BigBattery 48V 20.48kWh 4X HUSKY 2 Lithium Battery KIT – EG4 12K Off-Grid Inverter
Power through anything with the BigBattery 48V 4X HUSKY 2 Kit, delivering a massive 20.48kWh of premium LiFePO₄ storage and paired with the ultra-capable EG4 12kW Off-Grid Inverter. This system is purpose-built for serious off-grid applications, dependable emergency backup, and rugged mobile power systems in RVs, off-grid homes, commercial vehicles, and more.
The HUSKY 2 is BigBattery’s most energy-dense 48V solution, engineered with top-tier LFP cells and a robust, IP65-rated casing to handle harsh environments and heavy-duty demands. Whether you're powering your homestead or exploring off-grid terrain, this kit delivers unbeatable reliability, long-lasting power, and high-performance output.
Each HUSKY 2 battery features an advanced BMS offering protections against over/under voltage, over-current, and overheating, plus built-in self-heating for cold weather operation. Its vibration-resistant enclosure means it’s ready for mobile and outdoor use without requiring routine maintenance.
This kit includes the EG4 12000XP Split-Phase Inverter, an advanced off-grid inverter with support for up to 24,000W of PV input, dual MPPTs, a built-in UPS module, smart load control, and more. With an intuitive LCD touchscreen and parallel scalability up to 72kW, this inverter is ready for expansion and long-term performance.
Key Features:
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Battery Capacity: 20.48kWh (4 × 5.12kWh HUSKY 2 Modules)
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System Voltage: 48V
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Battery Chemistry: LiFePO₄ (Lithium Iron Phosphate)
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Inverter: 12000W Split-Phase Off-Grid Inverter with Dual MPPT & 24000W PV Input
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BMS: Advanced protection with cell balancing, thermal management, and more
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Cold Weather Ready: Built-in self-heating for sub-zero charging
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Enclosure: IP65-rated, vibration-resistant, no routine maintenance required
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Monitoring: Real-time insights via inverter LCD display + RS485/CANBus support
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Expandability: Inverter can be paralleled up to 72kW
Perfect For:
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Off-Grid Cabins & Homesteads
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RVs, Vans, and Mobile Living
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Commercial Vehicle Power Systems
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Emergency Backup Systems
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Food Trucks & Remote Workstations
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Lead Acid Battery Replacement
What’s Included:
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4 × 48V HUSKY 2 INV Battery Modules – FHSKY-48051-G2-INV
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1 × EG4 12kW (24000W PV Input) Off-Grid Inverter – INV030
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3 × Parallel Communication Cables – CBL099
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3 × 4AWG (Black & Red) 21” Ring-to-Ring Terminal Cables – CBL092
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1 × 2AWG (Black & Red) 3FT Ring-to-Ring Terminal Cable – CBL086
Specifications
Product Specifications
| GTIN-12 (U.P.C.): |
850061252296 |
| 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 |
| CE Certificate: |
CE Certificate |
| UN38.3 Certificate: |
UN38.3 Certificate |
Why Buy From Us
Why Buy From Ecogrid Supply?
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Authorized & Trusted Dealer: We’re fully authorized for every brand we carry, so you get genuine products with full manufacturer warranties.
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Fast, Reliable Shipping: All items ship from our U.S. warehouses with quick and dependable freight options to keep your project on track.
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30-Day Hassle-Free Returns: Change your mind? No worries — enjoy a simple 30-day return process for peace of mind.
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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.
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Expert Energy Guidance: Our solar and backup energy specialists are ready to help you with design, planning, product questions, and installation tips.
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USA-Based Service: Our team proudly operates here in the United States, providing local, knowledgeable, and friendly support.
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Secure Payments: Shop confidently with our encrypted, secure checkout to protect your personal and payment information.
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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
