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EG4 All Weather Battery – EG4 12000XP V2 Hybrid Inverter (ESS) | 14.3-85.8 kWh | Off-Grid Home Solar System (24kW-72kW PV)

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| SKU:

K0149

$5,193.97
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EG4 280Ah All-Weather Battery + EG4 12000XP ESS System | 14.3kWh LiFePO₄ Battery | 12kW Split-Phase Output | 24kW PV Input

Scalable All-Weather Energy Storage System with 14.3kWh Lithium Battery, 12000XP Hybrid Inverter & Advanced Whole-Home Backup Power

The EG4 280Ah All-Weather Battery + EG4 12000XP ESS System is a complete energy storage solution built for homeowners, off-grid properties, cabins, and backup power applications. Combining the rugged 14.3kWh EG4 All-Weather LiFePO₄ battery with the high-performance EG4 12000XP hybrid inverter, this system delivers reliable, scalable energy management in virtually any environment. With up to 12,000W split-phase output, 24,000W of solar input capacity, and expandable storage up to 85.8kWh, this ESS provides exceptional flexibility, energy security, and long-term performance. Advanced battery protection, integrated self-heating, and seamless closed-loop communication ensure dependable operation year-round.

Key Features:

  • Complete ESS Solution: Fully integrated battery and inverter package engineered for seamless installation and optimized performance.
  • 12,000W Split-Phase Output: Delivers reliable 120/240V power for whole-home backup, off-grid systems, and demanding loads.
  • 24,000W Solar Input Capacity: Supports large PV arrays with dual MPPT optimization for maximum solar production.
  • 14.3kWh LiFePO₄ Battery Storage: High-capacity lithium iron phosphate battery provides safe, dependable energy storage.
  • Expandable Up to 85.8kWh: Easily increase storage capacity as energy demands grow.
  • 200A Continuous Output: Supports high-demand appliances, critical loads, and extended backup operation.
  • 8,000+ Cycle Life: Designed for exceptional longevity and years of reliable daily cycling.
  • All-Weather Design: Built for dependable indoor and outdoor installation in challenging environments.
  • Integrated Self-Heating Technology: Maintains reliable performance and charging capability in cold climates.
  • Advanced BMS & Safety Features: Includes active cell balancing, internal fire suppression, and comprehensive battery protection.
  • Closed-Loop Communication: Optimizes battery and inverter performance through intelligent system coordination.
  • Smart Energy Management: Supports load control, AC coupling, peak shaving, and generator integration for maximum flexibility.

Ideal Applications:

  • Whole-home backup power systems
  • Off-grid homes and cabins
  • Residential solar energy storage
  • Homesteads and remote properties
  • Hybrid solar and battery installations
  • Peak shaving and utility cost reduction
  • Energy independence and resiliency projects

What’s Included:

  • 1 × EG4 280Ah All-Weather LiFePO₄ Battery (14.3kWh)
  • 1 × EG4 12000XP Hybrid Inverter
  • Battery-to-Inverter Communication Components
  • Monitoring & Connectivity Interfaces
  • User Manuals & Installation Documentation

