The BOS-G 40kWh Energy Storage System is a modular low-voltage (LV) lithium battery solution designed for commercial and residential energy storage. It is built using BOS-G 5.12kWh LiFePO₄ battery modules, combined in a rack with a cluster control unit (Battery Cluster Control Box / BMS).
A standard 40kWh configuration consists of 8 battery modules, delivering a total system capacity of approximately 40.96kWh, making it ideal for medium-scale power backup and solar storage systems.
Key Features
- Scalable Modular Design
Built from 5.12kWh modules, expandable from small to larger systems (3–12 modules supported) - 40kWh System Configuration
- 8 × 5.12kWh modules = ≈40.96kWh total energy
- Cluster Control Unit (BMS)
- Central monitoring of all batteries
- Balancing and protection
- Communication with inverter
- Rack-Mounted System
Standard 19-inch cabinet design supports:- Battery modules
- Cluster control box
- Easy installation & maintenance
- Advanced Safety (LiFePO₄)
- High thermal stability
- Long lifespan (≥6000 cycles)
- Smart Communication
Supports CAN2.0 / RS485 for inverter integration - Wide Temperature Operation
Works in harsh environments:- Charge: 0°C – 55°C
- Discharge: -20°C – 55°C
The cluster (control box) is very important:
- Acts as the main BMS for the whole battery bank
- Connects all modules into one system
- Communicates with the inverter
- Provides protection (overcharge, temperature, faults)
👉 Without the cluster unit, the batteries cannot operate as a unified system
