BYD Battery-Box Premium LVL 15.4 User manual

BATTERY
BOX
BYD BATTERY BOX PREMIUM LVL15.4 USER
MANUAL V1.0

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BATTERY-BOX PREMIUM LVL
CONTENT
1. Information On This Document..............................................................................3
1.1 Validity .........................................................................................................3
1.2 Target Group.................................................................................................3
1.3 Content and Structure of This Document.....................................................3
1.4 Levels of Warning Messages........................................................................3
1.5 Minimum Configuration List .......................................................................4
1.6 BMU Parameters..........................................................................................4
2. Safety ......................................................................................................................4
2.1 Intended Use.................................................................................................4
2.2 Important Safety Instructions.......................................................................5
3. Scope of Delivery ...................................................................................................8
4. Product Overview .................................................................................................10
4.1 Product Description....................................................................................10
4.2 Technical Parameters..................................................................................10
4.3 System structure .........................................................................................12
4.4 Symbols on The Product ............................................................................13
4.5 LED Signals ...............................................................................................14
5. Mounting...............................................................................................................16
5.1 Requirements for Mounting .......................................................................16
5.1.1 Requirements for Mounting Location..............................................16
5.1.2 Permitted and Prohibited Mounting Positions.................................16
5.2 Mounting The Product................................................................................17
5.2.1 Needed Tools....................................................................................18
5.2.2 Single System Mounting..................................................................19
5.2.3 Single Stack Mounting.....................................................................20
5.2.4 Multiple Stacks Mounting (Max. 3 in parallel) ...............................22
6. Electrical Connection............................................................................................23
6.1 Single System Connection..........................................................................24
6.2 Single Stack Connection ............................................................................29
6.3 Multiple Stacks Connection (Max. 3 in Parallel).......................................30
6.4 Close the front cover ..................................................................................30
7. Commissioning.....................................................................................................30
7.1 Prerequisites ...............................................................................................31

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7.2 Start the system ..........................................................................................31
7.3 Stop the system...........................................................................................33
8. Trouble Shouting...................................................................................................33
8.1 Overview ....................................................................................................33
8.2 Events detection after switching on the system..........................................35
8.3 Fail to switch on the system .......................................................................36
9. Maintenance and Clean.........................................................................................37
10. Disposal of Products and Batteries................................................................39
11. Declaration of Conformity.............................................................................40
12. Contact Information.......................................................................................41

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1. Information On This Document
1.1 Validity
This document is valid for the Battery-Box Premium LVL 15.4 from firmware version
1.5.
1.2 Target Group
The instructions in this document may only be performed by qualified persons who
must have the following skills:
•Knowledge of how batteries work and are operated
•Knowledge of how an inverter works and is operated
•Training in dealing with the hazards associated with the installation and operation
of electrical equipment and batteries
•Training in the installation and commissioning of electrical equipment
•Knowledge of, and adherence to the locally applicable connection requirements,
standards and directives
•Knowledge of, and adherence to this document and the associated system
documentation, including all safety instructions
1.3 Content and Structure of This Document
This document describes the mounting, installation, commissioning, configuration,
operation, troubleshooting and decommissioning of the product as well as the
operation of the system user interface.
You can download the current Limited Warranty Letter from the Internet at BYD
website https://www.bydbatterybox.com, or BYD service partner`s website
https://www.eft-systems.de and https://www.alpspower.com.au.
You can also call up the E-Manual via the user interface of the system. Illustrations in
this document are reduced to the essential information and may deviate from the real
product.
1.4 Levels of Warning Messages
The following levels of warning messages may occur when handling the product.
DANGER
Indicates a hazardous situation which, if not avoided, will result in death or serious injury
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WARNING
Indicates a hazardous situation which, if not avoided, could result in death or serious injury
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or moderate
injury.
NOTICE
Indicates a situation which, if not avoided, can result in property damage.
1.5 Minimum Configuration List
Please see attached document.
1.6 BMU Parameters
Please see attached document.
2. Safety
2.1 Intended Use
BYD Battery-Box Premium LVL 15.4 is for residential and small business use, and
works with photovoltaic system. It is a 48V Li-ion battery storage system, with
control module on itself. It could be operated in either off-grid or on-grid mode with
compatible inverters.
The system could be connected with internet through network cable for
maintenance and software update.
The system must only be used as stationary equipment.
The system is suitable for indoor use only.
The system must only be operated in connection with a compatible inverter. The
list of these inverters could be read at https://www.eft-systems.de.
The system is not suitable for supplying life-sustaining medical devices. Please
ensure that no personal injury would lead due to the power outage of the system.
!
!

