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Big Battery | 6kW 10.2kWh ETHOS Off-Grid Power System (BACKORDER)

SKU K0708
Save $59.00 Save $59.00
Original price $5,449.00
Original price $5,449.00 - Original price $5,449.00
Original price $5,449.00
Current price $5,390.00
$5,390.00 - $5,390.00
Current price $5,390.00

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 OFF-GRID POWER! BigBattery’s 48V ETHOS system is the ultimate solution for off-grid energy in your tiny home, cabin, or homestead, delivering exceptional safety, reliability, and cutting-edge performance.

Designed with flexibility in mind, the ETHOS System features a stackable, modular design for easy expansion, along with all the hardware needed for simple wall mounting. Its IP65-rated enclosure, internal fire suppression, and advanced BMS with auto cell-balancing ensure long-lasting durability and safety. The system’s control box includes an interactive LED display and supports CANBus and RS485 communication, allowing you to monitor your power system effortlessly.

The ETHOS pairs with a state-of-the-art 6000W EG4 split-phase inverter-charger, equipped with a touchscreen LCD, dual MPPT inputs, an integrated UPS for seamless grid transitions, and the ability to handle up to 8000W of PV input. Advanced features like smart load control, AC coupling, and peak shaving help you optimize power use, reduce reliance on unstable grids, and lower utility costs.

Whether you need reliable backup power or an off-grid system to last year-round, the 48V ETHOS delivers efficient energy every day. Stay prepared and take control of your power—shop the ETHOS today!

 

What's Included

2 × 48V ETHOS 5.12kWh Stackable Battery Module
1 × ETHOS Control Box
1 × EG4 6kW (8kPV) OFF-GRID INVERTER
1 × 10kWh Ethos Controller to Battery Power Cable 31.5" inch (800mm)

Specs and Downloads

Single Stack Tech Specs

System Voltage: 48V
Nominal Voltage: 51.2V
Chemistry: LiFePO4
kWh Capacity: 10.24kWh
Ah Capacity: 200Ah
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 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)
Weight: 273 lb (123.8 kg)
Depth: 6.7 in (170 mm)
Width: 26.5 in (674 mm)
Height: 43.3 in (1100 mm)
Max Connections: Up to (16) parallel connections per control box
Protection Rating: IP65 / NEMA 4X
Communications: CANBus / RS485
Certifications: UL9540A, UL1973, & UN38.3

Inverter Specs

AC INPUT & OUTPUT

AC Voltage: 120V AC / 240V AC
AC Frequency: 50 Hz / 60 Hz
Max. Continuous AC Current: 37.5A @ 240V
Max. AC Input Power: 9000W
AC Bypass: 50A
Output Voltage: 120V AC / 240V AC
Output Frequency: 50 Hz / 60 Hz
Max. Continuous Output Current: 25A @ 240V
Output Power: 6000W
Surge Capacity: 12000W (3.5 sec) / 11000W (5 sec)
Power Factor: 0.99 (Full Load)
Reactive Power Adjustment Range: -0.8 - 0.8 Leading Adjustable
Total Harmonic Distortion: <3%
Switching Time: <15 ms (Single) / <30 ms (Parallel)

PV INPUT

No. of MPPTs (Inputs per MPPT): 2 (1)
Max. Input Current: 17A / 17A
Max. Short Circuit Input Current: 25A / 25A
DC Input Voltage Range: 100 - 480V DC
Start Up Voltage: 100V DC ± 10V DC
MPPT Operating Voltage Range: 120 - 385V DC
MPPT Voltage: 320V DC
Max. PV Array Power: 8000W (4000W per MPPT)
MPPT Efficiency: 99%

BATTERY

Nominal Voltage: 48V DC
Battery Voltage Range: 46.4 - 60V DC
Max. Discharge Current: 140A
Max. Charge Current: 125A
DC Cut-Off Voltage: 59V DC
DC Recovery Voltage: 57.4V DC
Charge Cut-Off Voltage: 58.4V DC

OPERATING ENVIRONMENT & DIMENSIONS

Operating Temperature: 32ºF - 113ºF (0ºC - 45ºC)
Storage Temperature: 5ºF - 140ºF (-15ºC - 60ºC)
Altitude: <6,561 ft (2000 m)
Relative Humidity: 5 - 95%
Typical Noise Emission: <58 dB
Protection Rating: IP20
Max. Parallel Connections: 16
Weight: 52.9 lbs (24 kg)
Depth: 5.25 in (132 mm)
Width: 18 in (457 mm)
Height: 25.5 in (648 mm)


Battery Downloads

Inverter Downloads

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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