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BigBattery, K0708, ETHOS Battery & 6000XP Inverter | 5.12–30.72kWh | Off- Grid System BigBattery, K0708, ETHOS Battery & 6000XP Inverter | 5.12–30.72kWh | Off- Grid System BigBattery, K0708, ETHOS Battery & 6000XP Inverter | 5.12–30.72kWh | Off- Grid System BigBattery, K0708, ETHOS Battery & 6000XP Inverter | 5.12–30.72kWh | Off- Grid System BigBattery, K0708, ETHOS Battery & 6000XP Inverter | 5.12–30.72kWh | Off- Grid System
BigBattery, K0708, ETHOS Battery & 6000XP Inverter | 5.12–30.72kWh | Off- Grid System
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BigBattery, K0708, ETHOS Battery & 6000XP Inverter | 5.12–30.72kWh | Off- Grid System

  • Model: K0708
  • Manufactured by: BigBattery
  • Condition: New
  • Estimated Delivery: May 4th - May 10th
  • In Stock
Price:

$5,837.00 $4,490.00

Manufacturer Info

(image for) BigBattery
The BigBattery ETHOS™ + EG4 6000XP ESS System is a compact, modular energy solution designed for both on-grid and off-grid applications. Combining the scalable ETHOS 48V LiFePO? battery system with the efficient EG4 6000XP inverter-charger, this system delivers reliable, flexible energy for tiny homes, cabins, and backup power setups.

The EG4 6000XP provides up to 6,000W split-phase output with solar input support and seamless integration of battery, solar, and generator power. Paired with the ETHOS battery system – expandable up to 80+ kWh – this setup ensures long-lasting, maintenance-free energy storage with consistent performance.

Built with advanced battery management, and U.S.-engineered design, this system delivers safe, intelligent energy control with closed-loop communication and real-time monitoring. Ideal for backup power, energy savings, and full off-grid independence.
  • Ships From: Texas, USA
  • Warranty: 12 Years (Battery), 5 Years (Inverter)
  • Support: Lifetime USA-Based Tech Support
Compatibility

Integrated & Optimized System
  • ETHOS Battery System + EG4 6000XP Inverter-Charger
Expandable & Flexible
  • Scalable ETHOS battery capacity up to 80+ kWh
  • Compatible with additional ETHOS modules for future expansion
  • Supports grid-tied, hybrid, and off-grid installations
  • Key Features
  • Complete ESS Solution – Battery + inverter system designed to work seamlessly together
  • 6,000W Split-Phase Output – Reliable power for small homes, cabins, and backup systems
  • LiFePO? Battery Chemistry – Safe, stable lithium technology with long lifespan
  • 6,000+ Cycle Life – Built for years of daily use and long-term savings
  • Closed-Loop Communication – Optimized coordination between battery and inverter
  • Advanced BMS Protection – Multi-layer protection for safe and reliable operation
  • Modular Expansion – Easily scale storage capacity as energy needs grow
  • Solar + Generator Ready – Flexible input options for continuous energy availability
  • UPS Backup Capability – Seamless transition during outages
  • Remote Monitoring & Control – Real-time system tracking and performance insights
  • Maintenance-Free Operation – No routine servicing required
A compact, scalable energy storage system built for reliability, flexibility, and long-term energy independence – perfect for smaller off-grid and backup applications.

Battery Specifications
  • 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 Specifications
  • 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)
  • 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%
  • Nominal Battery Voltage: 48V DC
  • Battery Voltage Range: 46.4 – 60V DC
  • Max. Discharge Current: 140A
  • Max. Charge Current: 125A
  • DC Cut-Off Voltage: 59V DC
  • Operating Temperature: 32°F – 113°F (0°C – 45°C)
  • Storage Temperature: 5°F – 140°F (-15°C – 60°C)
  • 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)
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