I don't understand, I feel silly as b4 I got this battery I had a socilites one and now with this vv one I don't get it is there a right and wrong way to set it,
There is no right or wrong. Pick either voltage or wattage, adjust till it's to your preference, vape on! I recommend playing with the Steam-Engine calculator that was linked above. It'll help you understand Ohm's law and the calculations that the device is doing when you set either the voltage or the wattage (or use a different resistance atomizer).
hey thanks for reply, my screen says 1.5 im guessin ohms (I don't know what that meansand ive got it at 5.4v and 11.5w
So.. That sounds a bit odd. To explain it with the specs of your device, your resistance is set at 1.5 ohms. That's a static value, it's only variable if you change the coil/head.
The wattage at 5.4V to a 1.5 ohm would be 19.44W. Meanwhile, the voltage at 11.5W through a 1.5 ohm coil would be ~4.2V. You see the discrepancy, right? Now, I know your device has a 15W limit, so this means that when you set the voltage to 5.4, you're actually pushing the max wattage (15W). It also has a 6V max. This means that if your attached atomizer was a higher resistance, you'd be able to blast it at this 6V max and it'd
actually be outputting 6V. As it is, with a 1.5 ohm coil, the highest your voltage can go is 4.7V. Beyond that and you're hitting the upper limit of the wattage. I realize that might be a little bit confusing, but essentially, you're not doing anything wrong, just keep on vaping with whatever's comfortable to you.
And if it helps at all (or confuses things more), I usually vape a .5 ohm coil at around 60W, which is equivalent to about 5.5V.