Deye BOS-G-PRO-Pack-5.1 Battery Module – 5.12 kWh High-Performance LiFePO₄ Energy Storage for Scalable Solar Systems
The Deye BOS-G-PRO-Pack-5.1 is a professional-grade 5.12 kWh lithium iron phosphate (LiFePO₄) battery module, designed as a core building block for high-voltage commercial and industrial energy storage systems. Engineered for maximum safety, scalability, and long-term reliability, this battery module is an ideal solution for solar PV suppliers, installers, EPCs, and energy storage wholesalers serving residential, commercial, and small-scale C&I projects.
Advanced LiFePO₄ Cell Technology
The BOS-G-PRO-Pack-5.1 uses LiFePO₄ (LFP) cathode chemistry, known for its excellent thermal stability, non-toxic composition, and long service life. This chemistry ensures superior safety compared to conventional lithium technologies, with no memory effect and minimal self-discharge, allowing the module to remain unused for up to six months without degradation. The result is a safe, environmentally friendly solar battery optimized for daily charge and discharge cycles.
Intelligent Battery Management System
Each Deye BOS-G-PRO-Pack-5.1 battery module is equipped with an integrated intelligent BMS, providing comprehensive protection against over-charge, over-discharge, over-current, and abnormal temperature conditions. The BMS actively balances cell voltage and current, ensuring consistent performance and extending overall system lifespan. Communication via CAN 2.0 and RS485 allows seamless integration with Deye inverters and compatible third-party energy management systems.
Modular, Rack-Mounted Design
Designed in a standard 19-inch rack-mount format, the BOS-G-PRO-Pack-5.1 enables fast installation and clean system architecture. Each module delivers 5.12 kWh of rated energy at 51.2 V and 100 Ah, with a nominal charge and discharge current of 100 A and a peak discharge current of 120 A. Multiple modules can be connected in series and parallel to build flexible system capacities ranging from 35 kWh up to 87 kWh per rack, with support for large-scale parallel battery clusters.
Long Cycle Life and 10-Year Warranty
Built for long-term operation, the battery module achieves more than 6,000 cycles at 90% depth of discharge, with an end-of-life capacity retention of 70%. This makes it a reliable foundation for energy storage systems, self-consumption optimization, peak shaving, and backup power applications. Deye backs the system with a 10-year warranty, providing long-term security for installers and end users alike.
Designed for Professional Solar Applications
With an operating temperature range of –20 °C to +55 °C, IP20 enclosure rating, and compatibility with Deye’s BOS-G Pro high-voltage architecture, the BOS-G-PRO-Pack-5.1 is perfectly suited for indoor installations in commercial buildings, technical rooms, and energy storage containers. Its modular nature makes it ideal for complete solar kits, hybrid PV systems, and expandable energy storage solutions supplied by professional solar distributors.
Key Technical Specifications
Battery Type: LiFePO₄ (LFP)
Rated Energy: 5.12 kWh
Nominal Voltage: 51.2 V
Capacity: 100 Ah
Nominal Charge/Discharge Current: 100 A
Peak Discharge Current: 120 A
Cycle Life: ≥ 6,000 cycles (90% DoD, EOL 70%)
Dimensions: 440 × 585 × 133 mm
Weight: Approx. 46 kg
Certifications: UN38.3, CE, CE-EMC, IEC, VDE
Warranty: 10 years
