The running test was examined using DC 600V and VVVF inverter type railcar with lithium ion battery. 90kWh and 15kWh of Mn type lithium ion battery was used. The relation between running time and voltage, current and integrating watt was investigated in detail. The railcar was run when the lithium ion battery module was discharged between 660V and 480V. On one charge, it was also found from the running test that the railcar could run for about 40km and the mileage improved 16%. The running test was also carried out using VVVF inverter type railcar to investigate charge performance due to regenerative energy. Lithium ion battery module was quickly charged for three times at more than 5C by regenerative braking system. It was estimated that the effect of energy saving was about 28% by the charge of lithium ion battery from regenerative energy.
