is
    the on or off load voltage?
     

    MrLyle

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    Oct 30, 2011
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    It plays fine with dual coil cartos. I've got one on mine right now.

    No, I mean it fires just fine and it's a good vape, but did you measure the voltage? According to the video it'll only fire at 3.3-3.7 no matter what you set the Lavatube to.

    Which is cool and all, I mean the 2.5amps safety is there for a reason, but when the thing fires up at 3.3-3.7v, what's the point of using those cartos on a Lavatube? You might as well use an ego battery or any other smaller 3.7v battery. It'll give you the exact same result. The whole point of a variable voltage device is to, ya know, vary the voltage, hehe.
     

    grizewald

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    Oct 11, 2011
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    Not true! And that's not what Grimm is really saying either. The LT limits the output currrent
    to 2.5 amps. With a 1.5 ohm carto or atomizer you won't be able to exceed 3.7 volts.

    There's nothing wrong here!

    If Grimm actually managed to put 6 volts into his DC carto he'd be drawing 4 amps from
    the battery!!
     
    Last edited:

    MrLyle

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    Oct 30, 2011
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    Not true! And that's not what Grimm is really saying either. The LT limits the output currrent
    to 2.5 amps. With a 1.5 ohm carto or atomizer you won't be able to exceed 3.7 volts.

    There's nothing wrong here!

    You misunderstand me. I didn't mean to say that there was anything wrong with it. It works as it should. I like the fact that it limits the output to 2.5amps, it's a fantastic safety feature.

    All I was saying is that if you bought a variable voltage device, I assume you want to use it with equipment that would actually allow you to vary the voltage. If you're using a carto that's essentially stuck at 3.7 volts no matter what you set the LT to, then what's the point of using it with a variable voltage device? You're getting exactly the same performance as you would on any 3.7 volt battery.

    If you're using the Lavatube, wouldn't you want to use a carto or atty where increasing and decreasing the voltage actually has an effect on the vaping experience?
     
    Last edited:

    grizewald

    Full Member
    Oct 11, 2011
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    Stockholm, Sweden
    Totally agree that it is best to use high resistance stuff if you want to use the whole range, but there is
    a benefit to the LavaTube even with LR devices. Even though you can only run at 3.7V, you get a stable
    3.7 volts all the way through the battery's charge.

    I notice clearly on my Prodigy that the battery voltage under load drops off gradually until the battery
    needs recharging. You just don't get this effect on the LT. It's like a super big eGo battery!
     

    Mindfield

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    Aug 28, 2010
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    No, I mean it fires just fine and it's a good vape, but did you measure the voltage? According to the video it'll only fire at 3.3-3.7 no matter what you set the Lavatube to.

    Which is cool and all, I mean the 2.5amps safety is there for a reason, but when the thing fires up at 3.3-3.7v, what's the point of using those cartos on a Lavatube? You might as well use an ego battery or any other smaller 3.7v battery. It'll give you the exact same result. The whole point of a variable voltage device is to, ya know, vary the voltage, hehe.

    This is pretty typical on pretty well all single-battery VV mods to one degree or another though, and some multi-volt stacked batt devices as well. The amp limit is kind of necessary unless a high amp (5A+) switch is installed and you exclusively use high drain batteries (like at least 2C, preferably more). There are some stacked mods that can handle pushing DCs to 6+ volts, and a few homebrew VVs (like the Army Tank) that can handle the amp draw too, but for the most part using dual coils at high voltage is a major battery drain that most commercial or semi-commercial mods aren't built to handle.

    You could stick a couple of 3V LiFePOs in a Silver Bullet or Omega or something and run a DCC at 6V no problem if you wanted, but ProVari, Darwin, Lava Tube, Buzz, Infinity, and most others just aren't built to handle it.
     

    Mindfield

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