EG4 Wall Mount Indoor 280Ah Lithium Battery User Guide

EG4® WALL MOUNT INDOOR
280Ah LITHIUM BATTERY
QUICK- START GUIDE

Wall Mount Indoor 280Ah Lithium Battery

This guide has been created to give the end-user a quick and easy process to install and commission the WallMount Indoor 280Ah lithium battery in a variety of configurations. ©2024 EG4 ELECTRONICS, LLC. ALL RIGHTS RESERVED.
VERSION 1.1 | INFORMATION SUBJECT TO CHANGE WITHOUT NOTICE.
MODEL#: WM-48|280-LL-00 / WM-48-280-1-IN-LL-00
SCAN FOR UPDATED DOCUMENTS

https://eg4electronics.com/backend/wp-content/uploads/2024/03/EG4%C2%AE- Indoor-280Ah-Battery-Quick-Start-Guide.pdf

TECHNICAL SPECIFICATIONS

MODULE OPERATING PARAMETERS

ENVIRONMENTAL PARAMETERS

CHARGING/ DISCHARGING PARAMETERS

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
OVER-CHARGING CURRENT 1| >205A| 10 sec| 60 sec
OVER-CHARGING 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| 1 sec| >14°F or <149°F
-10°C or <65°C
PCB TEMP PROTECTION| >230°F (>110°C)| 1 sec| @ <176°F (<80°C)

GENERAL SPECIFICATIONS

(-40°C to ≈100°C)
VOLTAGE ACCURACY| 0.50%| Cycle Measurement| For Cells & Module
CURRENT ACCURACY| 3%| Cycle Measurement| Measuring Range -200A – 200A
SOC| 5%| –| Integral Calculation
POWER CONSUMPTION| Sleep & Off Mode| <300uA| Storage/Transport/Standby
POWER CONSUMPTION| Operating Mode| <25mA| Charging/Discharging
COMMUNICATION PORTS| RS485/CAN| Can be customized

BATTERY HEATER SPECIFICATIONS

PHYSICAL SPECIFICATIONS

SAFETY CERTIFICATIONS

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

ABBREVIATIONS

AWG – American Wire Gauge
A – Amp(s)
Ah – Amp hour(s)
AC – Alternating Current
AFCI-Arc-Fault Circuit Interrupter
AHJ – Authority Having Jurisdiction
ANSI – American National Standards Institute
BAT-Battery
BMS – Battery Management System
COM-Communication
CT-Current Transformer
DC – Direct Current
DIP – Dual In-line Package
DOD – Depth of Discharge
EG – Equipment Ground
EGS – Equipment Grounding System
EMC-Electromagnetic Compatibility
EPS – Emergency Power System
ESS – Energy Storage System
E-Stop-Emergency Stop
E-Stop NO – Emergency Stop Normally Open
FCC-Federal Communication Commission
GE – Grounding Electrode
GEC – Grounding Electrode Conductor
GEN-Generator
GES – Grounding Electrode System
GFCI-Ground Fault Circuit Interrupter
GFDI-Ground Fault Detector/Interrupter
Imp – Maximum Power Point Current
IEEE-Institute of Electrical and Electronic Engineers
IP-Ingress Protection| Isc – Short-Circuit Current
In-lbs. – Inch Pounds
kW – Kilowatt
kWh – Kilowatt-hour
LCD-Liquid Crystal Display
LFP – Lithium Iron Phosphate or LiFePO4
L1-Line 1; Typically, a black wire
L2-Line 2; Typically, a red wire
mm – Millimeter(s)
MPPT-Maximum Power Point Tracking
mV – Millivolt(s)
N-Neutral; Typically, a white wire
NEC – National Electrical Code
NEMA- National Electrical Manufacturers Association
NFPA – National Fire Prevention Association
Nm – Newton Meters
NOCT-Normal Operating Cell Temperature
PC – Personal Computer
PCB – Printed Circuit Board
PE – Protective Earth (G or Ground);
Pnum-Parallel Number
PPE – Personal Protective Equipment
PV – Photovoltaic
RSD – Rapid Shut Down
SCC- Standards Council of Canada
SOC – State of Charge
STC – Standard Testing Conditions
UL-Underwriters Laboratories
UPS-Uninterrupted Power Supply
V – Vo l t (s)
VOC – Open-Circuit Voltage
VMP – Voltage Maximum Power
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SAFETY

3.1 SAFETY INSTRUCTION
Before any work begins, carefully read all safety instructions, and always observe them when working on or with the battery. The installation must follow all applicable national or local standards and regulations. Consult with the local AHJ to obtain the proper permits and permissions before installation.
Incorrect installation may cause:

• Injury or death to the installer, operator or third party
• Damage to the battery or other attached equipment

3.2 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.
DANGER!
High Voltages and Large Current!

