BigBattery 48V ETHOS 30.7KWH (6 Module)
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BigBattery ETHOS 30.7kWh Energy Storage System (6 Module Kit + 12kW Inverter)
Whole-Home Energy Platform — Maximum Storage, Intelligent Control, Scalable Power
Overview
The BigBattery ETHOS 30.7kWh system is a high-capacity residential energy storage solution designed for serious power users who want extended runtime, deeper energy independence, and full system control. Combining six stackable LiFePO4 battery modules with a 12,000W hybrid inverter, it delivers a complete, scalable system capable of powering large homes, off-grid properties, and energy-intensive environments.
Built for durability, expansion, and seamless integration, this system transforms solar generation into a reliable, always-available energy source.
Why This System Works
-
Massive Energy Storage Capacity
~30.7kWh system capacity for extended runtime and whole-home backup -
Complete Integrated System
Includes battery stack, control box, and 12kW hybrid inverter -
High Output Performance
Up to 10,240W continuous power with strong surge capability -
Modular & Scalable Design
Expandable up to 16 systems in parallel per control box -
Advanced LiFePO4 Battery Chemistry
Long lifespan, thermal stability, and enhanced safety -
Smart Battery Management System (BMS)
Auto cell-balancing with full protection against system faults -
All-Weather Rated (IP65)
Built for indoor or outdoor installation -
Advanced Energy Features
Supports AC coupling, peak shaving, smart load control, and UPS backup -
High Solar Input Capacity
Handles up to 18,000W PV input with 3 MPPT channels -
Real-Time Monitoring
LED control box + inverter touchscreen for system visibility and control
System Role
Functions as a full-scale energy backbone, managing power generation, storage, and distribution across residential or off-grid systems.
Integrates with:
- Solar arrays (up to 18kW)
- Utility grid connections
- Backup generators
- Whole-home electrical infrastructure
Key Specifications
| Spec | Detail |
|---|---|
| Battery Type | LiFePO4 |
| Nominal Voltage | 51.2V |
| System Voltage | 48V |
| Total Capacity | ~30.7kWh (6 Modules) |
| Amp Hours | 300Ah |
| Continuous Output | 10,240W |
| Peak Discharge Current | 300A (5 sec) |
| Max Charge Current | 200A |
| Solar Input Capacity | Up to 18,000W |
| Inverter Output | 12,000W |
| MPPT Inputs | 3 |
| Operating Voltage Range | 48V – 57V |
| Temperature Range | -4°F to 140°F |
| Protection Rating | IP65 |
| Certifications | UL9540, UL1973, UL9540A, UN38.3, CE |
| Weight | 387 lbs |
| Dimensions | 59.8" × 26.5" × 6.7" |
What’s Included
- (6) 51.2V 100Ah ETHOS Battery Modules
- (1) ETHOS Control Box
- (1) ETHOS Rack Base
- Parallel Communication Cable
- Parallel Power Cables
- 12kW Hybrid Inverter (System Pairing)
Ideal Applications
- Whole-home backup power
- Large solar + storage systems
- Off-grid homesteads
- Energy-intensive properties
- Grid-tied systems with peak shaving
Bottom Line
A high-capacity, fully integrated energy system built for those who want serious storage, serious output, and a system that can scale with their vision of energy independence.