Power supply management apparatus and method thereof

An apparatus comprising:

• an energy storage device;
• a power interface configured to receive electrical energy from an external power source;
• a DC bus coupled to the energy storage device and the power interface;
• a traction drive system coupleable to the DC bus, the traction drive system configured to receive electrical energy provided from the energy storage device for driving movement of the apparatus;
• a power takeoff (PTO) drive system coupleable to the DC bus, the PTO drive system configured to receive electrical energy selectively provided from the energy storage device and the power interface for driving movement of at least one implement in association with the PTO drive system;
• a traction switch coupled between the DC bus and the traction drive system, the traction switch configured to:
• open to disable the traction drive system when the apparatus is operating in a charging mode;
• and
• close to allow electrical energy provided from the energy storage device to be transferred to the traction drive system when the apparatus is operating in a traction driving mode and
• a PTO switch coupled between the DC bus and the PTO drive system, the PTO switch configured to:
• open to disable the PTO drive system when the apparatus is operating in the charging mode;
• and
• close to allow electrical energy provided from the energy storage device to be transferred to the PTO drive system when the apparatus is operating in a PTO driving mode.