BYD Battery-Box HV series User manual

Version 4.0
BYD Battery-Box HV User Manual
Battery-Box H 6.4/7.7/9.0/10.2/11.5

BYD Battery-Box HV User Manual
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Contents
1 General Information..........................................................................................................................2
1.1 Validity.....................................................................................................................................................................2
1.2 Application.............................................................................................................................................................2
1.3 Intended Use.........................................................................................................................................................2
1.4 Definition................................................................................................................................................................2
1.5 Identifying The Product.....................................................................................................................................3
2 Safety...................................................................................................................................................3
3 Technical Data....................................................................................................................................4
4 Technical Items ..................................................................................................................................5
5 Product Overview..............................................................................................................................5
5.1 Brief Introduction ................................................................................................................................................5
5.2 BYD Battery-Box HV Configuration Table...................................................................................................6
5.3 BCU Introduction.................................................................................................................................................6
5.3.1 BCU Interface Introduction (Left Side)..................................................................................................7
5.3.2 BCU Interface Introduction (Right Side)...............................................................................................7
5.3.3 BCU Functional Interfaces Definition ....................................................................................................7
6 Cleaning and Maintenance ..............................................................................................................8
6.1 Cleaning..................................................................................................................................................................8
6.2 Maintenance..........................................................................................................................................................8
6.2.1 Recharge Requirements During Normal Storage.............................................................................8
6.2.2 Recharge Requirements When Over Discharged .............................................................................8
7 Compatible Inverter List...................................................................................................................9
8 Common Issues and Solutions ........................................................................................................9
8.1 Common Issues of BYD Battery-Box HV and Solutions.........................................................................9
8.2 Common Issues Displayed On Inverter and Solutions...........................................................................9
8.3 Emergency..............................................................................................................................................................9
9 Warranty ...........................................................................................................................................10
Contact Information...........................................................................................................................11

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1 General Information
1.1 Validity
This user manual is applicable to the BYD Battery-Box H 6.4 / 7.7 / 9.0 / 10.2 / 11.5.
1.2 Application
This user manual contains BYD Battery-Box HV product information, usage guidance, safety
information, and details on common operating issues and subsequent corrective actions.
BYD Battery-Box HV is an energy storage unit that is designed to be used in residential on-grid
applications with the capability for short-term backup.
1.3 Intended Use
Notes regarding intended use:
 BYD Battery-Box HV is not suitable for supporting life-sustaining medical devices. A power
outage must not lead to the inability to use life-sustaining medical devices and subsequent
personal injury.
 This product is intended for use only in accordance with the information provided in the
enclosed documentation and with the locally applicable standards and regulations. Any
other application may cause personal injury or property damage.
 The illustrations in this manual are meant only to help explain system configuration
concepts, includes usage guidance, safety precautions, and common operating issues and
subsequent corrective actions.
 Alterations to the product, e.g. changes or modifications, are only permitted with the
express written permission of BYD. Unauthorized alterations will void warranty claims. BYD
shall not be held liable for any damage caused by such changes. Any use of the product
other than that described in the Intended Use section does not qualify as appropriate. The
enclosed documentation is an integral part of this product. Keep the documentation in a
convenient place for future reference and observe all instructions contained therein. The
type label (see Section 1.5) must remain attached to the product.
 BYD Battery-Box HV series products must work with compatible inverters which are listed
in the “Compatible Inverter List” section of this manual.
 Please contact BYD or local after-service providers within 1 week once the user decides to
cease using their BYD Battery-Box products.
 The Battery-Box HV system can be installed at altitudes of up to 2000m above Mean Sea
Level.
1.4 Definition
Battery-Box H 6.4~11.5 components are defined as below:
 BYD Battery-Box HV: High-voltage household energy storage battery system.
 B-Plus H 1.28: Battery module. The Battery module provides the energy and sends the
information about the cell voltage and cell temperature in the battery module to the upper-
layer BCU. The nominal capacity of the B-Plus H 1.28 battery is 1.28kWh.

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 BCU: Battery Control unit and Base. Two parts consisting of both the battery management
and control component mounted on top of the battery modules as well as structural base,
which physically supports the battery modules underneath. The top portion of the BCU is
responsible for communication to and connection with the inverter or BMU.
1.5 Identifying The Product
The type label contains the product identification information, and is attached on the product. For
safe usage, the user must be well-informed of the contents in the type label. The type label includes:
2 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 corrosive gases 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
Operation Precautions
 Do not disassemble the battery
 Do not touch the battery pack with wet hands
 Do not crush, drop or puncture the battery

