BOS-G-Pack5.1-Pro
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Deye BOS-G Pro Pack 5.1 – scalable high-voltage LiFePO4 energy storage module
The Deye BOS-G Pro Pack 5.1 is a 5.12 kWh high-voltage LiFePO4 energy storage module that serves as the foundation of the modular Deye BOS-G Pro system. Thanks to its rack-mountable 19″ design and series expandability, the BOS-G Pro Pack 5.1 modules enable the construction of a precisely sized high-voltage energy bank for any project – from 25.6 kWh up to 87 kWh – ideal for both demanding residential and commercial installations.
Why choose the Deye BOS-G Pro Pack 5.1 energy storage system?
The Deye BOS-G Pro Pack 5.1 battery is based on proven LiFePO4 (lithium iron phosphate) cell chemistry, which offers a high level of safety, long cycle life, and extremely low self-discharge – it can be stored for up to 6 months without charging, with no memory effect. The system’s intelligent BMS independently manages charging and discharging states, balances current and voltage across individual cells, and provides protection against deep discharge, overcharging, overcurrent, and extremely high and low temperatures. The modular design allows you to flexibly expand capacity and power by connecting multiple modules in series.
Key advantages of the Deye BOS-G Pro Pack 5.1
- Convenient installation – 19″ rack-mountable standard module for quick installation and maintenance
- Safe and reliable – LiFePO4 cathode material, long cycle life, aerosol fire suppression support
- Intelligent BMS – overcharge, deep discharge, overcurrent and temperature protection with automatic cell balancing
- Low self-discharge – up to 6 months shelf storage without charging, no memory effect
- Flexible scalability – 5–17 modules in series configuration (BOS-G25/40/60/80 Pro), up to 25.6–87 kWh system energy
- Wide temperature range – reliable discharge performance between −20 °C and +55 °C
- Future-proof upgradability – USB and remote firmware updates, compatible with Deye inverters
- Long lifespan and reliable support – 6000 cycles and 10-year warranty (70% EOL)
Applications
The Deye BOS-G Pro Pack 5.1 energy storage system is an excellent choice for larger residential buildings, commercial facilities, and smaller C&I (commercial and industrial) installations requiring efficient, safe, and scalable energy storage. Its high-voltage architecture is particularly effective in three-phase systems requiring stable performance and high voltage, providing a reliable foundation for modern hybrid or off-grid solar systems.
Deye BOS-G Pro Pack 5.1 technical specifications
| Parameter | Value |
|---|---|
| Cell chemistry | LiFePO4 (LFP) |
| Module energy content | 5.12 kWh |
| Module nominal voltage | 51.2 V |
| Nominal capacity | 100 Ah |
| Nominal charge/discharge current | 100 A |
| Peak discharge current (2 min, 25 °C) | 120 A |
| Expandability (system) | 5–17 modules, 25.6–87.04 kWh |
| System models (series module count) | BOS-G25 (5) / G40 (8) / G60 (12) / G80 (16) Pro |
| System nominal voltage | 256 / 409.6 / 614.4 / 819.2 V |
| System operating voltage | 220–292 / 352–467.2 / 528–700.8 / 704–934.4 V |
| System usable energy content | 23.04 / 36.86 / 55.3 / 73.73 kWh |
| Operating temperature | −20 – +55 °C |
| Communication | CAN2.0 / RS485 |
| Protection rating | IP20 |
| Dimensions (W × D × H) | 440 × 585 × 133 mm |
| Weight (approx.) | 46 kg |
| Installation | 19″ rack-mountable |
| Cycle life | 6000 cycles |
| Warranty | 10 years (70% EOL) |
| Certifications | UN38.3 / CE / CE-EMC / IEC62040 / CEC / VDE |
For full system operation, the BOS-G-PDU-2 high-voltage cluster control box and at least 5 modules connected in series are required.
Frequently asked questions about the Deye BOS-G Pro Pack 5.1 energy storage system
What is the capacity of the Deye BOS-G Pro Pack 5.1?
One module has 5.12 kWh energy content and 100 Ah nominal capacity at 51.2 V nominal voltage. The modules can be connected in series, allowing the system to be expanded from 25.6 kWh up to 87 kWh.
How many modules are required for the Deye BOS-G Pro system to operate?
For stable operation, at least 5 BOS-G Pro Pack 5.1 modules connected in series and one BOS-G-PDU-2 cluster control box are required.
In what environment can the Deye BOS-G Pro Pack 5.1 be used?
The module operates reliably in a temperature range between −20 °C and +55 °C, with IP20 protection rating, designed for indoor rack-mounted installation.
What warranty is provided for the Deye BOS-G Pro Pack 5.1 module?
The module comes with a 10-year warranty, with an expected lifespan of 6000 charge cycles (70% EOL).
| Weight | 46 kg |
|---|---|
| Dimensions | 58,5 × 44 × 13,3 cm |
| Per pallet | 8 pcs |
Shipping costs
For orders over 10 units, we provide a custom quote. Our shipping partner is DACHSER.
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