Lithium-ion energy storage is being considered as either a prime power source, backup power source, or buffering source in next-generation shipboard power systems. Open circuit potentials as high as 1 kVDC are proposed and while high voltage batteries are emerging in industrial solar applications and even in automobiles, their deployment is limited. There is much to learn about how to assemble batteries with this high a voltage and how to ensure they are safely operated, maintained, and integrated with existing shipboard power system controllers. Battery management systems (BMS) serve as the primary hardware and software level control to monitor, manage, and operate lithium-ion batteries. There are countless BMSs available commercially and tools are needed to study each one in safe and efficient manner. In the work presented here, a battery emulator has been assembled and validated using a power-hardware-in-the-loop (PHIL) system. Using this method, any type of battery can be emulated so long as a validated MATLAB simulation model at the cell level is available. Hardware is being procured to expand the system so that a 264-cell battery can be emulated. The options considered for emulation of the real-time battery model will be discussed along with some experimental results obtained to date.