Introducing the Ethos 51.2V 100Ah Stackable Battery Module, a compact, high-performance LiFePO₄ energy storage unit engineered for reliability, safety, and scalability. With a 5.12 kWh capacity, this battery provides flexible energy storage for residential, commercial, and off-grid systems. Designed with a robust IP65-rated enclosure and modular stackable structure, it delivers the perfect balance between efficiency and expandability. Key Features Stackable Modular Design: Build systems from 5.12 kWh up to 51.2 kWh simply by adding more modules. Advanced LiFePO₄ Chemistry: Stable, long-life lithium iron phosphate cells for superior safety. High Current Output: Supports up to 100 A continuous discharge and 150 A surge. Weatherproof Enclosure: IP65 protection against dust and moisture. Intelligent BMS Integration: Monitors voltage, current, and temperature for balanced performance. Product Overview The Ethos 51.2V 100Ah module is built for dependable, scalable energy storage. Using LiFePO₄ chemistry, it ensures exceptional safety, long cycle life, and consistent output under demanding conditions. The stackable configuration allows effortless expansion — start with a single 5.12 kWh battery and grow as your energy needs increase. A built-in Battery Management System (BMS) continuously monitors and balances cell voltages while protecting against overcharging, deep discharging, short circuits, and temperature extremes. Its passive balancing system enhances long-term efficiency, ensuring maximum usable capacity throughout its lifespan. Each module is protected by an IP65-rated aluminum housing, making it suitable for indoor or semi-outdoor installations. It is compatible with a wide range of hybrid and off-grid inverters, making integration into existing solar systems straightforward. With a design life of over 10 years and a cycle life between 4,000 and 8,000 cycles at 80% depth of discharge, Ethos delivers both longevity and reliability. Ideal for homes, cabins, commercial facilities, and microgrids, this module provides a durable and future-proof power foundation. Technical Specifications Specification Details Model FETHS-48051-G1 Nominal Voltage 51.2 V System Voltage 48 V nominal Capacity 100 Ah / 5.12 kWh Cell Configuration 16S (16 LiFePO₄ cells) Charging Voltage Range 55.6 V – 57 V Max Charge Voltage 57 V Operating Voltage Range 48 V – 57 V Low Voltage Cutoff 48 V – 50.8 V Maximum Continuous Discharge 100 A Peak Discharge Current 150 A (≤ 5 seconds) Maximum Charge Current 100 A Round-Trip Efficiency ≥ 95 % Chemistry Lithium Iron Phosphate (LiFePO₄) Cycle Life 4,000 – 8,000 cycles @ 80 % DOD Communication Protocols CANBus / RS485 Enclosure Rating IP65 (dust and water resistant) Charge Temperature Range 0 °C – 45 °C (32 °F – 113 °F) Discharge Temperature Range –20 °C – 60 °C (–4 °F – 140 °F) Storage Temperature (SoC > 50 %) –20 °C – 45 °C (–4 °F – 113 °F) for ≤ 6 months Dimensions (D × W × H) 170 mm × 674 mm × 419 mm (6.7 in × 26.5 in × 16.5 in) Weight ≈ 45 – 50 kg (99 – 110 lbs) Protection Features Over/under-voltage, over-current, short circuit, thermal cutoff Certifications UL9540A, UL1973, UN38.3 Design Life 10 + years Warranty 10 years Included in the 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 with Fasteners Applications Residential Solar & Backup Systems Off-Grid Power and Cabins Commercial Storage or Load-Shifting Renewable Microgrid Systems
