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 Pre-Configured 2-Module Stack: Combines two Ethos 5.12 kWh batteries for 10.24 kWh of total capacity. Safe LiFePO₄ Chemistry: Superior thermal stability, long cycle life, and reliable discharge curves. High Power Capability: Continuous discharge up to 200 A and peak current up to 300 A (≤ 5 sec). Weather-Sealed Design: IP65-rated housing allows flexible indoor or semi-outdoor installation. 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: (2) FETHS-48051-G1 – 5.12 kWh Ethos Battery Modules and Accessories Included in Each Battery Box: (1) Ethos Battery Module Red & Black Parallel Cable 0.7 ft (220 mm) (1) Ethos Battery Module Communication Cable 0.7 ft (220 mm) (2) L-Shaped Wall Mounting Brackets + Fasteners Additional Items: Ethos Control Box with Included Accessories (1) CBL088 – Ethos Battery Final Module-to-Control Box Power Cable Pair (2 Stack) 31.5 in (800 mm) Applications Residential solar energy storage and backup Off-grid power and remote locations Commercial load-shifting and time-of-use management Scalable microgrids and hybrid energy systems
