Deye ESS BOS-G PRO Battery Module 5.12 kWh HV

The Deye ESS BOS-G PRO 5.12 kWh HV battery module is a high-voltage lithium iron phosphate (LiFePO₄) energy storage solution engineered for scalable residential, commercial, and light industrial applications. Designed as part of Deye’s BOS-G PRO modular battery platform, this module delivers reliable performance, long service life, and high safety standards required for modern photovoltaic and energy storage systems.

Each BOS-G PRO module provides 5.12 kWh of nominal energy capacity and is optimized for high-voltage battery architectures, allowing multiple modules to be connected in series to build larger energy storage systems. This modular approach enables flexible system design, making it suitable for both small residential installations and larger commercial ESS projects that may expand over time.

The battery is based on LiFePO₄ (LFP) chemistry, which is widely recognized for its superior thermal stability, enhanced safety, and long cycle life compared to conventional lithium-ion technologies. This chemistry significantly reduces the risk of thermal runaway and ensures stable operation even under demanding conditions.

An integrated Battery Management System (BMS) provides real-time monitoring and protection at cell and module level. The BMS continuously manages voltage, current, temperature, and state of charge, while protecting the system against over-voltage, under-voltage, over-current, short circuit, and overheating. This ensures reliable operation, maximized battery lifespan, and safe integration with compatible inverter systems.

The BOS-G PRO battery module is specifically designed for seamless compatibility with Deye high-voltage hybrid and on-grid inverters, enabling efficient energy storage, self-consumption optimization, peak shaving, backup power applications, and grid support functions where permitted. Communication between the battery system and inverter ensures accurate energy management and system diagnostics.

Mechanically, the BOS-G PRO module is built for rack-mounted or floor-mounted installations, allowing clean, professional system layouts in technical rooms, garages, utility areas, or commercial energy storage rooms. The robust enclosure and industrial-grade design make it suitable for long-term operation in controlled indoor environments.

Thanks to its scalable architecture, installers and system designers can start with a smaller battery capacity and expand the system later by adding additional modules, reducing upfront investment while preserving future flexibility.

Typical applications include:

• Residential solar PV systems with energy storage
• Commercial and industrial self-consumption systems
• Peak shaving and load shifting solutions
• Backup power and energy resilience projects
• Modular BESS installations using Deye HV inverters

Key advantages:

• High-voltage LiFePO₄ battery technology
• Modular design with scalable system capacity
• Long cycle life and high operational safety
• Advanced BMS with comprehensive protection functions
• Optimized compatibility with Deye HV inverter platforms
• Suitable for residential and commercial energy storage systems

The Deye BOS-G PRO 5.12 kWh HV battery module is an ideal choice for projects that demand safety, scalability, and long-term performance in a modern energy storage solution.