Welcome to the forefront of energy storage innovation with the BigBattery 48V ETHOS systems. These 5.12kWh battery modules (15.3kWh – 3 module) 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.
Designed for:
- 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
BigBattery 48V ETHOS 15.3KWH (3 Module) Includes: 
- 1 √ó ETHOS Control Box
- 3 √ó 48V ETHOS 5.12kWh Stackable Battery Module
- 1 √ó 15kWh Ethos Controller to Battery Power Cable 4ft (1220mm)
3 Stack Specs: 
 SKU: |  BNDL-B0007 |
 System Voltage: |  48V |
 Nominal Voltage: |  51.2V |
 Chemistry: |  LiFePO4 |
 kWh Capacity: |  15.36kWh |
 Ah Capacity: |  300Ah |
¬†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 3P |
 Max Continuous Discharge Current: |  250A |
 Max Continuous Power: |  12800W |
 Max Discharge Peak Current: |  300A (Max 5 seconds) |
 Max 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) |
 Depth: |  6.7 in (170 mm) |
 Width: |  26.5 in (674 mm) |
 Height: |  59.8 in (1520 mm) |
 Max Connections: |  Up to (16) parallel connections per control box |
 Protection Rating: |  IP65 |
 Communications: |  CANBus / RS485 |
 Certifications: |  UL9540, UL9540a, UL1973, & UN38.3 |