ProVari Variable Voltage Mod

[VAPOINSANO]

@rchriste,i use the short batts +have 3 !
its like you are the world's greatest pro/vari spy

on the batt.case(s),
those funky dollar stores are fantastical!
i found several nice sized items there, for all my accs.

now ,
as far as vg/pg,
+all the other subjectivenes's(sp)in the ecig world!!

this is only my nickel+no-refunds....

the provari,
is in a word a god/send for me!

i enjoy both the fog+th @ 2.2-2.8ohm/4v-4.4v!
the mix itself is around 50/50....

have noticed tho ,
my consumption has increased ,
cos of the flux/clearo's more than likely!!


i will never look back,
+Your personal Mileage will always Vary!

vapehardprovarimonkeys



Dr. FrankenVaporologistStein

instant classic

 

[FeistyAlice]

Thanks, that makes sense, great info. I really do like being around 10W. I'm all about "reckless" TH. My current sweet spot is IKV HV306 atty (3.5ohm) at "6V" with AW LiFePO4 batts which is slightly above the 10W range. That setup is the reason why I didn't pursue the VV route until now since I really couldn't imagine anything else being better. However, lately I'm getting into cartos and some 2.0 ohm atties which are too weak for me at 3.7V yet can't handle 6V. I was just trying understand if Provari will have any limitations in providing desired results. It sounds like as long as I stay with or above 2.0 ohm atties/cartos I will get exactly what I'm looking for. Again, thanks a lot for your help.

Thanks for asking the questions and getting great answers. I, too, have a huge stockpile of cartos (and attys - I guess I qualify as a hoarder for the two of us) and have not been able to resist ordering all the new ones coming out. Just ordered my first ProVari a few days ago, black, and really looking forward to playing with all the old and new goodies over the summer.

Alice

 

[Vaporologist]

the 2.2 Ohm atty range is evident in the graph that Provape has for voltages/watts/ resistance and i believe battery Mah ....
You can find it on the Provari site page i believe there's a link to it.

Thanks, I didn't realize there is a chart. I will look for it...

Now I have a question for you... What's going to be the best way to carry your spare battery?

I use the Case Logic Diabetic Travel case from Walgreens: Case Logic.Diabetic Travel Case | Walgreens. It works great for carnying an extra PV, batteries, juice, atties... And it's not to big at all. I think you would like it.

Thanks for asking the questions and getting great answers. I, too, have a huge stockpile of cartos (and attys - I guess I qualify as a hoarder for the two of us) and have not been able to resist ordering all the new ones coming out. Just ordered my first ProVari a few days ago, black, and really looking forward to playing with all the old and new goodies over the summer.

Alice

We are definitely in the same shoes. I can't wait for this little beast to show up!

Dr. FrankenVaporologistStein

instant classic

I do think that VladdyDaddy or Croatian Sensation roll off the tongue much easier...

 

[rchriste]

on the batt.case(s),
those funky dollar stores are fantastical!
i found several nice sized items there, for all my accs.

They have dollar stores there too???? Shouldn't they be Ninety Seven Cent Stores?

How have you been doing Vapoinsano? Last I knew, you were buried in your work. <grin>

I have found some accessory stuff at the dollar stores in the past and you're right it's a great place to look. Right now, I am looking for something just to put that 18490 battery in. Makes me nervous carrying it in my pocket so until I find a more appropriate vessel, I'm using a waterproof matchstick case. It's too long and not terribly elegant but will do until I find something perfect.

If you ever run across that perfect thing to hold an 18490 PM me would you? Between us we should be able to hit all the Dollar stores and all the Ninety Seven Cent stores.

Tootaloo friend.

 

[rchriste]

I use the Case Logic Diabetic Travel case from Walgreens: It works great for carnying an extra PV, batteries, juice, atties... And it's not to big at all. I think you would like it.

That's exactly what my wife is looking for. Thank you for finding that. She carries a bunch of pre-filled tank cartridges and a couple of eGo bats and 2 spare bats for her vv box mod and this link you sent will work perfectly for that. My hat goes off to you Vaporologist.

 

[progg]

Thanks, I didn't realize there is a chart. I will look for it...

xoxo --- http://www.provape.com/v/faq.htm

 

[Vaporologist]

xoxo --- http://www.provape.com/v/faq.htm

That's what I was looking for. Thanks for the link progg!

 

[Vaporologist]

All right guys, I really want to understand this so please bear with me. Which one of the two following setups will result in a longer battery life between charges on a Provari? Please note that both setups provide the same Wattage.

4.9V with 2.2 ohm atty at 10.91 Watts and 2.22 Current or

6.0V with 3.3 ohm atty at 10.91 Watts and 1.82 Current

I don't understand which variables to consider in order to make appropriate calculations. Thanks for your help.

 

[Cee_Jay]

If the boost circuit loss remains the same, the battery life would remain equal since power is identical. Loss is probably not linear, but time still remains a 50/50 proposition.

 

[Zen~]

I don't understand which variables to consider in order to make appropriate calculations. Thanks for your help.

No need to understand... put on an atty, and adjust until it tastes and feels right... the rest is just unimportant numbers.

