I built a dual coil that come out to .13 ohms was wondering what the highest wattage I could Vape it at its on a regulated mod and the atty is the Bonza rda would really appreciate the help
max wattage depends how much current your batteries will give to your mod to operate.
And you can go to maximum assuming you wanna burn your lips!!!
Having low ohm coils and high wattage will not give you any rank in score board.
Try find your sweet spot and enjoy your clouds mate
My dual 26g SS fused claptons are also .13, I personally enjoy them best from 80 to 100, but as said there are other factors, mod, batteries, personal preference and even juice choice.