BigBattery ETHOS 48V LifePO4 Batteries + EG4 FlexBOSS18 13kW 48V Hybrid Solar Inverter
The BigBattery ETHOS™ + EG4 FlexBOSS18 ESS System is a complete, high-performance energy solution designed for both on-grid and off-grid applications. Combining the scalable ETHOS 48V lithium battery system with the powerful FlexBOSS18 hybrid inverter, this system delivers reliable, efficient, and intelligent energy management in one integrated package.
Expandable up to 80+ kWh, the ETHOS battery adapts to your energy needs – while the FlexBOSS18 provides up to 18,000W PV input, dual MPPTs, and 120/240V split-phase output for flexible system design and strong performance. Integrated with the GridBOSS MID gateway, the system enables advanced energy control, including load management, AC coupling, and generator integration.
Designed with UL 9540 certified configurations, advanced battery management, and U.S.-engineered components, this system ensures safe, maintenance-free performance with seamless closed-loop communication and real-time monitoring.
Compatibility
Integrated & Optimized System:
- ETHOS Battery System + EG4 FlexBOSS18 Hybrid Inverter
Expandable & Flexible:
- Scalable ETHOS battery capacity up to 80+ kWh
- Compatible with additional ETHOS modules for future expansion
- Supports grid-tied, hybrid, and off-grid installations
Key Features
- Complete ESS Solution – Battery + inverter system designed to work seamlessly together
- 18,000W PV Input – High solar capacity with dual MPPT optimization
- 120/240V Split-Phase Output – Powers residential and light commercial loads
- LiFePO₄ Battery Chemistry – Safe, stable lithium technology with long lifespan
- 6,000+ Cycle Life – Built for years of daily use and long-term savings
- Closed-Loop Communication – Optimized coordination between battery and inverter
- GridBOSS Integration – Advanced load management, AC coupling, and generator support
- Advanced Safety Protections – Includes rapid shutdown, ground fault, and arc fault protection
- Modular Expansion – Easily scale storage capacity as energy needs grow
- Remote Monitoring & Alerts – Wi-Fi connectivity with real-time system tracking
- Maintenance-Free Operation – No routine servicing required
A complete, scalable energy storage system built for performance, flexibility, and long-term independence – backed by safety, smart controls, and U.S.-based support.
Original: $6,055.00
-65%$6,055.00
$2,119.25Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The BigBattery ETHOS™ + EG4 FlexBOSS18 ESS System is a complete, high-performance energy solution designed for both on-grid and off-grid applications. Combining the scalable ETHOS 48V lithium battery system with the powerful FlexBOSS18 hybrid inverter, this system delivers reliable, efficient, and intelligent energy management in one integrated package.
Expandable up to 80+ kWh, the ETHOS battery adapts to your energy needs – while the FlexBOSS18 provides up to 18,000W PV input, dual MPPTs, and 120/240V split-phase output for flexible system design and strong performance. Integrated with the GridBOSS MID gateway, the system enables advanced energy control, including load management, AC coupling, and generator integration.
Designed with UL 9540 certified configurations, advanced battery management, and U.S.-engineered components, this system ensures safe, maintenance-free performance with seamless closed-loop communication and real-time monitoring.
Compatibility
Integrated & Optimized System:
- ETHOS Battery System + EG4 FlexBOSS18 Hybrid Inverter
Expandable & Flexible:
- Scalable ETHOS battery capacity up to 80+ kWh
- Compatible with additional ETHOS modules for future expansion
- Supports grid-tied, hybrid, and off-grid installations
Key Features
- Complete ESS Solution – Battery + inverter system designed to work seamlessly together
- 18,000W PV Input – High solar capacity with dual MPPT optimization
- 120/240V Split-Phase Output – Powers residential and light commercial loads
- LiFePO₄ Battery Chemistry – Safe, stable lithium technology with long lifespan
- 6,000+ Cycle Life – Built for years of daily use and long-term savings
- Closed-Loop Communication – Optimized coordination between battery and inverter
- GridBOSS Integration – Advanced load management, AC coupling, and generator support
- Advanced Safety Protections – Includes rapid shutdown, ground fault, and arc fault protection
- Modular Expansion – Easily scale storage capacity as energy needs grow
- Remote Monitoring & Alerts – Wi-Fi connectivity with real-time system tracking
- Maintenance-Free Operation – No routine servicing required
A complete, scalable energy storage system built for performance, flexibility, and long-term independence – backed by safety, smart controls, and U.S.-based support.
