Do not buy these disposable electronic cigarettes, the anti-vape organizations will have a nice argument to denigrate ALL electronic cigarettes, saying that it is a disaster for the ecology!

Watch this analysis by an electronics engineer (who is not anti-vape)!
The part that interests us, on the disposable electronic cigarette, begins halfway through the video, at 8:28
The video is in French, but you can put subtitles in your language.