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 Always dispose of the product according to local safety regulations
 Store and recharge battery in a manner in accordance with this user manual
 Ensure reliable grounding
 Do not reverse the polarity or connect in series
 Do not short circuit the terminals, remove all jewelry items that could product a short circuit
before installation and handling
 Disconnect battery from power/load and then power off battery before installation and
maintenance
 When storing or handing, do not stack up batteries when outside protective package
 Packaged batteries should not be stacked more than specified number stipulated on the
package
 Continued operation of a damaged battery can result in dangerous situation that may cause
severe injury due to electrical shock
3 Technical Data
1
Test conditions: 100% DOD, 0.2C charge & discharge @+25℃.System Usable Energy may be variant with different
inverter brands
2
-10℃~+12℃will be derating
3
Detailed information refer to BYD Battery-Box Compatible Inverter List
Model
Battery-Box
H 6.4
Battery-Box
H 7.7
Battery-Box
H 9.0
Battery-Box
H 10.2
Battery-Box
H 11.5
Battery Module
B-Plus H 1.28 (1.28kWh,24.7kg)
5 modules
6 modules
7 modules
8 modules
9 modules
Usable Energy
1
(kWh)
6.4
7.68
8.96
10.24
11.52
Max Output Power(kW)
6.4
7.68
8.96
10.24
11.52
Peak Output Power(kW)
12.8, 30s
15.36, 30s
17.92, 30s
20.48, 30s
23.04, 30s
Round-Trip Efficiency
≥95.3% (Under test condition [1] )
Nominal Voltage(V)
256
307
358
409
460
Operating Voltage Range(V)
200~282
240~338
280~394
320~451
360~500
Communication
RS485/CAN
Dimension(W x H x D mm)
580 × 894 ×
380
580 × 1014
×380
580 × 1134
× 380
580 × 1254
× 380
580 × 1374
× 380
Net Weight(Kg)
143
168
192
216
242
Enclosure Protection Rating
IP55
Operating Temperature
Range2(℃)
-10~+50
Certification
UL1642 / CE / RCM / TUV(IEC62619) /
Sicherheitsleitfaden Li-lonen-Hausspeicher / UN38.3
Scalability
To be announced
Compatible Inverters3
SMA / Kostal and more brands to be announced

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When BYD Battery-Box HV operates in low temperatures, the charge and discharge current is
adjusted automatically. The battery will limit the current when the operating temperature gets
low. Please refer to the table below for current parameters related to operating temperature:
4 Technical Items
5 Product Overview
5.1 Brief Introduction
This product is a high-voltage DC battery system with an operating voltage range between
200~500V. It is utilized in household energy storage applications and works together with a high-
voltage inverter to realize the goal of energy storage for the home. A battery system consist of 5
to 9 individual battery modules connected in serial.
Charge Current at Various Temperatures Ranges
Temperature Range (℃)
Normal Current(A)
-10~0
0.2C
0~12
0.5C
12~50
0.8C
Note: It will take 2 minutes for the charge current to adjust
Discharge Current at Various Temperatures Ranges
Temperature Range (℃)
Normal Current(A)
-10~40
1C
40~50
0.5C
No.
Terms
Comment
1
Discharge
Battery output power for load
2
Charge
To put electricity into battery by charger
3
Full charged
Battery had been full charged, SOC is 100%.
4
Idle
Ready for charging and discharging
5
Shutdown mode
Power off
6
SOC
State of Charge
7
SW
Software
8
HW
Hardware
9
Battery voltage
The voltage between B+/B-
10
Pack voltage
The voltage between P+/P-
11
Cell voltage
Single cell voltage
12
Failure
Battery or BMS is broken, need to be replaced
13
Alarm
Indicate that the battery is in abnormal status
14
Protect
Battery stops charging or discharging and is recoverable.
15
Over discharged
Battery is lack of electricity, and needs to be recharged in time.

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Product overview
Major Components:
5.2 BYD Battery-Box HV Configuration Table
5.3 BCU Introduction
The component responsible for battery management and control. The BCU is connected to the
battery modules below and to the inverter or BMU above.
No.
Name
Configuration
Energy
(kWh)
Voltage(V)
BCU
B-Plus H 1.28
Base
1
Battery-Box H 6.4
1
5
1
6.4
200~282
2
Battery-Box H 7.7
1
6
1
7.68
240~338
3
Battery-Box H 9.0
1
7
1
8.96
280~394
4
Battery-Box H 10.2
1
8
1
10.24
320~451
5
Battery-Box H 11.5
1
9
1
11.52
360~500
B-Plus H 1.28
BCU
Base

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5.3.1 BCU Interface Introduction (Left Side)
5.3.2 BCU Interface Introduction (Right Side)
5.3.3 BCU Functional Interfaces Definition
No.
Interface Name
Description
1
P+
The system positive terminal, connected to the inverter positive
terminal for battery
2
P-
The system negative terminal, connected to the inverter negative
terminal for battery
3
GND
Grounding terminal, connected to the ground
4
WAN
Connected to the Ethernet, to complete the functions of
communication and remote program update
5
COM
Containing RS485, CAN, and enable signals, outputting 13V power
6
System Air Switch
The main switch of system, which can be operated manually and has
the short circuit protection function
Position
Designation
Left side terminals
A
WAN
B
COM
C
G
D
P-
E
P+
Position
Designation
Right side terminals
A
System Air Switch

