Battery voltage changing?

[Ohio Points]

Just started using DIY SS coils with temp control.
Does it make sense that the voltage of the battery changes when using the SS or PWR setting?
PWR: 3.71 v/ .69 ohm / 20w
becomes:
SS: avg of 2.19 v/68 ohm/530F

 

[bombastinator]

Yes. That’s the way temp control works. It uses special metals such as SS that change their resistance slightly according to how hot they are and uses that to figure out the temperature of the coil.

 

[zoiDman]

Just started using DIY SS coils with temp control.
Does it make sense that the voltage of the battery changes when using the SS or PWR setting?
PWR: 3.71 v/ .69 ohm / 20w
becomes:
SS: avg of 2.19 v/68 ohm/530F

The numbers for SS seem a Little Strange to me. Where are you Getting/Reading them from?

What Wattage is TC set to?
Do you have a Pre-Heat setting by any chance?
Do you Normally set the Max Temperature so High in TC?

 

[greek mule]

Just started using DIY SS coils with temp control.
Does it make sense that the voltage of the battery changes when using the SS or PWR setting?
PWR: 3.71 v/ .69 ohm / 20w
becomes:
SS: avg of 2.19 v/68 ohm/530F

At power mode the required voltage depends at selected wattage(the power you want), and the value of coil.
The cpu uses Ohm's Law and calculate what voltage is needed to to reach the power you demand.
At TC mode,CPU is monitoring the change of resistance and drop voltage in order to step down the power that hit your coil so it makes sure you will not exceed the selected temperature.

 

[DaveP]

Just started using DIY SS coils with temp control.
Does it make sense that the voltage of the battery changes when using the SS or PWR setting?
PWR: 3.71 v/ .69 ohm / 20w
becomes:
SS: avg of 2.19 v/68 ohm/530F

In power mode voltage is static and based on the wattage you have selected and resistance of the coil when you fire the atty. The chip logic picks the voltage needed to produce a stable wattage based on the cold resistance of the atomizer coil. It doesn't take into account the changing resistance as the coil heats up. In power mode you may sense additional warmth on a long hit as the coil reaches full temperature for the wattage selected.

TC mode monitors the changing resistance of the atty coil to maintain the temperature you have selected. As the coil changes resistance slightly, the voltage fed to the coil will also change to keep the temperature stable.