VIDEO: Lithium-ion batteries are presenting new challenges for fighters, especially on roadways. Think of an electric car. If one gets in a wreck and the batteries explode, firefighters are faced with a very different type of fire to fight. The Phoenix Fire Department is educating its crews on fighting lithium-ion battery fires. "It's literally like candles on a birthday cake at parties, those trick ones," Phoenix Fire Department Spokesman Rob McDade explained. "You blow it out and it reignites and that's new for us."