Question about wattage on the evic......

[fiddles]

I have 1.8 ohm atty & my evic will go up to 11 watts at 4.5 volts

[robby]

May 14, 2013 20:15:29 GMT Roscopecotrain said:

Ok so on vivi nova i am getting a constant 2.4ohms now and max watts is 10.4.

My mini nova is showing 2.8ohms and max watts is 8.9.

My vision v3 is showing 2.3ohms and max watts is 10.8

Once you go above 2.3 ish volts, it cant give you enough volts, I think I am right in saying the Evic can only give you 5V

Anything under 2.3 ohms it can cope with for your maximun 11 watts

[rincewind]

May 14, 2013 20:16:38 GMT robby said:

May 14, 2013 20:13:41 GMT rincewind said:

Just checked with a 1.5 and it goes to 11w

That will be 4V at 2.7 amps

Ah the good old v=I/R triangle eh   

Shame no one told Joyetech as they work it out at 4.06v

[rincewind]

May 14, 2013 20:19:43 GMT robby said:

May 14, 2013 20:15:29 GMT Roscopecotrain said:

Ok so on vivi nova i am getting a constant 2.4ohms now and max watts is 10.4.

My mini nova is showing 2.8ohms and max watts is 8.9.

My vision v3 is showing 2.3ohms and max watts is 10.8

Once you go above 2.3 ish volts, it cant give you enough volts, I think I am right in saying the Evic can only give you 5V

Anything under 2.3 ohms it can cope with for your maximun 11 watts

Correct

[robby]

May 14, 2013 20:21:36 GMT rincewind said:

May 14, 2013 20:16:38 GMT robby said:

That will be 4V at 2.7 amps

Ah the good old v=I/R triangle eh   

Shame no one told Joyetech as they work it out at 4.06v

www.bowdenshobbycircuits.info/ohmslaw.htm

A very handy link, input any 2 values to work out the other 2

[Roscopecotrain]

May 14, 2013 20:19:43 GMT robby said:

May 14, 2013 20:15:29 GMT Roscopecotrain said:

Ok so on vivi nova i am getting a constant 2.4ohms now and max watts is 10.4.

My mini nova is showing 2.8ohms and max watts is 8.9.

My vision v3 is showing 2.3ohms and max watts is 10.8

Once you go above 2.3 ish volts, it cant give you enough volts, I think I am right in saying the Evic can only give you 5V

Anything under 2.3 ohms it can cope with for your maximun 11 watts

In lamens terms robby? lol

[robby]

I just use the link mate, my head hurts if I think to hard this time of the night
Maybe your atty connector could do with a clean or possibly the Nova head isnt quite screwed down.

[Toondog]

I posted this in tips and tricks last week. Roscopecotrain

You may or may not already know this but I thought I'd post any way, a complaint people often have with the evic is the fact it sets a max watts according to your attys resistance and you may well want to vape higher than that. here is a way around that, I'm using MVR 1.3.
Without your evic attached create an MVR W profile (or two or three if you want) in the Vapour set section of the MVR software on your mac or pc (you might make one to vape at 11watts over 10 seconds for example) and export them (save them).
Now when you plug your evic in it will reset all three MVRW profiles to whatever watts it allows for your atty, so you need to import the saved profiles and they will be just as you just saved them, click modify and they will be saved to your evic.
Now when you want to vape higher than the watts your evic is allowing you, on a high res atty for example, just go to vapour set/ switch/ and select the MVRW profile you want to vape at, if that was 11watts (or indeed 10 or what have you) you'll vape at that wattage no matter what your attys resistance.
Hope that made sense!!!

That should do the trick as a work around for any resistance atty. in essence you could set the three MVR W profiles to 9, 10 and 11 straight through covering all eventualities.

Chris.

[Toondog]

Hmm my above post may or may not be b@llocks, for example on a 1.9 ohm coil the evic allows 11watts which it says is 4.6 volts however when you switch to vv it allows you to go up higher to 5v which is erm well more watts than eleven! With the tip I posted above is the evic capable of giving the wattage it shows when using the MVRW set at 10watts say on a 2.8 ohm atty because of the five volts mullarky?!? Interesting.
Chris.

[Toondog]

5v on a 1.9 ohm coil is apparently 13.1 watts and the evic appears to allow you to do this. Thoughts?

[robby]

May 14, 2013 22:04:53 GMT Toondog said:

5v on a 1.9 ohm coil is apparently 13.1 watts and the evic appears to allow you to do this. Thoughts?

Gonna give it a go if I can find something to stick on the  end of my Evic

[robby]

Not sure what is going on with it to be honest, but with a 1.3 atty on at 5V it should be giving me 19 watts, which it clearly isnt. I have just taken the atty of my SVD which is set at 10.5 watts and seems to be just about the same vape performance.

I think they have a fair way to go with the software as it isnt displaying what is happening correctly with the voltage. It seems you can set it to 5V with just about anything you can stick on top of the EVIC which cant be correct. It doesnt seem to limit what you can set it to, but in effect, it must be a lower voltage at the atty.

It`s looking like the only thing you can really trust to be accurate is to use the device on VW.

[Roscopecotrain]

Great Toondog that helps.

Still seems strange though that i can get the volts up.

Sent from my Galaxy Note 2

[robby]

I thought I would see if I could figure this out today but wasnt sure if it would show on my home made tankometer, but it does.

With the Variable Voltage set to 3V with a 1.4 ohm ish atty on the
other end of the tankometer, I am reading 2.9V on the meter. Fair enough

Now with the VV set to 5V I am getting a reading of 3.3V, which equates to a Variable Wattage setting of 11W

So once the EVIC decides that your settings are going to make more than 11 WATTS maximum, it limits the voltage within the device, but doesn`t transfer that information to the display which just keeps counting up. It says it is throwing out 5V but it is actually only 3.3V  Roscopecotrain Toondog

[Roscopecotrain]

robby you are a gem for working that out. So even though i could go up to 5v it was not actually giving me 5 volts but when you use watts it does the same but shoes you on the screen what the highest watts are.

Lesson learned here is to make sure i do low ohm coils on my next batch.

Sent from my Galaxy Note 2