12-Year Warranty

Full Battery Coverage

48V 4X HUSKY 2 INV - EG4 12K OFF-GRID INVERTER KIT
48V 4X HUSKY 2 INV - EG4 12K OFF-GRID INVERTER KIT - Image 2
48V 4X HUSKY 2 INV - EG4 12K OFF-GRID INVERTER KIT - Image 3
48V 4X HUSKY 2 INV - EG4 12K OFF-GRID INVERTER KIT - Image 4
48V 4X HUSKY 2 INV - EG4 12K OFF-GRID INVERTER KIT - Image 5
_Parallel Comm Cable
48V 4X HUSKY 2 INV - EG4 12K OFF-GRID INVERTER KIT - Image 7
48V 4X HUSKY 2 INV - EG4 12K OFF-GRID INVERTER KIT - Image 8

Product Summary:

The 48V 4× HUSKY 2 INV – EG4 12000XP Off-Grid Inverter Kit is a high-capacity, scalable energy solution designed for off-grid living, whole-home backup, and demanding power applications. Combining four 48V 5.12kWh HUSKY 2 LiFePO₄ batteries (20.48kWh total) with the powerful EG4 12000XP hybrid inverter, this system delivers reliable, efficient energy for residential, mobile, and remote setups.

 

The EG4 12000XP provides up to 12,000W split-phase output with 24,000W PV input and dual MPPTs, enabling strong solar production and seamless power management between solar, battery, and generator inputs. With fast UPS-level switching (15-30ms), smart load control, and parallel capability, the system ensures uninterrupted performance and future scalability.

 

Paired with HUSKY 2 INV batteries – featuring inverter communication capability, Tier 1 LiFePO₄ cells, advanced BMS protection, and self-heating functionality – this system ensures stable, long-lasting energy even in harsh environments. Built with IP65-rated, vibration-resistant enclosures, the batteries are designed for rugged indoor and outdoor use.

Ships From: Texas, USA
Warranty: 12 Years (Battery), 5 Years (Inverter)
Support: Lifetime USA-Based Tech Support

 

Compatibility

Integrated & Optimized System:

  • 4× HUSKY 2 INV 48V LiFePO₄ Batteries + EG4 12000XP Hybrid Inverter

Expandable & Flexible:

  • Scalable battery capacity for growing energy needs
  • Parallel inverter capability up to 72kW system output
  • Supports solar + generator input configurations
  • Designed for off-grid, backup, and mobile power applications
Key Features
  • Complete Off-Grid System – Battery + inverter solution designed to work seamlessly together
  • 20.48kWh Total LiFePO₄ Storage – High-capacity, reliable energy storage
  • 12,000W Split-Phase Output – Powers whole-home and high-demand loads
  • 24,000W PV Input – High solar capacity with dual MPPT optimization
  • Inverter Communication (INV Batteries) – Optimized coordination between battery and inverter
  • Advanced BMS Protection – Multi-layer safety for voltage, current, and temperature
  • IP65-Rated Battery Design – Built for dust, water resistance, and rugged environments
  • Self-Heating Function – Reliable performance in cold climates
  • UPS Backup (15–30ms) – Seamless transition during outages
  • Smart Energy Management – Supports load control, AC coupling, and peak shaving
  • Parallel Capability – Expand system output for larger applications
  • Maintenance-Free Operation – No routine servicing required

A high-capacity, scalable off-grid energy system built for performance, durability, and long-term energy independence.

48V 4X HUSKY 2 INV – EG4 12K OFF-GRID INVERTER KIT

$8,415.00
SKU# K0707

Choose Your Inverter Option*

EG4 18kPV EG4 FlexBoss18 EG4 FlexBoss21 None

Choose Your Battery Option*

BigBattery ETHOS EG4 280Ah All Weather EG4 280Ah Indoor EG4 314Ah Indoor None

Choose Your Inverter Option*

EG4 6000XP EG4 12000XP VICTRON MP II 3000 VICTRON MP II 5000 None

Choose Your Battery Option*

BigBattery NEXUS BigBattery ETHOS BigBattery HUSKY2 INV EG4 280Ah All Weather EG4 280Ah Indoor None
SKU: K0707 Category:

