Description
NEXUS LiFePO₄ modules (15kWh each) pair with the EG4 6000XP delivering 6,000W split-phase per inverter and up to 8,000W PV input, perfect for grid-tied or off-grid backup; systems scale from 15kWh to 225kWh and up to 18kW output. Featuring dual MPPTs, built-in breakers, a 15–30ms UPS transfer switch, and remote monitoring, they ensure seamless and efficient performance. Lightweight and transformer-free, they support smart load control, AC coupling, and peak shaving to reduce energy costs while providing reliable backup power.
BigBattery NEXUS 51.2V 15kWh LiFePO4 Battery
| System Voltage | 48V |
|---|---|
| Nominal Voltage | 51.2V |
| Chemistry | LiFePO4 |
| Usable Energy (kWh) | 15kWh |
| Ah Capacity | 300Ah |
| Cell Configuration | 16S1P |
| Max Continuous Discharge | 100A |
| Max Discharge Power | 7.6kW |
| Max Discharge Peak | 110A |
| Max Charge Current | 100A |
| Charging Voltage Range | 53.5V-57.6V |
| Operating Voltage Range | 48V-57.6V |
| Max Charge Voltage | 57.9V |
| Suggested Low Voltage Cutoff | 50.8V |
| Charge Temp Range | 32°F to 113°F |
| Discharge Temp Range | -4°F to 113°F |
| Optimal Discharge Temp | 59°F to 95°F |
| Storage Temp Range (SoC >50%) | -4°F ~ 77°F |
| Humidity Range | 10%-95% (No Condensation) |
| Weight (kg) | ~142.8 kg ±5 |
| Dimensions (WxHxD) | 19.7 in x 27.5 in x 15.7 in |
| Altitude Limit | <2000m |
| Max Connections | 15 in parallel (up to 225kWh) |
| Communications | RS485 / RJ45 / CAN |
| Protection Rating | IP21 |
| Certifications | UN38.3 |
| Installation | Indoor Floor-standing |
EG4 6000XP 6000W 48V Split Phase Off-Grid Inverter
| 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 |
| Storage Temperature | 5ºF – 140ºF |
| 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 |
| Depth | 5.25 in |
| Width | 18 in |
| Height | 25.5 in |
