Deye BOS-G-Pack5.1 5.12kWh LiFePO4 high-voltage battery module for BOS-G Pro energy storage systems. Modular, scalable and designed for long-life commercial and industrial energy storage.
Deye BOS-G Pro 5.12kWh High Voltage Battery Module
The Deye BOS-G-Pack5.1 is a 5.12kWh LiFePO4 battery module designed specifically for the Deye BOS-G Pro high-voltage energy storage system. Using a modular rack-mounted architecture, BOS-G Pro systems can be configured from 5 to 16 battery modules in series, providing system capacities from 25.6kWh up to 81.92kWh.
Built for demanding energy storage applications, the BOS-G Pro combines high-voltage operation, LiFePO4 chemistry, intelligent battery management and modular scalability. It is well suited to commercial and industrial applications including farms, schools, supermarkets, banks, small factories and renewable-energy systems.
Why Choose the Deye BOS-G-Pack5.1?
The BOS-G-Pack5.1 provides a flexible way to build a larger high-voltage battery bank without replacing the entire battery system as energy requirements increase. Multiple 5.12kWh modules are installed into the BOS-G Pro rack and connected in series through the high-voltage control system.
LiFePO4 Battery Technology
The battery uses Lithium Iron Phosphate (LiFePO4/LFP) chemistry, selected for its safety characteristics and long service life. Deye specifies a cycle life of ≥6,000 cycles to 70% EOL under the stated test conditions.
5.12kWh Modular Capacity
Each BOS-G-Pack5.1 module provides:
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5.12kWh rated energy
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51.2V nominal voltage
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100Ah capacity
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100A nominal charge/discharge current
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125A peak discharge current
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90% recommended depth of discharge
The modules are combined to create a high-voltage battery system. The BOS-G Pro range supports 5 to 16 modules in series, allowing system capacities from 25.6kWh to 81.92kWh.
Intelligent Battery Management System
The BOS-G Pro incorporates intelligent BMS protection and monitoring. The system manages battery charging and discharging while monitoring important parameters such as voltage, current, temperature and state of charge.
Protection functions include over-charge, over-discharge, over-current and temperature protection, together with cell balancing and system fault monitoring.
Designed for High-Voltage Energy Storage
The BOS-G-Pack5.1 is not a conventional standalone 48V battery. It is a high-voltage battery module intended for installation as part of a complete BOS-G Pro battery cluster with the required high-voltage control box and rack.
The resulting battery systems operate at high DC voltages, with configurations ranging from 220–292V for the 5-module BOS-G25 Pro through to 704–934.4V for the 16-module BOS-G80 Pro.
Flexible System Expansion
The modular BOS-G Pro architecture allows additional battery modules to increase available energy and power. Deye documentation specifies configurations from 5 to 16 battery modules per cluster, while multiple battery clusters can also be connected in larger installations.
This makes the BOS-G Pro suitable for applications where energy storage requirements may grow over time.
Built for Commercial & Industrial Energy Storage
The Deye BOS-G Pro is designed as a modular energy storage platform for applications such as:
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Commercial solar systems
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Industrial energy storage
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Farms and agricultural installations
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Schools and educational facilities
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Supermarkets and retail facilities
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Banks and commercial buildings
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Small factories
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Renewable-energy systems
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Peak-load management
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Load shifting and energy optimisation
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Backup power applications
The manufacturer describes the system as providing reliable backup power, helping smooth the load curve and supporting peak-load transfer while improving the stability of renewable-energy systems.
Wide Operating Temperature Range
The BOS-G-Pack5.1 is designed for a wide range of operating conditions:
Charging: 0°C to 55°C
Discharging: -20°C to 55°C
Storage: 0°C to 35°C
The complete BOS-G Pro system is specified for installation in an enclosed environment and should be protected from direct sunlight, excessive humidity, corrosive environments and water exposure.
