Deye BOS‑B Battery Cluster Control Box

Description Product DescriptionThe Deye BOS-B Cluster Control Box is a central battery management component engineered for high-voltage energy storage systems built from multiple Deye BOS-B HV battery modules. It manages the charging and discharging of up to approximately 15 BOS-B modules in series, facilitating scalable high-voltage battery banks with wide DC voltage ranges. The unit features smart communication interfaces (TCP, RS485, CAN) for data exchange with inverters and monitoring platforms, and includes key safety elements such as emergency power-off, fault alarms, over-current/voltage/temperature protections, and cell balancing. An integrated LCD display provides system status, fault codes, and state of charge information, simplifying diagnostics and system oversight. Designed for indoor rack installation, the cluster control box supports modular expansion and helps ensure safe, efficient, and reliable operation of high-voltage storage arrays in renewable energy, backup power, and peak-shaving applications. Technical Specifications Product type: High-Voltage Battery Cluster Control Box / BMU for high-voltage battery stacks Compatible battery modules: Deye BOS-B HV modules (14.3 kWh each) in series Supported series count: Up to approximately 15 modules (forming a high-voltage battery string) Rated system voltage: ~768 V DC (nominal) Rated current: ~168 A DC Communication interfaces: TCP, RS485, CAN for inverter/monitoring communication Integrated display: LCD showing SOC, fault codes, and operational status Protection features: Over-voltage, under-voltage, over-current, over-temperature, cell balancing and fault alarms Emergency power-off interface: Included for safety shutdown Cooling: Smart fan cooling for thermal regulation Enclosure protection: IP20 for indoor rack installation Dimensions (approx.): ~650 × 200 × 800 mm Weight (approx.): ~60 kg Certifications: CE, IEC62619, IEC62040, UN38.3 Warranty: Typically 10 years (manufacturer’s terms) Typical installation: Rack-mount within high-voltage battery cabinet, coordinating BOS-B modules and interfacing with PCS or hybrid inverters