I'm sure someone will be able to answer this pretty quickly but google wasn't much help to me so here goes. If I leave the tethering option turned on when I am not actively using the tethering, will I be draining battery? I know it goes down pretty quick when you are using it, but if it's not being used and sitting idle will it drain battery? Just want to know if I should be turning it off between uses or if it's unnecessary.