BYD Battery-Box Pro series User manual

BYD Battery-Box Pro User Manual
Battery-Box Pro 13.8
Version 6.0

BYD Battery-Box Pro 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 Battery-Box definition.......................................................................................................................................................... 2
1.5 Identifying the Product ....................................................................................................................................................... 2
2 Safety.................................................................................................................................................................3
3 Technical Data ..................................................................................................................................................4
4 Technical Terms ...............................................................................................................................................5
5 Product Overview ............................................................................................................................................6
5.1 Battery-Box System brief introduction .......................................................................................................................... 6
5.2 Battery-Box configuration table....................................................................................................................................... 7
5.3 General introduction of BMU............................................................................................................................................ 7
5.4 General introduction of Battery-Box 13.8 module .................................................................................................... 8
5.5 General introduction of BMS............................................................................................................................................. 8
5.6 Operating environment....................................................................................................................................................... 8
6 Cleaning and Maintenance .............................................................................................................................9
6.1 Cleaning .................................................................................................................................................................................... 9
6.2 Maintenance............................................................................................................................................................................ 9
6.2.1 Recharge requirement for normal storage........................................................................................................... 9
6.2.2 Recharge requirement when battery is over discharged ................................................................................ 9
7 Compatible Inverter List ...............................................................................................................................10
8 Common Issues and Solutions.....................................................................................................................10
8.1 Alarm indicated on the BMU and solution.................................................................................................................10
8.2 Alarm display on BMS and solution..............................................................................................................................10
8.3 Common issues displayed on inverter and solution...............................................................................................12
8.4 Emergency .............................................................................................................................................................................12
9 Warranty .........................................................................................................................................................12
Contact Information ..........................................................................................................................................

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1 General Information
1.1 Validity
This user manual applies to the Battery-Box Pro 13.8.
1.2 Application
This user manual introduces the Battery-Box product information, using guidance, safety, common
issues and actions.
The Battery-Box Pro 13.8 is an energy storage unit that can be used in ON-grid system or Off-grid
system.
The product is suitable for indoor use only.
1.3 Intended use
The Battery-Box is not suitable for supplying life-sustaining medical devices. A power outage must not lead
to personal injury.
Use this product only in accordance with the information provided in the enclosed documentation and with
the locally applicable standards and directives. Any other application may cause personal injury or property
damage.
The illustrations in this manual meant only to help explain system configuration concepts, includes using
guidance, safety caution and normal failure and 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 must be attached to the product.
Battery-Box Pro 13.8 must work with compatible inverters which are listed in the “Compatible
inverter list” in this manual.
1.4 Battery-Box definition
BYD Battery-Box products Battery-Box Pro 13.8 is defined as below:
Battery-Box Pro 13.8 : the name of Battery Box system with the usable energy of 13.8kWh.
1.5 Identifying the Product
The Type Label describes the product identification, which is attached on the product.
The Type Label includes following information:
Product Name:
Product Type:
Nominal Capacity:

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Nominal Voltage:
Max Charging & Discharging Current:
Operating Temperature Range:
2 Safety
This section contains safety information that must be observed at all times when working on or with batteries
by professionals. 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 install or use the battery near any heat sources.
 Do not install or use the battery in wet locations, such as bathroom.
 Do not expose them 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.
 Do not dispose of batteries in a fire, which may explode.
Operation
 Do not touch the battery pack with wet hands.
 Do not crush, drop or puncture the battery.
 Always dispose of the batteries according to local safety regulations.
 Store and recharge battery in a manner in accordance with this user manual.
 Ensure reliable grounding.
 The charging circuit of inverter shall be DVC A, and the output circuit needs to be isolated
from high voltage bus.
 The cabinet and battery modules shall be transported separately to reduce the risk of
damage caused by drop, vibration, topple, etc.
 Do not short circuit the terminals, remove all metal objects including watches and rings that
could product a short circuit before installation, replacement and maintenance.
 The battery shall be repaired, replaced or maintained by skilled personal recognized. (Skilled
personnel recognized is a trained and qualified electrician or installer defined in installation
guidance).
 Do not reverse the polarity.
 Do not stack up batteries without protective package, when store or handle batteries.

