I am using a Provari but I need a mod with more power for the Kanger Subtank Mini.
I have a ProVari P3 and run my SubTank mini with 1.2 ohm coil at 20W, and it's just right for that tank. Some juices I have to turn down to 17-18W, but many are good at 20W. You might not need much more power on the SubTank. The 1.2 ohm coil says 25W maximum, so not much more than a P3 can deliver. I use my SXmini with an Atlantis tank with 5ml upgrade at 35W typically.
I am confused on the Battery for this mod. I have AW 18650: 2200 mAh - Button Tops. Can these be used in this mod? Or, what is the preferred Battery, and I am using a Pila IBC Charger exclusively.
Since you mentioned you have the AW 2200mAH battery, you must have the new version with the black ends (not a solid red battery), in which case it's rated at 20A and can be used in the SXmini. The older AW 2000mAH is solid red, only rated for 10A, and would not be safe in the SXmini.
For the record, I'm using the SXmini USB port to charge. I never take the battery out. Some people have reported issues with the USB port, but I think it's a rare case, and if you're gentle with it, there won't be a problem. So far, no problem with mine, and I use it every day.