Goodwe Lynx Home U Series User manual

V 1.3-2022-08-30
User Manual
Rechargeable Lithium Ion Battery System
Lynx Home U Series

I
User Manual V1.3-2022-08-30 Disclaimer
• All the information in this document is the property of the manufacturer. No part of this
document could be reproduced in any way for business use. Internal use is allowed.
• The manufacturer makes no representations or warranties express or implied, with respect
to this document or any of the equipment and/or software it may describe, including(with no
limitation) any implied warranties of utility, merchantability, or tness for any particular purpose.
All such representations or warranties are expressly disclaimed. Neither the manufacturer nor
its distributors or dealers shall be liable for any indirect, incidental, or consequential damages
under any circumstances.
• The exclusion of implied warranties may not apply in all cases under some statutes, and thus
the above exclusion may not apply.
• Specications are subject to change without notice. Every eort has been made to make this
document complete, accurate, and up-to-date. However, the manufacturer may need to make
some improvements under certain circumstances without advance notice. The manufacturer
shall not be responsible for any loss caused by this document including, but not limited to
omission errors, typographical errors, arithmetical errors, or listing errors in this documents.
Disclaimer
Limitation of Liability
The manufacturer shall not be liable for any consequences like battery damage or property loss
under the following circumstances:
• Modify, alter, or replace parts of the battery system without ocial authorization from the
manufacturer.
• Anyone except technicians from the manufacturer changes or erases the serial number.
• Establish a battery system that does not meet the criteria, safety regulations, and other
related requirements.
• Non-observance to the User Manual.
• Improper use or misuse of the battery.
• Inadequate ventilation.
• The maintenance routine does not follow accepted standards.
• Force majeure like earthquakes, storms, thunders, over voltage, or re hazards, etc.
• Any external factors.
Updates
The latest document contains all the updates made in earlier issues.
V1.0 2021-03-30
• First release.
V1.1 2021-07-19
• Updated 5.3 System Installation.
V1.2 2022-03-15
• Updated 2.2 Symbol Description.
V1.3 2022-08-30
• Updated 5.3.3 Cable Connection.
• Updated 6.2 Power On.
• Updated 6.5 Power O.
• Updated 07 Technical Parameters.

II
User Manual V1.3-2022-08-30
Content
TABLE OF CONTENTS
01 Safety Precaution.......................................................................01
02 Product Introduction.................................................................03
2.1 Product Description..................................................................................... 03
2.2 Symbol Description...................................................................................... 03
03 Battery Introduction .................................................................04
3.1 Appearance................................................................................................... 04
3.2 Dimensions ................................................................................................... 04
04 Storage and Package .................................................................05
4.1 Storage Environment................................................................................... 05
4.2 Packing List ................................................................................................... 05
05 System Installation....................................................................06
5.1 Installation Environment............................................................................. 06
5.2 Space Requirements.................................................................................... 06
5.3 System Installation ...................................................................................... 08
5.3.1 Floor Mounting ...................................................................................................... 08
5.3.2 Wall Mounting........................................................................................................ 09
5.3.3 Cable Connection .................................................................................................. 10
5.3.4 Install the Wire Harness Fix Bar........................................................................... 13
06 System Operation ......................................................................14
6.1 Check Before Power On .............................................................................. 14
6.2 Power On....................................................................................................... 14
6.3 Battery Parameter Settings ........................................................................ 16
6.4 Indicator Status(LX U5.4-L).......................................................................... 16
6.4.1 Normal State .......................................................................................................... 17
6.4.2 Alerting ................................................................................................................... 17
6.4.3 Faulty....................................................................................................................... 18
6.5 Indicator Status(LX U5.4-20) ....................................................................... 19
6.5.1 Normal State .......................................................................................................... 19
6.5.2 Alerting ................................................................................................................... 19
6.5.3 Faulty....................................................................................................................... 20
6.6 Power O ...................................................................................................... 21
6.7 Install the Plastic Cover............................................................................... 21
07 Technical Parameters ................................................................22
08 Maintenance............................................................................... 24
Remove the Plastic Cover............................................................................................... 24

