I wouldn't buy a proprietary ecig again unless you want a ciggy look-a-like. If I were you, I would go with a Bolt, extension sleeve, 2 x 18650 AW batteries, and a charger. One 18650 battery will last an average vaper well over a day. They are bigger but worth it. The batteries are cheap to replace versus what you'll pay for an eGo or KGO.
Another option is the e-power. Comes in both an 18650 or 14650 size. batteries are cheaper to replace.
Both models are sold by a bunch of reputable sellers. Personally, I like the Bolt over the e-power.
Another option is the e-power. Comes in both an 18650 or 14650 size. batteries are cheaper to replace.
Both models are sold by a bunch of reputable sellers. Personally, I like the Bolt over the e-power.