1. Do not disassemble the battery. Contact the distributor for any issues that need repair for more information and proper handling instructions. Incorrect servicing or reassembly may result in a risk of electric shock or fire and void the warranty.

2. 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.

3. Use caution when working with metal tools on or around batteries and systems.
   Risk of electrical arcs and/or short circuiting of equipment can lead to severe injury or death and equipment damage.

4. 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.

5. 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.

6. Make sure the battery and rack are properly grounded.

7. An installer should make sure to be well protected by reasonable and professional insulative equipment [e.g., personal protective equipment (PPE)].

8. 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.

9. 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.

1. Read all instructions before commencing installation. For electrical work, follow all local and national wiring standards, regulations, and these installation instructions. All wiring should be in accordance with the National Electrical Code (NEC), ANSI/NFPA 70.

2. 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.

3. All warning labels and nameplates on this battery should be clearly visible and must not be removed or covered.

4. The installer should consider the safety of future users when choosing the battery’s correct position and location as specified in this manual.

5. 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.

PACKING LIST

The items listed below will arrive with the product shipment:
EG4 WallMount Indoor 280Ah

4.1 LOCATION SELECTION AND INSTALLATION
Requirements for installation location:

• The WallMount Indoor battery is heavy. Use a lift or other equipment to lift and carry the unit.
• The battery can be installed against a flat wall, but the weight of the battery should not be fully supported by the wall. To help with this requirement, the battery comes with pre-installed feet that should be used to carry the weight of the battery.
• If the battery is installed against a wall, the wall should be made of non-combustible material. If this is not possible, then the unit MUST have a minimum of 2 in. (50.8mm) clearance from the wall. Also note that whatever mounting solution that is used to grant the 2 in. clearance from the wall MUST be made of a non-combustible material.
• If installing on flat ground as a standalone unit, ensure there is proper drainage on the ground surrounding the battery to maintain integrity of the module over time and prevent damage from flooding. If installing against a wall, ensure at least a 12 in. (305mm) gap on each side of the unit for adequate airflow and operations.
• Ensure the battery is mounted upright.

NOTE: The battery will be shipped with temporary lifting handles for removing the battery from its packaging. The battery is very heavy. Use the team-lift technique during installation and remove the temporary lifting handles before making any connections within the system.
WARNING: Please be sure not to make any electrical connections until the system is properly placed where it will operate.

PARALLEL EXAMPLES

The diagrams below show different parallel orientations. These diagrams are for reference only!
5.1 BATTERY CABLE CONNECTIONS
The following battery cable connection diagrams are examples using the internal busbars to parallel the batteries together and attach the inverter(s) to the batteries. When relying on the internal busbars, up to 3 batteries are supported in parallel when connected to a single inverter, 4 batteries in parallel when connected to 2 inverters, or up to 5 batteries in parallel when connected to 3 inverters.
Systems with more batteries than these configurations require the use of an external fused positive busbar and an unfused negative busbar rated at a minimum of 200A per battery. Each fuse should be a maximum of 250A. Alternatively, larger systems could rely on the 18kPV’s ability to draw from different battery packs while still paralleling inverters rather than utilizing external busbars.
The maximum recommended number of paralleled 18kPV inverters is 6. If this approach is used, we recommend a ratio of 2 batteries per pack controlled by each 18kPV inverter. Separating packs is only recommended if each pack’s average SOC is monitored over time and does not diverge by more than 10%. Common busbars are superior to separating battery packs but it may be difficult to source fused positive busbars rated to greater than 1800 Amps. This translates into separating packs larger than 9 batteries. Refer to NEC code and the local AHJ for exact requirements.

NOTE: In the following diagrams, units are spaced 12 in. apart. Local regulations may require a larger minimum battery spacing. Check with the local AHJ for these requirements.
If longer parallel cables than are available in the optional paralleling kit are necessary, please check with the distributor for availability.

