evidence: Experts say EV battery explosions remain rare as authorities extinguish two fires in one week [...] "The challenge is when these electric vehicles do light on fire, they can create quite an unsafe area because these battery fires can even create an explosion risk and they can emit very toxic gases and chemicals," Dr Priestley said. [...] An EV that has been involved in a collision or fire should be treated with caution, as damaged batteries may ignite days or weeks after the incident.