Today my nautilus mini stopped working and I am getting constant dry hits no matter how many times I change the coil. It seems that the nautilus mini does not go well with thick 100vg juice so my only option is to buy a decent one. Not to mention I don't want to keep changing coils every time as coils cost money. I need an atomizer that can efficiently wick high VG juice. I currently have an iStick 20w battery I reckon I would have to get a new battery also?