Vehicle recharge time is a concern in the acceptance of EV’s by passenger vehicle customers. Overcoming this challenge will require advances in battery cell, battery pack architecture, and charging technologies to achieve high EV charge rates that permit ‘refueling’ rates similar to ICE vehicles. In support of this effort, this paper describes the development of an experimental battery pack capable of accepting a 1 MW charge. The battery pack architecture is reconfigurable for charging, operating as a nominal 750 V 80P192S pack for a theoretical propulsion mode, but switchable to 40P384S at 1500 V for 1 MW peak charging power and an intermediate mode 40P288S at 1150 V for charging up to 780 kW. Other features of this megawatt capable test platform include MCS Charger use. The test platform was designed and fabricated and integrated into the Warren Battery Labs test facility. This paper outlines the hardware, integration, and test aspects of this megawatt test article.