James, Ryan, What has happened is a cascade failure. Remember that a battery is=20 made of several cells. When one of these cells failed it overheated the=20 cells around it. This caused these cells to fail and this overheated=20 surrounding cells and so forth. The lithium in the batteries would react=20 in a violent manner to the oxygen in the air when the cells were=20 breached. Once this type of failure starts there is no way to stop it.=20 This is what happen to a 777 Dreamliner a few years ago. It brought the=20 plane down. Since then Boeing has changed the design of the battery and=20 installed it in a stronger containment system that has an external vent=20 system. GOD Bless, rich! On 8/2/2018 1:01 AM, Ryan O'Connor wrote: > I can't think of any explainable reason why the venting would increase wh= en > the charger was pulled out (the chinese report had a second camera angle > showing he definitely pulled the plug out. it also has sound, an audible > pop is heard first when the dog jumps). However it is surprising how > quickly it escalated considering it was unplugged. > > Ryan > > On Thu, 2 Aug 2018 at 17:40, James Cameron wrote: > >> http://www.abc.net.au/news/2018-08-02/electric-scooter-explodes-while-ch= arging-in-china/10066416 >> >> Battery begins to vent. Operator disconnects charger. Venting >> increases by orders of magnitude. Operator evacuates. Vented gas >> ignites. >> >> What has interested me is; >> >> - only ten seconds before "flames", >> >> - did the venting increase because of charger being turned off? >> >> -- >> James Cameron >> http://quozl.netrek.org/ >> -- >> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .