RX200s too high voltage or?

[Mathias]

Hello. I have just installed new coils in my Steamcrave Titan. I put two of the premade geekvape "alien" coils in it and i used the null post so it doubled the ohms to approx 0.5 which is fine, i guess. I have found that the wattage to get a good vape for me with this build is 90 watts, but..... My RX200s, at 90 watts, says: about 7 volts and about 13 amps.
And i really just want to make sure i am not pushing my batteries to the limit. I'm using 3x Samsung 25R 2500 mAh.
Hope you can answer my question.

 

[SteveS45]

What batteries?

 

[djsvapour]

90 watts with 3 batteries is fine. I don't know what a 'null post' is, although I can guess... but if your coil is 0.5ohms then you are doing just great.

If you have 3 batteries doing 7 volts that is an easy Sunday morning deal.

 

[Mathias]

Ah okay, phew! I also heard that the volts shown on the screen is not the exact volts/amps being drawn from the batteries?
And the null post is just a post you can put in it that doubles the ohms. It kind of turns the 2 coils into 1 coil

 

[djsvapour]

Ah okay, phew! I also heard that the volts shown on the screen is not the exact volts/amps being drawn from the batteries?

That might be true, of course... but you are in the very safe zone i.m.o.

 

[Mathias]

Great! Thank you

 

[Mathias]

What batteries?

Samsung - 25R 18650, 2500 mAh 3.7V

 

[IMFire3605]

Hello. I have just installed new coils in my Steamcrave Titan. I put two of the premade geekvape "alien" coils in it and i used the null post so it doubled the ohms to approx 0.5 which is fine, i guess. I have found that the wattage to get a good vape for me with this build is 90 watts, but..... My RX200s, at 90 watts, says: about 7 volts and about 13 amps.
And i really just want to make sure i am not pushing my batteries to the limit. I'm using 3x Samsung 25R 2500 mAh.
Hope you can answer my question.

The RX200 is a triple battery, series battery connection configuration, which multiplies voltage X number of batteries, but the same mah and CDR of a single battery, so available voltage is

4.2v fresh charge highest X 3 = 12.6v available voltage to 3.2v lowest charge X 3 = 9.6v available voltage, CDR 20amps at 2500mah runtime.

The amps being displayed is the amps from the control board to the atomizer coils themselves, not the batteries themselves like with a mechanical. To figure out the amps from the batteries to the control board draw, the formula is as so

Watts Set/Lowest Available Voltage/90% Control Board Efficiency = Maximum amps

In your application it is as so

90watts Set/9.6v Lowest Voltage/90% (or 0.9) = 10.4167 amps maximum you would be asking of the batteries, so you are very much within the safety of your batteries max CDR, actually only about 50% Max CDR which is really suggested.

 

[Mathias]

That is awesome, so i could go higher watts. It won’t let me go above 155 watts though as the volts reach over 9.
Thank you!

 

[suprtrkr]

Hi and welcome. You are correct the volts from the battery are not the same as the volts applied to the board. The battery side always works at battery voltage as this is what is available. The board in the mod take whatever voltage the batteries hand it (within its limit of operations, of course) and converts that voltage into a different volts value to make your set watts in consideration of the value of your coil. This is normal: it's how VW mods work.