User Manual V1.3-2022-08-30
01
01 Safety Precaution
01 Safety Precaution
DANGER
• Please keep Power O before any operations to avoid danger. Strictly follow all safety
precautions outlined in this manual and safety labels on the equipment.
• All installation operations should be performed by trained and knowledgeable technical
personnel who are familiar with local standards and electric systems. Learn about the
product before installation.
• Do not use the battery or the power control unit if it is defective, broken, or damaged.
• Do not disassemble, modify, or replace any part of the battery or the power control unit
without ocial authorization from the manufacturer.
• Damaged battery may leak electrolyte. Do not contact with the liquid leakage or volatile
matter. Please contact After-sales Service for help immediately.
WARNING
Anyone contact the leaked substance accidentally has to do as following:
• Breath in the leaked substance: Evacuate from the polluted area, and seek immediate
medical assistance.
• Eye contact: Rinse your eyes for at least 15 minutes with clean water and seek immediate
medical assistance.
• Skin contact: Thoroughly wash the touch area with soap and clean water, and seek immediate
medical assistance.
• Ingestion: Induce vomiting, and seek immediate medical assistance.
• Do not move the battery system if it is connected with external battery expansion modules.
Please contact After-sales Service to replace batteries or add batteries.
CAUTION
Transportation:
• Protect the battery system from damage during transportation and storage.
• Take the weight of the battery and the power control unit into account and carefully lift the
battery and the power control unit.
• Wear gloves when handling the battery.
• Do not hit, pull, drag, or step on the battery system or put unrelated items into any part of
the battery system.
• The transportation must be carried out by trained professionals. All operations during the
process have to be recorded.
• Keep the equipment stable to avoid dumping, which can result in equipment damage and
personal injuries.
• In the event of a re, please make sure that the carbon dioxide extinguisher or Novac1230
or FM-200 is nearby.
• The re cannot be put out by water or ABC dry powder extinguisher. Fireghters are required
to wear full protective clothing and self-contained breathing apparatus.
• The battery may explode when the ambient temperature exceeds 150℃.
• Please use appropriate tools and take protective measures when installing and maintaining
heavy equipment. Improper operations will cause personal injuries.
• Use professional insulating tools when operating the equipment under high voltage.
• Place the cables at lease 30mm away from the heating components or heat sources,
otherwise the insulation layer of the cables may be aging or broken due to high
temperature.
• Tie the cables of the same type together, and place cables of dierent types at leas 30mm
apart. Do not place the cables entangled or crossed.

01 Safety Precaution User Manual V1.3-2022-08-30
02
EU Declaration of Conformity
The Battery sold in the European market meets the following directives and requirements:
• Electromagnetic compatibility Directive 2014/30/EU (EMC)
• Electrical Apparatus Low Voltage Directive 2014/35/EU (LVD)
• Restrictions of Hazardous Substances Directive 2011/65/EU and (EU) 2015/863 (RoHS)
• Waste Electrical and Electronic Equipment 2012/19/EU
• Registration, Evaluation, Authorization and Restriction of Chemicals (EC) No 1907/2006
(REACH)
You can download the EU Declaration of Conformity on https://en.goodwe.com.

03
02 Product Introduction
User Manual V1.3-2022-08-30
Symbol Description Symbol Description
Potential risks exist. Wear proper
PPE before any operations.
Install the equipment away from
re sources.
High voltage hazard. Power o
the equipment rst before any
operations.
Keep the equipment away from
children.
Operate the equipment properly to
avoid explosion danger. No extinguishing with water.
The equipment contains corrosive
electrolytes. In case of a leak in
the equipment, avoid contact the
leaked liquid or gas.
Do not dispose of the equipment
with household garbage at its end
of life.
Read through the user manual
before any operations.
Put the battery in the right place
and recycle it in compliance with
local environmental regulations.
Pay attention to safety protection
during installation CE Mark
RCM Mark Grounding. To indicate PE cable
connection position.
2.1 Product Description
2.2 Symbol Description
02 Product Introduction
Goodwe Inverter
• This manual introduces Lynx Home U Series(LV) Battery System (hereinafter referred to as
the Battery System), including the product introduction, application, installation, commission,
and technical parameters, etc.
• At most 6 batteries can be connected in this Battery System.
• The battery system can be compatible with the following inverter series:

