"A number of electric-vehicle makers have warned owners not to leave the cars charging unattended in certain circumstances, or sitting fully charged in garages."
Crikey. Can't leave them unattended while charging, can't leave them fully charged in a garage, or risk spontaneous combustion. Charge only to 80% if you are going to garage the car. More than 80% charged, leave outside.
That complicates life with an EV.