Abstract: A system for charging at least one battery may include a power and data communication bus including a plurality of AC and DC power lines and data communication lines, and a plurality of modular ports coupled thereto. Charging power modules and an inverter module(s) may be coupled to respective modular ports of the power and data communication bus. A central controller may be configured to communicate with the charging power modules and the inverter module(s) through the data communication lines, identify the charging power modules and the inverter module(s) coupled to the modular ports, along with respective functions and power ratings associated therewith, and selectively control the charging power modules and the inverter module(s) based upon their identified functions and power ratings to charge the at least one battery via the DC power lines and provide AC power back to the AC source.