I vape mine at 60-85w with a Crown tank at 450-550f in tc mode. I go thru 40-50mls a day probably more on the weekends and battery life has never been an issue. Is it perfect? No, but for the money it's real tough to find a better mod. Do I like my dna version better? Yeah. Is it $80-$100 better? Well, that's up to the individual. I can tell you this. If something happened to my RX I would definitely run out and buy another. The RX is my leave in the car, take to the bar, take fishing, I don't give ...., all day mod.