Note: To comply with the UL9540 listing for this integrated battery, conduit box, and inverter system, the batteries must be wired as shown using the supplied inverter to battery cables. An additional paralleling kit is required for each additional paralleled battery (sold separately).
Caution: To minimize voltage drop in the wire, the battery cables should maintain optimum length. The 53.1 in. cables from the “parallel kit” are sufficient to daisy chain the batteries.

5.2 ADDITIONAL CONFIGURATIONS

Color Code

| Parallet/Comms
---|---
| Positive
| Negetive

Note: Some configurations require additional wiring/connectors to achieve the example layouts. Inverter to nverter paralleling cables are not shown in the following diagrams.
Other configurations can be achieved by using external busbars. Please seek the guidance of an electrician or qualified personnel for optional system layout.
Pro Tip: One EG4-18kPV and a minimum of 2 WallMount units is the recommended configuration to maximize the system’s functionality.
Reminder!
The separation between batteries should be ≥ 12 in.

ORIENTATION EXAMPLES

INSTALLING THE BATTERY

Follow the steps listed below to ensure the WallMount Indoor battery is mounted correctly.
WARNING: Do not put EG4 WallMount batteries in series!
The BMS and internal components are not designed to handle this setup, which could cause the modules to fail, leading to damage.
NOTE: The battery will be shipped with temporary lifting handles for removing the battery from its packaging. EG4 recommends these handles be removed before mounting to the wall making any connections.

7.1 STANDALONE BATTERY INSTALL

1. Remove the 4 set screws holding the mounting bracket to the back of the battery pack and set them to the side.
2. Remove the mounting bracket from the battery.
3. Position the top of the mounting bracket on the wall at the desired mounting height, with a minimum clearance from the ground of 29.2 in. (742mm).
4. Using a level, ensure the bracket is level and drill 6 holes to accommodate the mounting hardware used.
5. Secure the mounting bracket to the wall using the included expansion bolts or appropriate hardware required for the mounting surface.
6. Attach the battery pack to the mounting bracket. Using the team-lift technique, lift the battery and hook the back flange onto the front flange of the mounting bracket.
7. Secure the battery to the mounting bracket using the 4 included side screws.
8. Finally, properly ground the battery, attaching a grounding conductor to the M6 grounding screw on top of the battery to the Equipment Grounding System. DO NOT GROUND THE NEGATIVE BATTERY CABLE!

7.2 BATTERY INSTALL WITH CONDUIT BOX

1. Remove the 4 set screws holding the mounting bracket to the back of the battery pack and set them to the side.
2. Remove the mounting bracket from the battery.
3. Position the top of the mounting bracket on the wall at the desired mounting height, with a minimum clearance from the ground of 29.2 in. (742mm).
4. Using a level, ensure the bracket is level and drill 6 holes to accommodate the mounting hardware used.
5. Secure the mounting bracket to the wall using the included expansion bolts (concrete or brick walls) or appropriate hardware for the mounting surface.
6. Attach the battery to the mounting bracket. Using the team-lift technique, lift the battery and hook its back flange onto the front flange of the mounting bracket.
7. Secure the battery to the mounting bracket using the 4 included side screws.
8. Remove the four screws on the top of the battery as shown in Section 7.3 and retain them for use in Step 9.
9. Identify the four screws locations shown in Section 7.3 that line up with the thumb screws located in Step 8. Place the conduit box on top of the battery and use the thumb screws to attach the box to the top of the battery.
10. Finally, properly ground the battery, attaching a grounding conductor to the M6 grounding screw on top of the battery to the equipment grounding system. DO NOT GROUND THE NEGATIVE BATTERY CABLE!

NOTE: If mounting the bracket at 29.2 in. (742mm) from the ground, the battery will rest on the ground.

7.3 BATTERY INSTALL WITH CONDUIT BOX & EG4 INVERTER
The WallMount INSTALL Indoor battery is designed to integrate with the EG4 18kPV hybrid inverter, as well as the 6000XP off-grid inverter.
Follow the steps listed below to ensure proper connections are made in the system:

1. Remove the 4 set screws holding the mounting bracket to the back of the battery pack and set them to the side.

2. Remove the mounting bracket from the battery.

3. Position the top of the mounting bracket on the wall at the desired mounting height, with a minimum clearance from the ground of 29.2 in. (742mm).

