Battery powered locomotive

A locomotive, comprising:

• a power bus operable to provide power to components of the locomotive when the locomotive is operating in a motoring mode or a charging mode;
• a plurality of batteries connected to the power bus, the plurality of batteries operable to provide power to the power bus when the locomotive is operating in the motoring mode, and operable to receive power from the power bus when the locomotive is operating in the charging mode;
• one or more traction motors connected to the power bus, the one or more traction motors operable to receive electrical power from the power bus and to provide traction motor mechanical power to axles of the locomotive to cause movement of the locomotive in the motoring mode;
• and
• a charging source connected to the power bus, the charging source operable to intermittently provide charging power to the power bus to charge the plurality of batteries when the locomotive is operating in the motoring mode,
• wherein a ratio of the traction motor mechanical power to the charging power ranges from about 4:1 to 5:1.

A locomotive, comprising:

• a power bus operable to provide power to components of the locomotive when the locomotive is operating in a motoring mode or a charging mode;
• a plurality of batteries connected to the power bus, the plurality of batteries operable to provide power to the power bus when the locomotive is operating in the motoring mode, and operable to receive power from the power bus when the locomotive is operating in the charging mode;
• one or more traction motors connected to the power bus, the one or more traction motors operable to receive electrical power from the power bus and to provide traction motor mechanical power to axles of the locomotive to cause movement of the locomotive in the motoring mode;
• and
• a charging source disposed within the locomotive and connected to the power bus, the charging source operable to intermittently provide charging power to the power bus to charge the plurality of batteries when the locomotive is operating in the motoring mode and when the locomotive is operating in the charging mode,
• wherein no charging power is provided to the power bus from a power source that is external to the locomotive when the locomotive is operating in the motoring mode or when the locomotive is operating in the charging mode.