In this paper, we present a comprehensive study on the development of a hardware-in-the-loop laboratory testbed for battery management systems (BMS). The testbed incorporates a battery model implemented in Matlab Simulink and utilizes the real-time system Scalexio from dSPACE for simulation. Additionally, we employ a programmable logic controller (PLC) to function as a BMS within the simulation environment. Experimental setup involves conducting a single cycle of battery discharge and a subsequent cycle of charging, enabling us to evaluate the performance and effectiveness of the BMS under realistic operating conditions. Through this approach, we aim to gain insights into the battery's behavior, monitor its state of charge, and assess the BMS's ability to optimize battery performance. We collected data during the simulation runs and generated graphs to visualize the battery's voltage, current, and state of charge profiles throughout the discharge and charge cycles. These graphs provide valuable information about the battery's performance characteristics and the effectiveness of the employed BMS. The analysis of the obtained results and graph observations allows us to draw several conclusions. Firstly, the battery model represents the behavior of a real battery, as evidenced by the close match between the simulated and expected voltage and current waveforms. Secondly, the BMS implemented using the PLC successfully manages the battery's state of charge, ensuring efficient utilization and preventing overcharging or deep discharge. Overall, our testbed demonstrates the effectiveness of utilizing hardware-in-the-loop simulation techniques for evaluating and refining battery management systems. The integration of the battery model, real-time simulation platform, and PLC-based BMS enables a realistic and controlled environment for comprehensive testing and optimization of BMS strategies.