Description
Description
BigBattery ETHOS 48V 10.24kWh LiFePO4 Home Battery Backup – 2 Module | K0948
Product Description
The BigBattery ETHOS 48V 10.24kWh LiFePO4 Battery System (K0948) is a modular energy storage solution designed for home backup, off-grid, and hybrid solar systems. This configuration includes two BigBattery ETHOS battery modules, providing a combined 10.24kWh capacity and 200Ah.
Built with LiFePO4 battery chemistry, advanced BMS protection, and an outdoor-ready design, the ETHOS system provides reliable, maintenance-free energy storage. Its modular architecture allows capacity to be expanded as energy requirements grow.
Key Benefits
- 10.24kWh Total Capacity – Two ETHOS battery modules
- 48V System – 51.2V nominal voltage
- 200Ah Capacity
- 10,240W Maximum Continuous Power
- LiFePO4 Battery Chemistry – Safe, stable lithium technology with long lifespan
- 6,000+ Cycle Life – Designed for years of daily use
- Advanced BMS Protection – Protection against voltage, current, and temperature risks
- Modular Expansion – Increase battery capacity as power requirements grow
- Integrated Smart Control – Optimized performance through the ETHOS controller
- Plug-and-Play Modular Design – Simplifies installation
- Indoor or Outdoor Installation – IP65 / NEMA 4X protection rating
- Maintenance-Free Operation
- CANBus / RS485 Communications
- 12-Year Warranty
- Lifetime USA-Based Tech Support
Specifications
| Specification | K0948 |
|---|---|
| Battery Configuration | 2× BigBattery ETHOS |
| Total Capacity | 10.24kWh |
| System Voltage | 48V |
| Nominal Voltage | 51.2V |
| Battery Chemistry | LiFePO4 |
| Ah Capacity | 200Ah |
| Charging Voltage Range | 55.6–57V |
| Maximum Charge Voltage | 57V |
| Operating Voltage Range | 48–57V |
| Suggested Low Voltage Cutoff | 48–50.8V |
| BMS Cutoff Range | 42–47V |
| Cell Configuration | 16S |
| Maximum Continuous Discharge Current | 200A |
| Maximum Continuous Power | 10,240W |
| Maximum Discharge Peak Current | 300A, max. 5 seconds |
| Maximum Charge Current | 200A |
| Charge Temperature Range | 32°F–113°F (0°C–45°C) |
| Discharge Temperature Range | -4°F–140°F (-20°C–60°C) |
| Optimal Discharge Temperature Range | 59°F–95°F (15°C–35°C) |
| Storage Temperature Range, SoC >50% | -4°F–113°F (-20°C–45°C), max. 6 months |
| Weight | 273 lb (123.8 kg) |
| Depth | 6.7 in (170 mm) |
| Width | 26.5 in (674 mm) |
| Height | 43.3 in (1100 mm) |
| Maximum Connections | Up to 16 parallel connections per control box |
| Protection Rating | IP65 / NEMA 4X |
| Communications | CANBus / RS485 |
| Certifications | UL9540, UL9540A, UL1973 & UN38.3 |
| Warranty | 12 Years |
What’s In The Box?
- 2× BigBattery ETHOS battery modules
FAQs
Q: How much energy storage does the K0948 ETHOS system provide?
A: The two-module K0948 configuration provides 10.24kWh of total battery capacity and 200Ah capacity.
Q: What battery chemistry does the ETHOS use?
A: The ETHOS uses LiFePO4 lithium battery chemistry.
Q: Can the BigBattery ETHOS system be expanded?
A: Yes. The ETHOS is a modular system designed to allow additional capacity to be added. The system supports up to 16 parallel connections per control box.
Q: Can the ETHOS battery system be installed outdoors?
A: The system has an IP65 / NEMA 4X protection rating and is described as suitable for both outdoor and indoor setups.
Q: What inverters support closed-loop communication with ETHOS?
A: For UL9540-certified grid-tied applications, the page lists the EG4 18kPV, EG4 FlexBoss18, and EG4 FlexBoss21. For off-grid non-UL9540 installations, it lists all BigBattery APEX inverters and all EG4 inverters.
Warranty
BigBattery backs the ETHOS battery with a 12-year warranty. The product also includes lifetime USA-based technical support.
