BigBattery ETHOS 12kW Energy Storage System | 10.2–30.7kWh | Modular LiFePO4 | Indoor-Ready | 12-Year Warranty

BigBattery’s ETHOS 12kW Energy Storage Systems offer a scalable, UL-certified solution for grid-tied applications, combining high-capacity lithium iron phosphate (LiFePO4) batteries with a powerful 12kW EG4 hybrid inverter. Designed for indoor installations, these systems provide reliable backup power and energy independence for various home sizes.

Key Features & Benefits:

• Modular Capacity Options: Choose from 10.2kWh, 15.3kWh, 20.4kWh, or 30.7kWh configurations to match your energy needs.

• High-Performance Inverter: 12kW EG4 hybrid inverter with 3 MPPT inputs, LCD touchscreen, and integrated UPS for seamless on/off-grid transitions.

• Advanced Safety: IP65-rated enclosure, internal fire suppression, and smart BMS with auto cell-balancing ensure long-term reliability.

• User-Friendly Monitoring: Interactive LED display with CANBus and RS485 communication protocols for real-time system insights.

• DIY-Friendly Installation: Stackable, wall-mountable design with all necessary hardware included for straightforward setup.

• Financial Incentives: Eligible for a 30% Federal Tax Credit, enhancing affordability.

Which ETHOS System Is Right for You?

• 10.2kWh: Ideal for tiny homes or cabins requiring essential backup power.

• 15.3kWh: Suitable for small to medium-sized homes aiming for partial energy independence.

• 20.4kWh: Designed for larger homes seeking comprehensive backup solutions.

• 30.7kWh: Best for expansive residences or properties with high energy demands, offering extensive autonomy.

User Manual / Specifications:

• Ethos ESS Spec Sheet
• Ethos ESS User Manual
• EG4 18kPV Hybrid Inverter Spec Sheet
• EG4 18kPV Hybrid Inverter User Manual
• UL9540A Certification
• UL1973 Certification
• UN38.3 Certification
• Safety Data Sheet
• View Our CEC Listing
• Rapid Shut Down Wiring Guide
• UL1741 Certificate