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 Do not open, mutilate or disassemble the battery, the released electrolyte, which may be
toxic, is harmful to the skin and eyes.
 Disconnect the charging source prior to connecting or disconnecting battery terminals, for
instance, disconnect battery from power/load and then power off battery before installation
and maintenance.
 Packaged batteries should not be stacked more than specified number stipulated on the
package.
 Do not lay tools or metal parts on top of batteries.
 Do not use damaged, failed or deformed batteries, which may reach temperatures that
exceed the burn thresholds for touchable surfaces. Continued operation of damaged
battery may result in dangerous situation and cause severe injury due to electrical shock.
3 Technical Data
Model
Battery-Box Pro 13.8
Battery type
Lithium Ion Battery
Battery module [1] [kWh]
13.8
Usable Energy [1] [kWh]
13.8
Max Output Power [kW]
12.8
Peak Output Power [kW]
13.3, 60s
Round-Trip Efficiency
≥95.3% ( Under test condition [1] )
Nominal Voltage [Vd.c]
51.2
Operating Voltage Range [Vd.c]
43.2~56.4
Communication
RS485 / CAN
Dimension [ W ×H ×D, mm ]
650 ×800 ×550
Net Weight [kg]
181
Enclosure Protection Rating
IP20
Ambient Temperature Range [2] [℃]
-10 ~ +50
Certification & Safety Standard
TUV(IEC62619) / CE / RCM / UN38.3
Scalability
Max. 32 systems in parallel
Compatible Inverters
Please refer to the Battery-Box Compatible inverter list
[1].Test conditions: 100% DOD, 0.2C charge & discharge @+25℃
[2]. -10℃~12℃will be derating
* System Usable Energy may be variant with different inverter brands
Note: The maximum operating voltage of the rechargeable lithium-ion battery system is less than 60Vd.c
When Battery-Box works in different temperatures, the current of charge and discharge will be
adjusted automatically, battery will permit lower current when operating temperature gets lower.
Please refer to below table for the detail parameters setting:

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Parameter setting of charging current in various temperatures
Operating temp. (℃)
Normal current(Ad.c)
-10~2
15*N
2~12
42.5*N
12~50
175*N
Remark:
1. Effective time is 2mins when changing from one temperature range to another.
2. N= battery quantity
Parameter setting of discharging current in various temperatures
Operating temp. (℃)
Normal current(Ad.c)
-10~50
125~250*N
Remark: N= battery quantity
4 Technical Terms
No.
Term
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
Battery is on status of neither charge nor discharge and has not been fully
charged.
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 are broken, and unit needs to be replaced
13
Alarm
Battery will stop charging or discharging immediately
14
Protect
Battery stops charging or discharging (e.g. cell is overvoltage). Operation can
resume at a later stage.
15
Over discharged
Battery module or batteries overvoltage, need to be recharged timely

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5 Product Overview
5.1 Battery-Box System brief introduction
The Battery-Box energy storage system combined with high-performance BYD lithium battery,
consists of cabinet, battery, BMS and BMU. Each set of the storage system includes 2 battery
modules connected in series, and up to 32 Battery-Box 13.8 energy storage system can be
connected in parallel.
Internal drawing
External drawing

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Structure dimension drawing
5.2 Battery-Box configuration table
No.
Component
Name
Description
1
Cabinet
Battery Box
Cabinet
The cabinet is used to accommodate these 2 modules and provide DC
input and output.
2
Battery
Battery module
Battery module with 51.2V 270Ah, BYD’s P/N is: GBSSB
3
BMU
BMU
Battery management unit. Provides communication with external
equipment.
4
BMS
BMS
Battery module management unit and communicate with BMU
5.3 General introduction of BMU
BMU is the battery management unit installed in the cabinet; its function is to manage the
battery’s charging and discharging, collect information from the battery and report to the
inverter.
Main functions:
 CAN / RS485 communication with inverter
 RS485 communicate with battery/BMS
 Other Communication interface for maintenance
 Charge and discharge management

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5.4 General introduction of Battery-Box 13.8 module
Battery-Box Pro 13.8 includes two battery modules, one battery modules is 25.6V/270Ah, and the
batteries are in series connection.
Module overview
5.5 General introduction of BMS
BMS, the battery management system, manages battery’s charging and discharging, and
communicates with BMU. It reports warning and alarm information to external equipment to make
sure that the system run normally.
 
Display and communication interface
No.
Interface
Mark
Function

SOC LED
SOC
Indicate current SOC of battery

RUN LED
RUN
Indicate that the Battery is in running status

ERR LED
ERR ADDR
Indicate error status

ALM LED
Alarm
Indicate alarm status

RJ45 terminal
RS485
Communication ports

Address
ADDR
Address needs to be set, if they are connected in parallel.

ON/OFF
ON/OFF
Power on/power off manually

Test terminal
B- B+
Measure battery voltage when testing.
5.6 Operating environment
Operating environment parameters
No.
Item
Min.
Typical
Max.
Unit
Remark
1
Discharging
temperature
-10
25
50
℃
8
7

