EG4 UL1973 Wall Mount Indoor 280Ah Lithium Battery User Guide

: June 1, 2024
: Eg4

Table of Contents

EG4 UL1973 Wall Mount Indoor 280Ah Lithium Battery
TECHNICAL SPECIFICATIONS
SAFETY
MAINTENANCE & DISPOSAL
TROUBLESHOOTING
WARRANTY
STORAGE
CONTACT
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

EG4 UL1973 Wall Mount Indoor 280Ah Lithium Battery

TECHNICAL SPECIFICATIONS

MODULE OPERATING PARAMETERS

PARAMETER| BMS| RECOMMENDED SETTING
Total Energy Capacity| 14.3kWh @25C, 100% SOC| –
Voltage| 51.2V| | –
Capacity| 280Ah| | –
Charging Voltage (Bulk/Absorb)| 56.0V (±0.8V)| | 56.2V (±0.2V)
Float| –| | 54V (±0.2V)
Low DC Cutoff| 44.8V| 47-45.6V

(start higher, lower as needed)

<-5°C or >70°C

| 1 sec| >32°F or <140°F

0°C or <60°C

DISCHARGE| SPEC| DELAY| RECOVERY
Cell Voltage Protection| 2.3V| 1 sec| 3.1V
Module Voltage Protection| 44.8V| 1 sec| 48V
Discharge Over-Current 1| >205A| 10 sec| 60 sec
Discharge Over-Current 2| >300A| 3 sec| 60 sec
Short Circuit| >600A| 0.1 ms| –
Temperature Protection| <-4°F or >167°F

<-20°C or >75°C

Temperature Accuracy

|

3%

|

Cycle Measurement

| Measure Range:

-40°F – ≈212°F

(-40°C – ≈100°C)

-200 – 200A

SOC| 5%| | Integral Calculation
Power Consumption (Standby)| <300uA| | Standby/Transport/Storage
Power Consumption

(Operating)

| <25mA| | Charging/Discharging
Communication Ports| RS485/CAN| | Customizable
BATTERY HEATER SPECIFICATIONS
PARAMETER| SPEC| | CONDITION
Voltage| 56V| | –
Power Consumption| 224W| | –
Internal Battery Temperature| ≤32°F (0°C) or ≥41°F (5°C)| Heat On/Heat Off
PHYSICAL SPECIFICATIONS|
---|---
Dimensions (H × W × D)| 36.4 × 18.1 × 9.6 in. (925 × 460 × 245 mm)
Weight| 282 lbs. (128 kg)
Design Life| >10 years
Cycle Life| >8000 cycles @ 0.5C 80% DOD
Lifetime Production| 82.6MWh*

(51.2V×280Ah/1000×80%×8000 cycles/1000)90%=MWh

SAFETY

SAFETY INSTRUCTIONS

DANGER! AVERTISSEMENT

International safety regulations have been strictly observed in the design and testing of the inverter. Before beginning any work, carefully read all safety instructions, and always observe them when working on or with the inverter. The installation must follow all applicable national or local standards and regulations.

Incorrect installation may cause

Injury or death to the installer, operator or third party.
Damage to the inverter or other attached equipment.

IMPORTANT SAFETY NOTIFICATIONS

There are various safety concerns that must be carefully observed before, during, and after the installation, as well as during future operation and maintenance. The following are important safety notifications for the installer and any end users of this product under normal operating conditions.

Do not disassemble the battery. Contact the distributor for any issues that need repair for more information and proper handling instructions. Incorrect servicing or re-assembly may result in a risk of electric shock or fire and void the warranty.
Never short-circuit DC inputs. Short-circuiting the battery may result in a risk of electric shock or fire and can lead to severe injury or death and/or permanent damage to the unit and/or any connected equipment.
Use caution when working with metal tools on or around batteries and systems. The risk of electrical arcs and/or short-circuiting of equipment can lead to severe injury or death and equipment damage.
Beware of high battery current. Please ensure that the battery module breakers and/or on/off switches are in the “open” or “off” position before installing or working on the battery. Use a voltmeter to confirm there is no voltage present to avoid electric shock.
Do not make any connections or disconnections to the system while the batteries are operating. Damage to system components or risk of electrical shock may occur if working with energized batteries.
Make sure the battery and rack are properly grounded.
An installer should make sure to be well protected by reasonable and professional insulative equipment [e.g., personal protective equipment (PPE)].
Before installing, operating, or maintaining the system, it is important to inspect all existing wiring to ensure it meets the appropriate specifications and conditions for use.
Ensure that the battery and system component connections are secure and proper to prevent damage or injuries caused by improper installation.

