Transit agencies around the United States and several other countries are purchasing battery-powered electric buses (BEBs) at increasing rates and these trends are expected to accelerate in the coming years. BEBs are powered by battery packs that run an electric motor to turn the wheels, the same as battery-powered electric cars. The batteries are recharged by plug-in chargers using electricity from the transmission grid. Since they do not use gasoline or diesel, BEBs do not produce tailpipe pollution. Thus, BEBs offer a better option than other bus technologies for reducing our greenhouse gas emissions, as well as other harmful pollutants in urban areas.