Big Battery 48V Ethos 5.12kWh Stackable Battery Module with Kit Options The BigBattery 48V ETHOS systems are here, and this 5.12kWh battery module is the building block for these stackable, scalable power systems. Our ETHOS systems are designed for every grid-tied home, solar setup, off-grid homestead, and commercial office in America. Each battery module is equipped with Tier 1 LiFePO4 cells, the safest chemistry on the market today, and has a capacity of 100Ah, with each ETHOS System being expandable up to 80kWh per Control Box simply by adding additional battery modules. Each module is also equipped with an advanced Battery Management System (BMS) that continuously monitors and records cell voltage, along with real-time data on current, voltage, and temperature for the module. The BMS features a passive cell balancing function and an advanced battery control method, which collectively enhance battery pack performance. Furthermore, the battery includes a built-in fire-extinguishing module for unmatched peace of mind. These modules utilize standardized UL-certified ESS connectors, which safely and reliably secure power to and from the battery. Designed to endure the test of time, the ETHOS has a lifespan of over 10 years and is engineered to withstand more than 4000 – 8000 cycles at 80% Depth of Discharge (DOD) at a rate of 0.5C. Our ETHOS Systems were built to be versatile on or off-grid power solutions, with a stackable, modular design for easy expandability, and all hardware included to mount your ETHOS to your wall with an effortless installation. Plus, the ETHOS comes equipped with an IP65-rated casing, to ensure long-lasting reliability and protection. Whether you’re looking to ensure emergency backup power is always available, or you’re looking to outfit your family home, cabin, or homestead with a powerful solar system, the ETHOS ensures reliable, efficient power delivery day in and day out. Take control of your home’s power and shop the 48V ETHOS today, or get in touch with us to get a quote on a custom-built ETHOS system to precisely meet your power needs. DESIGNED FOR 48V APPLICATIONS: RESIDENTIAL POWER SYSTEMS HOME SOLAR SYSTEMS UL-CERTIFIED ESS CABINS & TINY HOMES FAMILY HOMES & MANSIONS OFF-GRID HOMESTEADS EMERGENCY POWER WHOLE HOME BACKUP LEAD ACID REPLACEMENT INTENSE HEAT & COLD INCLUDES: 48V Ethos - 5.12kWh 1 x 48V Ethos 5.12kWh Stackable Battery Module (FETHS-48051-G1) 1 x Ethos Parallel Comm Cable 4.9 ft (150cm) (CBL096) 1 x Ethos Parallel Power Cable 4.9 ft (1500mm) (CBL089) L-Mounting Brackets Mounting Screws 48V Ethos (2 Module) - 10.2kWh 2 x 48V Ethos 5.12kWh Stackable Battery Module (FETHS-48051-G1) 1 x Ethos Control Box (CNT060) 1 x 10kWh Ethos Controller to Battery Power Cable 31.5" inch (800mm) (CBL088) 48V Ethos (3 Module) - 15.3kWh 3 x 48V Ethos 5.12kWh Stackable Battery Module (FETHS-48051-G1) 1 x Ethos Control Box (CNT060) 1 x 15kWh Ethos Controller to Battery Power Cable 4 ft (1220mm) (CBL091) 48V Ethos (4 Module) - 20.4kWh 4 x 48V Ethos 5.12kWh Stackable Battery Module (FETHS-48051-G1) 1 x Ethos Control Box (CNT060) 1 x Ethos Rack Base (CNT081) 2 x Ethos Parallel Power Cable 4.9 ft (1500mm) (CBL089) 1 x Ethos Parallel Comm Cable 4.9 ft (150cm) (CBL096) 48V Ethos (6 Module) - 30.7kWh 6 x 48V Ethos 5.12kWh Stackable Battery Module (FETHS-48051-G1) 1 x Ethos Control Box (CNT060) 1 x Ethos Rack Base (CNT081) 2 x Ethos Parallel Power Cable 4.9 ft (1500mm) (CBL089) 1 x Ethos Parallel Comm Cable 4.9 ft (150cm) (CBL096) 48V Ethos 2x Expansion Kit - 10.2kWh 2 x 48V Ethos 5.12kWh Stackable Battery Module (FETHS-48051-G1) 1 x Ethos Rack Base (CNT081) 2 x