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Big Battery 48V ETHOS 30.7KWH (6 Module) Wall Mount Batteries Big Battery

Big Battery 48V ETHOS 30.7KWH (6 Module)

BY: Big Battery | SKU: K0953 Availability: In Stock
$12,450.00

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BigBattery 48V ETHOS 30.7kWh (6 Module)

The BigBattery 48V ETHOS 30.7kWh System delivers industrial-strength energy for homes, cabins, businesses, or off-grid power systems. Featuring six stackable 5.12kWh LiFePO4 modules, this robust system offers a total of 30.72kWh, making it a top-tier solution for whole-home backup, solar storage, or commercial energy needs. Designed for performance and safety, each module includes an advanced smart BMS, UL certifications, and fire suppression technology, all packed in a modular, IP65-rated enclosure ready for indoor or outdoor use.

BigBattery 48V ETHOS 30.7kWh (6 Module) Features

High-Capacity Storage – 30.72kWh total from six 5.12kWh modules—perfect for large homes, off-grid setups, or small commercial buildings.

Modular & Scalable Design – Easily expand up to 80kWh per control box, with stackable modules and included mounting hardware.

Tier 1 LiFePO4 Cells – Offers 7,000–8,000 cycles at 80% Depth of Discharge (DoD) and over 10 years of service life.

Smart Integrated BMS – Built-in Battery Management System in each module with real-time data, fault detection, and passive balancing.

UL-Certified Safety – Meets UL1973, UL9540A, and UN38.3 certifications, with an integrated fire-extinguishing module in every unit.

Outdoor-Ready Durability – Built for real-world conditions with a weatherproof IP65-rated enclosure, allowing for indoor or outdoor installation.

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BigBattery 48V ETHOS 30.7kWh (6 Module) Applications

  • Designed for 48V Applications – Compatible with most 48V solar, inverter, and battery-based systems.
  • Whole-Home Backup – Provides power for entire home systems during outages or energy grid failures.
  • Off-Grid Homesteads – Reliable, long-term power independence without grid reliance.
  • Residential Solar Systems – Maximize energy savings and independence with full-cycle solar storage.
  • UL-Certified ESS – Approved for use in code-compliant residential and commercial energy storage setups.
  • Tiny Homes to Mansions – Modular size fits small cabins or large estates with expandable power options.
  • Emergency Backup Power – Keep essential loads powered through storms, blackouts, and grid outages.
  • Lead-Acid Battery Replacement – Upgrade outdated battery banks with high-efficiency lithium performance.
  • Harsh Climate Performance – Built for intense heat and cold, ensuring all-season operation.
  • Commercial Energy Systems – Ideal for retail stores, offices, or field operations requiring stable backup.
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What's Included

Everything you need is included with your product.

  • 6 × 48V ETHOS 5.12kWh Stackable Battery Module
  • 1 × ETHOS Control Box
  • 1 × ETHOS RACK BASE
  • 2 × Ethos Parallel Power Cable 4.9 ft (1500mm)
  • 1 × Ethos Parallel Comm Cable 4.9 ft (150cm)
  • User Manual

BigBattery 48V ETHOS 30.7kWh (6 Module) Specifications

Category Specifications
SKU K0953
UPC 850061252029
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

BigBattery 48V ETHOS 30.7kWh (6 Module) Videos

Frequently-Asked Questions

Can I expand this system later?

Yes. The ETHOS system supports expansion up to 80kWh per control box, allowing you to add modules as your needs grow.

Is it compatible with my inverter?

Most likely. It’s designed to work with standard 48V inverters, but always verify voltage and communication compatibility with your inverter brand.

Can it be installed outdoors?

Yes. With its IP65-rated enclosure, the ETHOS is weather-resistant and perfect for both indoor and outdoor installations.

Does it need a separate BMS or controller?

No. Each module has its own built-in smart BMS, eliminating the need for external components.

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