This gets to the heart of some confusion I have; if it uses only one 3.7 volt battery, how does it put out 5 volts?There's 2 batteries but it only uses one at a time. You just rotate them. They're 1050mah, so there's plenty of time to charge one while you use the other. When they get old you might want another set.
Amen to that. Sarah, if you get the e-Power 14650, I'm cutting you out of my will. And this is coming from a guy who just bought five of them for my friends this past weekend. (They're reimbursing me; not rich yet).Honestly, I think this is the one she should settle on. Nobody has any complaints about these as far as their vape goes. They're simple, economical and pretty durable. She can use the money she saves on replacing kGos to buy a Provari later on.