BigBattery ETHOS 48V 20.4kWh (4 Module) – Stackable Power Storage

BigBattery ETHOS 48V 20.4kWh (4 Module) – Stackable Power Storage

The BigBattery ETHOS 48V 20.4kWh Stackable Power Storage System is a robust, high-capacity energy solution built for serious off-grid and grid-tied applications. Whether you're powering a large off-grid homestead, cabin, or a full-sized residential home, this system delivers safe, scalable, and uninterrupted energy—day in and day out.

This configuration includes four 5.12kWh LiFePO4 battery modules, a dedicated ETHOS control box, and essential interconnect cables and hardware for streamlined installation. The system’s modular, stackable design makes it easy to expand, while the integrated LED display, CANBus/RS485 communication, and advanced BMS with auto cell balancing ensure smooth monitoring and control of your power.

Encased in a durable IP65-rated enclosure and equipped with an internal fire suppression system, the ETHOS is engineered for long-term safety and performance. Ready to pair with solar inverters, this system is ideal for off-grid living, backup power, or full home energy independence.

Key Features:

• Battery Capacity: 20.48kWh (4 × 5.12kWh modules)
  
• System Voltage: 48V – Perfect for off-grid or grid-tied energy storage
  
• Battery Chemistry: Lithium Iron Phosphate (LiFePO4)
  
• Control Box: LED display with CANBus & RS485 protocols
  
• Safety Features: IP65-rated housing, fire suppression, auto cell balancing
  
• Expandable Design: Stackable & modular for future growth
  
• Installation: Includes rack base and all necessary cabling for setup
  

Designed For 48V Applications 

• Residential power systems 
• Home solar systems 
• Cabins & tiny homes 
• Family homes & mansions 
• Off-grid homesteads 
• Emergency power 
• Whole home backup 
• Lead acid replacement

Benefits:

• Reliable lithium battery technology with extended cycle life
  
• Supports peak shaving and time-of-use optimization
  
• Easily scalable for larger storage needs
  
• Compatible with various solar PV setups and inverters
  
• Designed for continuous, off-grid or grid-tied energy supply
  
• 30% Federal Tax Credit Available
  

What’s Included:

• 4 × 48V ETHOS 5.12kWh Stackable Battery Modules – Model: FETHS-48051-G1
  
• 1 × ETHOS Control Box – Model: CNT060
  
• 1 × ETHOS Rack Base – Model: CNT081
  
• 2 × Parallel Power Cables (4.9 ft / 1500mm) – Model: CBL089
  
• 1 × Parallel Communication Cable (4.9 ft / 150cm) – Model: CBL096
  
  

Specifications

Product Specifications