Configuration for battery powered electric drive load haul dump

A method for symmetrically charging a first electric power storage device and a second electric power storage device of an electric drive work machine comprising:

• mounting a junction box on the electric drive work machine;
• mounting the first electric power storage device on the electric drive work machine;
• mounting the second electric power storage device on the electric drive work machine;
• connecting the first electric power storage device to the junction box with a first electric connection having a first inductance;
• connecting the second electric power storage device to the junction box with a second electric connection having a second inductance that is equal to the first inductance;
• and
• providing power source charging power to the junction box, wherein the junction box, the first electric connection and the second electric connection distribute the power source charging power equally to the first electric power storage device and the second electric power storage device.

An electric drive work machine comprising:

• a body frame;
• a first electric power storage device mounted on the body frame;
• a second electric power storage device mounted on the body frame;
• a junction box mounted on the body frame, operatively connected to the first electric power storage device by a first electric connection having a first inductance, and operatively connected to the second electric power storage device by a second electric connection having a second inductance;
• an inverter operatively connected to the junction box, where the first inductance is equal to the second inductance;
• a traction motor operatively connected to the inverter and having a traction motor output shaft;
• a drivetrain operatively connected to the traction motor output shaft;
• and
• a first charging port operatively connected to the junction box,
• wherein power source charging power transferred from either the inverter or the first charging port to the junction box is distributed equally to the first electric power storage device and the second electric power storage device, and power source output power from transferred from the first electric power storage device and the second electric power storage device through the junction box to the inverter is drawn equally from the first electric power storage device and the second electric power storage device.