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6 Cleaning and Maintenance
6.1 Cleaning
It is recommended that the BYD Battery-Box HV system be cleaned periodically. If the enclosure is
dirty, please use a soft，dry brush or a dust collector to remove the dust. Liquids such as solvents,
abrasives or corrosive liquids should not be used to clean the enclosure.
6.2 Maintenance
6.2.1 Recharge Requirements During Normal Storage
Batteries should be stored in an environment with a temperature range between -10℃～+45℃,
and maintained regularly according to the following table with 0.5C (12.5A) current until 40% SOC
after a long time of storage.
6.2.2 Recharge Requirements When Over Discharged
Please recharge the over discharged batteries in a timeframe that is in accordance to the following
table, otherwise the over discharged battery modules will be damaged.
Recharge conditions when in storage
Storage Environment
Temperature
Relative Humidity of
Storage Environment
Storage Time
SOC
Below -10℃
/
prohibit
/
-10~25℃
5%~70%
≤12 months
30%≤SOC≤60%
25~35℃
5%~70%
≤6 months
30%≤SOC≤60%
35~45℃
5%~70%
≤3 months
30%≤SOC≤60%
Above 45℃
/
prohibit
/
Recharge conditions when battery is over discharged
Storage Environment Temperature
Storage Time
-10~25℃
≤ 15 days
25~45℃
≤ 7 days

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7 Compatible Inverter List
To make sure that the system can operate normally, please choose BYD compatible inverters and
size the battery quantity accordingly. For more details, please refer to the Compatible Inverter List.
8 Common Issues and Solutions
8.1 Common Issues of BYD Battery-Box HV and Solutions
If the BYD Battery-Box HV system has been connected to the router, user can monitor the running
status of battery, warning, and alarm information via the built-in webpage, the log-in procedure
is as following:
Enter the correct IP address in the browser (IE, Google Chrome or Mozilla Firebox browsers are
recommended), and then enter the account and password to log in (the login ID: user; password:
user). User can change the password by themselves after the first log-in.
Log in the built-in webpage by selecting one of the following ways:
 LAN
Connect the BYD Battery-Box HV system and the computer in the same LAN through router,
get the system’s IP address on the router web page, then enter the system’s IP address or
its host name: BYD + product serial number without the first three numbers (e.g. product serial
number is BYD100171708-00000, then host name will be BYD171708-00000) in the browser,
and enter the account and password to log in.
 Direct Connection With Network Cable
Directly connect the computer to the network interface of BYD Battery-Box HV system with
the network cable, reset the computer’s IP address (e.g. 192.168.6.8) to make the computer
and the BYD Battery-Box HV system on the same network segment, enter the IP: 192.168.6.1
in the browser, and enter the account and password to log in.
8.2 Common Issues Displayed On Inverter and Solutions
User can also monitor the running status of battery, warning, and alarm information from the App
or LED display of inverter, detailed information please refer to the Compatible Inverter List.
8.3 Emergency
Please cut off the power supply and turn off the battery in an emergency.
Issue Description
Possible Causes
Solution
Air Switch Off
Battery low voltage protection
Battery high voltage protection
Battery high temperature protection
Other hardware failures.
Please contact our after sales service
provider immediately.

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9 Warranty
BYD provides warranty when the product is installed and used according to the instructions
contain in the User Manual, Installation Manual, and Warranty Letter.
1. Please contact our local service provider for technical support & after sales service.
2. Please download the Warranty Letter via the following website:
Australian customer: www.alpspower.com.au
European customer: www.eft-systems.de

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Contact Information
China
BYD LITHIUM BATTERY Co., LTD
E-Mail: [e-mail]
Tel: [phone]
Fax: [phone]
Address: No.1 Baoping Road, Baolong Industrial Town, Longgang Shenzhen,
518116, China
Local Service Provider：
Australia
Alps Power Pty Ltd
Address: 14/47-51 Lorraine St Peakhurst NSW 2114
Customer Service Mailbox: [e-mail]
Telephone: [phone]
Website: www.alpspower.com.au
Europe
EFT-Systems GmbH
Address: Buchenstr.37 97816 Lohr a. Main
Customer Service Mailbox: [e-mail]
Telephone: [phone](DE)
[phone] (ES)
[phone] (IT)
[phone] (UK)
Website: www.eft-systems.de
Copyright © BYD Lithium Battery Company Limited. All rights reserved.