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I had these damn things for several weeks, until I found a clue that there is a correlation between nicotine use and persistent genital warts / cervical cancer. Only very recently have researchers been studying nicotine in the absence of tobacco smoke and in this case evidence point to the...

E = I * R 5 = I * 3 I = 5 / 3 = 1.7 amps Now the question is what happens if your power supply isn't rated for enough amps. That depends on the power supply. You might damage it, it might shut down, or it might just let its output voltage sag to whatever it is able to deliver...

Right, so, who is actually selling 5V PTs? People seem to be totally mistaken about what they're actually using.

The Joye unit sold by cignot appears to have a battery pack inline. If that is the case then it is probably NOT a 5V PT. Can anyone clarify?

Looks good. Would be nice if it had a plug for charging/PT but I guess that is harder to do with stacked li-ion.

You're vaping 100mg straight up? That'll get your motor running.

Why: because PG puts me to sleep (but I vape a lot). How: eGo with cartomizer, syringe fill Halo torque56 is my fav but I like some of their menthols too. They are 100% PG. I haven't tried thinning but I might give it a shot some time. VG is thick so it doesn't wick into the carts as...

If PG agrees with you, IMHO consider yourself lucky and roll with it. I haven't found a VG tobacco that I really like. Alien's 555 is acceptable. Do not like the sweet/chocolatey flavor of Boba's. I haven't found anything terribly offensive about the VG juices, they just don't taste as good or...

Halo Torque 56 Halo Cool Mist or any menthol blend Tasty Vapor Mojito Tasty Vapor Kretek I realize you can't do these well without the PG but I'd love to find something close. Any suggestions? I'll try mixing myself if necessary.

Not sure if you are still watching this thread but I was also thinking of leveraging the temperature coefficient in this way and this sounds like a really clever solution. Do you still have the schematic? - it is no longer showing. I would expect this to have some advantage in that it should...

Lots of ways to do it, a microcontroller and mosfet is all you need. This is as simple as it gets really, all you're doing is heating up a resistor. There is not likely to be a savings in battery life - you still need to deliver the right amount of power to light it, but by controlling the...

My idea is to use a single large cell with an off-the-shelf USB charge controller IC that can pass through a lot of current from the cell. Then use a boost switcher to take that up to say 9VDC, and then use PWM to drive a programmable output voltage. Then you could give it an extra "turbo" pulse...

Switched - that is a good point. Many (most?) PTs are actually full-time battery chargers and the power to the atty actually comes from the battery. That a good thing to do in terms of protecting the PC's USB port, instead of possibly drawing more power than it's rated for. Other PTs are just a...

Just compare on the same port with and without the extension. If you can't tell a difference then don't sweat it.

Some people have side effects with one or the other. PG causes itchiness and/or lethargy in some people, while VG can act as a laxative.

True, but that loss is actually from the internal impedance of the battery - which is not regulated and is being pushed beyond spec in most e-cigs. It's similar in principle to a long cable, except that the resistance is in the source. With a reasonable cable length, the PT has an advantage...

Alternatively (without cutting cables) you could measure the resistance of the atty and compare to the resistance of the cable. Multiply the cable resistance times two (for each direction of flow). The proportion of these resistances tells you how much is lost in the cable vs delivered to the...

You're measuring wrong - that is the "open circuit" voltage which is absolutely meaningless here. What you need to know is how much voltage is lost _under load_, i.e when the PT is not only connected but actually operating. To measure that you need to expose the conductors at the PT end and...

Yes I was very thirsty on PG... drank way more water than usual. Maybe still not enough!

Thanks! Hmm I don't see any 100% VG, even in the doublers, from TV. I'm trying Boba's right now - not bad but a little too chocolatey for me. I will try their others. Any suggestions along the lines of a Halo VG clone? Vapor Bomb's "red bomb" is OK in VG. That's my "daily vape" for now...