Product Summary:
The EG4 280Ah Indoor Battery + EG4 18kPV ESS System is a powerful, all-in-one energy solution designed for both on-grid and off-grid applications. Combining the 14.3kWh EG4 WallMount Indoor LiFePO₄ battery with the high-performance EG4 18kPV hybrid inverter, this system delivers reliable, efficient, and intelligent energy management for residential and small commercial use.
The 18kPV inverter provides up to 12,000W continuous output with 18,000W PV input and 3 MPPTs, enabling maximum solar production and seamless power management between solar, battery, and grid. Paired with the indoor WallMount battery – featuring 8,000+ cycle life, advanced BMS protection, self-heating, and emergency stop capability – this system ensures safe, long-lasting performance.
Designed with UL 9540 certified configurations, advanced battery management, and U.S.-engineered components, this system ensures safe, maintenance-free performance with seamless closed-loop communication and real-time monitoring.
Ships From: Texas, USA
Warranty: 10 Years (Battery), 10 Years (Inverter)
Support: Lifetime USA-Based Tech Support
Compatibility
Integrated & Optimized System:
- EG4 280Ah Indoor Battery + EG4 18kPV Hybrid Inverter
Expandable & Flexible:
- Add additional batteries for increased storage capacity
- 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
- 18,000W PV Input / 12,000W Output – High-capacity power for residential systems
- 3 MPPT Inputs – Maximizes solar production across multiple arrays
- 14.3kWh LiFePO₄ Battery – Safe, high-capacity indoor energy storage
- 8,000+ Cycle Life – Long-lasting performance at 80% DoD
- Advanced BMS & Safety Features – Includes real-time monitoring, self-heating, and E-Stop
- Closed-Loop Communication – Seamless coordination between battery and inverter
- UPS Backup (15–30ms) – Fast, seamless transition during outages
- Smart Energy Management – Supports peak shaving and load control
- Remote Monitoring & Control – Real-time system tracking and performance insights
- Wall-Mount Indoor Design – Clean, space-saving installation
- Maintenance-Free Operation – No routine servicing required
A high-performece, space-efficient energy storage system built for performance, flexibility, and long-term energy independence.
EG4 Wallmount 280Ah Indoor Battery & 18kPV Hybrid Inverter (ESS) | 14.3–42.9kWh | UL9540 | Grid-Tied Home Solar System (18kW PV)
$8,125.00
SKU# K0112
Battery Selected
1× EG4 280Ah Indoor
Total Capacity
14.3 kWh
Inverter Selected
1× EG4 18kPV
Input / Output
18 kW / 12 kW
Choose Your ESS Configuration*
1x Inverter
Standard
2x Inverter
Large
Quantity:
.
See More On YouTube
Battery Downloads
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#:K0112
Spec Sheet:
DOWNLOAD
DOWNLOADUser Manual:DOWNLOAD
DOWNLOADUL 1741 Certificate:DOWNLOAD
DOWNLOADUL 1741 CRD PCS Test Verification Of Conformity Security:DOWNLOAD
DOWNLOADRapid Shut Down Wiring Guide:DOWNLOAD
DOWNLOADWhitepapers, Firmware, & Wiring Diagrams:
GO TO LINK
GO TO LINKCEC Listing – EG4 18kPv:GO TO LINK
GO TO LINKInverter Specifications
AC Voltage:120V AC / 240V AC
AC Frequency:50 Hz / 60 Hz
Nominal Voltage:51.2V
Max. Continuous AC Current:50A @ 240V AC
Max. AC Input Power:12000W
Max. AC Bypass:200A
Operating Voltage Range:180 – 270V AC
Output Voltage:120V AC / 240V AC
Max. Continuous Output Current:50A
Output Power:12000W
BMS Cutoff Range:42 – 47V
Surge Capacity (with PV):14700W (10 min) / 15500W (5 min)
Surge Capacity (without PV):13500W (10 min)
Max. Continuous Line Wattage:6000W
Power Factor:0.99 (Full Load)
Reactive Power Adjustment Range:0.8 ~ 0.8 Leading Adjustable
Total Harmonic Distortion:<5% (Full Load)
Transfer Time:10 – 20 ms (Single) / 20 ms (Parallel)
Max. Continuous Output Current:50A
AC Bypass (Generator):90A
Output Voltage:120V AC / 240V AC
Output Power:12000W
Max. Continuous Line Wattage:8000W (per 120V)
Operating Voltage Range:180 – 270V AC
Output Frequency:50 Hz / 60 Hz
Max. Output Power (with PV):14700W (10 min) / 15500W (5 min)
Max. Output Power (without PV):13500W (10 min)
Total Harmonic Distortion Voltage:<5%
Switching Time:10 ms
No. of MPPTs:3
Inputs per MPPT:2 (MPPT 1) / 1 (MPPT 2 & 3)
Max. Input Current:25A (MPPT 1) / 15A (MPPT 2 & 3)
Max. Short Circuit Input Current:31A (MPPT 1) / 19A (MPPT 2 & 3)
DC Input Voltage Range:100 – 600V DC
Start Up Voltage:100V DC
MPPT Operating Voltage Range:140 – 500V DC
MPPT Voltage:360V DC
Max. PV Array Power:18000W
Max. Efficiency:94 – 99.9%
Idle Consumption:~70W (Normal) / ~18W (Standby Mode)
Nominal Voltage:48V DC
Voltage Range:40 – 60V DC
Max. Charge / Discharge Current:250A
Recc. Battery Capacity per Inverter:>200 Ah
Operating / Storage Temperature Range:-13ºF – 140ºF (-25ºC – 60ºC)
Altitude:<6,561 ft (2000 m)
Relative Humidity:0 – 100%
Typical Noise Emission:68 dB @ 3 ft
Protection Rating:IP65 / NEMA 4X
Communications:RS485 / CANBus / WiFi
Max. Parallel Connections:10
Weight:121 lbs (55 kg)
Depth:11.2 in (285 mm)
Width:20.5 in (520 mm)
Height:34.3 in (871 mm)
Compare Battery & Inverter
EG4 18kPV Inverter: 10-Year EG4 Manufacturer Warranty
EG4 Indoor Battery: 10-Year EG4 Manufacturer Warranty
.
