DEYE BOS-B 257.23kWh High-Voltage Battery Kit
Download Energy Storage System Datasheet Download Energy Storage System Manual Download Certificate of Conformity The DEYE BOS-B Pro-A3 kit is a modular high-voltage energy storage solution designed for commercial and industrial energy systems. The configuration includes 16 LiFePO4 modules connected in series, providing a total nominal energy of 257.23kWh and 231.51kWh of usable energy, calculated at the recommended 90% depth of discharge. Each BOS-B-Pack16-A3 module provides a nominal energy of 16.08kWh, a capacity of 314Ah and a nominal voltage of 51.2V. The complete system reaches a nominal voltage of 819.2V and supports a maximum charging or discharging current of 180A. The system uses the BOS-B-PDU-2-A high-voltage control unit to manage the battery modules, communicate with the PCS and monitor the state of charge and system alarms. Thermal management is provided by intelligent fan cooling. The BOS-B Pro-A3 is designed for integration into DEYE C&I ESS solutions incorporating PCS, MPPT and STS equipment. The final configuration must be determined according to the system power, on-grid or off-grid operating mode and photovoltaic circuit voltage. Key Features LiFePO4 technology High-voltage system for commercial and industrial applications 16 modules connected in series 257.23kWh total nominal energy 231.51kWh usable energy 819.2V nominal voltage 180A maximum charging and discharging current TCP, RS485 and CAN communication CAN communication with the BMS State-of-charge and error-code display High-voltage presence indicator System alarm indicator Intelligent fan cooling Rack-mounted installation IP20 protection rating 10-year warranty Benefits High Storage Capacity The usable energy of 231.51kWh provides substantial energy storage for later consumption, peak-load reduction or maintaining the operation of compatible loads. Modular Construction The system uses 16 individual battery modules, simplifying transportation, installation, monitoring and technical servicing. Integrated Management The BOS-B-PDU-2-A unit manages the high-voltage connections, communication with compatible equipment and transmission of battery information. Long Service Life The manufacturer specifies more than 6,000 cycles under the following conditions: 25±2°C, charging and discharging at 0.5C and a minimum end-of-life remaining capacity of 70%. Recommended Applications Commercial and industrial photovoltaic systems Industrial buildings and manufacturing facilities Warehouses and logistics centres Shopping centres and office buildings Peak-load reduction and peak shaving Time-of-use energy optimisation Energy export limitation Power systems for critical loads Microgrids and commercial and industrial energy solutions Kit Contents 16 × BOS-B-Pack16-A3 battery modules, 16.08kWh each 1 × BOS-B-PDU-2-A high-voltage control unit Rack structures required for the BOS-B Pro-A3 configuration The PCS, MPPT module, STS module and other equipment presented as part of the C&I ESS solution are not considered included in this kit unless they are listed separately in the commercial offer. The BOS-B-AP-A cable package is presented by the manufacturer as an accessory for integration with the 125kW PCS. Its inclusion must be confirmed separately. General Information Manufacturer DEYE System Model BOS-B Pro-A3 System Type Modular high-voltage battery system Battery Technology LiFePO4 Application Commercial and industrial energy storage – C&I ESS BOS-B Pro-A3 System Parameters Number of Modules Connected in Series 16 modules Nominal System Energy 257.23kWh Usable System Energy 231.51kWh Nominal System Voltage 819.2V Maximum Charging/Discharging Current 180A Recommended Depth of Discharge 90% BOS-B-Pack16-A3 Battery Module Nominal Energy per Module 16.08kWh Nominal Voltage per Module 51.2V Nominal Capacity per Module 314Ah Maximum Charging/Discharging Current 180A Module Dimensions – W × D × H 795.9 × 526 × 274.2mm Approximate Weight per Module 126kg Module Protection Rating IP20 Charging Temperature 0°C to +55°C Discharging Temperature -20°C to +55°C Storage Temperature 0°C to +35°C BOS-B-PDU-2-A High-Voltage Control Unit Operating Voltage Range 200–1000V DC Rated Charging/Discharging Current 180A Operating Temperature -20°C to +60°C Protection Rating IP20 Auxiliary AC Power Supply 220V AC ±10% / 2A Dimensions – W × D × H 788.6 × 526 × 167.2mm Weight 32kg Operation and Communication Thermal Management Intelligent fan cooling Display State of charge and error codes Communication Ports TCP / RS485 / CAN BMS Communication CAN Permissible Humidity 5–85% Maximum Altitude ≤3000m System Protection Rating IP20 Installation Location Rack-mounted in a suitable indoor environment Dimensions, Service Life and Certifications System Dimensions – W × H × D 2150 × 1305 × 800mm Approximate System Weight 2240kg Cycle Life ≥6000 cycles at 25±2°C, 0.5C/0.5C and 70% EOL capacity Warranty 10 years Referenced Certifications CE / IEC 62619 / IEC 62040 / UN 38.3 Compatibility and Integration For a configuration with 16 battery modules, the manufacturer specifies the following options: 16 modules for on-grid or off-grid PCS applications 16 modules in a PCS + MPPT configuration when the MPPT module’s open-circuit voltage does not exceed 800V For other configurations, the datasheet allows between 5 and 16 modules to be connected in series, with different requirements for on-grid operation, off-grid operation and MPPT module integration. Compatibility depends on the PCS model, system architecture, MPPT and STS equipment and firmware version. The complete configuration should be checked and designed before purchase. Important Information This product is a high-voltage system and must not be treated as a standalone residential battery. Operation requires integration with the PCS and with the protection, control and communication equipment specified in the system design. The IP20 protection rating requires installation in a dry, ventilated indoor technical area protected against unauthorised access, water, dust and condensation. The system dimensions, approximate weight of 2240kg and resulting floor load must be considered when preparing the installation site. The usable energy is calculated at the recommended depth of discharge of 90%. Actual autonomy depends on the power demand of the connected loads, system losses, operating temperature and configured operating limits. Installation, configuration and commissioning must be carried out by qualified personnel in accordance with the manufacturer’s instructions and all applicable regulations.