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Alterations to the BYD system, e.g., changes or modifications are not allowed
unless the written permission of BYD Europe B.V. is achieved.
The enclosed document is an integral part of this system. Keep the documentation
in a convenient, dry place for future reference and observe all instructions
contained therein.
The type label should be always attached to the system.
Any use of the product other than that described in the Intended Use section does
not qualify as the intended use.
This document does not replace and is not intended to replace any local, state,
provincial, federal or national laws, regulations or codes applicable to the installation,
electrical safety and use of the product. BYD Europe B.V assumes no responsibility
for the compliance or non-compliance with such laws or codes in connection with
the installation of the product.
The type label must remain permanently attached to the product
2.2 Important Safety Instructions
The system has been designed and tested in accordance with international safety
requirements. However, in order to prevent personal injury and property damage and
ensure long-term operation of the system, please do read this section carefully and
observe all safety information at all times.
DANGER
Battery Module Leakage
If the battery modules leaks electrolyte, contacting with the leaking liquid or gas should be
avoided. Electrolyte is corrosive and the contact may cause skin irritation and chemical
burns. If one is exposed to the leaked substance, do these actions:
•Inhalation: Evacuate the contaminated area, and seek for medical help immediately.
•Eye contact: Rinse eyes with flowing water for 15 minutes, and seek for medical help
immediately.
•Skin contact: Wash the affected area thoroughly with soap and water, and seek for
medical help immediately.
•Ingestion: Induce vomiting, and seek for medical help immediately
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WARNING
Firefighting Measures
•The battery modules may catch fire when it is put into fire. In case of a fire, please
make sure that an ABC or carbon dioxide extinguisher is nearby. Water cannot be used
to extinguish the fire.
•Full protective clothing and self-contained breathing apparatus are required for the
firefighters to extinguish the fire.
CAUTION
Battery Modules Handling and Storage Guide
•The battery modules and its components should be protected from damage when
transporting and handling.
•Weight of system may cause injury risk, please take the weight of the system into
account while the system is transported and lifted carefully.
•Do not impact, pull, drag or step on the battery modules.
•Do not insert unrelated objects into any part of the battery modules.
•Do not throw the battery module into a fire.
•Do not soak the battery modules in water or seawater.
•Do not expose to strong oxidizers.
•Do not short circuit the battery modules.
•The battery modules cannot be stored in high temperature (more than 60 ℃).
•The battery modules cannot be stored directly under the sun.
•The battery modules cannot be stored in high humidity environment.
•Use the battery modules only as directed.
•Do not use the battery modules if it is defective, or appears cracked, broken or
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otherwise damaged, or fails to operate.
•Do not attempt to open, disassemble, repair, tamper with, or modify the battery
modules. The battery modules are not user serviceable.
•Do not use cleaning solvents to clean the battery modules.
DANGER
Surge protection
Overvoltages (e. g. in the event of a flash of lightning) can be further conducted into the
building and to other connected devices in the same network via the network cables or
other data cables if there is no surge protection. Touching live parts and cables results in
death or lethal injuries due to electric shock.
Ensure that the system is integrated into the existing surge protection
Safety information of the inverter manufacturer
Please read and observe all safety information of the inverter manufacturer.
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3. Scope of Delivery
Position
Designation
B1
Battery module 1
B2
Battery module 2
C
Power cable L2
D
Power cable L3
E
Screw M6×12 for fixing grounding conductor and
connecting communication cable with “+”and “-”
F
Screw 10×20 for connecting power cable with “+”and “-”
G
Screw M5×14 for fixing the connector
H
Network cable
I
Gasket (small size)

