Deye BOS-G 40 PRO high-voltage storage set 40.96 kWh
Description
Product information
The Deye BOS-G 40 PRO high-voltage storage set is a powerful energy storage solution for commercial and private applications. With a storage capacity of 40.96 kWh, intelligent safety architecture and proven LiFePO4 technology, this system enables reliable, flexible and scalable utilisation of renewable energy sources.
Highlights at a glance
- High storage capacity: 40.96 kWh for demanding energy systems
- Usable energy: 36.86 kWh at 90 percent depth of discharge
- Flexible scaling: Parallel connection of up to 16 racks for larger systems
- Long-lasting cell technology: Over 6000 charge cycles with 70 percent residual capacity
- Compatibility: Support for USB and remote upgrades with Deye inverters
- Safe operation: Intelligent BMS with comprehensive cell protection
Efficient energy storage for the highest demands
The BOS-G 40 PRO system is based on stable and durable LiFePO4 cells, which offer above-average safety and efficiency. With a nominal system voltage of 409.6 V and a wide voltage range between 352 and 467.2 V, it is optimally suited for use in complex energy environments.
Scalable and adaptable
The modular system design enables individual configuration according to energy requirements. Several BOS-G 40 PRO sets can be operated in parallel. In addition, the system supports up to 10 inverters in AC parallel operation. This flexibility makes it particularly suitable for applications with increasing power requirements.
Intelligent control and maximum safety
The integrated battery management system (BMS) protects against overcharging, deep discharge, overcurrent and excessively high or low temperatures. It automatically balances cell voltages and thus ensures even utilisation and a long service life for the entire system.
Who is the Deye BOS-G 40 PRO storage set suitable for?
This high-voltage storage system is ideal for:
- Commercial enterprises with high load requirements or backup needs
- PV system operators looking for a scalable high-performance storage solution
- Private households with high energy requirements and a focus on own consumption
- System integrators who require reliable, configurable high-voltage storage solutions
| Model | DEYBOS-G-PRO |
| Battery type | LiFePO4 |
| Module capacity (kWh) | 5.12 |
| Module nominal voltage (V) | 51.2 |
| Module capacity (Ah) | 100 |
| Max. battery module number in series (optional) | 5-16 |
| System nominal voltage (V) | 256-819.2 |
| System operating voltage (V) | 220~934.4 |
| System capacity (kWh) | 25.6-81.92 |
| System usable capacity (kWh) | 23.04-73.73 |
| Charge/discharge current (A) - recommended | 50 |
| Charge/discharge current (A) - nominal | 100 |
| Charge/discharge current (A) - peak discharge (2 min,25°C) | 125 |
| Operating temperature (°C) | Charge: 0 ~ 55 / Discharge: -20 ~ 55 |
| Display system indicator | Yellow : Battery High Voltage Power On Red : Battery System Alarm |
| Communication port | CAN2.0, RS485 |
| Humidity | 5% ~ 85%RH |
| Altitude | ≤3000m |
| IP protection class of enclosure | IP20 |
| Storage temperature (°C) | 0 ~ 35 |
| Dimensions (W/D/H, mm) | 530 * 602 * 2219 |
| Weight (kg) | 290-837 |
| Installation site | Floor mounting |
| Recommended depth of discharge | 90% |
| Cycle life | 25 ± 2°C, 0.5C/0.5C, EOL70% ≥ 6000 |
| Warranty | 10 years |
| Certifications | UN38.3 / CE / CE-EMC / IEC62040 / CEC / VDE |
FAQs about the Deye BOS-G 40 PRO high-voltage storage set
What is the total capacity and usable energy of the system?
The system consists of 8 modules of 5.12 kWh each, resulting in a gross capacity of 40.96 kWh. At 90 % Depth of Discharge (DoD), a net of approx. 36.86 kWh is available.
How durable is the BOS‑G 40 PRO?
The system is designed for ≥ 6000 charge cycles at 0.5 C to 70 % DoD (at 25 ± 2 °C), with a 10-year warranty.
What fire protection and installation requirements apply?
- The system has IP20 protection class → only for dry indoor areas.
- The EU version requires a T60 fire protection room.
- Installation is in 19-inch racks, requiring stable, dry and well-ventilated rooms.
Which voltages and currents are technically relevant?
- Operating voltage: 352 V – 467.2 V (nominal 409.6 V DC)
- Max. continuous current: 100 A
- Peak current (2 min.): 125 A.
What fire protection and installation requirements apply?
- The system has IP20 protection class → only for dry indoor areas.
- The EU version requires a T60 fire protection room.
- Installation is in 19-inch racks, requiring stable, dry and well-ventilated rooms.
Scope of delivery Deye BOS-G40 PRO high-voltage storage set (40.96 kWh) with rack system:
System composition
- This product is a set and consists of a rack cabinet and the individual plug-in modules (BMS and batteries).
Component 1: Deye rack system / battery cabinet
- A cabinet to accommodate the BMS unit and battery modules, often with castors and feet.
Component 2: Deye control box / BMS slot-in module
- The central control unit (BMS/BCCB), which is inserted into the rack cabinet as a module.
Components 3 to 10: Eight Deye BOS-G-PRO-Pack5.1 high-voltage battery slot-in modules (each 5.12 kWh)
- Eight pure high-voltage battery modules, which are also inserted into the rack cabinet.
1 x set of battery connection cables (plus & minus)
- A pair of special high-voltage power cables to connect the BMS module to a compatible high-voltage hybrid inverter.
1 x communication cable (CAN/RS485)
- A long data cable for communication between the BMS module and the inverter.
8 x connection bridge / series connection cable
- Short, robust cables or fixed bridges to connect the nine slot-in modules (BMS + 8 batteries) in the rack.
1 x earthing cable
- A protective conductor cable for correct earthing of the rack system.
1 x mounting accessories (rack mounting)
- Includes screws and rails for fixing the modules inside the rack, as well as material for anchoring the cabinet to the floor.
1 x operating and installation manual
- A printed manual describing the assembly of the entire rack system.
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