VT200 has been relisted at $179 on gearbest. Not sure what the final price is going to be when they actually arrive, but it is shiny...
Yes, the nominal charge is the way to go for calculations on regulated devices, unless you want to do calculus based on the voltage curve across a discharge cycle. The time you don't use nominal for regulated is if you are figuring out if your batteries are rated for sufficient amp drain. On a regulated device, you want to use the lowest voltage the device will fire at for this, because that's when the most amps will be pulled to reach the wattage selected.
Well, the device isn't a factor when calculating a battery's watt-hours (short of getting into the area under the curve). I'm just saying you can't use the nominal voltage for one and the fully charged and unloaded voltage for another and then compare them.
Interestingly, regarding the calculus, I notice my LG HE4's and Samsung 25R's both clock about 50k joules before hitting low battery but the Samsung's maintain nearly full voltage until about 25k joules whereas the LG's drop fairly linearly as the joules accumulate.
Good info here, thanks!
Nice remark! How did you calculate the joules? is it a dna200 function?
Is there any way to make the up and down buttons adjust the temp by default instead of the wattage in ni200 mode on the DNA 200? This would be similar to the way the evic vt does it. I hate it having to lock then hold down the up anddown buttons just to be able to raise or lower my temp.