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J
Connector for connecting and fixing B1 and B2
k
Alignment pins
L
Bolts for fixing B2`s top cover
M
Communication cable for connecting the system and BMU
N
Gasket (big size)
O
Quick Start Guide, Minimum Configuration List

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4. Product Overview
4.1 Product Description
The BYD Battery-Box Premium LVL 15.4 is a lithium iron phosphate (LFP) battery
for use with an external inverter.
With its control and communication port (BMU), the Battery-Box Premium LVL 15.4
is capable of scaling to meet the different project requirements. Start with Battery-Box
Premium LVL15.4 (15.36 kWh) and extend anytime to 983 kWh using parallel
interconnection of up to 64 batteries. The functions of BYD Battery-Box Premium
LVL 15.4 including:
Scalable from 15.4 to 983 kWh
On grid / Off grid
Compatible with Inverters, and able to storage power from PVs
Compatible with Backup function Inverters
Compatible with 1 and 3 Phase Inverters, for specific inverter list, please see
attached Minimum Configuration List.
Cobalt Free Lithium Iron Phosphate (LFP) Battery: Maximum Safety, Life Cycle,
and Power Capable of High-Powered Back-up and Off-Grid Function
Space Saving via the Ability to Stack 2 Premium Plus Batteries
Add Additional Batteries in Parallel to Expand System
4.2 Technical Parameters
Number of Modules
2 modules
Usable Energy [1]
15.36 kWh
Max Cont. Output Current [2]
250 A
Peak Output [2]
375 A, 10s
Dimensions (H/W/D)
500 x 575 x 650 mm
Weight
164 kg
Nominal Voltage
51.2 V

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Operating Voltage
40-59 V
Operating Temperature
-10 °C to +50°C
Communication
CAN/RS485
Enclosure Protection Rating
IP20
Round-trip Efficiency
≥95%
Scalability
Max. 64 in Parallel (983 kWh)
Certification
IEC62619 / IEC62040 / CE / CEC / UN38.3
Application
ON Grid / ON Grid + Backup / OFF Grid
Warranty [3]
10 years
Compatible Inverters
Refer to BYD Battery-Box Premium Inverter
Compatible List and Minimum Configuration List
[1] DC Usable Energy, Test conditions: 100% DOD, 0.2C charge & discharge at + 25 °C. System
Usable Energy may vary with different inverter brands
[2] Charge/discharge derating will occur between -10 °C and +5 °C
[3] Conditions apply. Refer to BYD Battery-Box Premium Limited Warranty Letter.

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4.3 System structure
Position
Designation
1
Terminal
2
Power cable port
3
BIC
4
SPI port
5
CON port
6
switch
7
B2 module
8
B1 module
9
Base
2
1
6
7
8
9
3
4 5

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4.4 Symbols on The Product
Symbol
Explanation
Observe the documents
Observe all documents supplied with the system.
Grounding conductor
This symbol indicates the position for connecting a grounding conductor.
WEEE designation
Do not dispose of the system together with the household waste but in
accordance with the disposal regulations for electronic waste applicable at
the installation site.
CE marking
The system complies with the requirements of the applicable EU directives.
Place it straight up, without inclination or upside down.
Handle with care
Keep it dry
Keep the battery modules away from open flame or ignition sources.
Beware of electrical voltage.
Beware of a danger zone
This symbol indicates that the system must be additionally grounded if
additional grounding or equipotential bonding is required at the installation
site.
Keep the battery modules away from children.

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4.5 LED Signals
LED signal
Explanation
White and blue LED are alternately
flashing. 0.5s white then 0.5s blue
System is ON
White LED is always glowing
No charging and discharging
Full charging
White LED is flashing slowly
2s on and 2s off
Charging
White LED is flashing quickly
1s on and 1s off
Discharging
White LED is flashing quickly(1s on and 1s
off), blue LED is glowing
SOC ≤15%
BMS Failure Detection (read the switch LED color on the battery)
Failure starts as the white LED flashing for one time, then count blue LED flashing times
Define flash for one time: 1s on and 1s off.
Blue LED is flashing for 1 time.
Short circuit or disconnection
Blue LED is flashing for 2 times.
MOS failure
Blue LED is flashing for 3 times.
BIC or communication failure
Beware of hot surface
The system can get hot during operation.
Do not short circuit.

