High-voltage Stack Dyness S51100 Battery/ 51.2V 100Ah/5.12KWh

Comprehensive Solution for Energy Independence

Energy independence is not just backup power — it is a strategic advantage for homes and businesses. The STACK100 energy storage system based on Dyness S51100 51.2V 100Ah modules is a scalable high-voltage solution designed for stable autonomous power supply. Combined with the base platform and Battery Disconnect Unit (BDU), the system forms a complete high-voltage stack that ensures reliable operation with modern hybrid inverters. The key advantage is the ability to start with a minimal configuration and gradually increase capacity without changing the system architecture.

Modularity and Scalability: Flexibility for Any Application

The system is built on modules rated at:
51.2 V
100 Ah
5.12 kWh each

STACK100 allows connecting from 3 to 15 modules in series, creating a system with a capacity of approximately:

• from 15.4 kWh

• up to 76.8 kWh

For larger projects, multiple stacks can be connected in parallel. This makes the solution suitable for private homes as well as commercial facilities with higher energy demand.

The S51100 batteries are based on LiFePO₄ chemistry, providing high thermal stability, resistance to overheating, up to 8000 cycles under optimal conditions, and up to 95% depth of discharge. This ensures long-term operation even with daily cycling.

Intelligent Management System

Each module is equipped with a built-in BMS that monitors cell voltage and temperature, balances cells during charging, and protects against overload, overvoltage, and deep discharge.

The Stack 100 system includes a BDU (Battery Disconnect Unit) with a main DC breaker and centralized control. Communication with the inverter is carried out via CAN or RS485, ensuring stable integration and accurate battery status monitoring.

Ease of Installation and Integration

Compact design and vertical stacking allow space saving, easy scalability, and simplified maintenance procedures. The system is intended for indoor installation (IP20) with proper ventilation.

Key Advantages

• Scalable capacity from 15 to 76.8 kWh

• Up to 8000 operating cycles

• Up to 95% depth of discharge

• Intelligent BMS control

• High inverter compatibility

• Optimal solution for residential and commercial use

Smart Energy Management

S51100 enables increased self-consumption of solar energy, reliable backup power supply, peak load reduction, and improved grid stability. The system automatically adapts to the inverter’s operating mode and the site’s energy demand.

Conclusion

The modular Dyness S51100 (STACK100) system is a flexible, safe, and long-lasting solution for modern energy storage applications. It combines scalability, high efficiency, and reliable control electronics, making it an ideal choice for those seeking stability and full control over their energy resources.