Big Battery | 48V ETHOS | 5.12kWh Stackable | Battery Module
Overview
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 |
Are Solar Guys Pro Authorized Retailers?
Yes! We are proud to be one of the few online retailers who are authorized retailers for every single product we carry!
When Will My Order Ship?
Most orders ship within 1–3 business days. You’ll get a tracking number as soon as it ships via email!
Do We Accept Returns?
Yes absolutely, we have a no-hassle, 30-day return policy on all items! To refer to the full policy, click HERE
Are Products Brand New?
Yes! All products on Solar Guys Pro are 100% brand-new and in perfect condition.
We do not sell any used or refurbished items.
Orders over $500 include a FREE (Normally $149.99) 80-Page DIY Solar eBook — added automatically at checkout.
Frequently Asked Questions
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