Well for my next battery I want to make my own VV mod. I am looking at buying the LM2596, a switch, box, batteries and a 510 connector. I figured I would go simple since I only know very basic electronics yet want to make something nice, maybe even with a display.
My question would be first, how do you change the voltage on the LM2596? Also open to other suggestions for my parts list.

My question would be first, how do you change the voltage on the LM2596? Also open to other suggestions for my parts list.
