EG4 FLEXBOSS18 Hybrid Inverter 13kW 18kPV Solar and Battery Inverter
EG4 FLEXBOSS18 Hybrid Inverter 13kW 18kPV Solar and Battery Inverter
Power large residential and light commercial energy systems with the EG4 FLEXBOSS18 Hybrid Inverter. Designed for high-performance solar integration, it delivers reliable 13kW output with support for extensive PV input and battery storage. This intelligent hybrid solution enables efficient energy management, seamless backup capability, and scalable system expansion, making it ideal for off-grid, grid-tied, and energy storage applications.
KEY FEATURES
- High 13kW output capacity for demanding residential and commercial loads
- Supports up to 18kPV solar input for large system flexibility
- Hybrid functionality for seamless solar, battery, and grid integration
- Advanced energy management for optimized system efficiency
- Built-in smart monitoring and communication capabilities
- Reliable backup power support during grid interruptions
- Scalable design suitable for expanding energy storage systems
- Robust protection features for safe and stable operation



Specifications
| Nominal AC Voltage | 120/240VAC | 120/208VAC (L1/L2/N required) |
| Frequency | 60 Hz (Default) | 50 Hz |
| Max. AC Current | 54A @ 240V | 54A @ 208V |
| Max. AC Input Power | 13,000W |
| Max. AC Bypass | 90A |
| Operating Voltage Range | 180 – 270VAC |
| Output Voltage | 120/240VAC | 120/208VAC (L1/L2/N required) |
| Max. Output Current | 66.7A |
| Output Frequency | 60 Hz (Default) | 50 Hz |
| Nominal Output Power (without PV) | 12,000W @ 240V | 12,000W @ 208V |
| Nominal Output Power (with PV) | 16,000W @ 240V | 13,800W @ 208V |
| Power Factor | 0.99 (Full Load) |
| Reactive Power Adjustment Range | -0.8 – 0.8 Leading Adjustable |
| Total Harmonic Distortion | <5% (Full Load) |
| Transfer Time | 20ms (Default) | 10ms (Configurable) | 20ms (Parallel) |
| Rated Output Current | 50A @ 240V | 57.7A @ 208V |
| Nominal Output Voltage | 120/240VAC | 120/208VAC |
| Rated Output Power | 12,000W @ 240VAC | 12,000W @ 208VAC |
| Peak Power | 20,000W (0.5 sec) | 15,000W (1 sec) | 12,500W (6 min) | 11,000W (12 min) |
| Operating Frequency | 60 Hz (Default) | 50 Hz |
| THD (Voltage) | <5% |
| No. of MPPTs | 2 |
| Inputs per MPPT | 2 (MPPT 1) | 2 (MPPT 2) |
| Max. Usable Input Current | 26A (MPPT 1) | 26A (MPPT 2) |
| Max. Short Circuit Input Current | 31A (MPPT 1) | 31A (MPPT 2) |
| DC Input Voltage Range | 100 – 600VDC |
| Start-Up Voltage | 200VDC |
| MPPT Operating Voltage Range | 120 – 440VDC |
| Nominal MPPT Voltage | 360VDC |
| Max. Utilized PV Array Power | 18,000W |
| Max. Recommended PV Input | 18,000W |
| Max. Efficiency | 97.5% (PV to Grid) | 94.5% (PV to Battery) | 94% (Battery to Grid) |
| Idle Consumption | <65W |
| Battery Nominal Voltage | 48VDC |
| Battery Voltage Range | 40 – 60VDC |
| Max. Charge / Discharge Power | 10,000W |
| Recommended Battery Capacity | >300Ah |
| Operating / Storage Temperature | -13°F – 140°F (-25°C – 60°C) |
| Operating Altitude | <6,561 ft (2000 m) |
| Relative Humidity | 0 – 100% |
| Noise Level | <50dB @ 3 ft |
| Design Topology | High-Frequency / Transformerless |
| Protection Rating | IP65 / NEMA 4X |
| Communications | RS485 / CANBus / WiFi / 4G |
| Max. Parallel Connections | 10 |
| Weight | 115 lbs (52 kg) |
| Dimensions (D × W × H) | 11.2 in × 22.8 in × 30.5 in (287 × 567 × 775 mm) |
Warranty & Downloads
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Frequently Asked Questions
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