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EG4-WallMount Indoor Battery 280AH | Signature Solar

EG4-WallMount Indoor Battery | 48V 280Ah | 14.3kWh | Indoor | Heated UL1973, UL9540A | 10-Year Warranty

$3,699.95
$258.67 / Kilowatt-hour

SKU:
1511092
Kilowatt-hour(s):
14.3kWh
Spec Sheet:
Quick Start Guide:
COC (UL 1973):
COC (UL 9540):
Test Verification of Conformity (UL 9540A):

DUE TO HIGH DEMAND, THIS ITEM IS CURRENTLY ON BACKORDER. EXPECTED TO ARRIVE LATE JUNE!

EG4-WallMount Indoor Battery | 48V 280Ah | 14.3kWh | Indoor | Heated UL1973, UL9540A | 10-Year Warranty

The WallMount Indoor 14.3kWh batteries are ideal for low-voltage residential indoor energy storage applications. The batteries use lithium iron phosphate cells with the highest safety performance and an intelligent Battery Management System (BMS) that can monitor and record the voltage of each cell along with the current, voltage, and temperature of the module in real-time. The BMS also contains a passive balance function and an advanced battery control method, both of which improve the performance of the battery pack.

Key Features:

ON-BOARD LCD TOUCH SCREEN
Easy to see BMS monitoring, and selectable closed-loop communications with EG4, Schneider, Sol-Ark, Victron, Growatt, Megarevo, Luxpower, and Deye inverters.

DUAL ON-BOARD FIRE ARRESTORS
Offer fail-safe protection against thermal runaway.

INTEGRATED SELF-HEATING FEATURE
Internal heating keeps cells operating during cold temperatures.

INTEGRATED BUSBARS
The battery design comes manufactured with 600A internal busbars with multiple terminals (4 positive & 4 negative) eliminating the need for external busbars when paralleling batteries and/or multiple inverters.

INNOVATIVE EMERGENCY STOP FUNCTION
The optional ESS disconnect can shut down all batteries and inverters (if equipped with rapid shut down capability) with the press of a button.

THE PERFECT PARTNER TO EG4 INVERTERS
The optional conduit box mates up directly to the connection ports of EG4 inverters allowing a sleek and efficient installation. For other inverters or stand-alone battery installation, the conduit box plugs should be installed.

Module Operating Parameters

  • Voltage: 51.2V
  • Total Energy Capacity: 14.3kWh
  • Capacity: 280Ah
  • Charging Voltage (Bulk/Absorb): 56.0V (+/-0.8V) to 56.2V (+/-0.2V)
  • Float Voltage: 54V (+/-0.2V)
  • Low DC Cutoff: 44.8V (adjustable start from 47V to 45.6V)
  • Charging Current: Up to 200A (continuous), recommended range: 60A - 160A
  • Discharging Current: Up to 200A (continuous), recommended: 160A

Environmental Parameters

  • Charging Range: 32°F to ≈113°F (0°C to ≈45°C)
  • Discharging Range: -4°F to ≈122°F (-20°C to ≈50°C)
  • Storage Range: -4°F to ≈122°F (-20°C to ≈50°C)
  • Ingress Protection: IP20

Charging/Discharging Protection

  • Overcharging Protection: >205A (10 sec), >225A (3 sec)
  • Temperature Protection: <23°F or >158°F (1 sec), <-5°C or >70°C (1 sec)

General Specifications

  • Communication Ports: RS485/CAN Can be customized
  • Cycle Life: >8000 Cycles, 80% Depth of Discharge (DOD)
  • Design Life: Over 15 Years
  • Weight: 282.2 lbs. (128 kg)
  • Safety Certifications: UL1973, UL 9540A (Testing)
Kilowatt-hour(s):
14.3kWh
Spec Sheet:
Quick Start Guide:
COC (UL 1973):
COC (UL 9540):
Test Verification of Conformity (UL 9540A):
10-Year Standard Warranty
Customer Reviews
4.9 Based on 34 Reviews
5 ★
97% 
33
4 ★
0% 
0
3 ★
3% 
1
2 ★
0% 
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DM
05/09/2025
Donald M.
United States

Excellent product

Smart, powerful battery with good support

Signature Solar EG4-WallMount Indoor Battery | 48V 280Ah | 14.3kWh | Indoor | Heated UL1973, UL9540A | 10-Year Warranty Review
SG
05/05/2025
SAM G.
United States

So far it seems to be great

It's real heavy but comes in a wooden shipping box so it was well protected. Easily connected it to my Flexboss 18 with the provided cables. Seems to be working great so far. Makes sure you order the indoor conduit tray not the outdoor one as it does not fit properly on this battery.

Signature Solar EG4-WallMount Indoor Battery | 48V 280Ah | 14.3kWh | Indoor | Heated UL1973, UL9540A | 10-Year Warranty Review
GS
04/29/2025
GARFIELD S.
United States

5 star review ✨️

It was a great experience and I was very happy.

JV
04/29/2025
Joe V.
United States

Nice product. I wish the documentation reflected installations with a 6000XP, since you bundle it that way.

So far still in overall installation mode of the entire system. This is new, from the ground up..

AT
04/28/2025
Abel T.
United States

All good so far

Easy to install but very heavy