Batteries

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

$ 3,109USD · price may vary

Model: 1511092
Specifications: 0

Overview

WALLMOUNT INDOOR LITHIUM BATTERY

The EG4 WallMount Indoor Lithium Battery are ideal for low- voltage residential outdoor energy storage system (ESS) 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.

BUILT-IN 200A BMS

INTEGRATED 600A BUSBARS

82.6MWh LIFETIME PRODUCTION*

10 YEAR WARRANTY > 8000 CYCLES @ 80% DOD

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

Heats the battery when the ambient temperature is low.

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.

The EG4 Indoor Buildable Conduit Box guards cables and connections between your battery and inverter, for added safety and protection against accidental damage. The conduit box is designed to pair the EG4 WallMount Indoor 280Ah Lithium Battery with EG4 18kPV, 12kPV, or 6000XP inverters, ensuring a versatile fit for your energy storage system. The unit is equipped with side knockouts for battery-to-battery cable runs between paralleled batteries.

FEATURES AND BENEFITS

Direct fit combination of EG4 18kPV, 12kPV, or 6000XP inverters with EG4 WallMount Indoor 280Ah Lithium Batteries

Protects cables and connections between EG4 inverters and batteries

Protects cables and connections on paralleled batteries, with side knockouts for battery-to- battery cable runs

Multiple side and top knockouts for custom use with non-EG4 inverters

Box size allows for proper wire spacing per NEC code

Easy and rapid assembly with included hardware

Compact flatpack for easy shipping

EG4 WallMount Indoor Lithium Battery Specifications

Voltage 51.2V

Capacity 280Ah

Charging Voltage (BULK/ABSORB) 56.0V (+/-0.8V)

Low DC Cutoff 44.8V

Charging Current 100/140/200A

Discharging Current 200A (Max. continuous)

Charging Range 32° 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

Cell Balance 120mA

Temperature Accuracy 3%

Voltage Accuracy 0.5%

Current Accuracy 3%

SOC 5%

Power Consumption Sleep & Off Mode <300uA

Power Consumption Operating Mode <25mA

Communication Ports RS485/CAN

Voltage 56V

Power Consumption 224W

Internal Battery Temperature ≤32°F (0°C)/≥41°F (5°C)

Dimensions (H×W×D) 36.4 in.×18.1 in.×9.6 in. (92.5 cm×46 cm×24.5 cm)

Weight 282 lbs. (128 kg)

Design Life >15 Years

Cycle Life >8000 Cycles, 0.5C 80% DOD

Lifetime Production 82.6MWh*

Still have questions? Give us a call at 877-242-2792

What these specifications mean

Detailed specifications for EG4 WallMount [Indoor] Lithium Battery | 14.3kWh | 48V 280Ah | Heated UL1973, UL9540A | 10-Year Warranty have not been published yet. EG4 lists this battery in the Batteries, and we add fields as the manufacturer releases them — in the meantime, ask your distributor for the datasheet before ordering.

For a battery, the figures that matter most are cycle life at a stated depth of discharge, commonly 3,000–6,000 cycles for LiFePO4, round-trip efficiency, around 90–95% for lithium and 75–85% for lead-acid, communication protocol (CAN or RS485) for talking to the inverter and nominal capacity in ampere-hours (Ah) or kilowatt-hours (kWh). Storage is what turns a solar array from a daytime bill-reducer into a system that covers evening loads and rides through outages. It is normally the single most expensive component, so sizing it correctly matters more than with any other part.

What to check before ordering

The checks below apply to any battery. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.

Size from your evening consumption. Add up what actually runs after sunset for the hours you want covered, then divide by the usable capacity per unit — that number, not the array size, sets how many batteries you need.
Check the continuous discharge rating against your inverter. A battery that stores plenty of energy but can only deliver 50 A cannot support a large inverter at full output.
Match voltage to the inverter, and confirm the battery appears on the inverter maker's supported list. Closed-loop communication lets the inverter respect the battery's real charge limits instead of guessing.
Read the warranty in full: lithium warranties are stated as a term plus either a cycle count or a total energy throughput, and whichever limit arrives first ends the cover.

Where buyers lose money

Mixing old and new batteries, or different chemistries, in one bank. The weakest unit drags the whole bank down and can be damaged by the others.
Sizing the bank for total daily consumption rather than after-dark consumption, which typically doubles the cost for no benefit.
Installing lithium packs in an unventilated, hot enclosure. Sustained high temperature is the fastest way to lose cycle life.

Price and availability

EG4 WallMount [Indoor] Lithium Battery | 14.3kWh | 48V 280Ah | Heated UL1973, UL9540A | 10-Year Warranty is listed at $ 3,109 (USD). Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.

SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in your country: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports EG4 locally before ordering.

EG4 WallMount [Indoor] Lithium Battery | 14.3kWh | 48V 280Ah | Heated UL1973, UL9540A | 10-Year Warranty — frequently asked questions

How much does EG4 WallMount [Indoor] Lithium Battery | 14.3kWh | 48V 280Ah | Heated UL1973, UL9540A | 10-Year Warranty cost?

EG4 WallMount [Indoor] Lithium Battery | 14.3kWh | 48V 280Ah | Heated UL1973, UL9540A | 10-Year Warranty is listed at $ 3,109 (USD). The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.

Who makes EG4 WallMount [Indoor] Lithium Battery | 14.3kWh | 48V 280Ah | Heated UL1973, UL9540A | 10-Year Warranty?

EG4 WallMount [Indoor] Lithium Battery | 14.3kWh | 48V 280Ah | Heated UL1973, UL9540A | 10-Year Warranty is a EG4 product, listed under batteries with model reference 1511092. The EG4 brand page lists the rest of its range so you can compare across the catalogue.

Is EG4 WallMount [Indoor] Lithium Battery | 14.3kWh | 48V 280Ah | Heated UL1973, UL9540A | 10-Year Warranty right for my system?

That depends on what it has to connect to. For a battery, check communication protocol (CAN or RS485) for talking to the inverter, nominal capacity in ampere-hours (Ah) or kilowatt-hours (kWh) and usable capacity after depth of discharge — LiFePO4 typically allows 80–100%, lead-acid closer to 50% against the rest of your equipment before price enters the decision. Read the warranty in full: lithium warranties are stated as a term plus either a cycle count or a total energy throughput, and whichever limit arrives first ends the cover.

Where can I buy EG4 WallMount [Indoor] Lithium Battery | 14.3kWh | 48V 280Ah | Heated UL1973, UL9540A | 10-Year Warranty?

SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer — buying in-channel is what keeps the manufacturer's warranty valid.

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