BOS-G 40KWH

The Deye BOS-G 40kWh Lithium Battery Energy Storage System is a high-capacity LiFePO₄ (Lithium Iron Phosphate) modular energy storage solution designed for commercial, industrial, and large residential solar power applications. Built for reliability, safety, and scalability, it provides powerful backup energy and efficient solar storage for systems that require consistent and long-duration power support.

With a total energy storage capacity of 40kWh, the BOS-G system is composed of multiple modular lithium battery units working together as a unified energy bank. It is ideal for users with high energy consumption, offering seamless integration with hybrid inverters to store solar energy, reduce electricity costs, and provide uninterrupted backup power during outages.

High-Capacity Modular Energy Storage

The BOS-G 40kWh system is engineered for demanding energy environments where reliability and performance are essential.

Key Specifications

• Battery Chemistry: LiFePO₄ (Lithium Iron Phosphate)
• Total Energy Capacity: 40kWh (modular system)
• High Voltage System Design
• Modular Rack-Based Architecture
• Expandable Battery Bank Configuration
• Maintenance-Free Operation

This system is built by combining multiple BOS-G battery modules to achieve a total of 40kWh storage, making it highly flexible and scalable.

Advanced Lithium Iron Phosphate Technology

The BOS-G system uses premium LiFePO₄ cells known for safety, efficiency, and durability.

Benefits of LiFePO₄

• Excellent Thermal Stability
• High Safety and Fire Resistance
• Long Cycle Life
• Deep Discharge Capability
• High Charging Efficiency
• Low Self-Discharge Rate
• Environmentally Friendly Composition

This makes it one of the safest and most reliable battery technologies for large-scale energy storage systems.

Long Service Life and Durability

The Deye BOS-G system is designed for long-term operation under demanding conditions.

Lifespan Features

• Over 6,000 Charge and Discharge Cycles
• Design Life of 10–15+ Years
• Stable Capacity Retention
• Minimal Performance Degradation

This ensures long-lasting performance and reduced replacement costs over time.

Intelligent Battery Management System (BMS)

Each BOS-G module is equipped with an advanced BMS that ensures safe and optimized operation of the entire 40kWh system.

BMS Protection Functions

• Overcharge Protection
• Over-Discharge Protection
• Overcurrent Protection
• Short Circuit Protection
• Temperature Monitoring and Protection
• Cell Balancing
• Voltage and Current Monitoring
• Fault Detection and Alarm System

The BMS ensures that all battery modules operate efficiently and safely as a unified system.

Modular and Scalable Design

The BOS-G 40kWh system is fully modular, allowing flexibility for future expansion.

Expansion Features

• Built from Multiple BOS-G Modules
• Parallel System Configuration
• Easy Capacity Expansion Beyond 40kWh
• Suitable for Large Energy Storage Projects
• Flexible System Design for Various Applications

This scalability allows users to expand their system as energy demands increase.

High Voltage System Efficiency

The BOS-G system is designed for high-voltage operation, improving efficiency and reducing energy loss.

Efficiency Advantages

• Reduced Cable Losses
• Improved Inverter Performance
• Faster Charging and Discharging
• Better System Stability
• High Energy Conversion Efficiency

High-voltage architecture makes it ideal for commercial and industrial installations.

Intelligent Energy Management

The BOS-G 40kWh system works with hybrid inverters to provide smart energy control.

Smart Functions

• Solar Self-Consumption Optimization
• Peak Shaving
• Load Management
• Time-of-Use Scheduling
• Backup Power Prioritization
• Grid Support Functions

This helps reduce electricity costs and improve energy independence.

Wide Inverter Compatibility

The BOS-G system integrates seamlessly with modern hybrid inverters.

Communication Interfaces

• CAN Bus Communication
• RS485 Communication
• Real-Time System Monitoring
• Smart Inverter Integration

It is fully compatible with Deye hybrid inverters and other supported inverter brands.

Safe and Reliable Construction

Safety is a core design priority of the BOS-G system.

Safety Features

• Advanced Battery Management System
• Fire-Resistant LiFePO₄ Cells
• High-Voltage Protection Systems
• Overtemperature Protection
• Overcurrent and Short Circuit Protection
• Stable Rack-Mounted Structure

These features ensure reliable and safe operation in all conditions.

Professional Rack Installation Design

The BOS-G 40kWh system is designed for structured and organized installation.

Physical Features

• Rack or Cabinet Mounted System
• Industrial-Grade Construction
• Easy Cable Management
• Modular Stackable Design
• Clean and Professional Installation Layout

This makes it ideal for commercial energy rooms and industrial setups