This control unit provides efficient management and monitoring of battery modules in energy storage systems. It is designed to work with lithium iron phosphate (LiFePO4) batteries, supporting a voltage of 48 V. The unit is equipped with an integrated battery management system (BMS) that monitors the state of charge, temperature and other key parameters, providing protection against overload, short circuit and overcharge. Due to its modular design, the PYTES HV48100 BMU can be easily integrated into a variety of power systems, increasing their reliability and safety, and allows for efficient scaling of the system depending on the user's energy needs.