So I have recently received my g150 kit. I am newish to sub ohm but I am having trouble understanding why they put a baby M2 .15 ohm coil in with the kit. It says it is for direct 3.7v yet I have searched through the menu and do not see a direct 3.7v setting. Does anyone know the purpose of this or better yet how to use it without causing damage to myself or my new kit?