BYD Battery-Box L Series 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
2 PRODUCT OVERVIEW......................................................................................................................................... 7
3 BCU INTRODUCTION.......................................................................................................................................... 7
4 DESCRIPTION OF B-PLUS L 3.5 INTERFACE AND TERMINAL.................................................... 8
5PREPARATION ......................................................................................................................................................... 9
5.1 INSTALLATION INSTRUCTIONS......................................................................................................................... 9
5.2 PACKING INFORMATION AND SYSTEM STRUCTURE CONFIGURATION LIST..................................... 10
5.2.1 PACKING INFORMATION........................................................................................................................... 10
5.2.2 CONFIGURATION LIST................................................................................................................................ 10
5.3 INSTALLATION TOOLS....................................................................................................................................... 11
5.4 PERSONAL PROTECTION EQUIPMENT ......................................................................................................... 11
6 INSTALLATION...................................................................................................................................................... 12
6.1 UNPACKING.......................................................................................................................................................... 12
6.2 LEVELING BOLT.................................................................................................................................................... 12
6.3 MOUNTING RACK............................................................................................................................................... 14
6.4 BATTERY MODULE INSTALLATION ................................................................................................................. 15
6.5 OPEN THE BCU COVER...................................................................................................................................... 15
6.6 POWER CABLES & GROUND CABLE CONNECTION .................................................................................. 16
6.7 COMMUNICATION CABLE & WIFI CABLE CONNECTION........................................................................ 16

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6.8 INSTALLATION COMPLETE FOR SINGLE SYSTEM....................................................................................... 17
6.9 INSTALLATION COMPLETE FOR PARALLEL SYSTEM CONNECTION........................................................17
6.10 WIFI SETTING..................................................................................................................................................... 17
6.10.1 LOGIN........................................................................................................................................................... 18
6.10.2 CONFIGURE THE NETWORK .................................................................................................................. 18
6.11 RUN...................................................................................................................................................................... 18
6.11.1 TURN ON THE SYSTEM............................................................................................................................ 18
6.11.2 TURN OFF THE SYSTEM........................................................................................................................... 18
6.11.3 SYSTEM AND WIFI STATUS INDICATOR.............................................................................................. 19
6.11.3.1 SYSTEM STATUS INDICATOR................................................................................................... 19
6.11.3.2 WIFI STATUS INDICATOR ......................................................................................................... 19
7 COMPATIBLE INVERTER LIST........................................................................................................................ 19
8 COMMON ISSUES AND SOLUTIONS...................................................................................................... 19
8.1 COMMON ISSUES OF BYD BATTERY-BOX LV AND SOLUTIONS............................................................ 19
8.2 EMERGENCY......................................................................................................................................................... 20
APPENDIX 1 MINIMUM CONFIGURATION WITH DIFFERENT BRANDS OF
INVERTERS ................................................................................................................................................................ 21
1 SMA............................................................................................................................................................................. 21
1.1 CONNECTION WITH SMA................................................................................................................................. 21
1.2 MINIMUM CONFIGURATION WITH SMA SUNNY ISLAND INVERTER.................................................. 21
1.3 SMA CHARGER MIN CAPACITY....................................................................................................................... 22

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1.4 NORMAL ALARM AND SOLUTION DISPLAY ON SMA SUNNY ISLAND SRC...................................... 23
2 GOODWE ................................................................................................................................................................. 25
2.1 CONNECTION WITH GOODWE ....................................................................................................................... 25
2.2 MINIMUM CONFIGURATION WITH GOODWE INVERTER ....................................................................... 25
2.2.1 MINIMUM CONFIGURATION WITH ES................................................................................................ 25
2.2.2 MINIMUM CONFIGURATION WITH EM .............................................................................................. 25
2.2.3 MINIMUM CONFIGURATION WITH SBP ............................................................................................. 26
2.3 GOODWE CHARGER MIN CAPACITY ............................................................................................................. 26
3 VICTRON................................................................................................................................................................... 26
3.1 CONNECTION WITH VICTRON........................................................................................................................ 26
3.2 MINIMUM CONFIGURATION WITH VICTRON INVERTER........................................................................ 27
3.2.1 MINIMUM CONFIGURATION WITH MULTIPLUS............................................................................... 27
3.2.2 MINIMUM CONFIGURATION WITH MULTIGRID............................................................................... 28
3.2.3 MINIMUM CONFIGURATION WITH QUATTRO.................................................................................. 28
3.2.4 MINIMUM CONFIGURATION WITH CCGX OF EASYSOLAR ........................................................... 29
3.3 VICTRON CHARGER MIN CAPACITY .............................................................................................................. 29
4 SUNGROW .............................................................................................................................................................. 30
4.1 CONNECTION WITH SUNGROW .................................................................................................................... 30
4.2 MINIMUM CONFIGURATION WITH SUNGROW......................................................................................... 30
4.2.1MINIMUM CONFIGURATION WITH SH5K ........................................................................................... 30
4.3 SUNGROW CHARGER MIN CAPACITY........................................................................................................... 30

