Ive been criticized before here over a .20 build. So I joined a coil builder, cloud chaser, and mech fb groups. They all ohm low. I run a .08 all day long and get huge clouds and never have a problem with my battery getting hot. These guys r coil builders and run as low as. .06. Non of them have issues nor has their battery ever blew up. Some wont even bother with a build higher then a .10. And these guys r competition vapors. I think they wud know if there was a problem. Im sure Ill get some slack for this post but my .08 build rocks. Its 28×4/38 n90 5 wraps on a 3.5. Clouds for days. The 30 T can handle it. I wudnt do it with any other battery. But the 30T is a beast.