My wife is using a 510 with an atomizer and cartridge right now. She wants to switch to cartomizers so she doesn't have to drop so often when it is inconvenient to do so. What cartomizer would work best with a standard 510 battery? What amount of ohms rating is best for a standard 510 battery? I'm new to all of this and am using an ego mega myself (which I love), but I'm pretty clueless when it comes to voltage and ohms. I know this has probably been asked a thousand times and I appologise for asking again but I can't find a post to answer this question. I know it's got to be here but I want to get this fixed for her and I just can't seem to find it. If anyone could give me a link to the answer or just the answer I would be very grateful. Thank you. Ohh, we are both 2 weeks cigarette free today, thank goodness. These devises have made our lives so much better already.