Deye
Deye High Voltage Battery - 5.12kW BOS-G Pro
Deye High Voltage Battery - 5.12kW BOS-G Pro
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The Deye BOS G Pro 5.1 kWh Battery Module is a high‑performance lithium iron phosphate (LiFePO₄) energy storage unit designed for modular, high‑voltage commercial and hybrid solar systems. Engineered for long service life, safety, and scalability, this module forms the core building block of the Deye BOS G Pro battery system.
With its compact rack‑mountable 19‑inch design, the BOS G Pro battery module enables professional installations in commercial energy rooms, inverter cabinets, and indoor battery enclosures. Multiple modules can be combined in series and parallel to meet a wide range of energy storage requirements.
Key Features and Benefits
LiFePO₄ Battery Technology
Utilises lithium iron phosphate chemistry for high thermal stability, enhanced fire safety, low self‑discharge, and long cycle life.
Modular and Scalable Design
Each 5.12 kWh module can be stacked and combined with other BOS G Pro modules, allowing flexible system sizing and future capacity expansion.
High‑Voltage System Ready
Designed for operation within high‑voltage battery systems when combined with the BOS G Pro BMU and rack, ensuring high efficiency and reduced system losses.
Rack‑Mounted Professional Format
Standard 3U rack form factor allows clean, space‑efficient installations with simplified maintenance and cable management.
Long Cycle Life
Delivers reliable performance for demanding commercial applications, supporting long‑term energy storage with minimal degradation.
Wide Operating Temperature Range
Performs consistently across a broad range of environmental conditions when installed in suitable indoor environments.
Technical Specifications
Battery Model
BOS‑G‑Pack5.1
Electrical Specifications
- Battery Chemistry: Lithium Iron Phosphate (LiFePO₄)
- Nominal Voltage: 51.2 V DC
- Rated Capacity: 100 Ah
- Rated Energy: 5.12 kWh
- Nominal Charge / Discharge Current: 100 A
- Peak Discharge Current: 120 A
Environmental Specifications
- Charge Temperature Range: 0°C to 55°C
- Discharge Temperature Range: –20°C to 55°C
- Storage Temperature Range: 0°C to 35°C
- Ingress Protection Rating: IP20
- Installation Location: Indoor
Physical Specifications
- Dimensions (W × D × H): 440 × 585 × 133 mm
- Weight: 46 kg
- Form Factor: 19‑inch rack‑mount module
Performance
- Recommended Depth of Discharge: Up to 90%
- Cycle Life: ≥6000 cycles (under recommended operating conditions)
Typical Applications
- Commercial and industrial solar energy storage
- High‑voltage hybrid PV systems
- Modular battery banks for peak shaving
- Backup power and energy resilience
- Grid‑tied and off‑grid energy storage systems
Compatibility
This battery module is specifically designed for use with:
- Deye BOS G Pro battery racks
- Deye BOS G Pro BMU (Battery Management Unit)
- Compatible Deye high‑voltage hybrid and commercial inverters
Why Choose the Deye BOS G Pro Battery Module
The Deye BOS G Pro 5.1 kWh Battery Module combines proven LiFePO₄ chemistry, professional rack integration, and long cycle life into a flexible and scalable energy storage building block. It is an ideal choice for installers and system designers seeking reliable, future‑ready high‑voltage battery solutions.

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"We still in the process of having our system installed. Since the beginning of our interaction with Haultron we have had excellent service. Very professional and friendly staff. We highly recommend Haultron to anyone. Keep up the great work!"
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Ellen Eades
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