The BYD Electric Bus (also known as eBus and K9 in China) is a full size, all-electric bus that seats 32 (including driver). The roof of the bus is lined with solar panels, which provide power to the "Fe" battery. With BYD's "Fe" battery, the bus can travel over 155 miles in the city. A three-phase fast charger can bring the battery from empty to 50% in about an hour and from empty to full in about three hours. . The BYD Electric Bus is 12 meters (39 feet) long and weighs about six tons.