GREEN BANK WG48100 User manual

POWER BANKS STORAGE SYSTEM
User Manual
Version: 1.0
WG48100 (51.2V 100AH-5.12Kwh)
WG48250 (51.2V 200AH-10.24Kwh)
WG48320 (48V 320AH-13.44Kwh)
For On / Off Hybrid Solar Storage System

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Contents
1. Safety Precautions..........................................................................................................................................- 2 -
1.1. Before Connecting ........................................................................................................................................................ - 2 -
1.2. During operation ........................................................................................................................................................... - 2 -
2. Battery Specifications ....................................................................................................................................- 3 -
3. Introduction to the battery..............................................................................................................................- 4 -
3.1. Key Features................................................................................................................................................................. - 4 -
3.2. Interface Introduction .................................................................................................................................................... - 4 -
3.3. SOC Indicator & Status Indicator Guides ..................................................................................................................... - 5 -
3.4. Connectors.................................................................................................................................................................... - 7 -
3.5. Wake Up button ............................................................................................................................................................ - 7 -
3.6. Display function instruction ........................................................................................................................................... - 7 -
3.6.1. Reference of real figure ......................................................................................................................................... - 7 -
3.6.2. Screen Display....................................................................................................................................................... - 7 -
3.6.3. Functional Specifications ....................................................................................................................................... - 8 -
4. Safe handling guide ......................................................................................................................................- 11 -
4.1. System Diagram ......................................................................................................................................................... - 11 -
4.2. Tools ........................................................................................................................................................................... - 11 -
4.3. Safety Gear................................................................................................................................................................. - 11 -
5. Installation .....................................................................................................................................................- 12 -
5.1. Inventory of items........................................................................................................................................................ - 12 -
5.2. Installation Location .................................................................................................................................................... - 13 -
5.2.1. Minimum clearances .................................................................................................. Error! Bookmark not defined.
5.3. Installing the Battery Pack .......................................................................................................................................... - 14 -
5.3.1. Mounting to a wall................................................................................................................................................ - 14 -
5.4. Parallel use of battery ................................................................................................................................................. - 15 -
5.4.1. Parallel use of battery ( All off grid solar inverters )............................................................................................ - 15 -
5.4.2. Parallel use of battery on Canbus ( All hybrid on-off grid solar inverters) .......................................................... - 17 -
5.4.3. ADS guide Line .................................................................................................................................................... - 17 -
6. Product Warranty ..........................................................................................................................................- 20 -
6.1. ..................................................................................................................................................................................... - 20 -
6.2. ..................................................................................................................................................................................... - 20 -
6.3. ..................................................................................................................................................................................... - 20 -
6.4. Factory Warranty Scope ............................................................................................................................................. - 20 -
6.5. Warranty conditions .................................................................................................................................................... - 20 -

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1.Safety Precautions
It is very important and necessary to read the user manual carefully before installing or using the
battery. Failure to follow any of the instructions or warnings in this document can result in
electrical shock, serious injury, death, or may damage the battery and the whole system.
If the battery is stored for a prolonged time, it is requirement that they are charged every three to
six months, and the SOC should be no less than 80%.
The battery needs to be recharged within 12 hours, after fully discharging.
Do not expose cable outside.
All battery terminals must be disconnected before maintenance.
Do not use cleaning solvents to clean the battery.
Do not expose the battery to flammable or harsh chemicals or vapors.
Do not paint any part of battery, include any internal or external components.
Do not connect battery with PV solar wiring directly.
Any other extra object is prohibited to be inserted into any part of the battery.
Any warranty claims are excluded for direct or indirect damage due to items above.
1.1.Before Connecting
After unpacking, please check the battery and packing list first, if the battery is damaged or spare
parts are missing, please contact the dealer.
Before installation, be sure to cut off the grid power and make sure the battery is in the turned-off
mode;
Wiring must be correct, do not mix-connect the positive and negative cables, and ensure no short
circuit with the external device;
It is prohibited to connect the battery with AC power directly;
The embedded BMS in the battery is designed for 48VDC, please DO NOT connect battery
in series;
It is prohibited to connect the battery with different type of battery;
Please ensure the electrical parameters of battery system are compatible to inverter;
Keep the battery away from fire or water.
1.2.During operation
If the battery system needs to be moved or repaired, the power must be cut off first and the
battery is completely shutdown;
It is prohibited to connect the battery with different type of battery;
It is prohibited to put the batteries working with faulty or incompatible inverter;
In case of fire, only dry powder fire extinguisher can be used, liquid fire extinguishers are
prohibited;
Please do not open, repair or disassemble the battery. We do not undertake any consequences
or related responsibility due to violation of safety operation or violating of design, production and
equipment safety standards.