Items Included

4 × 48V HUSKY 2 INV - FHSKY-48051-G2-INV
3 × Parallel Comm Cable - CBL099
3 × 4AWG (Black and Red) 21 inches Ring to Ring Terminal Cable - CBL092
1 × 2AWG (Black and Red) 3FT Ring to Ring Terminal Cable - CBL086
1 × EG4 12kW (24kPV) OFF-GRID INVERTER - INV030
Quantity:

Compatible Accessories & Additional Add-ons

Designed For 48V Applications
  • LEAD ACID REPLACEMENT
  • OFF-GRID SYSTEMS
  • EMERGENCY BACKUP
  • CLASS A, B, & C RVs
  • CAMPER VANS
  • FOOD TRUCKS
  • COMMERCIAL VEHICLES
  • MOBILE POWER SETUPS

See More On YouTube



Battery Downloads

SKU#:K0707
Spec Sheet:DownloadDOWNLOAD
User Manual:DownloadDOWNLOAD
CE Certificate:DownloadDOWNLOAD
UN38.3 Certificate:DownloadDOWNLOAD
Safety Data Sheet:DownloadDOWNLOAD

Battery Specifications

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 Downloads

SKU#:K0707
Spec Sheet:DownloadDOWNLOAD
User Manual:DownloadDOWNLOAD
UL1741 Certificate:DownloadDOWNLOAD
WiFi Configuration Guide:DownloadDOWNLOAD

Inverter Specifications

Nominal AC Voltage:120/240VAC | 120/208VAC (L1/L2/N required)
Frequency (Grid | Generator):60 Hz (Default) | 50 Hz (Configurable)
Max. Continuous AC Current (Grid | Generator):100A @ 240VAC | 62.5A @ 240VAC
Max. AC Input Power:24000W
AC Bypass (Grid | Generator):100A | 90A
Recommended Generator Capacity:6000W – 15000W
Output Voltage:120/240VAC | 208VAC
Output Frequency:60 Hz (Default) | 50 Hz (Configurable)
Max. Continuous Output Current:50A @ 240VAC | 57.7A @ 208VAC
Nominal Output Power (without PV):12000W @ 240V | 12000W @ 208V
Nominal Output Power (with PV):12000W @ 240V | 12000W @ 208V
Max. Continuous Wattage:12000W (L1/L2) | 6000W (L1-N/L2-N)
Surge Capacity:18000W (5 sec) | 15000W (10 sec)
Power Factor:0.99
Total Harmonic Distortion:<3%
Switching Time:<10 ms (Single) | <20 ms (Parallel)
No. of MPPTs (Inputs per MPPT):2 (2)
Max. Input Current:35A / 35A
Max. Short Circuit Input Current:44A / 44A
DC Input Voltage Range:100 – 480VDC
Min. Start Up Voltage:100VDC
MPPT Operating Voltage Range:120 – 385VDC
Nominal MPPT Voltage:320VDC
Max. Utilized PV Power:24000W (12000W per MPPT)
Max. Recommended PV Input:28000W (14000W per MPPT)
Max. Efficiency:99% (MPPT) | 93.5% (PV to Loads) | 92.8% (PV to Battery) | 92.5% (AC to Battery) | 90.2% (Battery to Loads)
Idle Consumption (Standby Mode):<70W
Nominal Voltage:48VDC
Battery Voltage Range:46.4 – 60VDC
Max. Charge / Discharge Current:250A
Max. Charge / Discharge Power:12000W
DC Cut-Off Voltage:59VDC
Recommended Battery Capacity per Inverter:>400Ah
Max. Parallel Connections:6
Protection Rating:IP20
Communication Interface:RS485 / CANBus / WiFi
Operating Temperature (Full Load):32ºF – 113ºF (0ºC – 45ºC)
Storage Temperature:5ºF – 140ºF (-15ºC – 60ºC)
Altitude:<6,561 ft (2000 m)
Relative Humidity (Non-Condensing):5 – 95%
Typical Noise Emission:<60 dB
Cooling Method:Fan
Weight:104.7 lbs (47.5 kg)
Depth:5.9 in (150 mm)
Width:20.9 in (530 mm)
Height:34.25 in (870 mm)

