EG4 280Ah Indoor Battery – EG4 12000XP V2 Hybrid Inverter (ESS) | 14.3-85.8 kWh | Off-Grid Home Solar System (24kW-72kW PV)
EG4 280Ah Indoor Battery – EG4 12000XP V2 Hybrid Inverter (ESS) | 14.3-85.8 kWh | Off-Grid Home Solar System (24kW-72kW PV) - Image 2
EG4 280Ah Indoor Battery – EG4 12000XP V2 Hybrid Inverter (ESS) | 14.3-85.8 kWh | Off-Grid Home Solar System (24kW-72kW PV) - Image 3
EG4 280Ah Indoor Battery – EG4 12000XP V2 Hybrid Inverter (ESS) | 14.3-85.8 kWh | Off-Grid Home Solar System (24kW-72kW PV) - Image 4
EG4 280Ah Indoor Battery – EG4 12000XP V2 Hybrid Inverter (ESS) | 14.3-85.8 kWh | Off-Grid Home Solar System (24kW-72kW PV) - Image 5

Product Summary:

The EG4 280Ah Indoor Battery + EG4 12000XP ESS System is a powerful, scalable energy solution designed for both on-grid and off-grid applications. Combining high-capacity 14.3kWh EG4 WallMount Indoor LiFePO₄ batteries with the advanced EG4 12000XP hybrid inverter, this system delivers reliable, efficient energy for residential and commercial use.

 

Starting at 14.3kWh and expandable up to 85.8kWh, this system adapts to growing energy demands while maintaining consistent performance. 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 grid.

 

Built with advanced LiFePO₄ battery technology, 8,000+ cycle life, and an intelligent Battery Management System (BMS), the system ensures long-term reliability and safety. Features like self-heating, integrated safety protections, and closed-loop communication provide dependable performance, while smart energy controls support backup power, peak shaving, and energy savings.

Ships From: Texas, USA
Warranty: 10 Years (Battery), 5 Years (Inverter)
Support: Lifetime USA-Based Tech Support

 

Compatibility

Integrated & Optimized System:

  • EG4 280Ah Indoor Battery + EG4 12000XP Hybrid Inverter

Expandable & Flexible:

  • Expand battery capacity from 14.3kWh up to 85.8kWh
  • Supports grid-tied, hybrid, and off-grid installations
  • Compatible with solar + generator input configurations
Key Features
  • Complete ESS Solution – Battery + inverter system designed to work seamlessly together
  • 12,000W Split-Phase Output – Reliable power for whole-home and commercial applications
  • 24,000W PV Input – High solar capacity with dual MPPT optimization
  • 14.3kWh LiFePO₄ Battery Modules – Safe, high-capacity indoor energy storage
  • 200A Continuous Output (~9.6kW per battery) – Supports high-demand loads
  • 8,000+ Cycle Life – Long-lasting performance at 80% DoD
  • Advanced BMS & Safety Features – Real-time monitoring and system protection
  • Self-Heating Function – Reliable operation in colder environments
  • Closed-Loop Communication – Seamless coordination between battery and inverter
  • Smart Energy Management – Supports peak shaving, load control, and AC coupling
  • Wall-Mount Indoor Design – Clean, space-saving installation
  • Maintenance-Free Operation – No routine servicing required

A high-capacity, scalable energy storage system built for performance, safety, and long-term energy independence.

EG4 280Ah Indoor Battery – EG4 12000XP V2 Hybrid Inverter (ESS) | 14.3-85.8 kWh | Off-Grid Home Solar System (24kW-72kW PV)

$5,820.00$5,130.00
YOU SAVED: $690.00
SKU# K0173

Battery Selected

1× EG4 280Ah Indoor

Total Capacity

14.3 kWh

Inverter Selected

1× EG4 12000XP

Input / Output

24 kW / 12 kW

Choose Your Inverter Option*

EG4 6000XP EG4 12000XP None

Choose Your Battery Option*

EG4 280Ah All Weather EG4 280Ah Indoor None

Choose Your Inverter Option*

EG4 6000XP EG4 12000XP None

Choose Your Battery Option*

BigBattery NEXUS BigBattery ETHOS BigBattery HUSKY2 INV EG4 280Ah All Weather EG4 280Ah Indoor None

Choose Your ESS Configuration*

1x Inverter

Standard

2x Inverter

Large

3x Inverter

3 Phase

SKU: K0132-V Category:
Free Shipping on orders $5000+

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See More On YouTube

Battery Downloads

SKU#:K0173, K0132, K0133, K0174, K0175, K0176, K0177
Spec Sheet:DownloadDOWNLOAD
Quick Start Guide:DownloadDOWNLOAD
UL9540A Certificate:DownloadDOWNLOAD
UL1973 Certificate:DownloadDOWNLOAD
Connection Guide:DownloadDOWNLOAD
Monitoring & Settings Guide:DownloadDOWNLOAD
Maintenance Guide:DownloadDOWNLOAD
Firmware Update Guide:DownloadDOWNLOAD
CEC Listing- EG4 WallMount Indoor:Go to linkGO TO LINK