03 Battery Introduction
04
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3.1 Appearance
03 Battery Introduction
No. Parts
1 SOC Indicator
2 Switch Button
3 Button Indicator
4 Grounding Teminal
5 Power Cable Port
6 CAN COM Port
7 Ventilation Valve
8 Circuit-Breaker
3.2 Dimensions

04 Storage and Package
05
User Manual V1.3-2022-08-30
4.2 Packing List
• Check outer packing for damage and model before unpacking it. If you nd any damage or
the model is not what you requested, do not unpack the product and contact the after-sales
service as soon as possible.
• Check whether the deliverables are intact and complete rst after unpacking the battery.If
anything wrong, contact the after-sales service as soon as possible.
4.1 Storage Environment
04 Storage and Package
If the equipment is not to be installed or used immediately, please ensure that the storage
environment meets the following requirements:
• Pack the equipment using a packing box and put some desiccant in the box before sealing.
• Put the equipment back to the packing box if it is not to be installed in 3 days after
unpacking.
• Storage SOC: 25%~50%SOC. Charge and discharge the battery every 3 months.
• Recommended storage temperature: -20℃~40℃(less than one month) or 0℃~35℃(less than
one year).
• Recommended storage humidity: 0%~95%RH(no condensation). Do not install the battery if
any moist or condensation is found.
• Place the quipment in a cool place where away from direct sunlight.
• Keep the equipment away from inammable, explosive, and corrosive matters.
• Keep the equipment away from the rain.
Battery x 1
Power
Connector x 2
Terminal
Resistor x 1
Grounding
Terminal x 4
Plastic Cover x 1 Wall Mounting
Plate x 1
Expanshion
Bolt x 2
Anti-dumping
Bracket x 2
Wire Harness
Fix Bar x 2
M5 Assembling
Bolt x 8
User Manual x 1
M10 Expansion
Bolt x 6

05 System Installation
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5.1 Installation Environment
5.2 Space Requirements
05 System Installation
• Install the Battery System on the ground with sucient bearing capacity and atness.
Increase the bearing capacity and atness of the ground by laying the foundation, adding
bearing plates and so on.
• The optimal temperature for the battery is 20~40℃.
• Avoid exposing the equipment to direct sunlight or rain.
• Install the equipment away from heat/cold source.
• Do not install the equipment in the place where the temperature changes extremely.
• Install the equipment away from strong interferences to ensure its regular work.
• Keep children away from the equipment.
• Do not install the equipment in places prone to accumulate water.
• Do not put inammable or explosive matters near the equipment.
NOTICE
The space between the left and the right battery is a recommened distance. Keep the distance
as short as you can if there is no inuence to the operation.
Keep the
equipment away
from children.

05 System Installation
07
User Manual V1.3-2022-08-30
Installation Angle Requirements
• Install the equipment vertically, no tilt or upside down.
Mounting Support Requirements
• The mounting support shall be nonammable and reproof.
• Install the equipment on a surface that is solid enough to bear the product weight.
• Put the battery system near the wall and install the locking brackets to prevent the battery
from falling down

05 System Installation
08
User Manual V1.3-2022-08-30
NOTICE
If multi batteries are to be connected, check and select batteries with similar production date
and a same cell grade.
5.3 System Installation
5.3.1 Floor Mounting
Step1 Screw the anti-dumping bracke on the battery.
Step2 Align the battery and the wall, then put the anti-dumping bracket close to the wall. Mark
the drilling position and remove the battery.
Step3 Drill a hole on the wall using the driller. Hole diameter 10mm and depth 80mm.
Step4 Fix the expansion bolts, tightening torque: 10N·m.