Compare Battery

Compare Inverter

Battery: 12 Years BigBattery Warranty

Inverter: 5 Years EG4 Manufacturer Warranty

Designed For 48V Applications
  • LEAD ACID REPLACEMENT
  • OFF-GRID SYSTEMS
  • EMERGENCY BACKUP
  • CLASS A, B, & C RVs
  • CAMPER VANS
  • FOOD TRUCKS
  • COMMERCIAL VEHICLES
  • MOBILE POWER SETUPS

See More On YouTube



Battery Downloads

SKU#:K0707
Spec Sheet:DownloadDOWNLOAD
User Manual:DownloadDOWNLOAD
CE Certificate:DownloadDOWNLOAD
UN38.3 Certificate:DownloadDOWNLOAD
Safety Data Sheet:DownloadDOWNLOAD

Battery Specifications

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 Downloads

SKU#:K0707
Spec Sheet:DownloadDOWNLOAD
User Manual:DownloadDOWNLOAD
UL1741 Certificate:DownloadDOWNLOAD
WiFi Configuration Guide:DownloadDOWNLOAD

Inverter Specifications

Nominal AC Voltage:120/240VAC | 120/208VAC (L1/L2/N required)
Frequency (Grid | Generator):60 Hz (Default) | 50 Hz (Configurable)
Max. Continuous AC Current (Grid | Generator):100A @ 240VAC | 62.5A @ 240VAC
Max. AC Input Power:24000W
AC Bypass (Grid | Generator):100A | 90A
Recommended Generator Capacity:6000W – 15000W
Output Voltage:120/240VAC | 208VAC
Output Frequency:60 Hz (Default) | 50 Hz (Configurable)
Max. Continuous Output Current:50A @ 240VAC | 57.7A @ 208VAC
Nominal Output Power (without PV):12000W @ 240V | 12000W @ 208V
Nominal Output Power (with PV):12000W @ 240V | 12000W @ 208V
Max. Continuous Wattage:12000W (L1/L2) | 6000W (L1-N/L2-N)
Surge Capacity:18000W (5 sec) | 15000W (10 sec)
Power Factor:0.99
Total Harmonic Distortion:<3%
Switching Time:<10 ms (Single) | <20 ms (Parallel)
No. of MPPTs (Inputs per MPPT):2 (2)
Max. Input Current:35A / 35A
Max. Short Circuit Input Current:44A / 44A
DC Input Voltage Range:100 – 480VDC
Min. Start Up Voltage:100VDC
MPPT Operating Voltage Range:120 – 385VDC
Nominal MPPT Voltage:320VDC
Max. Utilized PV Power:24000W (12000W per MPPT)
Max. Recommended PV Input:28000W (14000W per MPPT)
Max. Efficiency:99% (MPPT) | 93.5% (PV to Loads) | 92.8% (PV to Battery) | 92.5% (AC to Battery) | 90.2% (Battery to Loads)
Idle Consumption (Standby Mode):<70W
Nominal Voltage:48VDC
Battery Voltage Range:46.4 – 60VDC
Max. Charge / Discharge Current:250A
Max. Charge / Discharge Power:12000W
DC Cut-Off Voltage:59VDC
Recommended Battery Capacity per Inverter:>400Ah
Max. Parallel Connections:6
Protection Rating:IP20
Communication Interface:RS485 / CANBus / WiFi
Operating Temperature (Full Load):32ºF – 113ºF (0ºC – 45ºC)
Storage Temperature:5ºF – 140ºF (-15ºC – 60ºC)
Altitude:<6,561 ft (2000 m)
Relative Humidity (Non-Condensing):5 – 95%
Typical Noise Emission:<60 dB
Cooling Method:Fan
Weight:104.7 lbs (47.5 kg)
Depth:5.9 in (150 mm)
Width:20.9 in (530 mm)
Height:34.25 in (870 mm)

Compare Battery

Compare Inverter

Battery: 12 Years BigBattery Warranty

Inverter: 5 Years EG4 Manufacturer Warranty

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