Specifications

Parameter Details
Battery Specifications
Nominal Voltage51.2VDC
ChemistryLithium Iron Phosphate (LiFePO4)
Energy Capacity14.3kWh
Capacity280Ah
BMS Charging Voltage (Bulk/Absorb)56.0V (±0.8V)
Recommended Charging Voltage56.2V (±0.2V)
Recommended Float Voltage54V (±0.2V)
Recommended SoC Cutoff20%
Max Continuous Charge Current140A
Max Continuous Discharge Current140A (200A for 30 min peak)
Recommended Charge/Discharge Current60 – 140A
Max Continuous Discharge Power10,240W
Voltage Reference56V
Power Consumption224W
Internal Temperature Cutoffs≤32°F (Heating On) / ≥41°F (Heating Off)
Charging Temperature Range32°F – 122°F (0°C – 50°C)
Discharging Temperature Range-4°F – 131°F (-20°C – 55°C)
Storage Temperature Range32°F – 113°F (0°C – 45°C)
Operating Altitude<16,404 ft (<5,000 m)
Protection RatingIP65
CommunicationsRS485 / CANBus
Weight308.6 lbs (140 kg)
Dimensions (D × W × H)9.1 × 22.3 × 36.1 in (232 × 566 × 916 mm)
Inverter Specifications
Nominal AC Voltage120/240VAC | 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 Power24,000W
AC Bypass (Grid | Generator)100A | 90A
Recommended Generator Capacity6,000W – 15,000W
Output Voltage120/240VAC | 120/208VAC
Output Frequency60 Hz (Default) | 50 Hz (Configurable)
Max Continuous Output Current50A @ 240VAC | 57.7A @ 208VAC
Nominal Output Power (without PV)12,000W @ 240V | 12,000W @ 208V
Nominal Output Power (with PV)12,000W @ 240V | 12,000W @ 208V
Continuous Wattage12,000W (L1/L2) | 6,000W (L1-N/L2-N)
Surge Capacity18,000W (5 sec) | 15,000W (10 sec)
Power Factor0.99
Total Harmonic Distortion<3%
Switching Time<10 ms (Single) | <20 ms (Parallel)
MPPT Inputs2 MPPT (2 inputs each)
Max Input Current35A / 35A
Max Short Circuit Current44A / 44A
DC Input Voltage Range100 – 480VDC
Start Up Voltage100VDC
MPPT Operating Range120 – 385VDC
Nominal MPPT Voltage320VDC
Max PV Input Power24,000W (12,000W per MPPT)
Max Recommended PV Input28,000W (14,000W per MPPT)
Efficiency99% (MPPT) | 93.5% PV to Loads | 92.8% PV to Battery | 92.5% AC to Battery | 90.2% Battery to Loads
Idle Consumption<70W
Battery Voltage Range46.4 – 60VDC
Max Charge / Discharge Current250A
Max Charge / Discharge Power12,000W
DC Cut-Off Voltage59VDC
Recommended Battery Capacity>400Ah
Max Parallel Connections6
Protection RatingIP20
Communication InterfaceRS485 / CANBus / WiFi
Operating Temperature (Full Load)32°F – 113°F (0°C – 45°C)
Storage Temperature5°F – 140°F (-15°C – 60°C)
Cooling MethodFan
Weight104.7 lbs (47.5 kg)

Understanding Your Power Needs

Power Calculation Guide

Sizing Metric Formula & Example
Energy Consumption (Wh) Formula: Watts × Hours
Example: 60W × 4 hrs = 240 Wh
Battery Capacity (Ah) Formula: Watt-hours ÷ System Voltage (V)
Example: 240 Wh ÷ 12V = 20 Ah
Inverter Size (W) Formula: Total Watts × 1.25 (safety margin)
Example: 300W × 1.25 = 375W → Use 400W inverter
Total Load Power (W) Formula: Sum of all appliance watts used simultaneously
Example: Light (10W) + Fan (75W) = 85W
Runtime (hrs) of Battery Formula: (Battery Ah × Voltage) ÷ Total Load (W)
Example: (100Ah × 12V) ÷ 240W = 5 hrs

Find Your Power Match

Need / Application System Recommendation
Basic lighting + phone charging Recommended Battery: 50Ah – 100Ah (12V)
Inverter Size: 100W – 200W
Notes: For small backup setups
Home office (laptop, fan, TV) Recommended Battery: 150Ah – 200Ah (12V or 24V)
Inverter Size: 500W – 1000W
Notes: For moderate usage with 4–6 hours of backup
Home backup (fridge, lights) Recommended Battery: 200Ah+ (24V or 48V recommended)
Inverter Size: 1000W – 1500W
Notes: Ideal for longer backups or heavier loads
Business / shop power backup Recommended Battery: 300Ah+ (48V system)
Inverter Size: 2000W – 3000W
Notes: Suitable for commercial setups or extended power outages

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  • Expert Energy Guidance: Our solar and backup energy specialists are here to help with system design, product questions, and installation tips.
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  • Built for Energy Independence: Whether powering a cabin, prepping for emergencies, or going off-grid, our products are chosen for performance, reliability, and sustainability.

EG4 All Weather Battery – EG4 12000XP V2 Hybrid Inverter (ESS) | 14.3-85.8 kWh | Off-Grid Home Solar System (24kW-72kW PV)

$5,193.97