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2
Charging
temperature
-10
25
50
℃
3
Relative humidity
5
95
%
4
Absolute humidity
0.26
25
g/m3
5
Elevation
-
2000
-
m
6
Enclosure
IP20
7
Pollution
PD2
8
Voltage category
II
9
Recommended external breaker
300A
6 Cleaning and Maintenance
6.1 Cleaning
The Battery -Box system is recommended to be cleaned periodically. If the enclosure is dirty, please
use a soft，dry brush or a soot blower to remove the dust. Liquids such as solvents, abrasives or
corrosive liquids are not allowed to clean the enclosure.
6.2 Maintenance
6.2.1 Recharge requirement for normal storage
Batteries should be stored in position with the temperature range of -20 ℃ ～ +45 ℃, and
maintained regularly according to the following table with 0.5C (125A) current for 1 hour after a
long time of storage.
Recharge conditions when in storage
Storage environment
temperature
Relative humidity of
storage environment
Storage time
SOC
Below -20℃
/
Avoid
/
-20~25℃
5%~70%
≤12 months
30%≤SOC≤60%
25~35℃
5%~70%
≤6months
30%≤SOC≤60%
35~45℃
5%~70%
≤3months
30%≤SOC≤60%
Above 45℃
/
Avoid
/
6.2.2 Recharge requirement when battery is over discharged
Please recharge the over discharged batteries in time as per the following table, otherwise the
over discharged ones will be damaged.
Recharge condition when battery is over discharged
Storage environment temperature
Storage time
-20~25℃
≤15 days
25~45℃
≤7 days
Please power off the system before cleaning the Battery-Box Pro 13.8

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7 Compatible Inverter List
To make sure that the system can be operated normally, please use BYD compatible inverters and
select battery quantity correctly, according to the “Battery-Box configuration list with different
inverter” in Appendix 1 in this user manual.
8 Common Issues and Solutions
8.1 Alarm indicated on the BMU and solution
LED of the BMU
Possible cause
Solution
Flash 1 time
Inverter and BMU
communication failure
Step1. Check whether the CAN communication
cable has been connected correctly and tightly；
Step2. If the connection is incorrect, please
reconnect the cable correctly; if the connection is
correct and reliable, then replace the BMU；
Flash 2 times
Battery not found
Check the connection between BMU and first
battery.
Flash 3 times
One or some batteries are
disconnected
1. Check RS485 cable and battery address
2. If the connection and the address are correct,
please contact the after service provider
Flash 4 times
Any battery failure
Check battery led status. If the red led is on and
buzzer alarms, please contact the after service
provider to replace the battery.
8.2 Alarm display on BMS and solution
Alarm indicated by flashing LED
Info Battery displayed
Flash
Possible cause
Solution
Only yellow led is ON
0.5Hz
Battery was powered off
abnormally;
Press ON/OFF button for 2-3
seconds to restart the battery, If
the battery cannot be recovered,
contact the after service
provider immediately;
Flow led flashes and
alternates with capacity
led
10s per
cycle
Communication connection
timeout
Step1.Check the communication
wire/cable
Step2.Check battery address
NO.1/3 led and No.2/4 led
flashing alternately
/
Update status
If the firmware is not updated,
then reset the battery.
Alarm indicated by flashing yellow Led

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Fault phenomenon
Flashing
Times
Possible causes
Solution
1.Yellow led (Alarm) is
always on
2 Press on/off button for
1S and release, then hear
short buzzer
3. The green Led (RUN) is
always on, and yellow led
(ALM) flash at different
times, which indicates that
battery is in alarm status.
1time
Under voltage (BAT or CELL)
Contact the after service provider
2times
Over charge
Contact the after service provider
3times
Low temperature charge
over-current
Contact the after service provider
4times
Charge short circuit
Contact the after service provider
5times
Discharge short circuit
Contact the after service provider
6times
Parallel short circuit
Contact the after service provider
7times
Discharge over-current
protection
Contact the after service provider
8times
High temperature
protection
Contact the after service provider
9times
Low temperature protection
Contact the after service provider
10times
PACK over voltage
protection
Contact the after service provider
Alarm status indicated by flashing red led
Fault phenomenon
Times
Possible cause
Solution
1.Red led (Err) is always on
2. Press the on/off button
press the for1S and
released, then buzzer
sounds shortly
1time
Voltage sensor failure
Replace the battery
3. Green led (RUN) is
always on, and red led
(ERR) is flashing, which
shows the alarm status.
2times
Temperature sensor failure
Replace the battery
3times
Charging circuit failure
Replace the battery
4times
Discharge circuit failure
Replace the battery
5times
Batteries failure
Replace the battery
6times
Communication failure
Replace the battery
Failures indicated by buzzer
Fault phenomenon
Times
Possible cause
Solution
The buzzer sounds with
different times at a 15
seconds interval.
4times
Reverse 、short circuit
1.Power off;
2.Inspect short/reverse
connection of cable between
P+&P-;
3.If short/reverse connection is
confirmed, please reconnect
cable correctly;
4.Restart battery;
3times
Batteries failure
Replace the battery
2times
Voltage sensor failure、
Temperature sensor failure
Replace the battery

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1time
Charging/Discharge circuit
failure
Replace the battery
8.3 Common issues displayed on inverter and solution
User also can check the battery’s running, warning and alarm information from App or LED display of
inverter, detail information please refer to Appendix 2 in this user manual.
8.4 Emergency
Please cut off the power supply and turn off the battery in emergency.
9 Warranty
BYD provides warranty when the product is installed and used according to the description of user manual
/ installation manual / warranty letter.
1. Please contact our local service provider for technical support & after service.
2. Please download the Warranty Letter via following website:
Australia customer: www.alpspower.com.au
European customer: www.eft-systems.de

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 contacts：
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.