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2.Battery Specifications
Battery Specifications
Model No WG48100 WG48250WG48320
Nominal Parameters
Voltage 51.2V 51.2V 48V
Capacity 100Ah 200Ah 320Ah
Energy 5.12KwH 10.24KwH 13.44KwH
Dimensions (L x W x H) 680 x480 x180(220)mm 680x480x180(220)mm 900x565x200(220)mm
Weight 60.50kg 102.5kg 125.5kg
Basic Parameters
Life time(25°C) 20 years
Life cycles(80% DOD, 25°C) 8500 Cycles
Storage time / temperature 5 months @ 25°C; 3 months @ 35°C; 1 month @ 45°C
Operation temperature -20°C to 60°C @60+/-25% Relative Humidity
Storage temperature 0°C to 45°C @60+/-25% Relative Humidity
Lithium Battery Standard UL1973, UL9540A, IEC62619,CE-EMC, UN38.3, MSDS
Enclosure protection rating IP21
Electrical Parameters
Operation voltage 51.2 Vdc 51.2 Vdc 48 Vdc
Max. charging voltage 56Vdc 56 Vdc 52.5 Vdc
Cut-off Discharge Voltage 46 Vdc 46 Vdc 43 Vdc
Max. charging and discharging
current
100A/150A 100A/150A 100A/150A

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3.Introduction to the battery
3.1.Key Features
LiFePO4 composition – provides exceptional safety and longevity
High safety and reliability
8,500cycles/ 26years service life
Consistent performance over wide temperature range
Wall-mounted, convenient installation
Integrated state-of-the-artBMS tomanage and monitor battery information including voltage,
current and temperature as well asbalance cell charging/discharging rates
20 years’ warranty
3.2.Interface Introduction
This section details the interface functions of front and back panel.
Front interface:

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No
Description
Silk-screen
Remark
1
Anderson connector
+
Output terminal
2 Anderson connector - Output terminal
3 Dial switch ADS Set the address
4
CAN port
CAN
CAN port
5
RS485 port
RS485
RS485 port
6 Port Reset button RST For reset the batter
7
Battery holder
8
Switch
OFF/ON
Normal close
9 Handle
10
LED
ALM
Alarm indicator
11
LED
RUN
Operation indicator
12 LED CAPACITY Capacity indicator
13 LCD
14
LCD KEY
3.3.SOC Indicator & Status Indicator Guides
Chart 1: Battery Status

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Chart 2: Battery Capacity
Chart 3: Battery status

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3.4.Connectors
Charge / Discharge connectors: to connect the positive pole (+) and negative pole (-) from the
battery to the inverter via DC breaker.
Conect canbus communication port between battery and inverter.
USB to RS485: to get dynamic monitoring data of the battery from upper computer.
Address: Reserved Address portal for multiple parallel connections.
3.5.Wake Up button
Battery On: When battery is shut down, press this RST button for 6 seconds. It is activated
when the LED lights flicker from RUN light to the lowest capacity indicator.
Battery off: When battery is activated, press this button for 6 seconds. It will be shut down
when the LED lights flicker from lowest capacity indicator to RUN light.
3.6.Display function instruction
3.6.1.Screen Display

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3.6.2.Functional Specifications
Interface introduction
Main menu page
Electricity/dormancy activated, will show the welcome screen, press the MENU button to enter
the main menu page. As shown in the figure below：
Battery cells state

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Battery temperature
Battery Warning
Battery Capacity

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Key description
1)SW1----NEMU，SW2----ENTER，SW3----UP，SW4----DOWN
2) Each item is “》”or“--”as a beginning，among them“》”shows the current cursor position，
press UP or DOWN key can move the cursor position；with“》”end of the project，the
content of the said project has not shown, press ENTER key can enter the corresponding
page.
3) Press ESC key can be returned at the next higher level directory；In any position，press
NEMU key can return to the main menu page.
4) In a dormant state, press any key, can activate the screen.
Dormancy/shutdown
Under normal operation condition, with no keystrokes 1 minutes later, system will enter a
state of dormancy/shutdown.
Shutdown/dormancy state，press any key，screen can be activated.