See More On YouTube
Battery Downloads
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#:K0112
Spec Sheet:DOWNLOAD
DOWNLOADUser Manual:DOWNLOAD
DOWNLOADUL 1741 Certificate:DOWNLOAD
DOWNLOADUL 1741 CRD PCS Test Verification Of Conformity Security:DOWNLOAD
DOWNLOADRapid Shut Down Wiring Guide:DOWNLOAD
DOWNLOADWhitepapers, Firmware, & Wiring Diagrams:GO TO LINK
GO TO LINKCEC Listing – EG4 18kPv:GO TO LINK
GO TO LINKInverter Specifications
AC Voltage:120V AC / 240V AC
AC Frequency:50 Hz / 60 Hz
Nominal Voltage:51.2V
Max. Continuous AC Current:50A @ 240V AC
Max. AC Input Power:12000W
Max. AC Bypass:200A
Operating Voltage Range:180 – 270V AC
Output Voltage:120V AC / 240V AC
Max. Continuous Output Current:50A
Output Power:12000W
BMS Cutoff Range:42 – 47V
Surge Capacity (with PV):14700W (10 min) / 15500W (5 min)
Surge Capacity (without PV):13500W (10 min)
Max. Continuous Line Wattage:6000W
Power Factor:0.99 (Full Load)
Reactive Power Adjustment Range:0.8 ~ 0.8 Leading Adjustable
Total Harmonic Distortion:<5% (Full Load)
Transfer Time:10 – 20 ms (Single) / 20 ms (Parallel)
Max. Continuous Output Current:50A
AC Bypass (Generator):90A
Output Voltage:120V AC / 240V AC
Output Power:12000W
Max. Continuous Line Wattage:8000W (per 120V)
Operating Voltage Range:180 – 270V AC
Output Frequency:50 Hz / 60 Hz
Max. Output Power (with PV):14700W (10 min) / 15500W (5 min)
Max. Output Power (without PV):13500W (10 min)
Total Harmonic Distortion Voltage:<5%
Switching Time:10 ms
No. of MPPTs:3
Inputs per MPPT:2 (MPPT 1) / 1 (MPPT 2 & 3)
Max. Input Current:25A (MPPT 1) / 15A (MPPT 2 & 3)
Max. Short Circuit Input Current:31A (MPPT 1) / 19A (MPPT 2 & 3)
DC Input Voltage Range:100 – 600V DC
Start Up Voltage:100V DC
MPPT Operating Voltage Range:140 – 500V DC
MPPT Voltage:360V DC
Max. PV Array Power:18000W
Max. Efficiency:94 – 99.9%
Idle Consumption:~70W (Normal) / ~18W (Standby Mode)
Nominal Voltage:48V DC
Voltage Range:40 – 60V DC
Max. Charge / Discharge Current:250A
Recc. Battery Capacity per Inverter:>200 Ah
Operating / Storage Temperature Range:-13ºF – 140ºF (-25ºC – 60ºC)
Altitude:<6,561 ft (2000 m)
Relative Humidity:0 – 100%
Typical Noise Emission:68 dB @ 3 ft
Protection Rating:IP65 / NEMA 4X
Communications:RS485 / CANBus / WiFi
Max. Parallel Connections:10
Weight:121 lbs (55 kg)
Depth:11.2 in (285 mm)
Width:20.5 in (520 mm)
Height:34.3 in (871 mm)
Compare Battery & Inverter
EG4 18kPV Inverter: 10-Year EG4 Manufacturer Warranty
EG4 Indoor Battery: 10-Year EG4 Manufacturer Warranty
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