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EG4 48V WallMount Indoor LiFePO4 Battery (14.3kWh-57.3kWh) + 12kPV 8000W 48V Split Phase Hybrid Inverter
by EG4

EG4 48V WallMount Indoor LiFePO4 Battery (14.3kWh-57.3kWh) + 12kPV 8000W 48V Split Phase Hybrid Inverter

SKU: K0110
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$8,648.74
$8,648.74 - $26,466.16
$8,648.74
$6,918.99
$6,918.99 - $21,172.93
$6,918.99
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Bundle Options: 1 x Indoor Battery + 12kPV Hybrid Inverter

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Off Grid Stores is an authorized retailer of EG4 products. Because of this, we pass on EG4's manufacturer warranty to you.

Product Highlights

Suitable For

  • RESIDENTIAL POWER SYSTEMS
  • HOME SOLAR SYSTEMS
  • CABINS & TINY HOMES
  • FAMILY HOMES & MANSIONS
  • OFF-GRID HOMESTEADS
  • EMERGENCY POWER
  • WHOLE HOME BACKUP
  • COMMERCIAL SYSTEMS
  • WHOLE OFFICE BACKUP
  • LEAD ACID REPLACEMENT

Features

  • WALL-MOUNTABLE DESIGN
  • AUTOMATIC SELF-HEATING
  • TOUCH SCREEN LCD DISPLAY
  • PASSIVE CELL BALANCING
  • INTEGRATED 600A BUSBARS
  • DUAL INTERNAL FIRE ARRESTORS
  • EMERGENCY DISCONNECT FUNCTION
  • ZERO MAINTENANCE REQUIRED
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EG4 48V WallMount Indoor LiFePO4 Battery (14.3kWh-57.3kWh) + 12kPV 8000W 48V Split Phase Hybrid Inverter

EG4 48V WallMount Indoor LiFePO4 Battery (14.3kWh-57.3kWh) + 12kPV 8000W 48V Split Phase Hybrid Inverter


Introducing the EG4 ESS WallMount-12kPV, a compact yet powerful energy storage solution designed for residential and commercial applications. This system combines a 48V 14.3kWh WallMount Indoor Battery with an 8kVA hybrid inverter, delivering reliable power, seamless integration, and advanced safety features.

At the heart of this system lies the 48V 14.3kWh WallMount Indoor Battery, constructed with LiFePO₄ cells—the safest lithium chemistry available. It boasts a lifespan of over 8,000 cycles at 80% depth of discharge, equating to 82.6MWh of lifetime energy production. The battery’s IP20-rated enclosure houses an intelligent Battery Management System (BMS) that continuously monitors voltage, current, and temperature in real-time. Features such as passive cell balancing, an automatic self-heating function, dual fire extinguishers, and an emergency stop function ensure optimal performance and safety. An integrated LCD touchscreen display provides real-time system status updates.

Complementing the battery is the EG4 8kW (12kPV) Hybrid Inverter, capable of handling up to 12kW of photovoltaic input. This inverter facilitates seamless transitions between grid and battery power, ensuring uninterrupted energy supply. Its design supports efficient energy management, making it suitable for various applications.

The EG4 ESS WallMount-12kPV 14.3kWh 8kVA system is UL-certified, ensuring compliance with stringent safety and performance standards. With a 12-year warranty applied to BigBattery batteries, this system offers a reliable and efficient solution for those seeking energy independence and protection against power outages.

Specifications:

EG4 48V 14.3kWh WallMount Indoor Battery
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
HEATER
Voltage 56V
Power Consumption 224W
Internal Temperature Cutoffs ≤32ºF (On) | ≥41ºF (Off)
OPERATING ENVIRONMENT
Charging Temperature Range 32ºF – 113ºF
Discharging Temperature Range -4ºF – 122ºF
Storage Temperature Range -4ºF – 122ºF
Protection Rating IP20
Communications RS485 | CANBus
DIMENSIONS
Weight 282.2 lbs
Depth 9.6 in
Width 18.1 in
Height 36.4 in
EG4 12kPV 8000W 48V Split Phase Hybrid Inverter
AC INPUT
Nominal AC Voltage 120/240VAC | 120/208VAC
(L1/L2/N required)
Frequency 50 Hz | 60 Hz
Max. AC Input Power 12000W
Max. AC Bypass 200A
Min. Generator Size 5000W
Max. Passthrough Current
(Generator | Grid)		 80A | 80A
AC GRID OUTPUT
Output Voltage 120/240VAC | 120/208VAC
Max. Output Current 33.3A @ 240VAC | 38.5A @ 208VAC
Nominal Output Power 8000W
Output/Operating Frequency 50 Hz | 60 Hz
Surge Capacity 16000W (0.5 sec) | 12000W (1 sec) |
10000W (1 min) | 8800W (12 min)
Max. Continuous Line Wattage: 4000W
Power Factor: 0.99 (Full Load)
Reactive Power Adjustment Range -0.8 – 0.8
Total Harmonic Distortion <3% (Full Load)
Transfer Time 10 – 20 ms (Single) / 20 ms (Parallel)
AC BACKUP / UPS OUTPUT
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
PV INPUT
No. of MPPTs (Inputs per MPPT) 2 (2)
Max. Input Current (per MPPT) 25A
Max. Short Circuit Input Current
(per MPPT)		 31A
DC Input Voltage Range 100 – 600VDC
Start Up Voltage 100VDC
MPPT Operating Voltage Range 120 – 500VDC
Nominal MPPT Voltage 360VDC
Max. PV Array Power 12000W
Max. Recommended PV Input 15000W
Max. Efficiency 99.9% (PV to Battery) |
97.5% (PV to Grid) |
94% (Battery to Grid) |
96.4% (CEC Weighted Efficiency)
Idle Consumption (Standby Mode) <55W
BATTERY
Nominal Voltage 48VDC
Voltage Range 40 – 60VDC
Max. Charge / Discharge Current 167A @ 48VDC
Recc. Battery Capacity per Inverter >200 Ah
OPERATING ENVIRONMENT
Operating / Storage
emperature Range		 -13ºF – 140ºF
Altitude <6,561 ft (2000 m)
Relative Humidity 0 – 100%
Typical Noise Emission <50 dB @ 3 ft
Protection Rating IP66 | NEMA 4X
Communications RS485 / CANBus / WiFi
Max. Parallel Connections 10
DIMENSIONS
Weight 110 lbs
Depth 11.2 in
Width 20.5 in
Height 29.5 in

PACKAGE INCLUDES

EG4 48V 14.3kWh WallMount Indoor LiFePO4 Battery + 8kW (12kPV) Hybrid Inverter

EG4 48V 14.3kWh WallMount Indoor Battery

x 1

Mounting Bracket

x 1

Concrete Expansion Bolts

x 6

Red & Black Battery to Inverter Power Cables (3.3 FT)

x 2

Battery to Inverter Comm Cable (5 FT)

x 1

EG4 Indoor Buildable Conduit Box

x 1

EG4 12kPV 8000W 48V Split Phase Hybrid Inverter

x 1

Product Documents:

EG4 48V 14.3kWh WallMount Indoor Battery User Manual

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EG4 48V 14.3kWh WallMount Indoor Battery User Manual

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EG4 12kPV 8000W 48V Split Phase Hybrid Inverter User Manual

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EG4 12kPV 8000W 48V Split Phase Hybrid Inverter Certification Of Compliance

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EG4 12kPV 8000W 48V Split Phase Hybrid Inverter Specification Sheet

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