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Big Battery | 48V ETHOS | 5.12kWh Stackable | Battery Module (BACKORDER)

SKU FETHS-48051-G1
Original price $1,740.00 - Original price $1,740.00
Original price
$1,740.00
$1,740.00 - $1,740.00
Current price $1,740.00

Overview

THIS PRODUCT IS IN HIGH DEMAND AND CURRENTLY ON BACKORDER! SECURE YOURS NOW TO BE FIRST IN LINE FOR THE DECEMBER 10 RESTOCK!

REVOLUTIONIZING RESIDENTIAL ENERGY STORAGE! Introducing the BigBattery 48V ETHOS system—an innovative, stackable, and scalable solution designed to power your home, solar setup, off-grid homestead, or commercial space. This 5.12kWh battery module is the foundation of the ETHOS system, built to expand up to 80kWh per control box by adding additional modules.

Each module features Tier 1 LiFePO4 cells, the safest and most durable lithium chemistry available today. With 100Ah capacity per module, the ETHOS is designed for long-lasting performance, providing over 4,000–8,000 cycles at 80% Depth of Discharge (DOD). The system's advanced Battery Management System (BMS) continuously monitors voltage, current, and temperature, while passive cell balancing and an advanced battery control method optimize performance. For added peace of mind, each module is equipped with an integrated fire-extinguishing system.

Designed for easy expansion, the ETHOS is a modular and stackable solution, ideal for residential and commercial applications. The system features standardized, UL-certified ESS connectors, ensuring safe, reliable connections. With an IP65-rated casing, it provides all-weather protection and maximum durability.

Whether you’re planning for emergency backup power or seeking a sustainable energy solution for your home or cabin, the ETHOS offers reliable, efficient power for any need. Installation is easy, with all hardware included for mounting, and each system is built to last over 10 years.

Key Features:

  • Capacity: 5.12kWh per module, expandable up to 80kWh
  • LiFePO4 Cells for optimal safety and longevity
  • 100Ah per module, designed for over 4,000–8,000 cycles at 80% DOD
  • Advanced BMS for continuous monitoring and optimization
  • Fire-extinguishing module for enhanced safety
  • Modular, Stackable Design for easy scalability
  • IP65-Rated Enclosure for durability in all weather conditions
  • UL-Certified ESS Connectors for reliable power connections
  • Easy Wall-Mount Installation with included hardware

Take control of your energy needs today with the 48V ETHOS—designed for reliability, efficiency, and maximum flexibility. Explore the ETHOS system or contact us for a custom quote to perfectly match your energy requirements!

What's Included

Specification

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
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USA Based Tech & Customer Support Got a question? Speak to our USA based tech & customer support team: 571-350-0146
#1 DIY Solar Authorized Retailer
Fast & Safe Shipping
Sales Tax Free
Authorized Dealer Warranty