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APPENDIX 2: COMMON FAILURES DISPLAYED ON INVERTER AND SOLUTION............. 31
1. ALARM CODE DISPLAYED ON THE SRC OF SMA SUNNY ISLAND AND SOLUTION
…………………………………………………………………………………………………………………………………………………………………………….31
2. ALARM DISPLAYED ON THE APP OF GOODWE AND THE SOLUTION.......................... 32

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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.
WARNING
Environmental requirement
Do not expose the battery to temperature above 50℃.
Do not place the battery near any heat sources.
Do not expose the battery to moisture or liquids.
Do not expose the battery to direct sunlight for extended periods of time
Place battery in secure location away from children and animals.
Do not allow the battery power terminals to touch conductive objects such as wires.
The Battery-Box LV system can be installed at altitudes of up to 2000m above Mean Sea Level.
Operation caution
Do not disassemble the battery.
Do not touch the battery pack with wet hands.
Do not crush, drop or puncture the battery.
Always dispose according to local safety regulations.
Store and recharge battery according to user manual strictly.
Ensure reliable grounding.
Do not reverse polarity
Do not short circuit the terminals, remove all jewelry items that could product a short circuit.
Disconnect battery from power and load, then power off battery before installation and maintenance.
Do not stack up batteries without package.
The packed batteries are not allowed to be stacked up more than specified layers stipulated on the package.
Continuous operation on a damaged battery can result in dangerous situation that may cause severe injury due to
electrical shock.

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2 Product Overview
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.
3 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.

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*①Used in parallel with BCU
Definition of BCU Functional Interfaces
4 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.
8
7

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5Preparation
5.1 Installation Instructions
a) Wear appropriate labor protection products before installation.
b) The battery shall be installed in a place away from heating source and avoid sparks. The safety distance is greater than
0.5m.
c) The connecting cables for installing batteries shall be as short as possible, to prevent excessive voltage drop.
d) Batteries of different capacity, different P/N or from different manufacturers cannot be connected.
e) After installation, ensure the positive and negative terminals of BCU and inverter are connected correctly.
f) The installation place shall be on a flat ground, without accumulated water.
g) Please install the system in a location where sunlight may not reach
Installation environment requirements

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5.2 Packing Information and System Structure Configuration List
5.2.1 Packing Information
BCU + BASE
Battery Module *n=1-4 Module
5.2.2 Configuration List
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 Installation Manual
1
1
1
1
Packing of BCU & BASE

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Packing of B-Plus L 3.5
5.3 Installation Tools
Tools
5.4 Personal Protection Equipment
Insulated Gloves Safety Shoes
3.5
7.0
10.5
14.0

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6Installation
6.1 Unpacking
Base + BCU
Battery Module *n=1-4 Module
6.2 Leveling Bolt
a) Separate BCU and base
Battery
Pearl wool
Carton

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b) Adjust the level of the base
The base is placed against the wall, and the distance between the base and the wall is 27-37mm.

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6.3 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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6.4 Battery Module Installation
6.5 Open the BCU Cover

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6.6 Power Cables & Ground Cable Connection
6.7 Communication Cable & WIFI Cable Connection

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6.8 Installation Complete for Single System
6.9 Installation Complete for Parallel System Connection
6.10 WIFI Setting
Fit in the
BCU, lock
the side lock,
installation
finish.

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6.10.1 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
6.10.2 Configure the Network
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.
6.11 Run
6.11.1 Turn on the System
Press the switch with your finger for about a second.
6.11.2 Turn off the System
Press the switch with your finger for about 3--5 second.

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6.11.3 System and WIFI Status Indicator
6.11.3.1 System Status Indicator
6.11.3.2 WIFI Status Indicator
7 Compatible Inverter List
To make sure that the system can works normally, please use BYD compatible inverter and select battery quantity
correctly based on the “Minimum Configuration with Different Brands of Inverters” in Appendix 1 in this user
manual.
8 Common Issues and Solutions
8.1 Common Issues of BYD Battery-Box LV and Solutions
Issue Description
Possible causes
Solution
contactor off
1. Battery voltage is too low
Please contact our after-service provider
immediately.

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2. Battery voltage is too high
3. Battery temperature is too high
4. Battery current is too high
5. Other hardware failures.
8.2 Emergency
Please cut off the power supply and turn off the battery in emergency.