BigBattery ETHOS 10.2KWh (2-Module) 48V Stackable Power Storage System
The 48V ETHOS is a modular, stackable energy storage solution designed for residential power systems, home solar integration, emergency backup, cabins, and tiny homes. This two-module configuration yields 10.24 kWh of usable capacity with a path to 15.36 kWh in a 3-stack setup, all managed through a dedicated ETHOS Control Box.
Key specifications
- System Voltage: 48V; Nominal: 51.2V; Chemistry: LiFePO4
- kWh/Ah: 10.24 kWh / 200 Ah
- Charging Voltage Range: 55.6–57V; Max Charge Current: 200A
- Max Continuous Discharge: 200A; Max Discharge Power: 10.24 kW
- Discharge Peak: 300A (5 s); Operating Range: 48–57V
- Low-Voltage Cutoff: 48–50.8V; BMS Cutoff: 42–47V
- Cell Configuration: 16S2P; Temps (charge/discharge): 32°F–113°F / -4°F–140°F
- Storage (SoC >50%): -4°F–113°F up to 6 months
- Weight/Dimensions: 123.8 kg; 170 mm D; 674 mm W; 1100 mm H
- Protection: IP65; CANBus/RS485; Parallel connections up to 16 per control box
- Certifications: UL9540, UL9540a, UL1973, UN38.3, CE
Safety, monitoring and expansion
Integrated intelligent BMS with auto-cell balancing and a full LED display enable clear health monitoring. The IP65 enclosure ensures durability in varied environments, while CANBus/RS485 supports seamless integration with inverters and energy management systems. Available in 2-stack (10.24 kWh) and 3-stack (15.36 kWh) configurations for scalable growth.
Installation and maintenance
Install with the included ETHOS Control Box and mounting system for 48V residential or off-grid applications. Maintain by inspecting terminations and ensuring operation within specified voltage and temperature windows; expansion is achieved by adding modules while maintaining the 16S2P per control box architecture.
What’s included
- 2 × 48V ETHOS 5.12kWh Stackable Battery Modules
- 1 × ETHOS Control Box
- 1 × 10kWh Ethos Controller-to-Battery Power Cable (31.5" / 800 mm)
BigBattery ETHOS 10.2KWH (2 Module)
STACKABLE POWER STORAGE! BigBattery’s 48V ETHOS is here to revolutionize your home’s power. Our all new ETHOS battery system features a fully stackable and modular design, equipped with its own control box, in-depth LED display, and mounting system.
Whether you’re looking to ensure emergency backup power is available in your cabin or tiny home, or you’re looking to outfit your residential home with a powerful solar system, the ETHOS ensures reliable, efficient power delivery through every season. Equipped with an intelligent BMS featuring an auto-cell balancing function, as well as an IP65-rated casing, the ETHOS ensures long-lasting safety and durability. Plus, with its interactive LED display and CANBus/RS485 communication protocols, you’re always able to monitor the health and status of your power. The ETHOS is certified to the highest level, including UN9540, UL1973, and CE certifications, affording the ability to grid-tie your power system and capitalize on net-metering programs and other tax incentives.
The ETHOS is now available in 2-stack (10.24 kWh) and 3-stack (15.36 kWh) configurations, with the ability to expand upon your ETHOS system as needed. It’s time to take your home’s power to the next level! Shop the all-new 48V ETHOS today!
Designed For 48V Applications
Product Specifications
BigBattery ETHOS 10.2KWH (2 Module) Product Specifications
| System Voltage: | 48V |
| Nominal Voltage: | 51.2V |
| Chemistry: | LiFePO4 |
| kWh Capacity: | 10.24kWh |
| Ah Capacity: | 200Ah |
| Charging Voltage Range: | 55.6 - 57V |
| Max Charge Voltage: | 57V |
| Operating Voltage Range: | 48 – 57V |
| Suggested Low Voltage Cutoff: | 48 – 50.8V |
| BMS Cutoff Range: | 42 - 47V |
| Cell Configuration: | 16S 2P |
| Max Continuous Discharge Current: | 200A |
| Max Continuous Power: | 10240W |
| 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) |
| Weight: | 273 lb (123.8 kg) |
| Depth: | 6.7 in (170 mm) |
| Width: | 26.5 in (674 mm) |
| Height: | 43.3 in (1100 mm) |
| Max Connections: | Up to (16) parallel connections per control box |
| Protection Rating: | IP65 |
| Communications: | CANBus / RS485 |
| Certifications: | UL9540, UL9540a, UL1973, UN38.3, & CE |
What's included
- 2 × 48V ETHOS 5.12kWh Stackable Battery Module
- 1 × ETHOS Control Box
- 1 × 10kWh Ethos Controller to Battery Power Cable 31.5" inch (800mm)
Product Manual
| Spec Sheet Download: | Click Here |
| Safety Data Sheet Download: | Click Here |
| System Voltage: | 48V |
| Nominal Voltage: | 51.2V |
| Chemistry: | LiFePO4 |
| kWh Capacity: | 10.24kWh |
| Ah Capacity: | 200Ah |
| Charging Voltage Range: | 55.6 - 57V |
| Max Charge Voltage: | 57V |
| Operating Voltage Range: | 48 – 57V |
| Suggested Low Voltage Cutoff: | 48 – 50.8V |
| BMS Cutoff Range: | 42 - 47V |
| Cell Configuration: | 16S 2P |
| Max Continuous Discharge Current: | 200A |
| Max Continuous Power: | 10240W |
| 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) |
| Weight: | 273 lb (123.8 kg) |
| Depth: | 6.7 in (170 mm) |
| Width: | 26.5 in (674 mm) |
| Height: | 43.3 in (1100 mm) |
| Max Connections: | Up to (16) parallel connections per control box |
| Protection Rating: | IP65 |
| Communications: | CANBus / RS485 |
| Certifications: | UL9540, UL9540a, UL1973, UN38.3, & CE |
| Spec Sheet Download: | Click Here |
| Safety Data Sheet Download: | Click Here |