This paper provides an overview of battery technologies and the grid-connected battery projects that integrate wind. It also discusses the deployment of a battery system at Reese Technology Center (RTC) in Texas. The research at RTC involves deploying energy storage devices (i.e. Batteries with grid-tie inverters) for application in wind farms to understand the interaction between wind energy, the grid and the grid loads. The research work focus on the modeling of a battery system and wind turbines when it is connected to the grid, with the aim to understand the optimized energy flow between the battery, the wind farm, and the utility grid, energy management for storage, battery performance, energy dispatch and reliability. With the view of modeling the test bed of the grid-connected battery project at Reese, this paper provides the preliminary simulation results using PSCAD on discharge characteristics of a single cell of a battery at various C rates.