Communication & Monitoring
The BOS-G Pro uses CAN 2.0 and RS485 communication for communication with compatible equipment and battery monitoring. The high-voltage control box provides an HMI interface for displaying important battery information including total battery voltage, battery current, SOC and accumulated energy.
Rack-Mounted Design
The BOS-G-Pack5.1 is designed for installation inside the dedicated BOS-G Pro rack system. Deye offers rack configurations for different numbers of battery modules, providing a clean and professional installation for commercial and industrial energy storage systems.
Important: The BOS-G-Pack5.1 is a battery module and forms part of the complete Deye BOS-G Pro high-voltage battery system. A complete system requires the appropriate number of battery modules, high-voltage control box and rack configuration.
Key Specifications
| Specification | Deye BOS-G-Pack5.1 |
|---|---|
| Battery Type | LiFePO4 / LFP |
| Rated Energy | 5.12kWh |
| Nominal Voltage | 51.2V |
| Rated Capacity | 100Ah |
| Nominal Charge/Discharge Current | 100A |
| Peak Discharge Current | 125A |
| Recommended DoD | 90% |
| Charge Temperature | 0°C to 55°C |
| Discharge Temperature | -20°C to 55°C |
| Storage Temperature | 0°C to 35°C |
| Enclosure Rating | IP20 |
| Communication | CAN 2.0 / RS485 |
| Dimensions | 440 × 585 × 133mm |
| Approx. Weight | 46kg |
| Cycle Life | ≥6,000 cycles to 70% EOL |
| Installation | Rack mounting |
| System Configuration | 5–16 modules in series |
| Warranty | 10 years |
The technical data above is based on the supplied Deye BOS-G Pro documentation.
Deye BOS-G Pro Battery System Configurations
The BOS-G-Pack5.1 modules can be combined into different high-voltage battery capacities:
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5 × BOS-G-Pack5.1: 25.6kWh BOS-G25 Pro
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6 × BOS-G-Pack5.1: 30.72kWh BOS-G30 Pro
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7 × BOS-G-Pack5.1: 35.84kWh BOS-G35 Pro
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8 × BOS-G-Pack5.1: 40.96kWh BOS-G40 Pro
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10 × BOS-G-Pack5.1: 51.2kWh BOS-G50 Pro
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12 × BOS-G-Pack5.1: 61.44kWh BOS-G60 Pro
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16 × BOS-G-Pack5.1: 81.92kWh BOS-G80 Pro
Frequently Asked Questions
What is the Deye BOS-G-Pack5.1?
The BOS-G-Pack5.1 is a 5.12kWh LiFePO4 high-voltage battery module designed for the Deye BOS-G Pro modular energy storage system.
How much energy does one BOS-G-Pack5.1 provide?
Each battery module has a rated energy capacity of 5.12kWh and a nominal voltage of 51.2V.
Can the BOS-G-Pack5.1 be used as a standalone 51.2V battery?
No. It is designed as a module within the Deye BOS-G Pro high-voltage battery system and is installed together with the appropriate high-voltage control equipment and rack.
How many BOS-G-Pack5.1 batteries are required?
The BOS-G Pro system requires a minimum of 5 battery modules and supports up to 16 modules in series, depending on the required system capacity.
What is the maximum BOS-G Pro system capacity?
A 16-module configuration provides 81.92kWh rated energy, with 73.73kWh system usable energy under the manufacturer's stated test conditions.
What battery chemistry does it use?
The BOS-G-Pack5.1 uses LiFePO4 (Lithium Iron Phosphate) chemistry.
What is the recommended depth of discharge?
Deye specifies a recommended 90% depth of discharge (DoD).
How long is the battery expected to last?
Deye specifies ≥6,000 cycles to 70% EOL under the stated test conditions and a 10-year warranty for the BOS-G Pro system.
What communication protocols are supported?
The BOS-G Pro supports CAN 2.0 and RS485 communication.
Is the BOS-G Pro suitable for residential use?
The documentation primarily positions the BOS-G Pro as a modular energy storage solution for commercial and industrial a