Passthru VS. Batts

[Covale]

Does anyone else notice if there should be a different puffing technique when switching between batteries and pass through?

I am finding that I have to puff longer and harder using a battery than with a PT. I also notice that I burn through a cart almost twice as fast using a PT.

Comments? Suggestions? Maybe I am just doing it wrong.

 

[SimpleSins]

You may be using a 5V passthrough as opposed to a generic 510 one. The higher voltages blow through juice a lot faster than the standard 3.7 ecigs.

 

[Covale]

Very good to know. I was reading a post by someone who was asking if anyone has run across a variable voltage USB adapter, and the thread was derailed by modders and box builders.

On the other hand, does anyone know if there is a variable voltage PT for KR808D-1?

 

[316lvm]

@Covale -

Ditto on what SimpleSins said. You'll also find that techniques for drawing vapor different with different attys and mods.

When I first started vaping with a 901 - absolutely hated the battery routine. The passthrough provides a 5 volt experience - the higher volt heats the liquid faster and provides for easier draw and tons of vapor.

If you ever get to a mod stage, nirvana. Happy vaping!

 

[CaptJay]

I haven't heard of a PT that does VV as of yet - Im not even sure how that would work but if there's one out there I haven't run across it yet.
Echoing the above - I found differences between my 3.7v PT and 5v PT - you can tell the difference as one usually has an inline battery (3.7) and one does not (5v). You should also make that your PT isn't an auto as those require the suction of a vaccum to operate imo (yuk get a manual lol).

 

[Covale]

Actually, I did an experiment today at work. Perhaps someone can confirm or explain my findings:

I tried my PT using several different sources.

Directly connected to my computer produced HUGE clouds of vapor and blew through an entire carto in about an hour and a half. (unknown amperage)

Connected to an Apple brand USB Wall Adapter (rated at 1A) produced moderately heavy clouds of vapor, not as much as the direct computer connection, and a carto lasted almost 3 hours of regular puffing.

Connected to a USB hub (unknown amperage) produced light clouds and gave up post haste due to complete lack of fulfillment.

Connected to an off brand USB wall adapter (rated at .2A) produced no vapor at all.

I don't think the voltage was different being that they were all standard USB ports that I use everyday charging or running various electronics. If what I suspect is true, voltage is less important than amperage when it comes to vaping. Meaning that if this is indeed true a 3.7v 500mA setup could produce more vapor than a 5v running at 250mA!

Any thoughts? I am finding this topic fascinating!

 

[silk1127]

I believe Passthoughs have more power then the battery on the e-cig so that would explain you going through carts twice as fast, other than that I have noticed a stronger vape from the Passthrough.

 

[Mattco]

I believe PT's have a higher voltage output than a normal battery. That would mean that your atty will get warmer faster and produce more vapor quicker so your draw would not need to be as long as on a battery. So you're not doing anything wrong. It's just the nature of the beast.

 

[SnowDragon]

Hey Covale...welcome!

I done luvs my P/T no doubt. You'll read a lot about Mods and it's just for this reason. A standard 3.7v is great for the first hour or so, then it is suffer from battery fade. You will also find some juice taste better at 5v on your P/T then it does at 3.7v on a batt and vice versa. Most Mods run at higher voltages up to 6v, some like the Buzz are voltage adjustable (gotta get me one of those) where you can dial in your "sweet spot".

Check out the Mod forums, big hits, big flavor, big vapor!

Good luck!

 

[Covale]

But what about the amperage differences I think I discovered?

 

[Vanisle]

There is quite a bit of difference that I have noticed. If I connect my P/T to the USB port on my keyboard I don't get near as much vapor as I do if I connect it directly to the USB port on the back of the computer or a USB hub. The USB ports on the keyboard are only USB1 while the ones on the comp and the USB hub are USB2.

I can not say for certain but, I am pretty sure that USB2 ports do put out slightly more voltage than a USB1 port.

