Abstract: A power distribution system supplies electrical power to various parts of a vehicle. The system includes a power distribution board and ancillary expansion boards that regulate power distribution in the system. With this system, power can be routed to multiple high-current and low-current devices positioned in a variety of ways within the vehicle. The system includes high-current and low-current terminals that can be positioned in a variety of ways in the housing. The number of ancillary expansion boards in the system can be adjusted to supply power to a desired amount of low-current, ancillary devices on the vehicle. Further, one or more high-current terminals are configured to connect to a charger that sends power to the system.