There is no need to over-complicate this stuff... if you had to calculate horsepower before stepping on the gas in your car, most folks would never leave the driveway!

Think less... vape more!

 

[rchriste]

4.9V with 2.2 ohm atty at 10.91 Watts and 2.22 Current or
6.0V with 3.3 ohm atty at 10.91 Watts and 1.82 Current

Those numbers are correct and follow Ohms Law. They also follow the law of the conservation of energy. The numbers are very literal but in our application IE any VV Mod, they can not be applied literally. Here is a chart that describes the formulas for ohm's law:

You can do the math yourself now by using the formulas on this chart and you'll see that the statements that you quoted above are correct.

(Voltage or V or sometimes E) 4.9 divided by (Resistance or R) 2.2 equals 2.22727 (Current or I) so actually this one would be 2.23 Current but that's picking at nits. Once you have this number for I or current in amps you can use it to get the number for P or power in watts. It all works and is all very literal but it's a simplistic answer that they gave you.

Now for the confusing part. The examples that you provided above imply a 6V battery and a 4.9V battery. We're using neither of those in the ProVari. Instead, the voltage regulator takes our 3.7V battery and by a conversion process draws a higher current from the battery than normal as compared with the example loads/batts you provided. It has to draw a higher current from our battery because of the law of conservation of energy. You can't create or destroy energy but you can convert it. In order to produce the higher voltage than what the battery is rated at, you pay for it by drawing more current. That MORE current is converted into a higher voltage.

Now to further confuse you... <grin> The regulator is not 100 percent efficient at this conversion of energy. Some of the energy used to create that higher voltage is dissipated as heat. It's the electrical equivalent of friction which most of us understand more easily.

Therefore, there is a loss that is not included in your example situations above. That makes the examples for OUR application on a ProVari unintentionally deceptive.

Since you're wanting to figure this out I'm trying to point you in the direction but without seeing the spec sheet on the regulator used in the ProVari, it's impossible for me or anyone other than the folks at ProVari to know all of the variables that play on this situation.

I personally have not tested the duration of a charge at the two examples you gave us but off the top of my head..... neither one would last much longer than the other because the efficiency of a regulator is not a straight line. It will have a higher efficiency at one voltage than another voltage and at one current than another current. You might get 95 percent efficiency at one voltage and 78 percent at another voltage. At the same time, a higher current draw or lower current draw can affect those percentages all at the same time. This is why electronics manufacturers provide data in the form of charts revealing this information about a parts efficiency. With THAT information, you can apply it to your situation and determine what your requirements and results will be.

To find the atty/voltage configuration that will give you the longest battery life, you will need to have access to the efficiency charts of the regulators manufacturer or do your own independent testing. OR find someone that has tested your two example scenarios in real world tests.

I know this was a long answer to your question "which variables to consider in order to make appropriate calculations" but if you got a short answer it would be impossible to understand what's needed to accomplish your goal.

Here's the short answer... without the spec sheets for the regulator in the ProVari, you can not. I typed this out because you seem to genuinely want to know and I want to help you get there.

I hope I provided more help than harm. <giggle>

EDIT: While I was typing that, Zen~ gave the best answer in my opinion "Think less... vape more!" and I agree with Zen~ but... sometimes we are in a quest for knowledge and deserve an answer.

 

[Laszlo]

The dark pink formula for voltage is incorrect. Should read V= SQUARE ROOT (P*R). Similarly the formula for current at the opposite side of wheel is not right.

 

[rchriste]

The dark pink formula for voltage is incorrect. Should read V= SQUARE ROOT (P*R). Similarly the formula for current at the opposite side of wheel is not right.

I didn't even look at it I just grabbed something off the Internet. LOL... I'll try to find a corrected version. I'm searching now.... Thank you.

 

[rchriste]

The dark pink formula for voltage is incorrect. Should read V= SQUARE ROOT (P*R). Similarly the formula for current at the opposite side of wheel is not right.

Thank you for finding that Laszlo. I think I found a more accurate one this time. <grin> That could have really messed him up eh?

 

[Zen~]

While I was typing that, Zen~ gave the best answer in my opinion "Think less... vape more!" and I agree with Zen~ but... sometimes we are in a quest for knowledge and deserve an answer.

Oh, I agree that an answer to the specific question is always in order... but in that respect, sometimes people need to be reminded tha the quest for perfection may lead a person down a path to answers that, while accurate, fail to point out that sometimes the solution is much simpler than the science behind the answer.

My analogy to calculating horsepower is, I feel, on target. People don't need to know the math to get make their car go down the road, and the math is not needed to attain a great vaping experience, and in many ways, the math only serves to confuse. A person will know they have it right when it tastes right... the numbers are of little to no real importance in the final analysis, in my opinion.

 

[rchriste]

Oh, I agree that an answer to the specific question is always in order... but in that respect, sometimes people need to be reminded tha the quest for perfection may lead a person down a path to answers that, while accurate, fail to point out that sometimes the solution is much simpler than the science behind the answer.

