$24.99 at wetvapes for a pulse 80.
I added a $4.99 pack of cotton laces to reach $29.98 and got free shipping.
The 80 can be fw upgraded easily, and if I want to run 21700 it takes about 1 minute with a dremel to slightly open the oval cutout where you can push the battery out.
You mean after you dremmel it the 21700 will fit even though it's longer than an 18650 by roughly 5mm?