New vaper here with a question about ohms and batteries. I just bought a new Smok Pro color with a .15 ohm coil and am vaping at 65 watts. I am getting maybe 4-5 hours of chain vaping out of the batteries. Am I doing something wrong, or is that about the right battery life? Should I get a higher ohm coil if I want longer battery life? If I want another set of high quality, brand name batteries what do you recommend? Many thanks.