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Big Battery 48V ETHOS 10.2KWH (2 Module) Wall Mount Batteries Big Battery

Big Battery 48V ETHOS 10.2KWH (2 Module)

BY: Big Battery | SKU: KIT0949 Availability: In Stock
$4,490.00

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Big Battery 48V ETHOS 10.2KWH (2 Module)

STACKABLE POWER STORAGE! BigBattery’s 48V ETHOS is here to revolutionize your home’s power. Our all new ETHOS battery system features a fully stackable and modular design, equipped with its own control box, in-depth LED display, and mounting system.

Whether you’re looking to ensure emergency backup power is available in your cabin or tiny home, or you’re looking to outfit your residential home with a powerful solar system, the ETHOS ensures reliable, efficient power delivery through every season. Equipped with an intelligent BMS featuring an auto-cell balancing function, as well as an IP65-rated casing, the ETHOS ensures long-lasting safety and durability. Plus, with its interactive LED display and CANBus/RS485 communication protocols, you’re always able to monitor the health and status of your power.

The ETHOS is now available in 2-stack (10.24 kWh) and 3-stack (15.36 kWh) configurations, with the ability to expand upon your ETHOS system as needed. It’s time to take your home’s power to the next level! Shop the all-new 48V ETHOS today!

BigBattery 48V ETHOS 10.2kWh (2 Module) Features

High-Capacity Storage – Delivers 10.24kWh of energy (from two 5.12kWh modules), making it ideal for home backup, solar storage, or off-grid systems.

Stackable & Scalable Design – Easily add more modules and scale your system up to 80kWh per control box to meet growing energy demands.

Tier 1 LiFePO4 Cells – Built with the safest, most stable lithium chemistry, providing over 7,000 cycles at 80% Depth of Discharge and a lifespan of 10+ years.

Advanced Battery Management System (BMS) – Monitors voltage, current, and temperature in real-time with passive cell balancing and built-in system protections.

UL-Certified & Fire Protection – Meets UL1973 & UL9540A safety standards and includes a built-in fire extinguishing module for added peace of mind.

Easy, Flexible Installation – Comes with mounting brackets and hardware, features a wall-mountable, modular design, and includes an IP65-rated enclosure for indoor or outdoor use.

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BigBattery 48V ETHOS 10.2kWh (2 Module) Applications

  • Designed for 48V Applications – Fully compatible with most 48V inverters and systems.
  • Residential Power Systems – Store energy for peak-time use or full-time home power.
  • Home Solar Systems – Ideal for solar energy storage and daily cycling.
  • UL-Certified ESS – Use in certified energy storage systems with confidence.
  • Cabins & Tiny Homes – Compact and expandable for small-space living.
  • Family Homes & Mansions – Stack multiple batteries to meet large energy demands.
  • Off-Grid Homesteads – Reliable, autonomous energy where the grid doesn’t reach.
  • Emergency Power – Ready for power outages and weather-related disruptions.
  • Whole Home Backup – Scalable to power essential circuits or your full home.
  • Lead Acid Replacement – Upgrade from outdated batteries to modern lithium power.
  • Intense Heat & Cold – Operates in extreme environments with wide temp tolerance.
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What's Included

Everything you need is included with your product.

  • 1 × ETHOS Control Box
  • 2 × 48V ETHOS 5.12kWh Stackable Battery Module
  • 1 × 10kWh Ethos Controller to Battery Power Cable 31.5" inch (800mm)
  • User Manual

BigBattery 48V ETHOS 10.2kWh (2 Module) Specifications

Category Specifications
SKU KIT0949
UPC 850061252074
System Voltage: 48V
Nominal Voltage: 51.2V
Chemistry: LiFePO4
kWh Capacity: 10.24 kWh
Ah Capacity: 200 Ah
Charging Voltage Range: 55.6 - 57V
Max Charge Voltage: 58.8V
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)
Dimensions (DxWxH) 6.7 x 26.5 x 43.3 in (170 x 674 x 1100 mm)
Weight 273 lbs (123.8 kg)
Max Connections Up to (16) parallel connections per control box
Communications CANBus / RS485
Protection Rating IP65
Certifications UL9540, UL9540a, UL1973, & UN38.3

BigBattery 48V ETHOS 10.2kWh (2 Module) Videos

Frequently-Asked Questions

Can I add more modules to this setup?

Yes! The ETHOS is designed to scale up to 80kWh per control box. Just add additional modules as needed.

Is the system compatible with my 48V inverter?

Most likely. The ETHOS works with a wide range of 48V inverters, but always check voltage, current, and communication specs to confirm compatibility.

Is it safe to install outdoors?

Yes. With its IP65-rated enclosure, the ETHOS is weather-resistant and suitable for outdoor or garage installations.

How does the fire suppression system work?

Each module includes a built-in fire-extinguishing module to automatically detect and suppress fire in rare event of thermal failure.

Manual and Specification Sheet

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