BYD Battery-Box LV User manual

BYD Battery-Box LV Installation Guidance
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BYD Battery-Box LV Installation Guidance
Battery-Box L 3.5/7.0/10.5/14.0
Version1.0

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Contents
1 SAFETY .................................................................................................................................................................................. 6
1.1 DANGER .......................................................................................................................................................................... 6
1.2 WARMING ...................................................................................................................................................................... 6
1.3 CAUTION......................................................................................................................................................................... 6
1.4 ENVIRONMENTAL AND TRANSPORT REQUIREMENT..................................................................................... 7
1.5 NOTICE .......................................................................................................................................................................... 8
2 INFORMATION .................................................................................................................................................................. 8
2.1 PRODUCT PROFILE .................................................................................................................................................. 8
2.2 APPEARANCE DIMENSION ...................................................................................................................................... 8
2.2.1 BCU INTRODUCTION .................................................................................................................................... 9
2.2.2 DESCRIPTION OF B-PLUS L 3.5 INTERFACE AND TERMINAL ................................................10
3 INSTALLATION...................................................................................................................................................................10
3.1 PREPARATION..............................................................................................................................................................10
3.1.1 TOOLS ..................................................................................................................................................................10
3.1.2 PERSONAL PROTECTIVE EQUIPMENT ...............................................................................................11
3.2 DELIVERY CONTENTS................................................................................................................................................11
3.3 INSTALLATION STEPS................................................................................................................................................12
3.3.1 UNPACKIN..................................................................................................................................................... 12
3.3.2 LEVEL............................................................................................................................................................... 12
3.3.3 MOUNTING RACK ....................................................................................................................................... 14

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3.3.4 BATTERY MODULE INSTALLATION ..............................................................................................................15
3.3.5 OPEN THE BCU COVER....................................................................................................................................15
3.3.6 POWER CABLES & GROUND CABLE CONNECTION..............................................................................16
3.3.7 COMMUNICATION CABLE & WIFI CABLE CONNECTION ...................................................................16
3.3.8 INSTALLATION COMPLETE FOR SINGLE SYSTEM...................................................................................17
3.3.9 INSTALLATION COMPLETE FOR PARALLEL SYSTEM CONNECTION .............................................. 17
3.3.10 WIFI SETTING............................................................................................................................................. 18
3.3.10.1LOGIN......................................................................................................................................................... 18
3.3.10.2 CONFIGURE THE NETWORK............................................................................................................... 18
3.3.10.3 WIFI STATUS INDICATOR ..................................................................................................................... 18
4CHECKING LIST....................................................................................................................................................19
4.1 CHECK THE BATTERY-BOX................................................................................................................................ 19
4.2 CHECK THE INVERTER ....................................................................................................................................... 19
5 RUN .......................................................................................................................................................................................20
5.1TURN ON THE BATTERY-BOX SYSTEM........................................................................................................... 20
5.2 TURN OFF THE BATTERY-BOX SYSTEM......................................................................................................... 20
5.3 SYSTEM AND WIFI STATUS INDICATOR........................................................................................................ 20
5.3.1 SYSTEM STATUS INDICATOR .................................................................................................................... 20
5.3.2 WIFI STATUS INDICATOR........................................................................................................................... 20
6 UPDATE THE FIRMWARE................................................................................................................................................21
6.1 DOWN LOAD THE FIRMWARE...............................................................................................................................21

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6.2 UPDATE........................................................................................................................................................................21
6.2.1UPDATE METHODS ...................................................................................................................................... 21
6.2.2 UPDATE .......................................................................................................................................................... 21
7 COMPATIBLE INVERTER LIST .........................................................................................................................................22
8 COMMON ISSUES AND SOLUTIONS .........................................................................................................................22
8.1 COMMON ISSUES OF BYD BATTERY-BOX LV AND SOLUTIONS............................................................ 22
8.2 EMERGENCY......................................................................................................................................................... 23
APPENDIX ................................................................................................................................................................................24
1. CAN INTERFACE DEFINITION OF BMU & INVERTER .........................................................................................24
2. MINIMUM CONFIGURATION TABLE AND LIST OF MATCHED INVERTERS................................................24
2.1 SMA......................................................................................................................................................................... 24
2.1.1 CONNECTION WITH SMA......................................................................................................................... 24
2.1.2 MINIMUM CONFIGURATION WITH SMA SUNNY ISLAND INVERTER .......................................... 25
2.2 GOODWE......................................................................................................................................................................26
2.2.1 CONNECTION WITH GOODWE....................................................................................................................26
2.2.2 MINIMUM CONFIGURATION WITH GOODWE INVERTER ..................................................................26
2.2.2.1 MINIMUM CONFIGURATION WITH ES...................................................................................................26
2.2.2.2 MINIMUM CONFIGURATION WITH EM .................................................................................................27
2.2.2.3 MINIMUM CONFIGURATION WITH SBP................................................................................................27
2.3 VICTRON ......................................................................................................................................................................27

