I have been vaping for a couple of months now. I have a Halo Triton starter kit with two 650mah batteries. After surfing the web I keep seeing VV batteries and was wondering what exactly the purpose is in using them. I know this might seem like a stupid question but do they enhance the flavor or what? If they really do make that much difference I would give it a try, but I don't want to spend $29.00 for nothing.