Deye BOS-G 85 PRO high-voltage storage set 87.04 kWh

The Deye BOS-G 85 PRO high-voltage storage set is a powerful and reliable storage solution for commercial applications, demanding private households as well as larger energy projects. With a total capacity of 87.04 kWh, modular expandability and intelligent battery management, it meets high standards for safety, efficiency and flexibility.

Highlights at a glance

• High capacity: 87.04 kWh gross storage capacity for large energy systems and maximum self-consumption optimisation
• Usable energy: approx. 78.33 kWh at 90 percent depth of discharge
• Modular design: 17 battery modules of 5.12 kWh each in a high-voltage cluster
• Flexible scalability: Up to 16 battery racks can be operated in parallel
• Intelligent control: Integrated BMS protects against overcharging, deep discharge, overcurrent and overheating
• Simple integration: Modular 19-inch rack system with CAN and RS485 communication

Efficient energy storage for demanding projects

With its high system voltage of 870.4 volts and a wide operating voltage range of 748 to 992.8 volts, the BOS-G 85 PRO provides a strong foundation for integration into modern energy systems. The lithium iron phosphate technology used ensures high safety, low self-discharge and a long service life.

Modular and expandable

The system architecture of the Deye BOS-G 85 PRO is designed for maximum flexibility. The storage set consists of 17 modules and can be flexibly expanded within the BOS-G Pro platform as required. Thanks to the ability to operate up to 16 racks in parallel and use several Deye inverters in an AC network, the system is suitable for growing load profiles and scalable commercial applications.

Safe energy management

The integrated battery management system permanently monitors cell voltages, temperatures and charge states. It actively protects against critical operating conditions and supports permanently reliable and efficient operation through automatic cell balancing.

Who is the Deye BOS-G 85 PRO suitable for?

The high-voltage storage set is ideal for:

• Commercial operations with high energy consumption or backup requirements
• Large photovoltaic systems focused on optimising self-consumption and managing peak loads
• Agricultural and industrial applications with high power requirements
• Project developers who require a modular and high-performance high-voltage system

FAQs on the Deye BOS-G 85 PRO high-voltage storage set

What storage capacity does the BOS-G 85 PRO deliver and how much of it is usable?

The set consists of 17 LiFePO₄ modules, each with 5.12 kWh gross capacity. This results in a total storage capacity of 87.04 kWh. With a recommended depth of discharge of 90 percent, around 78.33 kWh of usable energy is available.

What protection and management functions does the BMS handle?

The integrated battery management system continuously monitors and protects against overvoltage and undervoltage, overcurrent, temperature deviations and critical operating states. It also ensures even and efficient operation of all modules through cell balancing.

Which electrical parameters are relevant for the BOS-G 85 PRO?

• System nominal voltage: 870.4 V DC
• Operating voltage: 748 to 992.8 V
• Charge/discharge current: recommended 50 A, nominal value 100 A, peak discharge 125 A

Is the system modularly expandable?

Yes, the BOS-G 85 PRO is part of the modular BOS-G Pro platform. Several racks can be operated in parallel, allowing capacity and performance to be flexibly adapted to project-specific requirements.

Within which temperature range can the storage unit be operated?

• Charging: 0 °C to +55 °C
• Discharging: -20 °C to +55 °C

This makes the system suitable for a wide range of demanding indoor application environments.

Scope of delivery Deye BOS-G 85 PRO high-voltage storage set (87.04 kWh)

System configuration

• This product is a set consisting of the BOS-G Pro rack system, the BOS-G-PDU-2 high-voltage control box and 17 individual BOS-G-Pack5.1 battery modules.

Component 1: Deye rack system / battery cabinet

• Modular rack system for accommodating the high-voltage control box and the battery modules for a structured and service-friendly installation.

Component 2: Deye high-voltage control box / BOS-G-PDU-2

• The central control unit of the system manages communication, protection functions and system coordination.

Component 3 to 19: Seventeen Deye BOS-G-Pack5.1 high-voltage battery modules

• High-voltage battery modules of 5.12 kWh each, which are modularly integrated into the rack system.

1 x set of battery connection cables (plus & minus)

• High-voltage power cable for connecting the control box to a compatible high-voltage hybrid inverter.

1 x communication cable (CAN/RS485)

• Data cable for communication between the storage system and the inverter.

1 x set of connecting bridges / series connection cables

• Connecting components for the serial connection of the modules within the system.

1 x mounting accessories

• Includes the necessary materials for mounting the components in the rack system.

1 x operating and installation manual

• Documentation for installation, commissioning and operation of the system.