Snowwolf 200w: voltage reading during firing?

[Mrez]

Not exactly sure what going on here and I suspect it has something to do with the batteries being in series. I have a .26 ohm Atty set up on the mod. I have the wattage set to 80 watts. When I trigger the fire button, the voltage display jumps from 0 to 1.55 (it skips around a bit) and the wattage display drops to 9.4w. Compared to plugging in the same value on steam calc, that wattage seems very low. Am I missing something? Also how would I go about calculating the actual amp pull from my batteries?

 

[suprtrkr]

Not exactly sure what going on here and I suspect it has something to do with the batteries being in series. I have a .26 ohm Atty set up on the mod. I have the wattage set to 80 watts. When I trigger the fire button, the voltage display jumps from 0 to 1.55 (it skips around a bit) and the wattage display drops to 9.4w. Compared to plugging in the same value on steam calc, that wattage seems very low. Am I missing something? Also how would I go about calculating the actual amp pull from my batteries?

Is it in temp control mode? Nickel 200 wire in the atty? If so the watts you set shouldn't matter, it goes by temping the wire. As foo how you calculate, try the Ohms Law Calculator. Enter any two variables and read off the other two. If the readings for V and W are correct, you're pulling 6+ amps from the batteries at that setting.

EDIT: Sorry, forgot to link the calculator; fixed now.

 

[Mrez]

Is it in temp control mode? Nickel 200 wire in the atty? If so the watts you set shouldn't matter, it goes by temping the wire. As foo how you calculate, try the Ohms Law Calculator. Enter any two variables and read off the other two. If the readings for V and W are correct, you're pulling 6+ amps from the batteries at that setting.

EDIT: Sorry, forgot to link the calculator; fixed now.

I'm in power mode. Steam engine tells me at .26 ohms and 65 watts I should be getting 4.11 volts and 15.81 amps. The display on pressing the fire button shows 1.59 volts and drops the wattage to 9. That's what's confusing me.

 

[Completely Average]

What kind of coil? Kanthal or Nickel?

You can't choose which mode you're in manually, and the behavior you are describing suggests it's in temperature control mode.

 

[05redsrt4]

When you press the fire button does the temp display go away? That's if your on kanthal build.

 

[nilly]

If you'r using kanthal, hold the firebutton for longer than 3 seconds to jump to wattage mode, after 3 seconds the chip determains that the resistance don't change and will switch itself over to wattage mode.

If you'r using nickel, turn that temp up

Easy peasy.

 

[Mrez]

Strictly using Kanthal/nichrome wire. Intrestingly the low Voltage shown during fire seems to only happen with my clapton builds...and then it went back to expected levels of 4+ V. Not sure what was going on, but I was reasonably certain I wasnt in temp mode.