WARNING : To reduce the risk of injury, read all instructions!

All work on this product (system design, installation, operation, setting, configuration, and maintenance) must be carried out by qualified personnel. To reduce the risk of electric shock, do not perform any servicing other than those specified in the operating instructions unless qualified to do so.

Read all instructions before commencing installation. For electrical work, follow all local and national wiring standards, regulations, and installation instructions. All wiring should be in accordance with the National Electrical Code (NEC), ANSI/NFPA 70.
The battery and system can connect with the utility grid only if the utility provider permits. Consult with the local AHJ before installing this product for any additional regulations and requirements for your area.
All warning labels and nameplates on this battery should be clearly visible and must not be removed or covered.
The installer should consider the safety of future users when choosing the battery’s correct position and location as specified in this manual.
Please keep children away from touching or misusing the battery and relevant systems

DISCLAIMER
EG4 reserves the right to make changes to the material herein at any time without notice. Please refer to www.eg4electronics.com for the most updated version of our manuals/spec sheets.

MAINTENANCE & DISPOSAL

TROUBLESHOOTING, MAINTENANCE & DISPOSAL

INTRODUCTION TO THE BMS

The BMS (Battery Management System) is intended to safeguard the battery and battery cells against a variety of situations that could damage or destroy system components. This protection also aids in keeping the battery and battery cells operational for a greater number of life cycles. Each EG4 battery is specifically configured to ensure peak performance and operation with any system.

BMS PROTECTION

PCB TEMPERATURE PROTECTION

The BMS will ensure that the PCB (Printed Circuit Board) does not overheat. This is the component that houses most of the “brains” of the battery. This feature will turn off the battery if it begins to overheat.

CELL BALANCE PROTECTION

Cell balancing ensures that each cell is within a specific voltage range of each other. Cell balance is crucial for ensuring that the battery is operating properly for its lifespan. This is always done automatically.

ENVIRONMENTAL TEMPERATURE PROTECTION

It may be dangerous to attempt using the battery in extreme heat or cold. Continued operation in these conditions may result in permanent damage to the battery module and its components. To prevent this, the BMS is designed to measure the temperature while charging/discharging and will shut down the battery to prevent damage.

VOLTAGE PROTECTION

The BMS is designed to continuously monitor the voltage of each individual cell and ensure that they are not over/undercharged.

CURRENT PROTECTION

The BMS is designed to constantly monitor the charge/discharge amperage and has built-in safeguards against exceeding specific parameters. These include built-in timers that shut off quickly in the event of short circuits, extremely high amperage and delayed shutdown for amperage that is only slightly above the maximum capacity.

TROUBLESHOOTING

ALARM DESCRIPTION AND TROUBLESHOOTING

When the ALM light on the battery control panel is on, it means that the battery has given an alarm or has been protected from potential damage. Please check the cause of the failure through the app or BMS Tools. The PC software “BMS Tools” provides real-time battery analysis and diagnostics. The battery cannot communicate with BMS Tools and a closed loop inverter at the same time. Take appropriate measures or go directly to the battery site to troubleshoot.
BMS Tools alarms are shown in the table below:
WARNING AND PROTECT STATUS DEFINITIONS

STATUS	NAME	DEFINITION	ACTION

Warning/ Protect

NOTE : The “Historical Record” tab can indicate what occurred with the module before entering a warning or protection state. It is recommended to export this data into a text (.txt) file to provide to the distributor for any additional troubleshooting assistance.

OTHER COMMON FAULTS AND SOLUTIONS

FAULT	ANALYSIS	ACTION
Inverter communication failure	Check the communication port connection, and
battery ID setting.	Input the proper “host” battery DIP switch address, and

power cycle the battery.
No DC output| Open breaker or battery voltage is too low.| Check the battery breaker or charge the battery.
Power supply unstable| Battery capacity is not at full power.| Check for proper battery cable connection.
The battery cannot be charged fully| DC output voltage is below the minimum charge voltage.| Check the charging settings on the inverter to ensure they match battery requirements.
ALM LED always on| Short circuit| Disconnect the power cable and check all cables.
The battery output voltage is unstable.| The battery management system does not operate normally.| Press the reset button to reset the battery, then reboot the system.
ALM LED flashes 20 times with SOC1 LED on.| ****

Unbalanced voltage within a cell

| Deep discharge the battery bank (<20% SOC), then charge battery bank fully.
ALM LED flashes 20 times with SOC2 LED on.| Unbalanced temperature| Contact the distributor.
ALM LED flashes 20 times with SOC 3/4 LED on.| BMS damaged| Contact the distributor.
Different SOC values of batteries in parallel operation.| ****

No issue

| Deep discharge the battery bank (<20% SOC), then charge the battery bank fully.
Low voltage protection with no LED on| BMS is in low voltage protection and is in sleep mode| ****

Contact the distributor.