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Blue LED is flashing for 4 times.
Battery temperature sensor failure
Blue LED is flashing for 5 times.
Voltage sensor failure
Blue LED is flashing for 6 times.
Current sensor failure
Blue LED is flashing for 7 times.
Battery cell failure
Blue LED is flashing for 8 times
Precharge failure
Blue LED is flashing for 9 times
BIC balance failure
Blue LED is flashing for 10 times
PCB temperature sensor failure
Blue LED is flashing for 11 times
BMS and BMU communication failure
BMU Failure Detection (read the switch color on BMU)
Failure starts as the white LED flashing for one time, then count blue LED flashing times
Define flash for one time: 1s on and 1s off.
Blue LED is flashing for 1 time
System parameters load failure
Blue LED is flashing for 2 times
Address register failure
Blue LED is flashing for 3 times
Precharge failure
Blue LED is flashing for 4times
BMS failure
Blue LED is flashing for 5 times
Communication with BMS failure
Blue LED is flashing for 5 times
Communication with inverter failure

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5. Mounting
5.1 Requirements for Mounting
5.1.1 Requirements for Mounting Location
A solid support surface must be available (e.g., concrete or masonry).
The mounting location must be inaccessible to children
The mounting location must be suitable for the weight and dimensions of the
product (See "Technical Data").
To ensure optimum operation, the ambient temperature should be between-10 °C
to +50°C
Transport at end-customer side：The individual components of the Battery box
premium series can weigh up to 88 kg and therefore should not be transported by
a single person. It is recommended that the system is installed by at least two
people.
5.1.2 Permitted and Prohibited Mounting Positions

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The product may only be mounted in a permitted position. This will ensure that
no moisture can penetrate the product.
The product should be mounted such that the LED signals can be read off without
difficulty
The system mounting requires a flat and level surface
5.2 Mounting The Product
NOTICE
The instructions in this section may only be performed by qualified persons who must have
the following skills:
•Knowledge of how batteries work and are operated
•Knowledge of how an inverter works and is operated
•Training in dealing with the hazards associated with the installation and operation of
electrical equipment and batteries
•Training in the installation and commissioning of electrical equipment
•Knowledge of, and adherence to the locally applicable connection requirements,
standards and directives
•Knowledge of, and adherence to this document and the associated system
documentation, including all safety instructions
WARNING
Risk of injury due to weight of product
•Injuries may result if the product is lifted incorrectly or dropped while being
transported or when attaching it to or removing it from the wall mounting bracket.
• Transport and lift the product carefully. Take the weight of the product into account.
• Wear suitable personal protective equipment for all work on the product.
!

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5.2.1 Needed Tools
Name
Remarks
Reference picture
Electric Screwdriver
For use in conjunction with screwdriver tips
Diagonal Pliers
For removal of cable hole protector
Torque Wrench
For confirmation of torques
Straight Screwdriver
6.5 mm flat head, PD2 cross slot，8mm hexagon，
6.5mm cross slot，10mm hexagon，14mm hexagon
Ground Conductor
SC16-6
Power Cable
7mm²(maximum 5 m length)
Network Cable
Shielded CAT5 (maximum 10 m length)
Wrench
Main loop cable size
70mm2 (AWG 2/0), external diameter ＜18mm
Main loop cable terminal
size
KST TLK70-10 or a similar one

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5.2.2 Single System Mounting
Unpacking the system
•Unpacking the system, check the number and quality of delivered accessories
(See scope of delivery);
•Pile B2 above B1, make sure the two alignment
pins are in the right place. Patience and slow
motion are required for this step;
•Maximum 2 modules are allowed to be piled
together, and maximum 2 system can be piled
together
•Screw the 4 screws on top cover of B2 module
Remove front covers
•Remove the front cover of B2 and B1;
Fix modules
•Use the connector to fix B1 and B2
with screw M5×14, two connectors
for two sides.
Master Module
(B2)
Slave
Module(B1)
8mm
4.5Nm
IN OUT
COM
G
J