I been very interested in making a 3.7v but also thinking switching batt's to run it at 5v's. The question that comes to mind would I still need regulators or resistors on the box so when I do put two batteries on there it will be ok to run at 5v's? Then like wise to go back to one 14500 batt for 3.7v. Will be ordering this week on mod parts from Madvapes just wanted to get some feedback before doing so.
