Keep um coming getting great feedback here I like all the ideas and already number one im seeing is the wattage issue that's gonna have to play a part in all mods
The intent of the kick was to take a 18650 mod and convert it to a VV. If you're starting from scratch, there are better ways to do it.
See this post:
http://www.e-cigarette-forum.com/forum/modding-forum/191607-easy-okr-t-vv-mod.html#post3302009
And then see this one, which expands on it to give you the ability to have dead battery cutout.
http://www.e-cigarette-forum.com/forum/battery-mods/193434-low-voltage-cut-out.html#post3350687
I've built an ugly but working one of them that could be the guts of any mod that can give it 7.4v stacked (any two 3.7 batts). Could do the zener modification with more than one path if you wanted a state where it gives you warning for low. Mine just stops when the batteries drop to about .1 volt below the lower bound, but we could have a second circuit that makes a blinky LED when it gets to some point around +.5v.
Here's mine.
Yeah, that particular one is a step down regulator. There are step ups, which use a single cell and is what's in the kick. My main point being that it seems kind of silly to build a mod for a kick... if you have the foresight to know you want vv, just build it in.
I agree! I just finished my first mod (http://www.e-cigarette-forum.com/forum/modding-forum/260860-no-laughing-my-skills.html) and since I don't have the skills, tools, ability, knowledge, etc. I went ahead and made it Kick compatible. But ideally any new commercial mod would rely on someone else's drop in guts! Build it in (though replaceable isn't a bad idea!) and build it FOR the mod.
IMO here's what the electronics should have:
Adjustable wattage (and voltage if not hugely impactful to the size or price)
Multi-function display of some sort (small lcd would be ideal, think half the size of a cheapo calculator display)
Battery charge indicator (ideally as part of the lcd display)
Charging status (also part of the display)
Easily adjustable, and settible, voltage/wattage
USB connection (for charging? or just for passthru) Personally this doesn't matter to me, but I know there's lots of people who would want USB.
All necessary protection circuits including some sort of master "off" setting for pocketability
Ideally it would be able to work off 1 battery (to keep size down) but maybe has the option to run 2 (for increased battery life). Oh and the batteries HAVE to be user replaceable (even if it's a somewhat proprietory battery, users should be able to purchase extras and swap them out).