Yah that's the plan. A dual 18650. I wish the boxer kit cost less - also the boxer is easy to build but something went wrong with mine and I have to accept I grounded it or something. I may have to buy another chip and unfortunately I don't believe the DNA would fit or even the new Yihi chip so if it goes to my cost for repair I have to decide $80 to fix or abandon and get the linked dna 200 for a touch more. The general comfort of holding the boxer and he fact it has that fabric plastic 3D print. It's lighter than an I stick without batteries. Weighs virtually the chip and a Plastic SpoonIt looks like it it etched then painted, you can feel the outline, it's on the back so out of the way really - don't know if they will make a 18650 battery box for it, it would have to be in the same size half, so would only be a max of 2 batteries which would reduce the overall wattage down to 133 instead of 200.
133 watts is way more than I need. I never use more than 50 as in a mouth to lug inhaler. And on the dna 200 chipset with preheat set I can set it to 25 watts with a preheat if 45. You vape some big lung hitters so power is probably way more important.
I night a used p3. I regret that purchase given I
Could have bought the dna 200 hcigar for almost the same price. I'll be posting the p3 for sale with 6 18350 batteries to try and recoup.
Sorry I didn't multi quote on the double reply.