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4.Safe handling guide
4.1.System Diagram
4.2.Tools
The following tools are required to install the battery pack:
Wire cutter
Crimping Modular Plier
Screw Driver
NOTE
Use properly insulated tools to prevent accidental electric shock or short circuits.
If insulated tools are not available, cover the entire exposed metal surfaces of the available
tools, except their tips, with electrical tape.
4.3.Safety Gear
It is recommended to wear the following safety gear when dealing with the battery pack:
Insulated gloves
Safety goggles
Safety shoes

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5.Installation
5.1.Inventory of items
Thoroughly inspect the packaging upon receipt of goods. If there is any item missing or if there is any
damage to the external packaging or to the unit itself upon unpacking, please contact us immediately.
NO. Item Quantity Specification
1
Battery Pack
1 PC
5.12KWH/10.24KWH/13.44KWH
2
Wall mounted Bracket and Screws
1 SET
One Bracket and 12pcs screws.
3
Power Cable
1 SET
35mm2 ( 4AWG) Black , Red
L 2.0 meter
8MM2 Terminal Standard
4
Canbus Cable
1PC
Battery canbus port to Inverter Canbus
port
L : 1.5 meter
5
Parallel com cable
1 PC
Battery com port to Battery com port for
parallel 16pcs at max
L: 1.0 meter

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5.2.Installation Location
Make sure that the installation location meets the following conditions:
The installation site must be suitable for the size and weight of the battery.
Must be installed on a firm surface to sustain the weight of battery.
The area is water proof.
There are no flammable or explosive materials in proximity
The ambient temperature is within the range from 0°C to 45°C.
The temperature and humidity is maintained at a constant level.
There is minimal dust and dirt in the area.
Installation must be vertical or tilted backwards by maximum 15° - avoid forward or sideway
stilt.
CAUTION
If the ambient temperature is outside the operating range, the battery pack stops operating to protect
itself. The optimal temperature range for the battery pack to operate is 0°C to 45°C. Frequent exposure
to harsh temperatures may deteriorate the performance and life of the battery pack.

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5.3.Installing the Battery Pack
5.3.1.Mounting to a wall
WARNING
In order to avoid electrical shock or other injury, inspect existing electronic or plumbing installations
before drilling holes.
The battery is heavy, please handle with care to avoid damage to the product or injury to the installer.
1.Choose suitable firm wall with thickness greater than 80mm.
2.Use the mounting frame as a template, mark the hole position.
3.Drill 8 holes according to the hole position, it is ø10 with depth 60mm.
4.Hammer the M8 screws to the above holes, and screw the nut. Note: Do not position screws
flush to the wall - leave 10 to 20 mm exposed.
5.Fix the mounting frame to the 8 screws.
6.Raise the battery a little higher than the mounting frame whilst maintaining the balance of the
battery. Hang the battery on the frame through the match hooks.
WARNING
Falling equipment can cause serious or even fatal injury: never mount the inverter on the bracket unless
you are sure that the mounting frame is firmly mounted on the wall after thorough checking.

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5.4 Parallel use of battery
5.4.1 Parallel use of battery ( All off grid solar inverters )
48vdc lifepo4 battery is a smart battery to match all off grid solar inverter ( 48VDC) types. When the
battery needs to be used in parallel, the maximum connection is 16 units, but we recommend 2-4 units
according to application. When connecting with off grid 48VDC solar inverters, it does not need to
add Canbus communication cables with inverters, if inverter brand factory does not have
Canbus, just plug and play use.
One pcs connect diagram
Two pcs connect diagram

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Three pcs connect diagram
Four pcs connect diagram
NOTE : IF YOU NEED MORE PARALLEL DETAILS, PLEASE CONSULT WITH ENERGTECH SOLAR SALES
ASAP.

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5.4.2 Parallel use of lifepo4 battery on Canbus
(hybrid on-off grid solar inverters)
When the battery needs to be used in parallel, the maximum connection is 16 units ( Canbus ) with
hybrid solar inverter, but we recommend to use 2-4 units according to application. The application
needs power and communication connections as below, choose suitable parallel power cables and
related connectors.
ADS guide Line
If you start to connect hybrid inverter, make sure you should consult with related inverter brand
sales manager before connection.

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One pcs connect diagram
Two pcs connect diagram

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Three pcs connect diagram
Four pcs connect diagram
NOTE : IF YOU NEED MORE PARALLEL DETAILS, PLEASE CONSULT WITH RELATED SALES MANAGER
ASAP.