Big Battery | 2x Nexus + 2 x EG4 6000XP
Big Battery | 2 x NEXUS + 2 x EG4 6000XP Power System
The BigBattery 2x NEXUS + 2x EG4 6000XP Power System is a premium dual-inverter energy solution designed for reliable off-grid, hybrid, or whole-home backup power. Featuring two 48V 14.3kWh NEXUS LiFePO4 batteries and two EG4 6000XP hybrid inverters, this system provides a combined 28.6kWh of storage and up to 12,000W of continuous AC output. Engineered for efficiency, safety, and expandability, it’s the ideal setup for high-demand energy applications and long-term energy independence.
KEY FEATURES
- 28.6kWh total capacity with two 48V 14.3kWh NEXUS LiFePO4 batteries
- Dual EG4 6000XP inverters for 12,000W continuous output and 24,000W surge
- 120/240V split-phase power for full home or business applications
- Supports up to 8,000W solar PV input per inverter with 99% MPPT efficiency
- Smart BMS and inverter integration for seamless operation and protection
- Parallel capability up to 16 units for scalable power expansion
- 7,000+ cycle lifespan with CATL-grade LiFePO4 chemistry
- Low noise (<58dB) and high efficiency with <3% total harmonic distortion
Specifications
AC INPUT
| 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 |
AC OUTPUT
| 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
| 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 |
DIMENSIONS
| Weight: | 52.9 lbs (24 kg) |
| Depth: | 5.25 in (132 mm) |
| Width: | 18 in (457 mm) |
| Height: | 25.5 in (648 mm) |
Manual & Downloads
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Most orders ship within 1–3 business days. You’ll get a tracking number as soon as it ships via email!
Do We Accept Returns?
Yes absolutely, we have a no-hassle, 30-day return policy on all items! To refer to the full policy, click HERE
Are Products Brand New?
Yes! By default, all products on Solar Guys Pro are 100% brand-new and in perfect condition.
If an item is used or refurbished, it will clearly indicate so in the title of the product as well as the discription.
For example, a used Battery will say:
XYZ Battery | 48V 100AH (REFURBISHED)
If you'd like to confirm, you can always send us a email at info@solarguyspro.com
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Frequently Asked Questions
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