Smart BESS Cabinet 30kW/50kW | 60kWh–100kWh Energy Storage System OEM & ODM Manufacturer
Feb 11, 2026
Smart BESS Cabinet: The Future of Modular High-Performance Energy Storage
As the global energy transition accelerates and the demand for reliable power supply continues to rise, efficient, safe, and intelligent energy storage solutions have become essential across a wide range of applications. The Smart BESS Cabinet has emerged precisely in this context. It is a modular, high-performance battery energy storage system specifically designed for commercial and industrial use, outdoor emergency power, and telecom base stations, featuring flexible configuration, strong system compatibility, high reliability, intelligent energy management, and comprehensive safety protection.
As a core component of modern energy storage ecosystems, the Smart BESS Cabinet offers multiple configuration options, including 30kW / 50kW output power and 60kWh / 100kWh storage capacity. Thanks to its modular architecture, the system can also be expanded to support larger-scale energy storage projects. This design philosophy allows the Smart BESS Cabinet to adapt easily to complex operating environments. Whether used as a backup power source for critical loads or as a key storage unit in renewable energy systems, it delivers stable and efficient performance.

1. Modular Design: Flexibility and Performance Optimization Combined
The Smart BESS Cabinet adopts a modular structure in which all system components are connected through standardized interfaces, enabling fast deployment and scalable capacity expansion. This architecture brings several clear advantages:
* Flexible Configuration: Users can choose different system combinations such as 30kW/60kWh or 50kW/100kWh according to on-site requirements, with the ability to upgrade capacity in the future.
* Easy Maintenance: Modular components allow for quick replacement and maintenance, minimizing downtime and avoiding full system shutdowns.
* Rapid Deployment: The all-in-one cabinet design simplifies installation, significantly reducing construction time and labor costs.
With this flexible design, the Smart BESS Cabinet effectively meets the energy storage needs of applications ranging from small and medium-sized commercial facilities to large factories and telecom infrastructure.
| Model | CAO-30kW60KWh Battery parameter | CAO-50kW100KWh Battery parameter |
|---|---|---|
| Cell Type | LiFePO4 | LiFePO4 |
| Nominal Capacity | 314AH | 280AH |
| Charge Ratio | 0.5C | 0.5C |
| Energy | 60.288kWh | 100.48kWh |
| Nominal Voltage | 192V | 320V |
| Voltage Range | 157.5~217.5V | 300V~438V |
| Rated Power AC Side | 30 kW | 50 kW |
| Rated Voltage AC Side | 125VDC | 380VAC |
| Maximum Power AC Side | 50VDC | 50kVA |
| Maximum Current AC Side | 65A | 80A |
| THDI (Reduced THDI) | <2% (Reduced Power) | <2% (Reduced Power) |
| DC Component | <0.5% | <0.5% |
| Grid Rated Frequency | 50/60Hz | 50/60Hz |
| Rated Grid Voltage | 230/400V(AC) | 230/400V(AC) |
| Voltage Deviation | ±15% | ±15% |
| Connect A Wire | 3P+N+PE | 3P+N+PE |
| Power Factor | 0.98 Leading To 0.98 Lagging | 0.98 Leading To 0.98 Lagging |
| Full Load Voltage Range | 615~950 (3W+PE)/680~950 (3W+N+PE)(V) | 615~950 (3W+PE)/680~950 (3W+N+PEC)(V) |
| System Data | CAO-30kW60KWh | CAO-50kW100KWh |
|---|---|---|
| Lower In/Out/Side In/Out | Lower In/Out/Side In/Out | Lower In/Out/Side In/Out |
| Communication Interface | RS485 / CAN / RS232 / RJ45 | RS485 / CAN / RS232 / RJ45 |
| System Communication Protocol | Standard: Modbus (Optional) | Standard: Modbus (Optional) |
| Protection Function | Over-Charge, Over-Discharge, Over-Current, Short-Circuit, Over-Voltage, Under-Voltage, Over-High/Low Temperature | Over-Charge, Over-Discharge, Over-Current, Short-Circuit, Over-Voltage, Under-Voltage, Over-High/Low Temperature |
| Endurance Protection Rating | IP21 | IP21 |
| Operating Temperature | Charging: -20℃~65℃; Discharging: -30℃~70℃ | Charging: -20℃~65℃; Discharging: -30℃~75℃ |
| Storage Temperature | -10℃~40℃ | -10℃~40℃ |
| Cycle Life | ≥8000 Times @ 80% DoD | ≥8000 Times @ 80% DoD |
| Anti-Corrosion Grade | C4 | C4 |
| PCS Temperature Control Method | Intelligent Temperature Control Air-Cooled Industrial Grade Air Conditioning | Intelligent Temperature Control Air-Cooled Industrial Grade Air Conditioning |
| Battery Temperature Control Method | Pack Aerosal + Sevoflurane + Water Fire Interface | Pack Aerosal + Sevoflurane + Water Fire Interface |
| Coding | N/A | N/A |
| Firefighting Program | N/A | N/A |
| Size | 1600*710*1500mm | 1600*710*1500mm |
| Weight | Approx. 2.5t | Approx. 2.5t |
| Approve | CE-EMC,UN38.3 | CE-EMC,UN38.3 |
| DIESEL GENERATOR AUTO Control System | Optional | Optional |
| Lighting System | N/A | N/A |
| Smoke Detector | N/A | N/A |
| Fire Extinguishing System | YES | YES |
| Fire Sprinkler System | N/A | N/A |
| STS | Optional | Optional |
| Assembly Style | Rock Style | Rock Style |
| Cloud Monitoring Platform | YES | YES |
| Thermal Management AC | NO (Forced Air Cooling) | NO (Forced Air Cooling) |
2. Intelligent Energy Management: Efficient, Safe, and Visualized
A truly intelligent energy storage system must be capable of real-time monitoring of battery status, system efficiency, and energy flow. The Smart BESS Cabinet integrates advanced BMS (Battery Management System) and EMS (Energy Management System) technologies to deliver:
* Real-Time Monitoring: Key parameters such as battery status, state of charge, and temperature can be viewed via local displays or remote platforms.
* Smart Energy Dispatch: Automatic adjustment of charging and discharging strategies based on grid conditions and load demand.
* Remote Management: Support for RS485, CAN, and Ethernet communication interfaces enables cloud-based monitoring and management.
These intelligent features significantly improve operational efficiency and system reliability, making the Smart BESS Cabinet a truly smart energy storage solution that understands and optimizes real-world energy usage.

