Big Battery | 48V 4X HUSKY 2 KIT – EG4 6K Off-Grid Inverter
Overview
NEXT-GEN POWER STORAGE HAS ARRIVED! The 48V 20.48kWh LiFePO4 HUSKY 2 Kit from BigBattery offers unmatched reliability and efficiency for off-grid systems, emergency backups, or mobile setups in RVs and camper vans.
The HUSKY 2 is our most energy-dense 48V solution, built to deliver peace of mind in any situation—whether powering through a home blackout or exploring off-grid destinations. Engineered with Tier 1 LFP cells, wide operating parameters, and comprehensive BMS protections against Over/Under Voltage and Over Current, it sets a new benchmark for durability and performance. A thermal management system and self-heating capability ensure reliable cold-weather operation.
Designed with safety and simplicity in mind, the HUSKY 2 features an IP65-rated, vibration-resistant enclosure, advanced cell balancing, and CANBus & RS485 protocols for easy monitoring. This kit includes two 6000W EG4 split-phase inverters, each with its own LCD display for real-time power updates. These inverters support parallel expansion up to 96kW, built-in circuit breakers, smart load management, multiple working modes, integrated UPS modules, and PV array support up to 8000W each, making them ideal partners for the HUSKY 2.
Compact, lightweight, and designed for year-round performance, the 48V HUSKY 2 Kit ensures you’re always prepared and powered. Shop the new HUSKY 2 Kits today!
What's Included
4 × 48V HUSKY 2 - LiFePO4 - 100Ah - 5.12kWh
2 × EG4 6kW (8kPV) OFF-GRID INVERTER
3 × Parallel Comm Cable
3 × 4AWG (Black and Red) 21 inches Ring to Ring Terminal Cable
1 × 2AWG (Black and Red) 3FT Ring to Ring Terminal Cable
Specs and Downloads
Single Battery Tech Specs
| SKU: | FHSKY-48051-G2 |
| System Voltage: | 48V |
| Nominal Voltage: | 51.2V |
| Chemistry: | LiFePO4 |
| kWh Capacity: | 5.12kWh |
| Ah Capacity: | 100Ah |
| Charging Voltage Range: | 55.6 - 57V |
| Max Charge Voltage: | 58.8V |
| Operating Voltage Range: | 48 – 57V |
| Suggested Low Voltage Cutoff: | 48 – 50.8V |
| BMS Cutoff Range: | 42 - 47V |
| Cell Configuration: | 16S |
| Max Continuous Discharge Current: | 150A |
| Recommended Continuous Discharge Current: | 100A |
| Max Continuous Power: | 7500W |
| Recommended Continuous Power: | 4000W |
| Max Discharge Peak Current: | 225A (Max 5 seconds) |
| Max Charge Current: | 100A |
| Charge Temperature Range: | -4°F - 113°F (-20°C - 45°C) |
| Discharge Temperature Range: | -4°F - 122°F (-20°C - 50°C) |
| Optimal Discharge Temperature Range: | 59°F - 95°F (15°C - 35°C) |
| Storage Temperature Range: | -4°F - 122°F (-20°C - 50°C) (Max 6 months) |
| Weight: | 100 lb (45.4 kg) |
| Depth: | 12.6 in (320 mm) |
| Width: | 18.1 in (460 mm) |
| Height: | 9.8 in (249 mm) |
| Max Connections: | Up to (16) Parallel |
| Protection Rating: | IP65 / NEMA 4X |
| Communications: | CANBus / RS485 (Parallel only) |
| Self-Heating: | Yes |
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) |