Deeply discharged with

“RUN” LED on

| The battery voltage is too low to start BMS.| ****

Contact the distributor.

NOTE : If any of the warnings or faults from both tables persist, please contact the distributor for additional troubleshooting steps.

BATTERY END-OF-LIFE

The EG4 WallMount Indoor 280Ah lithium battery is designed to last for more than 15 years when used correctly. EG4 has worked tirelessly to ensure that our batteries will maintain a charge after thousands of cycles. However, when it does come time to retire the battery, there are a few things to consider. Lithium batteries are considered a hazardous material and should not be disposed of by simply placing them in the trash. There are several websites and organizations that will accept this battery to recycle at little to no cost to the user. At EG4, we understand that we are working with customers across the United States and the world. Our recommendation is to go online and search the term “Lithium Battery Disposal Near Me.” There will likely be an assortment of organizations that can safely dispose of LFP batteries. EG4 recommends calling ahead of time to ensure that the location is still open and accepting material. If users are unable to locate a disposal location safely, EG4 is here to help. Before dumping the battery or disposing of it incorrectly, please contact our customer service team for assistance.

WARRANTY

EG4 10-YEAR LIMITED WARRANTY
The warranty must be registered within the first year of purchase to remain valid. If users choose not to register the product, the warranty may be invalidated. This limited warranty is to the original purchaser of the product and is not transferable to any other person or entity. All BMS and cell exchanges are covered throughout the warranty period. If a full replacement warranty is needed the warranty is prorated 1/9th per year after the first year at the current retail pricing. Please navigate to https://eg4electronics.com/warranty-registration/ to register the warranty.
WARRANTY EXCLUSIONS
Under this limited warranty, EG4 Electronics has no obligation to the product if it is subject to the following conditions, including but not limited to

Damages incurred during installation or removal.
Damages caused during mishandling of product.
Inappropriate environmental exposure.
Damages caused by improper maintenance.
Unauthorized tampering, altering, and/or disassembly of product.
Using the product for purposes other than those intended by the manufacturer.
Lightning, Fire, Flood, or Acts of God.
Any product whose serial number has been altered, defaced, or removed.

The equipment sold by EG4 Electronics is designed to be installed only by licensed, trained, and insured solar electrical installation professionals. We strongly advise customers to seek the assistance of such a professional to implement these products, and we make no warranty of the purchaser’s safety, success of equipment implementation, or compliance with local codes and regulations. EG4 Electronics disclaims all additional warranties, expressed or implied, including but not limited to, any implied warranty with respect to the accuracy or completeness of the information they disseminate and /or fitness of the materials sold for a particular purpose. No warranty may be created or extended by sales or promotional materials on these items. Each party hereby irrevocably waives its rights to trial by jury in any action or proceeding arising out of this agreement or the transactions relating to its subject matter. All installation advice provided by EG4 before, during, or after the purchase of solar equipment is purely for the purpose of general concept education and must not replace the expertise of a licensed and trained solar specialist. The customer agrees to full indemnification for EG4 henceforth from any legal recourse relating to and arising out of losses, direct or consequential, from the installation of the products purchased by the customer more than the value of the equipment purchase price.

STORAGE

Please follow these instructions for the safe storage of the unit to maintain the longevity of the battery, if choosing not to install the product immediately after purchasing or unpacking the box. There are a few steps that can be taken to ensure that batteries are stored safely and in a state that will ensure they are not damaged during storage. The steps are detailed below.

BATTERY STATE

The state of the battery when placed into storage will affect how long it can be stored as well as the battery’s condition when it is brought out of storage. EG4 recommends that each battery is brought to a 100% SOC (state of charge) before placing them in storage. Lithium batteries will lose a certain percentage of their total charge while in storage, depending on how long they are stored and the conditions they are stored in. EG4 recommends recharging the batteries after 8–9 months in prolonged storage.
ENVIRONMENTAL FACTORS
The environment the battery is stored in can greatly affect the health of the battery. For best results, the temperature should range between 33°F and 90°F (0.6°C and 32°C). Mount the battery in a location where it is not exposed to direct rain, standing water and ensure the battery is mounted on non- combustible material. Keep the battery away from direct sunlight. Store the batteries away from combustible materials.

CH ANGELOG

Version 1.0.1