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EG4 WallMount 280Ah Indoor Lithium Battery | 48V | 14.3kWh | UL9540A | Self-Heating

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SKU: FEWMT-48143-G1
$3,109.00

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The EG4 WallMount 280Ah Indoor Lithium Battery Delivers Reliable Energy Storage So That Your Power Stays On When It Matters Most

When power outages interrupt your day or energy costs keep climbing, you need a battery system that works quietly in the background and performs when you need it most. The EG4 WallMount 280Ah Indoor Lithium Battery is built for dependable, long-term energy storage, giving homeowners, RVers, and off-grid users confidence and control over their power.

With a robust 14.3kWh capacity, this indoor wall-mounted battery provides consistent backup energy for essential appliances, tools, and systems. Whether you are preparing for outages, optimizing solar usage, or building a complete off-grid setup, this system is designed to keep your life running smoothly.

At its core is advanced lithium iron phosphate chemistry, widely known for its safety, stability, and long lifespan. Unlike traditional lead-acid batteries that degrade quickly and require frequent maintenance, this system delivers over 8,000 cycles at 80% depth of discharge. That means years of reliable performance without constant replacements or upkeep.


EG4 WallMount 280Ah Indoor Lithium Battery Features

High Capacity Energy Storage So That You Can Power More With Confidence

With 14.3kWh of usable energy, this battery supports essential appliances, lighting, and electronics during outages or off-grid use. It gives you dependable power coverage for longer periods without worrying about sudden interruptions.

Long Cycle Life For Reliable Power Over Many Years

Delivering over 8,000 charge cycles at 80% depth of discharge, this system is built for longevity. Compared to traditional batteries, it reduces replacement costs and provides consistent performance year after year.

Advanced Battery Management System For Safe And Stable Operation

The integrated BMS continuously monitors voltage, temperature, and performance to protect your system. This ensures safe operation while maximizing efficiency, helping you get the most out of every charge cycle.

LCD Touchscreen Display So That You Stay In Control At All Times

The built-in display provides real-time data on battery performance, charge levels, and system health. This makes it easy to monitor and manage your energy system without complex tools or guesswork.

Automatic Self Heating For Reliable Performance In Cold Conditions

Cold weather can impact battery efficiency, but the automatic self-heating feature keeps the system operating smoothly. This ensures consistent performance even in lower temperature environments.

Emergency Stop Function For Immediate System Shutdown When Needed

Safety is a priority with the integrated emergency stop feature. It allows you to quickly shut down the system in critical situations, giving you added peace of mind during operation.

Seamless Inverter Integration For Flexible Energy System Design

With RS485 and CANBus communication, this battery connects easily with leading hybrid inverters. It supports both grid-tied and off-grid setups, making it adaptable to a wide range of energy systems.


EG4 WallMount 280Ah Indoor Lithium Battery Warranty

EG4 provides a 10-year warranty policy, ensuring the absence of defects in materials, workmanship, and performance during the warranty period.


What's Included

  • 1 x EG4 WallMount 280Ah Indoor 48V 14.3kWh Battery
  • 1 x Mounting Plate
  • 1 x X Bracket
  • 6 x Expansion Bolts
  • 1 x Set 1/0 AWG Red & Black Power Cable
  • 1 x Comm Cable


EG4 WallMount 280Ah Indoor Lithium Battery Specifications

System Voltage 48V
Nominal Voltage 51.2V
Chemistry LiFePO4
kWh Capacity 14.3 kWh
Ah Capacity 280 Ah
BMS Charging Voltage (Bulk/Absorb) 56V (±0.8V)
Recommended Charging Voltage (Bulk/Absorb) 56.2V (±0.2V)
Recommended Float Setting 54V (±0.2V)
Recommended SoC Cutoff Setting 20%
Max Continuous Charge/Discharge Current 200A
Recommended Charge Current 60 – 160A
Recommended Discharge Current 160A
Max Continuous Discharge Rate 10,240W
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)


EG4 WallMount 314Ah Indoor Battery Manual

EG4_WallMount_280Ah_Manual

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