05 System Installation
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User Manual V1.3-2022-08-30
5.3.2 Wall Mounting
Step1 Place the wall mounting plate close to the wall rmly, mark the drilling position and
remove the wall mounting plate.
Step2 Drill a hole on the wall using the driller. Hole diameter 13mm and depth 65mm.
Step3 Fix the M10 expansion bolts, tightening torque: 10N·m.
Step4 Install the battery on the mounting plate.
NOTICE
Wall mounting needs to be done by two persons.

05 System Installation
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User Manual V1.3-2022-08-30
NOTICE
• Connect the PE cable rst before installing the equipment. Disconnect the PE cable before
dismantling the equipment.
• The drawing force of the cables after crimping is at least 400N.
• Connect any one of the two ground cables to the ground. Reserve the other ground cable.
• The cross-sectional area of the PE cable conductor: 4-6mm2. The cable should meet
standards for outdoor use.
5.3.3 Cable Connection
Overview of the cable connection
Ground
Cable
Standard
Net Cable
Power Cable
for Negative
Pole
Power Cable
for Positive
Pole
Take SBP series as an example here.
Ground Cable Connection
Terminal resistor
Battery 1 Battery 2 Battery N
2≤N≤6
Cooper,
Step1 Prepare PE cable.
Step2 Crimp the PE cable.
Step3 Install the Heat shrink tube.
Step4 Connect the PE cable to the battery.

05 System Installation
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Power Cable Connection
NOTICE
• Connect the red power cable to the red wire harness, and the black power cable to the black wire
harness. The cross-sectional area of the crimping part is 25mm².
• Withstand Voltage: DC1500V; Temperature: -40℃~200℃.
• Stripped conductor length: 18±1mm.
• Secure the back shell and check whether there is any gap.
• Recommended tool: manual hydraulic press plier(mould:25mm²)
• Drawing force after crimping≥1200N.
• If a single battery is applied, you are suggested to connect any one of the two power ports and
cover the other port using the protective cover.
• Connect power cables between multi batteries in parallel, which means connect postive
pole of one battery to the positive pole of the next battery, and negative pole to negative
pole. Cover and protect the reserved power port of the last battery.
• The power cable between the batteries should be as short as it can be and meet installation
requirements.
Click
Step1 Prepare Power cable.
Step2 Disassemble the Power connector.
Step3 Insert the Power Cable into the Power connector.
Step4 Plug the Power connector into the Power Cable Port.

05 System Installation
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Communication Cable Connection
NOTICE
The two communication cables are the same.
• Do not use RJ45 cable with protective cover.
• When one battery is applied, connect one communication cable to the inverter by RJ45
connector and connect the other cable to the terminal resistance.
• When multiple batteries are applied, connect the communication ports in series using net
cables. Connect one communication cable of the last battery to the terminal resistance.
RJ45 Registered Jack CAN COM Port
Step1 Remove the waterproof module.
Step2 Disassemble the waterproof module.
Step3 Route the cable through the waterproof module.
Step4 Connect the communication cable to the battery.
PIN LX U5.4-L LX U5.4-20
1 N/A RS485_A
2 N/A RS485_B
4 CAN_H CAN_H
5 CAN_L CAN_L
3,6,7,8 N/A N/A

05 System Installation
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5.3.4 Install the Wire Harness Fix Bar
Installing the terminal resistor

