So I'm going to get a little techie geek on y'all tonight. I was watching a recent video hyping a 150 watt use of a new sub ohm tank on the Sigelei 150. It sounds like a mind blowing sort of wattage for a tank already, especially one that was reading in at .5 ohms. If we look a little behind the scenes though what we find is that it was an unintentional deception. The first limiting factor is that a Sigelei 150, on brand new fresh batteries can output a maximum of 7.5 volts due to no 'boost' on the chip and an overhead power loss for the chip's processing. This means at absolute maximum it can put off 112.5 watts according to Ohms Law at .5 ohms exactly under unrealistically perfect circumstances. Now the Sigelei in the video shows 60% charge so if we are generous we can call this 3.8v on each battery giving us a series voltage max of 7.6v available at rest on the batteries in combo. We can expect a minimum of .2 volts per battery (again being very generous) drop when under load, and on top of that, the chip has a minimum overhead energy cost of 8% or more. So 7.6v-.4v =7.2v-8% loss leaving us around 6.6v bringing us down to 87 watts at exactly .5 ohms. Finally most current .5 ohm atomizers have a tendency to run in the middle of the .5 range, and the Sigelei only has 1 digit of reading for the resistance, so a more likely .54 ohm range on the coil would bring the wattage down around 81 watts.
Now 80 watts is a hell of a lot on a prebuilt setup and nothing to scoff at however it is a far cry from a 150 watt burn. I'm still betting this is a heck of a tank, but once voltage drop is added into the battery sag, if tested with an in line meter it's a good chance that the total wattage was even lower.To claim these high wattages we need to test both the real minimum 2 digit (calibrated) resistance and output voltage on the device since they do not tell you what they output, only what you set them to.
Now I don't think anyone in the video meant to deceive the public on the performance, however this speaks to the ridiculous complexity involved in the electrical and vaping world that we are dealing with and how inaccurate things can actually be. Newer chipsets are starting to show real information instead of just settings, giving us a more realistic picture, but for now it's a good idea to take many 'too good to be true' claims as just that.
Ok geeking done, have a good night all!
https://www.facebook.com/video.php?v=425280547641583
Now 80 watts is a hell of a lot on a prebuilt setup and nothing to scoff at however it is a far cry from a 150 watt burn. I'm still betting this is a heck of a tank, but once voltage drop is added into the battery sag, if tested with an in line meter it's a good chance that the total wattage was even lower.To claim these high wattages we need to test both the real minimum 2 digit (calibrated) resistance and output voltage on the device since they do not tell you what they output, only what you set them to.
Now I don't think anyone in the video meant to deceive the public on the performance, however this speaks to the ridiculous complexity involved in the electrical and vaping world that we are dealing with and how inaccurate things can actually be. Newer chipsets are starting to show real information instead of just settings, giving us a more realistic picture, but for now it's a good idea to take many 'too good to be true' claims as just that.
Ok geeking done, have a good night all!
https://www.facebook.com/video.php?v=425280547641583
