BigBattery 48V ETHOS 5.12kWh Stackable Battery (1 Module)
The BigBattery 48V ETHOS 5.12kWh Stackable Battery (1 Module) is a modular energy storage solution designed for grid-tied residential power systems, solar installations, remote off-grid sites, and small commercial applications. Each 5.12kWh module serves as a scalable building block, enabling expansion up to 80kWh per ETHOS Control Box while preserving a consistent 48V system architecture.
Performance specifications include a 5.12kWh capacity integrated with a 100Ah cell bank (16S). Nominal voltage is 51.2V with a 48V system voltage; charging voltage range 55.6–57V; max charge current 100A; max continuous discharge current 100A; continuous power 5,120W; discharge peak current 150A for up to 5 seconds. Operating voltage spans 48–57V; temperature ranges cover charging 0–45°C, discharging -20–60°C, and storage (SoC>50%) -20–45°C for up to six months.
Safety and certifications: Tier 1 LiFePO4 cells provide inherent thermal stability and long cycle life. A built-in fire-extinguishing module enhances safety during abnormal conditions. The system relies on a modern BMS for real-time monitoring of voltage, current, and temperature. Hardware connectivity uses UL-certified connectors with CANBus and RS485 communications. The unit carries UL9540a, UL1973, and UN38.3 certifications and an IP65-rated enclosure.
Installation and maintenance: The module is designed for integration with the ETHOS Control Box and supports up to 16 parallel connections per control box. All power connections employ UL-certified connectors; sealing and protection conform to IP65 for use in exposed environments. Follow the applicable UL and UN guidelines when wiring, and Download the latest spec sheet for detailed installation steps and commissioning procedures.
BigBattery 48V ETHOS 5.12kWh Stackable Battery (1 Module)
Welcome to the forefront of energy storage innovation with the BigBattery 48V ETHOS systems. These 5.12kWh battery modules form the backbone of adaptable power solutions suitable for a wide range of applications, including grid-tied residences, solar installations, remote off-grid locations, and commercial establishments across the country. Featuring Tier 1 LiFePO4 cells, renowned for their safety and durability, and offering scalability up to 80kWh per Control Box, the ETHOS system sets a new standard for dependable energy storage solutions.
- Scalable Power: 5.12kWh modules, expandable up to 80kWh per ETHOS Control Box.
- Safety First: Tier 1 LiFePO4 cells and built-in fire-extinguishing modules ensure maximum safety.
- Smart Monitoring: Advanced BMS technology provides real-time monitoring of voltage, current, and temperature.
- Reliable Connectivity: UL-certified connectors ensure secure and reliable power connections.
- Durable Design: IP65-rated casing protects against the elements for long-lasting reliability.
- Versatile Applications: Ideal for emergency backup or as part of a solar energy system.
SKU: FETHS-48051-G1
| KU: | FETHS-48051-G1 |
| GTIN-12 (U.P.C.): | 850061252067 |
| System Voltage: | 48V |
| Nominal Voltage: | 51.2V |
| Chemistry: | LiFePO4 |
| kWh Capacity: | 5.12kWh |
| Ah Capacity: | 100Ah |
| Charging Voltage Range: | 55.6 - 57V |
| Max Charge Voltage: | 57V |
| Operating Voltage Range: | 48 – 57V |
| Suggested Low Voltage Cutoff: | 48 – 50.8V |
| Cell Configuration: | 16S |
| Max Continuous Discharge Current: | 100A |
| Max Continuous Power: | 5120W |
| Max Discharge Peak Current: | 150A (Max 5 seconds) |
| Max Charge Current: | 100A |
| 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) |
| Depth: | 6.7 in (170 mm) |
| Width: | 26.5 in (674 mm) |
| Height: | 16.5 in (419 mm) |
| Max Connections: | Up to (16) parallel connections per control box |
| Protection Rating: | IP65 |
| Communications: | CANBus / RS485 |
| Certifications: | UL9540a, UL1973, & UN38.3 |
Designed For:
- 48V Applications
- Residential Power Systems
- Home Solar Systems
- UL-Certified ESS
- Cabins & Tiny Homes
- Family Homes & Mansions
- Off-Grid Homesteads
- Emergency Power
- Whole Home Backup
- Lead Acid Replacement
- Intense Heat & Cold
Manual: Download
| KU: | FETHS-48051-G1 |
| GTIN-12 (U.P.C.): | 850061252067 |
| System Voltage: | 48V |
| Nominal Voltage: | 51.2V |
| Chemistry: | LiFePO4 |
| kWh Capacity: | 5.12kWh |
| Ah Capacity: | 100Ah |
| Charging Voltage Range: | 55.6 - 57V |
| Max Charge Voltage: | 57V |
| Operating Voltage Range: | 48 – 57V |
| Suggested Low Voltage Cutoff: | 48 – 50.8V |
| Cell Configuration: | 16S |
| Max Continuous Discharge Current: | 100A |
| Max Continuous Power: | 5120W |
| Max Discharge Peak Current: | 150A (Max 5 seconds) |
| Max Charge Current: | 100A |
| 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) |
| Depth: | 6.7 in (170 mm) |
| Width: | 26.5 in (674 mm) |
| Height: | 16.5 in (419 mm) |
| Max Connections: | Up to (16) parallel connections per control box |
| Protection Rating: | IP65 |
| Communications: | CANBus / RS485 |
| Certifications: | UL9540a, UL1973, & UN38.3 |