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BigBattery 12kW 15.3kWh ETHOS Energy Storage System (ESS)

REVOLUTIONIZING RESIDENTIAL ESS! BigBattery’s 48V ETHOS systems are here, and this 15kWh indoor configuration is the ideal solution for grid-tied power in your tiny home, cabin, or family home, supported by comprehensive safety, reliability, and state-of-the-art features.

The ETHOS System was built to be a versatile home power solution, with a stackable, modular design for easy expandability, and all hardware included to mount your ETHOS to your wall with an effortless installation. The ETHOS comes equipped with an IP65-rated casing, an internal fire suppression system, as well as an advanced BMS with auto cell-balancing to ensure long-lasting safety and reliability. Plus, its control box features an interactive LED display, along with CANBus and RS485 communication protocols, so you can always monitor the status and performance of your power.

But that’s not all. We pair our ETHOS with a cutting-edge 12000W Lux inverter, which features its own LCD touch screen display, 3 MPPT inputs, an integrated UPS module for seamless on and off-grid switching, and the ability to handle PV arrays of up to 18000W. Plus, through its smart load control, AC coupling abilities, and peak shaving function, you can meet your power needs and protect your home against unstable grids or rolling blackouts, while seeing huge savings each month on your electric bill.

Whether you’re looking to ensure emergency backup power is always available, or you’re looking to outfit your home with a powerful solar system, the ETHOS ensures reliable, efficient power delivery day in and day out, allowing you to save on utilities, or get rewarded for giving back to the grid through net metering programs and other tax incentives. Take control of your home’s power and shop the 48V ETHOS today!

30% Federal Tax Credit Available

  • This system qualifies for federal rebates.

Warranty:

  • BigBattery: 12-Year Full Coverage Warranty
  • LUXPower: 10-Year Limited Warranty

Benefits:

  • 300% 10-Year Savings vs Lead-Acid
  • 1/3 the weight and space
  • 4x cycle life
  • 100% safe and reliable

Designed For 48V Applications:

  • Residential Power Systems
  • Home Solar Systems
  • Cabins & Tiny Homes
  • Family Homes & Mansions
  • Off-Grid Homesteads
  • Emergency Power
  • Whole Home Backup
  • Lead Acid Replacement

Videos:

BigBattery's UL-Certified Lithium Power Solution featuring the ALL NEW 48V ETHOS!!!


48V ETHOS Installation Guide

Included Components:

  • 3 × 48V ETHOS 5.12kWh Stackable Battery Module
  • 1 × ETHOS Control Box
  • 1 × LUXPower 12kW Hybrid Inverter
  • 1 × 15kWh Ethos Controller to Battery Power Cable 4ft (1220mm)

Tech Specs:

Brand BigBattery
SKU
K0955
GTIN-12 (U.P.C.)
850061252098
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
BMS Cutoff Range
42 - 47V
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 UL9540, UL9540A, UL1973, & UN38.3
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BigBattery 12kW 15.3kWh ETHOS Energy Storage System (ESS)
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