The battery portion o the e-cigarette is disconnectit an chairged, as here throu a USB-pouered chairger.
electronic cigarette or e-cigarette is a haundheld electronic device that vaporises a flavoured liquid, which the uiser inhales. [note 1] Uisin e-cigarettes is eften cried  vapin. The fluid in the e-cigarette, cried  e-liquid, is uisually made o  nicotine, propylene glycol, glycerine, an flavourins.   
↑ Electronic cigarettes are variously kent as e-cigarettes, e-cigs, EC,  electronic nicotine delivery seestems ( ENDS) or electronic non-nicotine delivery seestem ( ENNDS),  personal vaporizer, or PV. 
↑ Sullum, Jacob (27 Aug 2015), "Wacky British Idea: Why Not Tell The Truth About E-Cigarettes?", Forbes
↑ 2.0 2.1 2.2 WHO (2014), Electronic nicotine delivery systems: FCTC/COP/6/10 Rev.1 (PDF), Moscow: World Health Organization, Conference of the Parties to the WHO Framework Convention on Tobacco Control, Sixth session, 13–18 October 2014
↑ "Cambridge study raises fears over e-cigarette adverts for children", Cambridge News, 18 Jan 2016
↑ Lam on behalf of the Asian-Pacific Society of Respirology; et al. (2014), "Electronic cigarettes: 'Vaping' has unproven benefits and potential harm", Respirology, 19: 945–947, doi: 10.1111/resp.12374
↑ Millar et al. (20 Mar 2016), "Consumer Product Safety Commission Gains New Authority Over Some Nicotine-Containing E-Liquid Packages", The National Law Review
↑ McRobbie, Hayden; Bullen, Chris; Hartmann-Boyce, Jamie; Hajek, Peter; McRobbie, Hayden (2014). "Electronic cigarettes for smoking cessation and reduction". The Cochrane Library. 12: CD010216. doi: 10.1002/14651858.CD010216.pub2. PMID 25515689.
↑ Brandon, T.H.; Goniewicz, M.L.; Hanna, N.H.; Hatsukami, D.K.; Herbst, R.S.; Hobin, J.A.; Ostroff, J.S.; Shields, P.G.; Toll, B.A.; Tyne, C.A.; Viswanath, K.; Warren, G.W. (2015). "Electronic Nicotine Delivery Systems: A Policy Statement from the American Association for Cancer Research and the American Society of Clinical Oncology" (PDF). Clinical Cancer Research. 21: 514–525. doi: 10.1158/1078-0432.CCR-14-2544. ISSN 1078-0432. PMID 25573384.