 

[Mattco]

Yes there is a difference to the amperage. More volts = more amps (using the same atty or cartomizer)...which means faster and hotter heat. I=E/R (Ohms Law).
I=Amps
E=Volts
R=Resistance (which is the ohm rating of the atty)

So a 3.7v battery with a 2.2 atty = 1.68 amps
A 4.2v PT with a 2.2 atty = 1.90 amps

(Hopefully my brain is working right...somebody please correct me if I'm off)

Watts equals volts X amps. And more wattage means more heat.

Hope this helps.

 

[Covale]

Yes, I believe it does. One more question, a bit more basic this time:

what is the recommended amperage range for a PT KR808D-1?

I am guessing that it is somewhere between 1A and 1.75A depending on personal preference of balance between vapor output and carto life.

I am also curious about how much this all affects carto life expectancy.

 

[SnowDragon]

Mattco your math is spot on! Covale KR808D-1 P/T is 5v and is definitely not adjustable.

Prefilled Cartos my friend are great way to try new flavors, but I can tell you right now buying a couple packs of Cool Carto blanks and a couple bottles of your favorite is juice is the only way to fly. I can pretty guarantee that once you go to Cool Blanks and Juice, the only time you get pre-fills is if they don't have a sampler bottle of a new juice you want to try.

Hammering down some Wow Peppermint on a KR8 P/T right now and luvin it.

What type of p/v do you have...KR808D-1 as well?

Mattco, make a Variable voltage software program for P/T's and revolutionize vaping! That would be awesome.

 

[Mattco]

I'm using an 808 cartomizer at this very minute that reads 2.8ohms. And both my battery and PT are reading around 4 volts. (Battery is freshly charged). So it's about 1.4 amps...and works beautifully. I can't say exactly what the recommended amperage is, but I believe that you're close with 1A and 1.75A...1A might be a little low, depending on the ohm...I might say 1.25A...although a more experienced person might have more to say with better clarity.

 

[Mattco]

Oh, I'm using a 510 sit and go with an adapter (the battery is also a 510). But, yeah, loving the 808 carto's. The 510 carto's I got read 3.2 ohm's, which is to high for even 4 volts (for me anyway...won't--give--me--vapor--), but works really well for my wife's 5v set-up (don't know the actual voltage she gets).

Oooh...variable voltage software with a locking touch screen to adjust the voltage...

 

[Java_Az]

I think maybe one thing that might be causing it is that a 3.7 battery will drop in voltage under load to 3.4 to 3.2. With a passthru hooked to a computer your not going to see that voltage drop like you do in a battery. Your going to pretty much stay at 3.7 volts. Unless your computer was made in the 1990's or you got so much stuff running off it it cant cope with the load. Could also be it is a 5volt passthru which someone else pointed out earlier in the thread for sure will run hotter and produce more vapor in turn use more juice then normal.

 

[Eldoen]

A couple of other items.

The amp rating is max amount of amps that Hub or device will provide.

So that is the reason you saw different results on different USB Pass throughs.

Fun stuff

 

[Covale]

I'm using a generic chrome PT I picked up from LiteCig for a pretty good price. I just bought several packs of stainless steel blanks from StrictlyEJuice, and I have been getting juice from Halo. That was recommended to me by the guy who got me hooked. I was also told that you get much better quality cartos and juice piecing them together rather than relying on who loaded the cartos.

Just picked up 3 more 30ml bottles from Halo.. 30% off until Tuesday!!! I imagine they are going to run out of inventory!

 

[Covale]

...but I can tell you right now buying a couple packs of Cool Carto blanks and a couple bottles of your favorite is juice...

What are these "Cool Carto" blanks you speak of? Can you provide a link?

Mattco, make a Variable voltage software program for P/T's and revolutionize vaping! That would be awesome.

Is this possible? A computer program to control the output voltage and/or amperage on a USB port? This opens a great many possibilities! One could add a progress bar that tracks the number of puffs and equates it to analog cigs with such a program as well!