BYD B-BOX PREMIUM BCU (HVM/HVS)

Battery Management System (BCU) – BYD B-BOX PREMIUM BCU (HVM/HVS) by BYD

Central control unit for BYD Battery-Box Premium HV systems, enabling intelligent battery management, monitoring and safe operation across HVM and HVS modules.

Applications and use cases

The BYD B-BOX PREMIUM BCU (HVM/HVS) serves as the brain of BYD’s Battery-Box Premium HV family, coordinating multiple HV battery modules within residential, commercial and light industrial energy storage configurations. It is designed to integrate seamlessly with BYD B-Box Premium HV modules (HVM and HVS), providing reliable cell monitoring, balancing, safety control and system-wide communications. When paired with BYD’s IP55-rated housing solution, the BCU supports outdoor-ready installations, delivering a compact yet scalable BMS framework for growing energy storage needs.

• Centralizes control for HVM/HVS battery modules within the BYD B-Box Premium system
• Supports scalable storage configurations from small to larger installations
• Outdoor-ready operation when used with IP55-rated housing
• Plug-and-play connectivity simplifies wiring and commissioning

Key electrical and performance parameters

The BYD B-BOX PREMIUM BCU provides essential battery-management functions, including cell monitoring and balancing, to ensure safe and efficient operation of HV modules in the BYD B-Box Premium platform. It is designed for compatibility with the B-Box Premium architecture, enabling coordinated charging and discharging sequences, protective interlocks and reliable communication across the system. The unit emphasizes quick deployment through plug-and-play design and supports integration with the Base enclosure for streamlined installation.

• Integrated cell monitoring and balancing for HVM/HVS modules
• Designed to work within the BYD Battery-Box Premium architecture
• Plug-and-play wiring and connectors for rapid installation
• Supports safety interlocks and multi-module communications

Mechanical design, installation and reliability

The BCU is housed in a robust, corrosion-resistant steel enclosure designed for durable deployment in energy storage environments. When combined with BYD’s BCU+Base housing, the system achieves protective IP55-rated exterior protection and offers flexible mounting options, including freestanding or wall-mounted configurations. The enclosure features a dedicated base frame and plug-in connectors to simplify assembly, with detailed installation guidance provided in the attached technical PDF.

• Powder-coated steel enclosure for long-term outdoor use
• IP55-rated exterior when mounted in the BYD housing solution
• Freestanding or wall-mount installation options
• Base frame and plug-in connectors enable quick, reliable assembly
• Compatible with HV modules within the BYD B-Box Premium system

For detailed dimensions, mounting guidelines and installation steps, refer to the attached BYD B-BOX PREMIUM BCU specification PDF included with the product files.