4. Using a level, ensure the bracket is level and drill 6 holes to accommodate the mounting hardware used.

5. If using a 18kPV, align the provided X-bracket with the holes on the mounting bracket and secure both to the wall, using the included expansion bolts (concrete/brick walls) or appropriate hardware required for the mounting surface. The X-bracket will rest behind the mounting plate, against the wall.

6. Remove the four screws on the top of the battery as shown below and retain them for use in Step 7. See the below image for reference.

7. Identify the four screws locations shown below that line up with the thumb screws located in
   Step 6. Place the conduit box on top of the battery and use the thumb screws to attach the box to the top of the battery. See the below image for reference.

8. Attach the inverter to the inverter mounting bracket and ensure the inverter’s bottom knockouts align with the conduit box. If using a 6000XP, it will not have a mounting bracket of its own. It has two mounting ears which are already attached (one on top and one on bottom), each with 3 screw holes, that are used to mount the unit to the wall. The bottom mounting ear will fit behind the conduit box once it is in place on the wall, and the 3 screw holes can be accessed from inside the conduit box.

9. Finally, properly ground the battery, attaching a grounding conductor to the M6 grounding screw on top of the battery to the equipment grounding system. DO NOT GROUND THE NEGATIVE BATTERY CABLE!

The image below represents a completed install showing a rear view.

7.4 PRE-WIRE STEPS AND WIRING
The battery will come with 2 sets of 2/0 AWG power cables. Please refer to the inverter documentation that the battery will be connected to for torque specs and wire sizing needs for specific use cases.
7.5 MULTIPLE BATTERY PARALLEL INSTALL
WARNING: Make sure to install the communication cables into their respective ports!
Improper installation may lead to component damage!
EG4 recommends double checking all points of connection before introducing power to the system to mitigate any potential issues.
IMPORTANT:
The battery can charge/discharge up to 200A before the BMS shuts off the pack. Ensure the inverter is configured to handle this high of a current and size all wires accordingly! Refer to an NEC approved ampacity chart or consult with the installer or a solar electrician for more information.
When paralleling multiple WallMount Indoor batteries, a paralleling kit must be purchased through the distributor.
Follow the steps outlined below to ensure proper installation of multiple batteries in parallel.

1. Ensure all circuit breakers are open (off). Using a multimeter, check for voltage at all available disconnects and lines. Once no voltage is confirmed, proceed to the next step.
2. Set the DIP switch address on the master battery to address 1, and all other batteries in parallel to differing addresses going in ascending order. (See image)
3. Reset the battery BMS via the power button to register the address change.
4. Set up communication between the batteries via the “Battery-Comm” ports by using a CAT 5, 5e, or 6 cable.
5. The battery set to address 1 will connect directly to the inverter BMS communication port via CAT 5, 5e or CAT 6 cable.
6. Install battery paralleling cables between the batteries included in the optional paralleling kit ensuring the connectors are seated properly.

7.6 MULTIMETER TESTING AND WIRING
DANGER! No connections should be made until proper polarity of cables has been confirmed!
WARNING: Make sure to install the communication cables into their respective ports! Improper installation may lead to component damage!
EG4 recommends double checking all points of connection before introducing power to the system to mitigate any potential issues.
Follow the steps outlined below to both test the inputs and wire the battery pack to the inverter.

1. Ensure all circuit breakers are open (off). Using a multimeter, check for voltage at all available disconnects and lines. Once no voltage is confirmed, proceed to the next step.

2. Connect the included sets of 2/0 AWG (70mm2 ) connectors to the battery’s positive and negative terminals. The connectors will “click” when seated properly.
   NOTE: If installing the battery pack with the optional conduit box, secure the conduit fittings to the enclosure using the counter nuts after step 2.

3. If applicable, route the battery power cables through the conduit box to the inverter without making any connections!

4. Ensure proper polarity of cables. Once confirmed, proceed to the next step.

5. Install the positive battery cable(s) to the inverter’s positive battery terminals following proper torque values.

6. Install the negative battery cable(s) to the inverter’s negative battery terminals following proper torque values.

FRONT PANEL INDICATOR LIGHTS

8.1 RUN/ALM LIGHTS
The WallMount Indoor 280Ah lithium battery features 2 LED status indicator lights on the front panel of the unit. Their functions are listed below:

BMS COMMUNICATIONS

WARNING: Make sure to install the communication cables into their respective ports!
Improper installation may lead to component damage!
EG4 recommends double checking all points of connection before introducing power to the system to mitigate any potential issues.