My analogy to calculating horsepower is, I feel, on target. People don't need to know the math to get make their car go down the road, and the math is not needed to attain a great vaping experience, and in many ways, the math only serves to confuse. A person will know they have it right when it tastes right... the numbers are of little to no real importance in the final analysis, in my opinion.

That's very true Zen~ but if a person wants to understand horsepower, the answers are out there for them.. No one should be denied the right to learn when they have a desire to learn more about a thing.

I'm with you on the horsepower. I get in the car, I start it and it goes and I don't need to know anything about horsepower to make that happen but if I had a desire to learn about it, I would seek answers and hopefully someone would help me to understand it. I don't see it as a good or bad thing but more an aspiration or desire.

It's all about the quest for knowledge. Sometimes it's there and sometimes it's not. I'm not one to discourage a person who has a desire to learn.

Here is what he said: "All right guys, I really want to understand this so please bear with me."

 

[Zen~]

It's all about the quest for knowledge. Sometimes it's there and sometimes it's not. I'm not one to discourage a person who has a desire to learn.

Very true... as long as we never lose sight of the objective! If a person is looking for a better vape, and they feel they need to get the science behind it in order to achieve that, sometimes it's helpful to remind them: while the answer will be in the science, they don't need to know the science to get the answer!

 

[Vaporologist]

No need to understand... put on an atty, and adjust until it tastes and feels right... the rest is just unimportant numbers.

There is no need to over-complicate this stuff... if you had to calculate horsepower before stepping on the gas in your car, most folks would never leave the driveway!

Think less... vape more!

That's a pretty interesting advice from the "Seeker of Wisdom and Truth", don't you think?

I really don't have any intentions of attempting to complicate things, especially those things in which I lack qualifications to even have a simple conversation about. I just like being able to understand things, even if on a primitive level, rather than to just grip it and rip it through life. But I do appreciate your input.

......Snipped.......

Thank you very much for talking so much time to explain it so thoroughly. Some of this info is above my current level of comprehension due to my lack of knowledge of electronics regarding voltage regulators, boosters... I do understand the basics of the Ohms Law and I have been using it for a long time in fine-tunning my vaping experience. I really wasn't sure if the answer to my question was simple or not or if what I am asking has even been tested. But I certainly hoped that it wouldn't hurt to ask. If, theoretically, one setup would enable the battery to last longer and potentially put less "stress" on the internals of the unit while providing the same experience, it wouldn't be a bad thing to know that upfront, don't you think? I just want to prepare myself in order to get the most from this PV. And I will be happy to share my results once I'm able to do the hands on testing.

I do understand that the Provari will take the fine-tunning to a whole new level and that I will be able to find the sweet spot with many other configurations than previously available with my mechanical MODs.

 

[Vaporologist]

..................
My analogy to calculating horsepower is, I feel, on target. People don't need to know the math to get make their car go down the road, and the math is not needed to attain a great vaping experience, and in many ways, the math only serves to confuse. A person will know they have it right when it tastes right... the numbers are of little to no real importance in the final analysis, in my opinion.

I do understand you analogy but I really don't think it's exactly applicable to my original question. If I was asking questions about the booster or the voltage regulator, and the math behind it, then yes. But my question was more along the lines of how to get the most "miles per gallon" once I leave the driveway, is it better to drive 120 mph at 5000 rpm and get there faster or to drive 55 mps at 2000 rmp and not fight against the high wind resistance... I really didn't think that my question would be perceived as a potential complication. I apologize if I failed to ask it correctly.

 

[rchriste]

If, theoretically, one setup would enable the battery to last longer and potentially put less "stress" on the internals of the unit while providing the same experience, it wouldn't be a bad thing to know that upfront, don't you think? I just want to prepare myself in order to get the most from this PV. And I will be happy to share my results once I'm able to do the hands on testing.

I can appreciate your desire to learn about this stuff. It's how I learned about it. Please don't ever be discouraged from asking questions.

Yes, I think it would be good to know that up front considering the money involved. You might not like my gut feeling about this or my 'uninformed opinion'. I know from reading your posts that you like higher voltages and HR attys. Nothing wrong with that. I also know you've said that you've been trying some SR attys and are interested in that as well. My opinion..... The higher I crank the voltage, the shorter the life of the regulator. That is by no means a fact and I'm pretty sure it's not the answer you are hoping for. That said.... Maybe we can prove me wrong. <grin> The only reason I say it is cause; the work the regulator does is to convert current into a higher voltage. So to me, it follows, that the higher you raise the output above the input, the more work it has to do. Without being able to do the math, that's how my simple mind works it all out.

Depending on what your ultimate goal is. Extending battery life (I don't see that happening much at any configuration) or perfecting the vaping experience, or extending the life of your hardware, you may or may not be successful. <grin> but I'm happy to help you explore the notion and I'm eager to know the results of your personal testing. If for no other reason, just to know. I want mine to last a long time too.

Sorry I grabbed a bum chart off of the Internet without checking it. I fixed it thanks to Laszlo. I guess it doesn't matter anymore cause you already knew all about it.

So Vaporologist... Have we successfully killed some time while you're waiting for your ProVari? That IS still our goal right?