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2.3.1 CONNECTION WITH VICTRON................................................................................................................ 28
2.3.2 MINIMUM CONFIGURATION WITH VICTRON INVERTER................................................................. 28
2.3.2.1 MINIMUM CONFIGURATION WITH MULTIPLUS ............................................................................. 28
2.3.2.2 MINIMUM CONFIGURATION WITH MULTIGRID ............................................................................. 29
2.3.2.3MINIMUM CONFIGURATION WITH QUATTRO................................................................................. 29
2.3.2.4 MINIMUM CONFIGURATION WITH CCGX OF EASYSOLAR.......................................................... 30
2.4 SUNGROW.................................................................................................................................................................30
2.4.1CONNECTION WITH SUNGROW...................................................................................................................31
2.4.2 MINIMUM CONFIGURATION WITH SUNGROW................................................................................. 31
2.4.2.1 MINIMUM CONFIGURATION WITH SH5K......................................................................................... 31
3 PARAMETER SETTINGS OF INVERTER .......................................................................................................................32
3.1 SMA CHARGER MIN CAPACITY...........................................................................................................................32
3.2 GOODWE CHARGER MIN CAPACITY ................................................................................................................33
3.3 VICTRON CHARGER MIN CAPACITY .................................................................................................................33
3.4 SUNGROW CHARGER MIN CAPACITY..............................................................................................................33
4 TROUBLESHOOTING AND MAINTENANCE .............................................................................................................33
4.1 BATTERY-BOX TROUBLESHOOTING AND MAINTENANCE.......................................................................33
4.2 INVERTER TROUBLESHOOTING AND MAINTENANCE...............................................................................34
4.2.1 ALARM CODE DISPLAYED ON THE SRC OF SMA SUNNY ISLAND AND SOLUTION.................34
4.2.2 ALARM DISPLAYED ON THE APP OF GOODWE AND THE SOLUTION...........................................35

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1 Safety
This section contains safety information that must be observed at all times when working on or with batteries. To
prevent personal injury or property damage and to ensure long-term operation of the batteries, read this section
carefully and observe all safety information at all times.
For installation, it must be installed in a location complying with IP55 regulation. If the Installation location does
not comply with IP55, this may cause product failure and it will not be guaranteed for any related accident or
damage.
1.1 Danger
Please cut off the power supply and turn off the battery in emergency. For example, when there is an emergency
such as smoke, fire, burning, explosion, etc.
1.2 Warming
a) When increase battery, power off the battery and other power input first.
b) Disconnect battery from power and load, then power off battery before installation and maintenance.
c) Continuous operation on a damaged battery can result in dangerous situation that may cause severe injury due to
electrical shock.
d) Can't use the deformation of the battery.
e) By checking to verify the installation Settings are correct.
1.3 Caution
a) Do not disassemble the battery.
b) Do not touch the battery pack with wet hands.
c) Do not crush, drop or puncture the battery.
d) Always dispose according to local safety regulations.
e) Store and recharge battery according to user manual strictly.
f) Ensure reliable grounding.
g) Do not reverse polarity
h) Do not short circuit the terminals, remove all jewelry items that could product a short circuit.
i) Do not stack up batteries without package.
j) The packed batteries are not allowed to be stacked up more than specified layers stipulated on the package.
k) After installation, if the system cannot work properly, please contact the after-sales service personnel. If it still
cannot be solved, make sure to turn off the Battery-Box before you leave the site.

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1.4 Environmental and transport requirement
a) Do not expose the battery to temperature above 50℃.
b) Do not place the battery near any heat sources and avoid sparks.
c) Do not expose the battery to moisture or liquids.
d) Stay away from corrosive gases and liquids, as well as radiation.
e) Do not expose the battery to direct sunlight.
f) Place battery in secure location away from children and animals.
g) Do not allow the battery power terminals to touch conductive objects such as wires.
h) The installation should be clean、flat、dry. Not be installed in damp situations ,including:
 Baths, showers and other fixed water containers
 Swimming pools, paddling pools and spa pools or tubs
 Fountains and water features
 Saunas
 Refrigeration rooms
 Sanitization and general hosing-down operations
i) The Battery-Box LV system can be installed at altitudes of up to 2000m above Mean Sea Level.
j) The product installation location should be reserved for 0.9m safe passage distance.
k) Due to the heavy weight of Battery-Box L 3.5-14.0, please use strong packaging and safety protection equipment during
transportation, to ensure safety and avoid accidental damage. Please handle with care.
l) In the process of transportation and storage, the goods are not allowed to be stacked in layers or at a height greater than
specified.
Temperature and humidity

