content: A quick google search makes your assertion less plausible, there is an obvious track record of these units catching fire.  http://abc13.com/technology/hoverboard-fires-spark-concerns-over-products-safety/1116298/ http://www.dailymail.co.uk/video/news/video-1233435/Shocking-moment-hoverboard-catches-fire-explodes.html http://losangeles.cbslocal.com/2016/01/09/another-reported-fire-involving-hoverboard-destroys-rialto-womans-car/