3. Multi-Layer Safety Protection: Energy Storage You Can Trust
Safety is a critical factor for energy storage systems, especially under high load and high-temperature operating conditions. The Smart BESS Cabinet incorporates multiple safety mechanisms to ensure both equipment and user protection:
* Advanced BMS Protection: Comprehensive safeguards against over-voltage, under-voltage, over-current, short circuits, and over-temperature.
* Intelligent Cooling System: Air-based thermal management combined with smart temperature control keeps batteries within safe operating ranges.
* IP54 Protection Rating: Suitable for both indoor and outdoor installations, enhancing system durability and environmental adaptability.
This multi-level safety design ensures stable operation during peak loads and reliable performance even in demanding environments.

4. Wide Application Scenarios: From Commercial Use to Emergency Power
Thanks to its robust design and intelligent features, the Smart BESS Cabinet is suitable for a wide range of applications, including:
* Commercial and Industrial Load Management & Peak Shaving: Works seamlessly with renewable energy systems to reduce electricity costs.
* Telecom Base Station Backup Power: Provides stable power during grid outages.
* Outdoor Temporary Power Supply: Ideal for construction sites, outdoor events, and disaster relief operations.
* Green Microgrids and Distributed Energy Projects: Serves as a core energy storage unit to improve energy independence.
These application scenarios reflect the growing demand for smart energy solutions that balance reliability, efficiency, and cost control.
5. ONESUN's OEM & ODM Energy Storage Solutions
Behind the Smart BESS Cabinet stands ONESUN, a globally recognized battery and energy storage system manufacturer with extensive industry experience. In addition to standard products, ONESUN offers comprehensive OEM and ODM customization services, providing tailored energy storage solutions for global partners. Key advantages include:
* High-Quality Battery Cells and System Integration: The use of premium LFP battery cells ensures long cycle life and high safety.
* Flexible Customization Services: Custom options are available for cabinet design, power output, capacity, and communication protocols.
* End-to-End Technical Support: From system design and testing to mass production and delivery, ONESUN provides a complete service workflow.
This strong customization capability not only enhances the performance of the Smart BESS Cabinet but also enables partners to accelerate market entry with competitive energy storage products.

With its modular design, intelligent energy management, comprehensive safety protection, and wide application adaptability, the Smart BESS Cabinet has become an essential solution in modern energy storage systems. Supported by ONESUN's professional OEM and ODM services, it is more than just a high-performance product-it is a reliable partner for businesses seeking energy optimization and stable power supply. Whether for peak shaving, renewable energy integration, or emergency backup power, the Smart BESS Cabinet delivers dependable and future-ready energy storage performance.
Article Source: Lithium battery manufacturer - ONESUN China
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