Description BigBattery’s 48V ETHOS is transforming home energy solutions.The newly launched ETHOS battery system offers a fully modular and stackable design, complete with a dedicated control box, an advanced LED status display, and an integrated mounting setup for easy installation. Whether you're securing emergency backup power for your cabin or tiny home, or upgrading your residential property with a reliable solar battery storage system, the ETHOS delivers dependable and efficient energy year-round. With a cutting-edge battery management system (BMS) that includes automatic cell balancing, an IP65-rated enclosure, and built-in fire suppression, the ETHOS is built for lasting safety and resilience in all environments. Stay informed on your system's performance with the interactive LED interface, along with CANBus and RS485 communication options for real-time power monitoring. The ETHOS is engineered for both reliability and user-friendly diagnostics, making it ideal for off-grid power setups and whole-home energy storage. The ETHOS is available in two scalable configurations—2-stack (10.24 kWh) and 3-stack (15.36 kWh)—with future expandability to meet growing energy demands. Upgrade your home energy system with the powerful, efficient 48V ETHOS battery—now available. Designed For 48V Applications RESIDENTIAL POWER SYSTEMS HOME SOLAR SYSTEMS CABINS & TINY HOMES FAMILY HOMES & MANSIONS OFF-GRID HOMESTEADS EMERGENCY POWER WHOLE HOME BACKUP LEAD ACID REPLACEMENT What's in the Box 2 × 48V ETHOS 5.12kWh Stackable Battery Module 1 × ETHOS Control Box 1 × 10kWh Ethos Controller to Battery Power Cable 31.5" inch (800mm) Specifications Battery Voltage: 48V Configurations Available: 2-stack (10.24 kWh) / 3-stack (15.36 kWh) Design: Modular, stackable BMS: Advanced with auto cell balancing Display: Full-featured LED display Enclosure: IP65-rated Fire Protection: Integrated fire suppression system Communication: CANBus / RS485 Mounting System: Included Expansion: System expandable for future scalability Tech Specs 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 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 / NEMA 4X Communications: CANBus / RS485 Certifications: UL9540A, UL1973, & UN38.3 Downloads Spec Sheet Download User Manual Download UL1973 Certification Download Safety Data Sheet Download Video