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1.5 Notice
Skilled personnel recognized
This manual and the tasks and procedures described herein are intended use by skilled workers only. A skilled
worker is defined as a trained and qualified electrician or installer who has all of the following skills and experience:
a) Knowledge of the function principles and operation of on-grid systems.
b) Knowledge of the dangers and risks associated with installing and using electrical devices and acceptable
mitigation methods.
c) Knowledge of the installation of electrical devices
d) Knowledge of and adherence to this manual and all safety precautions and best practices.
2. Information
2.1 Product profile
This user manual introduces the BYD Battery-Box LV product information, using guidance, safety, common issues
and actions.
The BYD Battery-Box LV is an energy storage unit that can be used in On-grid system for commercial & residential
application.
2.2 Appearance dimension

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2.2.1 BCU Introduction
The battery management and control part, which contains BCU and charge-discharge relay, and connected to the
battery modules underneath and to inverter or BMU above.
*①Used in parallel with BCU
Definition of BCU Functional Interfaces

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2.2.2 Description of B-Plus L 3.5 Interface and Terminal
The battery module provides energy and sends the information about the cell voltage and cell temperature in the
battery module to the upper-layer BCU.
3. Installation
a) Wear appropriate labor protection products before installation.
b) The connecting cables for installing batteries shall be as short as possible, to prevent excessive voltage drop.
c) Batteries of different capacity, different P/N or from different manufacturers cannot be connected.
d) After installation, make sure power cables and communication cables, grounding cables, etc. are properly connected
according to the installation manual.
e) The installation place shall be on a flat ground, without accumulated water.
3.1 Preparation
3.1.1 Tools
Wire clamp socket spanner Phillips screwdriver levelling instrument wrench churn drill

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3.1.2 Personal protective equipment
3.2 Delivery contents
Type
3.5KWh
7.0 KWh
10.5 KWh
14.0KWh
BCU + Base
1
1
1
1
B-Plus L3.5
1
2
3
4
User manual
1
1
1
1
QUICK REFERENCE GUIDE
1
1
1
1
Packing of BCU + Base
cross screw
pylons
expansion bolt
PG connector
WIFI module
M6*6
M8*3
M10*3
1
5
2
1
Packing of B-plus L 3.5
cross screw
6

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3.3 Installation steps
3.3.1 Unpacking
BCU + BASE
Battery Module
3.3.2 Level
a) Separate BCU and base
b) Adjust the level of the base

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The base is placed against the wall, and the distance between the base and the wall is 27-37mm.

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3.3.3 Mounting Rack
Install the hanger in the middle of the top of the base. The installation location is as shown in the figure.

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3.3.4 Battery Module Installation
3.3.5 Open the BCU Cover

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3.3.6 Power Cables & Ground Cable Connection
3.3.7 Communication Cable & WIFI Cable Connection

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3.3.8 Installation Complete for Single System
3.3.9 Installation Complete For Parallel System Connection
Fit in the
BCU, lock
the side lock,
installation
finish.

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3.3.10 WIFI Setting
3.3.10.1 Login
You can use a computer, mobile phone or IPAD to set up and configure;
This number is the same as the S/N on the WIFI nameplate. No password is needed here.
3.3.10.2 Configure the Network
Steps: Login>Wizard
Please select your current wireless network:
Your router password.
*After clicking "OK", you need to wait for 15 seconds to close the webpage.Otherwise, the configuration is unsuccessful. Need
to reconfigure.
3.3.10.3 WIFI Status indicator

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4 Checking list
4.1 Check the Battery-Box
Task
Check
Positive cable
Negative cable
Ground cable
CAN cable
WIFI cable
Jumper(*Check this in parallel with three sets)
Screw(Battery Module; BCU, Positive, Negative and
Ground cable)
Process the WIFI connection, and the WIFI LED light is
steady ON
The BCU LED light is working normally
4.2 Check the inverter
Task
Check
Positive cable
Negative cable
Ground cable

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CAN cable
Battery related parameter Settings
*The above inspection is only related to battery. For other inspection, please refer to the inverter related manual
5 RUN
5.1 Turn on the Battery-Box system
Press the switch with your finger for about one second.
5.2 Turn off the Battery-Box system
Press the switch with your finger for about 3 to 5 seconds.
5.3 System and WIFI Status indicator
5.3.1 System status indicator
5.3.2 WIFI status indicator