Ethos Parallel Power Cable 4.9 ft (1500mm) (CBL089) 1 x Ethos Parallel Comm Cable 4.9 ft (150cm) (CBL096) 48V Ethos 3x Expansion Kit - 15.3kWh 3 x 48V Ethos 5.12kWh Stackable Battery Module (FETHS-48051-G1) 1 x Ethos Rack Base (CNT081) 2 x Ethos Parallel Power Cable 4.9 ft (1500mm) (CBL089) 1 x Ethos Parallel Comm Cable 4.9 ft (150cm) (CBL096) SPECIFICATIONS: Single Module Tech Specs SKU: FETHS-48051-G1 GTIN-12 (U.P.C.): 850061252067 System Voltage: 48V Nominal Voltage: 51.2V Chemistry: LiFePO4 kWh Capacity: 5.12kWh Ah Capacity: 100Ah Charging Voltage Range: 55.6 - 57V Max Charge Voltage: 57V Operating Voltage Range: 48 – 57V Suggested Low Voltage Cutoff: 48 – 50.8V Cell Configuration: 16S Max Continuous Discharge Current: 100A Max Continuous Power: 5120W Max Discharge Peak Current: 150A (Max 5 seconds) Max Charge Current: 100A Charge Temperature Range: 32°F - 113°F (0°C - 45°C) Discharge Temperature Range: -4°F - 140°F (-20°C - 60°C) Optimal Discharge Temperature Range: 59°F - 95°F (15°C - 35°C) Storage Temperature Range (SoC >50%): -4°F - 113°F (-20°C - 45°C) (Max 6 months) Depth: 6.7 in (170 mm) Width: 26.5 in (674 mm) Height: 16.5 in (419 mm) Max Connections: Up to (16) parallel connections per control box Protection Rating: IP65 Communications: CANBus / RS485 Certifications: UL9540a, UL1973, & UN38.3 KIT SPECIFICATIONS 48V Ethos (2 Module) - 10.2kWh SKU: K0949 GTIN-12 (U.P.C.): 850061252074 System Voltage: 48V Nominal Voltage: 51.2V Chemistry: LiFePO4 kWh Capacity: 10.24kWh Ah Capacity: 200Ah Charging Voltage Range: 55.6 – 57V Max Charge Voltage: 57V Operating Voltage Range: 48 – 57V Suggested Low Voltage Cutoff: 48 – 50.8V Cell Configuration: 16S 2P Max Continuous Discharge Current: 200A Max Continuous Power: 10240W Max Discharge Peak Current: 300A (Max 5 seconds) Max Charge Current: 200A Charge Temperature Range: 32°F – 113°F (0°C – 45°C) Discharge Temperature Range: -4°F – 140°F (-20°C – 60°C) Optimal Discharge Temperature Range: 59°F – 95°F (15°C – 35°C) Storage Temperature Range (SoC >50%): -4°F – 113°F (-20°C – 45°C) (Max 6 months) Weight: 273 lb (123.8 kg) Depth: 6.7 in (170 mm) Width: 26.5 in (674 mm) Height: 43.3 in (1100 mm) Max Connections: Up to (16) parallel connections per control box Protection Rating: IP65 / NEMA 4X Communications: CANBus / RS485 Certifications: UL9540A, UL1973, & UN38.3 Spec Sheet Download: Click Here User Manual Download: Click Here UL1973 Certification Download: Click Here Safety Data Sheet Download: Click Here 48V Ethos (3 Module) - 15.3kWh SKU: K0950 GTIN-12 (U.P.C.): 850061252166 System Voltage: 48V Nominal Voltage: 51.2V Chemistry: LiFePO4 kWh Capacity: 15.36kWh Ah Capacity: 300Ah Charging Voltage Range: 55.6 – 57V Max Charge Voltage: 57V Operating Voltage Range: 48 – 57V Suggested Low Voltage Cutoff: 48 – 50.8V Cell Configuration: 16S 3P Max Continuous Discharge Current: 250A Max Continuous Power: 12800W Max Discharge Peak Current: 300A (Max 5 seconds) Max Charge Current: 200A Charge Temperature Range: 32°F – 113°F (0°C – 45°C) Discharge Temperature Range: -4°F – 140°F (-20°C – 60°C) Optimal Discharge Temperature Range: 59°F – 95°F (15°C – 35°C) Storage Temperature Range (SoC >50%): -4°F – 113°F (-20°C – 45°C) (Max 6 months) Weight: 387 lb (175.5 kg) Depth: 6.7 in (170 mm) Width: 26.5 in (674 mm) Height: 59.8 in (1520 mm) Max Connections: Up to (16) parallel connections per control box Protection Rating: IP65 / NEMA 4X Communications: CANBus / RS485 Certifications: UL9540A, UL1973, & UN38.3 Spec Sheet Download: Click Here User Manual Download: Click Here UL1973 Certification Download: Click Here Safety Data Sheet Download: Click Here