14
06 System Operation User Manual V1.3-2022-08-30
06 System Operation
6.2 Power On
6.1 Check Before Power On
No. Items
1The equipment is installed rmly in a place where is convenient for operation and
maintenance. The installation place is clean and well ventilated.
2The ground cable, power cable, communication cable and terminal resistance are
connected correctly and securely.
3The cable ties meet the cabling requirements and are reasonably distributed. No
cables or ties are broken.
4Unused ports are sealed.
Check the following items before power on. Otherwise, the Battery System may be damaged.
NOTICE
• The DC breaker between the inverter and the battery, and between the two batteries, shall
be installed in accordance with local laws and regulations.
Step1 (Optional) Turn on the breaker between the inverter and the battery system.
Step2 (Optional) Turn on the breaker between the batteries (For parallized batteries).
Step3 Turn on the inverter in the system following the instructions in the user manual of the
inverter.
Step4 Turn on the Circuit-Breaker.
Step5 Press the switch button of all batteries in 30s, otherwise the equipment will start
alarming.
Step1 (Optional) Turn on the breaker between the inverter and the battery system.
Step2 (Optional) Turn on the breaker between the batteries (For parallized batteries).
Step3 Turn on the Circuit-Breaker.
Step4 Press the battery buttons. (Only press one battery's button when batteries are in
parallized connection.)
Step5 Turn on the inverter in the system following the instructions in the user manual of
the inverter.
LX U5.4-L
LX U5.4-20

15
06 System Operation
User Manual V1.3-2022-08-30
Inverter Battery
DC Breaker (Only
for Australia )
Single battery
Parallized batteries
Inverter
Battery1 Battery2
DC Breaker
(Only for Australia )
DC Breaker
(Only for
Australia )
2≤N≤6
Battery N

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06 System Operation User Manual V1.3-2022-08-30
Select the right options on PV Master after connecting the battery and the inverter.
Select “LX U5.4-L or LX U5.4-20”
on PV Master.
APP Installatin and Connection:
Select the battery model on PV Master:
6.3 Battery Parameter Settings
Download
and Install
PV Master
Connect the smartphone
with the inverter.
Wi-Fi SSID: Solar-WiFi**
Passwaord: 12345678
LX U5.4-L*1 or LX U5.4-20*1
LX U5.4-L*2 or LX U5.4-20*2
LX U5.4-L*3 or LX U5.4-20*3
LX U5.4-L*4 or LX U5.4-20*4
LX U5.4-L*5 or LX U5.4-20*5
LX U5.4-L*6 or LX U5.4-20*6
NOTICE
"Battery Selection Abnormal"
will be displayed if you select
the wrong battery model.
Please select the right battery
model accordingly.
6.4 Indicator Status(LX U5.4-L)
Button Indicator Status
Green Light Standby, Working, Alert
Red Light Faulty
SOC Indicator Button Indicator

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06 System Operation
User Manual V1.3-2022-08-30
Button Indicator SOC Indicator Description
Standby:green light
blinking for 1s
Working:green light on
SOC﹤5%
5%≤SOC﹤25%
25%≤SOC﹤50%
50%≤SOC﹤75%
75%≤SOC﹤95%
SOC≥95%
6.4.1 Normal State
Button
Indicator SOC Indicator Alerting Solutions
Green light
blingking for 3s
Temperature
Exception Power o and restart after 2 hours.If the
problem persists, please contact GoodWe.
High Temperature
Low Temperature
Discharging
Power o and Wait for the temperature to
increase. Restart the battery. If the problem
persists, please contact GoodWe.
Overcurrent When
Charging
Restart the battery. If the problem persists,
please contact GoodWe.
Overcurrent When
Discharging
Overvoltage
Under voltage
Press the button consecutively for 5 times in 10s
if you can charge the battery. The voltage will
recover to normal.
Low Temperature
Charging
Power o and Wait for the temperature to
increase. Restart the battery. If the problem
persists, please contact GoodWe.
The cell voltage
dierence is
extremely high
Power o and restart after 2 hours.If the
problem persists, please contact GoodWe.
6.4.2 Alerting
NOTICE
• Restart the battery by pressing the switch button.
• If the batteries power o under undervoltage protection and multiple batteries are
connected, just press the button of any one battery consecutively for 5 times to activate them.