BigBattery ETHOS 48 5.12kWh - Home Battery Backup
Power your home with confidence using the BigBattery 48V ETHOS 5.12kWh Battery Module — the foundational building block of the modular ETHOS energy storage system. Whether you're building a whole-home backup solution, an off-grid solar setup, or expanding existing storage, the ETHOS delivers efficiency, safety, and long-term scalability.
Each module provides 5.12kWh (100Ah) of ultra-safe LiFePO₄ storage and supports stackable expansion up to 80kWh per Control Box. Designed for both grid-tied and off-grid applications, it’s ideal for residential homes, cabins, commercial offices, and emergency backup systems.
Built with Tier 1 lithium iron phosphate cells and housed in a rugged IP65-rated enclosure, the ETHOS is engineered for durability and outdoor installation. The integrated Battery Management System (BMS) continuously monitors voltage, current, and temperature while providing passive cell balancing and built-in fire suppression.
With 4,000–8,000 life cycles at 80% depth of discharge and a lifespan of 10+ years, the ETHOS module offers dependable, long-term energy storage for evolving power needs.
Key Features:
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Battery Capacity: 5.12kWh (100Ah)
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Voltage: 48V
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Battery Chemistry: LiFePO₄ (Lithium Iron Phosphate)
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Scalability: Expandable up to 80kWh per Control Box
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Cycle Life: 4,000–8,000 cycles @ 80% DOD (0.5C rate)
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BMS: Advanced monitoring with passive cell balancing
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Safety: Built-in fire suppression module
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Enclosure: IP65-rated, weather-resistant, maintenance-free
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Connectors: UL-certified ESS-standardized connectors
Perfect For:
- Whole Home Backup
- Grid-Tied & Off-Grid Solar Installations
- Cabins, Tiny Homes & Homesteads
- Emergency Power Systems
- Lead Acid Battery Replacement
- Residential & Commercial Energy Storage
- Harsh Environments (Heat or Cold)
What’s Included:
- 1 × 48V ETHOS 5.12kWh Stackable Battery Module
- 1 × Battery Communication Cable
- 1 × Battery-to-Battery Power Parallel Cable
- Mounting Brackets & Hardware