Battery Specifications

System Voltage:48V
Nominal Voltage:51.2V
Chemistry:LiFePO4
kWh Capacity:14.3kWh
Ah Capacity:280Ah
BMS Charging Voltage (Bulk/Absorb):56V (±0.8V)
Rec. Charging Voltage (Bulk/Absorb):56.2V (±0.2V)
Rec. Float Setting:54V (±0.2V)
Rec. SoC Cutoff Setting:20%
Max. Continuous Charge/Discharge Current:200A
Rec. Charge Current:60 – 160A
Rec. Discharge Current:160A
Max Continuous Discharge Rate:10240W
Voltage:56V
Power Consumption:224W
Internal Temperature Cutoffs:≤32ºF (On) | ≥41ºF (Off)
Charging Temperature Range:32ºF – 113ºF (0ºC – 45ºC)
Discharging Temperature Range:-4ºF – 122ºF (-20ºC – 50ºC)
Storage Temperature Range:-4ºF – 122ºF (-20ºC – 50ºC)
Protection Rating:IP20
Communications:RS485 | CANBus
Weight:282.2 lbs (128 kg)
Depth:9.6 in (245 mm)
Width:18.1 in (460 mm)
Height:36.4 in (925 mm)

Inverter Downloads

SKU:K0173, K0132, K0133, K0174, K0175, K0176, K0177
Spec Sheet:DownloadDOWNLOAD
User Manual:DownloadDOWNLOAD
UL1741 Certificate:DownloadDOWNLOAD
UL9540 Certificate:DownloadDOWNLOAD
WiFi Configuration Guide:DownloadDOWNLOAD
CEC Listing – EG4 12000XP:Go to linkGO TO LINK

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)
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:5 – 95% (Non-Condensing)
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 & Inverter

EG4 12000XP Inverter: 5-Year EG4 Manufacturer Warranty

EG4 Wallmount 280Ah Indoor Battery: 10-Year EG4 Manufacturer Warranty

.

See More On YouTube

Battery Downloads

SKU#:K0173, K0132, K0133, K0174, K0175, K0176, K0177
Spec Sheet:DownloadDOWNLOAD
Quick Start Guide:DownloadDOWNLOAD
UL9540A Certificate:DownloadDOWNLOAD
UL1973 Certificate:DownloadDOWNLOAD
Connection Guide:DownloadDOWNLOAD
Monitoring & Settings Guide:DownloadDOWNLOAD
Maintenance Guide:DownloadDOWNLOAD
Firmware Update Guide:DownloadDOWNLOAD
CEC Listing- EG4 WallMount Indoor:Go to linkGO TO LINK

Battery Specifications

System Voltage:48V
Nominal Voltage:51.2V
Chemistry:LiFePO4
kWh Capacity:14.3kWh
Ah Capacity:280Ah
BMS Charging Voltage (Bulk/Absorb):56V (±0.8V)
Rec. Charging Voltage (Bulk/Absorb):56.2V (±0.2V)
Rec. Float Setting:54V (±0.2V)
Rec. SoC Cutoff Setting:20%
Max. Continuous Charge/Discharge Current:200A
Rec. Charge Current:60 – 160A
Rec. Discharge Current:160A
Max Continuous Discharge Rate:10240W
Voltage:56V
Power Consumption:224W
Internal Temperature Cutoffs:≤32ºF (On) | ≥41ºF (Off)
Charging Temperature Range:32ºF – 113ºF (0ºC – 45ºC)
Discharging Temperature Range:-4ºF – 122ºF (-20ºC – 50ºC)
Storage Temperature Range:-4ºF – 122ºF (-20ºC – 50ºC)
Protection Rating:IP20
Communications:RS485 | CANBus
Weight:282.2 lbs (128 kg)
Depth:9.6 in (245 mm)
Width:18.1 in (460 mm)
Height:36.4 in (925 mm)

Inverter Downloads

SKU:K0173, K0132, K0133, K0174, K0175, K0176, K0177
Spec Sheet:DownloadDOWNLOAD
User Manual:DownloadDOWNLOAD
UL1741 Certificate:DownloadDOWNLOAD
UL9540 Certificate:DownloadDOWNLOAD
WiFi Configuration Guide:DownloadDOWNLOAD
CEC Listing – EG4 12000XP:Go to linkGO TO LINK

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)
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:5 – 95% (Non-Condensing)
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 & Inverter

EG4 12000XP Inverter: 5-Year EG4 Manufacturer Warranty

EG4 Wallmount 280Ah Indoor Battery: 10-Year EG4 Manufacturer Warranty

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