BigBattery 48V 10.24kWh 2X HUSKY 2 Lithium Battery KIT – EG4 6K Off-Grid Inverter
Take your off-grid power system to the next level with the BigBattery 48V 2X HUSKY 2 Kit, featuring 10.24kWh of dependable LiFePO₄ storage and the powerful EG4 6kW Off-Grid Inverter. This rugged, high-performance kit is engineered to deliver reliable energy for emergency backup, mobile power, or full off-grid living.
The HUSKY 2 is BigBattery’s most advanced 48V solution yet—designed with top-tier LFP cells and built to thrive in demanding environments. Whether you’re weathering storms at home or venturing into remote terrain in your RV or camper van, HUSKY 2 batteries offer high energy density, long lifespan, and complete peace of mind.
Each battery is housed in a vibration-resistant, IP65-rated enclosure and features an advanced BMS with auto cell balancing, over/under voltage protection, and over current safeguards. Plus, with built-in self-heating, this system charges safely in freezing conditions—perfect for winter applications or cold climates.
To match the HUSKY 2’s capabilities, this kit includes the EG4 6000W Split-Phase Inverter, supporting up to 8000W of PV input, smart load control, multiple working modes, and integrated UPS functionality for instant power transfer. Its LCD touchscreen delivers real-time insights, and its modular design enables expansion up to 96kW for larger off-grid setups.
Key Features:
-
Battery Capacity: 10.24kWh (2 × 5.12kWh HUSKY 2 Modules)
-
System Voltage: 48V
-
Battery Chemistry: LiFePO₄ (Lithium Iron Phosphate)
-
Inverter: 6000W Split-Phase Off-Grid Inverter with Dual MPPT, 8000W PV Input, Smart Load Control
-
BMS: Auto-balancing, thermal protection, over/under voltage & current protection
-
Self-Heating: Cold weather charging support
-
Enclosure: IP65-rated, vibration-resistant, maintenance-free
-
Monitoring: Built-in inverter LCD display and parallel CANBus & RS485 communication
-
Expandability: Inverter parallelable up to 96kW
Designed For 48V Applications:
-
Lead Acid Replacement
-
Off-Grid Power Systems
-
Emergency Backup
-
Class A, B, & C RVs
-
Camper Vans
-
Food Trucks & Commercial Vehicles
-
Mobile Power Setups
What’s Included:
-
2 × 48V HUSKY 2 INV Battery Modules – Model: FHSKY-48051-G2-INV
-
1 × EG4 6kW (8000W PV Input) Off-Grid Inverter – Model: INV026
-
1 × Parallel Communication Cable – Model: CBL099
-
1 × 4AWG (Black & Red) 21” Ring-to-Ring Terminal Cable – Model: CBL092
Specifications
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 |
| Spec Sheet: |
Spec Sheet |
| User Manual: |
User Manual |
| Safety Data Sheet: |
Safety Data Sheet |
| CE Certificate: |
CE Certificate |
| UN38.3 Certificate: |
UN38.3 Certificate |
Inverter Specifications
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) |
Why Buy From Us
Why Buy From Ecogrid Supply?
-
Authorized & Trusted Dealer: We’re fully authorized for every brand we carry, so you get genuine products with full manufacturer warranties.
-
Fast, Reliable Shipping: All items ship from our U.S. warehouses with quick and dependable freight options to keep your project on track.
-
30-Day Hassle-Free Returns: Change your mind? No worries — enjoy a simple 30-day return process for peace of mind.
-
Real Human Support, 7 Days a Week: Reach us by phone, email, or live chat — no bots, no overseas call centers, just real people who know off-grid power systems.
-
Expert Energy Guidance: Our solar and backup energy specialists are ready to help you with design, planning, product questions, and installation tips.
-
USA-Based Service: Our team proudly operates here in the United States, providing local, knowledgeable, and friendly support.
-
Secure Payments: Shop confidently with our encrypted, secure checkout to protect your personal and payment information.
-
Built for Energy Independence: Whether you’re powering a cabin, prepping for emergencies, or going off-grid, our products are selected for performance, reliability, and sustainable operation.
Buying Guide
