Which is the best MOD and why?

[Thulium]

Are you talking about the big or little Chuck? Cuz I don't really want to lug that in puplic lol!

The Chuck doesn't do 5V without further modification.

The Xhaler, however, might well be a great starting point for you. If it turns out that you don't like the size for public display, you can still use it at home, but I went with the Xhaler so that I could try the various voltage settings and see which one I liked best. I haven't tried 7.4V yet, but even at 6V there is a burnt flavor that I dislike and I doubt it gets better at 7.4V but I'll try it with HV attomizers because they should bring it back down into the 5V "sweet spot" vicinity.

A unique feature of the Xhaler is that you can vape at 5V, but then as the voltage drops off as your batteries drain, you can loosen the bottom cap to bump the voltage back up. As far as size goes, the mod itself is 4" (100mm) tall with a 3/4" (20mm) diameter. With an adapter and 510 atty/cart it's 6 1/4" (160mm)

[Scamz]

you might be better off with a super six, beautiful piece on engineering.

[cruisedoc]

Does anyone know if any of these mods have 'protected' batteries?

[Thulium]

Does anyone know if any of these mods have 'protected' batteries?

Most mods have more than one option for which battery you are going to use. The Xhaler, for example, can be purchased with a Tenergy kit with 2x3.0V 750mAH LiFEos protected batteries and AC/DC charger for vaping at 5V or 6V (this is what I'm using). Alternately, you can use a single 17670 3.7V battery, or a CR123 sized 3.7V + a dummy for 3.7V vaping or 2 3.7V CR123 sized 3.7V batteries for 7.4V--which I intend to try along with the HV atomizers that cut about 2 volts bringing it back into the 5V "sweet spot" range.

You can use unprotected batteries for a few extra mAH, but since 750mAH seems to last me all day, it doesn't seem like it would be worth any risk or additional cost.

[WhatAClumsyGirl]

I use protected batteries in my mod's...its a safety thingy ( me being clumsy n all )