EG4 batteries interface with compatible inverters by designating a “Master” battery (DIP switch ID No. 1).
The battery will connect directly to the inverter via an RS485 battery communications cable or a standard CAT 5, 5e, or 6 cable for closed loop communications with supported EG4 and non-EG4 inverters using CAN bus protocol.
The PC software “BMS TOOLS” provides real-time battery analysis and diagnostics. The battery cannot communicate with the software and a closed loop inverter simultaneously.
Scan the QR code on the left for a video walking through the BMS Tools setup process.
Scan the QR code on the right for a white sheet walking through the BMS Tools setup process.

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https://www.youtube.com/watch?v=eHLefvjPN8c| https://eg4electronics.com/backend/wp-content/uploads/2024/01/BMS-TOOLS- SETUP.pdf

9.1 CLOSED LOOP COMMUNICATIONS

1. Power off all battery DC breakers and BMS power buttons.
2. The inverter protocol can only be changed with the master battery temporarily set to address 64 (all switches ON). After the DIP switch is changed, restart the BMS using the BMS power button for the settings to take effect. (See image)
3. On the master battery, press and hold the “Return” key for 5 seconds and release to enter the “Protocol Setting” menu.
4. Select the corresponding CAN protocol (P01-EG4/LUX) for the system if using EG4 inverters, (See table below).
5. Change the master DIP switch address back to address 1 for inverter communications & power cycle the BMS. (See image)

The tables below show compatibility lists depending on the type of communication protocol used for closed-loop communications between battery and inverter.

CLOSED LOOP COMMS. WITH EG4 INVERTERS

MODEL| PROTOCOL SELECTION
18kPV/6000XP| CAN – P01
CAN PROTOCOL LIST

PROTOCOL #| MANUFACTURER
P01-EG4/LUX| EG4/LUX
P02-GRW| Growatt
P03-SLK| Sol-Ark
P04-DY| Deye
P05-MGR| Megarevo
P06-VCT| Victron
P07-LUX| Luxpower
P08-SMA| SMA
RS485 PROTOCOL LIST

PROTOCOL #| MANUFACTURER
P01-EG4| EG4
P02-GRW| Growatt
P03-SCH| Schneider

NOTE: Both the CAN Protocol and RS485 Protocol menus are password protected. The password for each is “123456”.

NOTE: Closed loop communications using RS485 protocols require a specific pinout on the comms cable from battery to inverter. Refer to the table below for EG4 specifics.

To battery – RJ 45 Pin 4-H & Pin 5-L
RS485| To inverter – RJ45 Pins 7-A & 8-B
To battery – RJ45 Pins 1-B & 2-A
6000XP| CAN| To inverter – RJ 45 Pin 4-H & Pin 5-L
To battery – RJ 45 Pin 4-H & Pin 5-L
RS485| To inverter – RJ45 Pins 1-B & 2-A
To battery – RJ45 Pins 1-B & 2-A
3000EHV (Legacy Product)| RS485| To inverter – USB Type B
To battery – RJ45 Pins 1-B & 2-A
8KEXP (Legacy Product)| CAN| To inverter – RJ 45 Pin 4-H & Pin 5-L
To battery – RJ 45 Pin 4-H & Pin 5-L
RS485| To inverter – RJ45 Pins 7-B & 8-A
To battery – RJ45 Pins 1-B & 2-A
6000EX (Legacy Product)| RS485| To inverter – RJ45 Pins 3 & 5
To battery – RJ45 Pins 1-B & 2-A
6500EX (Legacy Product)| RS485| To inverter – RJ45 Pins 3 & 5
To battery – RJ45 Pins 1-B & 2-A

FIRMWARE UPDATES

Always ensure all system components are fully up to date before commissioning the system.
Navigate to the EG4 WallMount Indoor battery product page by using the QR code below to find the latest downloads for the battery. A PDF walkthrough will be included in the downloaded .zip file. If encountering difficulties during the updating process, contact the distributor for more information.

https://eg4electronics.com/backend/wp- content/uploads/2024/01/EG4%C2%AE-Indoor-WallMount-Battery-Quick-Start- Guide.pdfCONTACT US
support@eg4electronics.com
903-609-1988
www.eg4electronics.com

References

• EG4 Electronics

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