Description
Introducing the Ethos 10.2 kWh Stackable Battery System, a dual-module configuration that combines two 5.12 kWh Ethos LiFePO₄ batteries into a seamless energy-storage unit. Engineered for performance, scalability, and reliability, this pre-configured stack delivers 10.24 kWh of clean energy capacity — ideal for residential solar setups, off-grid cabins, and small commercial installations.
Key Features
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Pre-Configured 2-Module Stack: Combines two Ethos 5.12 kWh batteries for 10.24 kWh of total capacity.
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Safe LiFePO₄ Chemistry: Superior thermal stability, long cycle life, and reliable discharge curves.
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High Power Capability: Continuous discharge up to 200 A and peak current up to 300 A (≤ 5 sec).
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Weather-Sealed Design: IP65-rated housing allows flexible indoor or semi-outdoor installation.
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Integrated Control Box & BMS: Streamlined power management, communication, and protection.
Product Overview
The Ethos 10.2 kWh Stackable Battery System pairs two Ethos 51.2 V 100 Ah modules in parallel, doubling usable capacity while maintaining the same 51.2 V operating voltage. Each module is built with high-grade LiFePO₄ cells and an intelligent Battery Management System (BMS) that continuously monitors voltage, temperature, and current for optimal performance and safety.
Its stackable architecture lets you start small and expand easily — the 2-module stack can be scaled up to 10 modules in total, reaching over 50 kWh of storage for larger systems. Designed for integration with hybrid inverters and solar controllers, it provides a plug-and-play foundation for energy storage, backup power, or self-consumption applications.
Built for longevity, each Ethos module offers 4,000 to 8,000 charge cycles at 80 % depth of discharge and a 10-year design life. With its rugged IP65 enclosure, high efficiency (≥ 95 %), and compliance with UL and UN certifications, the system delivers both performance and peace of mind.
Technical Specifications
| Specification | Details |
|---|---|
| Configuration | 2 × Ethos 5.12 kWh Modules |
| Nominal Voltage | 51.2 V |
| System Voltage | 48 V nominal |
| Total Capacity | 10.24 kWh (200 Ah) |
| Cell Configuration | 16S × 2P |
| Charging Voltage Range | 55.6 – 57 V |
| Max Charge Voltage | 57 V |
| Operating Voltage Range | 48 – 57 V |
| Suggested Low Voltage Cutoff | 48 – 50.8 V |
| Continuous Discharge Current | 200 A |
| Peak Discharge Current | 300 A (≤ 5 seconds) |
| Max Charge Current | 200 A |
| Round-Trip Efficiency | ≥ 95 % |
| Chemistry | Lithium Iron Phosphate (LiFePO₄) |
| Cycle Life | 4,000 – 8,000 cycles @ 80 % DoD |
| Communication | CANBus / RS485 |
| Enclosure Rating | IP65 |
| Operating Temp | Charge: 0 – 45 °C / Discharge: –20 – 60 °C |
| Storage Temp | –20 – 45 °C (SOC > 50 %) |
| Dimensions (per module) | 170 × 674 × 419 mm (6.7 × 26.5 × 16.5 in) |
| Weight (per module) | ≈ 45 – 50 kg (99 – 110 lbs) |
| Certifications | UL9540A, UL1973, UN38.3 |
| Design Life / Warranty | 10 + years / 10 years |
Included in Kit
ETHOS 10.2 kWh (2 Module)
Included in Kit:
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(2) FETHS-48051-G1 – 5.12 kWh Ethos Battery Modules and Accessories
Included in Each Battery Box:
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(1) Ethos Battery Module Red & Black Parallel Cable 0.7 ft (220 mm)
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(1) Ethos Battery Module Communication Cable 0.7 ft (220 mm)
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(2) L-Shaped Wall Mounting Brackets + Fasteners
Additional Items:
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Ethos Control Box with Included Accessories
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(1) CBL088 – Ethos Battery Final Module-to-Control Box Power Cable Pair (2 Stack) 31.5 in (800 mm)
Applications
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Residential solar energy storage and backup
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Off-grid power and remote locations
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Commercial load-shifting and time-of-use management
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Scalable microgrids and hybrid energy systems
Specs & Info