BigBattery 48V 10.24kWh ETHOS 2X Expansion Kit – Modular Battery Add-On
Upgrade your power capacity with the BigBattery 48V ETHOS 2x Expansion Kit, the perfect modular solution for expanding your existing ETHOS energy storage system. Delivering an additional 10.24kWh of safe and reliable LiFePO₄ storage, this expansion pack allows you to tailor your power setup to meet growing energy demands in your home, cabin, or commercial space.
This kit includes two 5.12kWh ETHOS battery modules, a rack base, and all necessary power and communication cables for seamless integration into your current ETHOS system. Designed for plug-and-play expandability, these modules connect directly to your existing ETHOS Control Box (supports up to 16 batteries per controller), allowing you to increase storage without overhauling your system.
Built with Tier 1 lithium iron phosphate cells, every ETHOS module features an advanced BMS, passive cell balancing, integrated fire suppression, and an IP65-rated enclosure for maximum protection and longevity. Whether you’re expanding to prepare for longer outages or optimizing your solar energy storage, this kit delivers the flexibility and performance your setup needs.
Note: This is an expansion kit only. A Control Box is required for operation and is not included.
Key Features:
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Total Capacity: 10.24kWh (2 × 5.12kWh ETHOS Modules)
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Voltage: 48V
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Battery Chemistry: LiFePO₄ (Lithium Iron Phosphate)
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Modular Design: Stackable and parallel-connectable (up to 16 modules per Control Box)
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Advanced BMS: Cell balancing, thermal monitoring, and real-time data
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Fire Safety: Integrated fire suppression system
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Enclosure: IP65-rated, wall-mountable, maintenance-free
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Plug-and-Play Expandability: Includes cables and rack base for easy integration
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Long Lifespan: 4000–8000 cycles @ 80% DoD
Ideal For:
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Residential Power Systems
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Home Solar Installations
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Off-Grid Cabins & Tiny Homes
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Emergency Power Backup
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Whole Home or Business Energy Storage
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Lead-Acid Battery Replacement
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Grid-Tied Net Metering Solutions
What’s Included:
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2 × 48V ETHOS 5.12kWh Stackable Battery Modules – FETHS-48051-G1
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1 × ETHOS Rack Base – CNT081
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2 × 4.9 ft ETHOS Parallel Power Cables – CBL089
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1 × 4.9 ft ETHOS Parallel Communication Cable – CBL096
Specifications
Why Buy From Us
Why Buy From Ecogrid Supply?
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Built for Energy Independence: Whether you’re powering a cabin, prepping for emergencies, or going off-grid, our products are selected for performance, reliability, and sustainable operation.
Buying Guide
