Dyness B4850 User manual

User Manual
B4850 ESS Unit

B4850 ESS Unit User Manual
I
Content
STATEMENT OF LAW ..................................................................................................................................... 1
SAFETY PRECAUTIONS................................................................................................................................... 2
PREFACE.......................................................................................................................................................... 3
1 INTRODUCTION.......................................................................................................................................... 4
1.1 BRIEF INTRODUCTION.............................................................................................................................................4
1.2 PRODUCT PROPERTIES............................................................................................................................................4
1.3 PRODUCT IDENTITY DEFINITION ..............................................................................................................................4
2 PRODUCT SPECIFICATION ......................................................................................................................... 6
2.1 SIZE AND WEIGHT...................................................................................................................................................6
2.2 PERFORMANCE PARAMETER...................................................................................................................................6
2.3 INTERFACE DEFINITION ...........................................................................................................................................6
2.3.1 DIP switch definition and description ...................................................................................................7
2.4 BATTERY MANAGEMENT SYSTEM(BMS)............................................................................................................ 10
2.4.1 Voltage Protection ................................................................................................................................ 10
2.4.2 Current Protection ................................................................................................................................. 10
2.4.3 Temperature Protection ...................................................................................................................... 11
2.4.4 Other Protection .................................................................................................................................... 11
3 INSTALLATION AND CONFIGURATION .................................................................................................. 11
3.1 READY FOR INSTALLATION ................................................................................................................................... 11
3.1.1 Environmental requirements .............................................................................................................. 12
3.1.2 Tools and data ....................................................................................................................................... 12
3.1.3 Technical preparation .......................................................................................................................... 12
3.1.4 Unpacking inspection ........................................................................................................................... 13
3.1.5 Engineering coordination .................................................................................................................... 14
3.2EQUIPMENT INSTALLATION.................................................................................................................................. 15
3.2.1 Installation preparation ........................................................................................................................ 15
3.2.2 Mechanical installation ......................................................................................................................... 15
3.2.3 Electrical installation ............................................................................................................................ 16
3.2.4 Battery parameter settings on the inverter .................................................................................... 18
3.2.5 Register on the website after installation ....................................................................................... 18
4 USE, MAINTENANCE AND TROUBLESHOOTING ................................................................................... 19
4.1 BATTERY SYSTEM USAGE AND OPERATION INSTRUCTIONS ..................................................................................... 19
4.2ALARM DESCRIPTION AND PROCESSING............................................................................................................... 20
4.3ANALYSIS AND TREATMENT OF COMMON FAULTS ............................................................................................... 21

B4850 ESS Unit User Manual
1
Statement of Law
Copyright of this document belongs to Jiangsu Daqin New Energy Technology Co., Ltd.
No part of this documentation maybe excerpted, reproduced, translated,
annotated or duplicated in any form or by any means without the prior
written autoorization of Jiangsu Daqin New Energy Technology Co., Ltd. All Rights Reserved.
This product complies with the design requirements of environmental protection and personal
safety. The storage, use and disposal of the products shall be carried out in accordance with the
product manual, relevant contract or relevant laws and regulations.
Customer can check the related information on the website of Jiangsu Daqin New Energy
Technology Co., Ltd when the product or technology is updated. Web URL：
http://www.dyness-tech.com.cn
Please note that the product can be modified without prior notification.
Revision History
Revision NO.
Revision Date
Revision Reason
1.0
2019.04.24
First Published
1.1
2019.05.23
1. Add simple bracket installation
instructions
2. Format revision
1.2
2019.06.22
System adds DIP switch
1.3
2019.07.26
Update the cable specification and simple
bracket installation method
1.4
2020.07.15
1.Add battery parameter settings on the
inverter.
2.Add DIP setting for ICC.
3.Add register on the website after
installation.
4.Update the bracket installation
1.5
2020.09.27
1.Add new inverters in DIP switch description
修订历史产品版本

B4850 ESS Unit User Manual
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Safety Precautions
Warning
⚫Please do not put the battery into water or fire, in case of explosion or any other situation that
might endanger your life.
⚫Please connect wires properly while installation, do not reverse connect.
⚫To avoid short circuit, please do not connect positive and negative poles with conductor on
the same device.
⚫Please avoid any form of damage to battery, especially stab, hit, trample or strike.
⚫Please shut off the power completely when removing the device or reconnecting wires during
the daily use or it could cause the danger of electric shock.
⚫Please use dry powder extinguisher to put out the flame when encountering a fire hazard,
liquid extinguisher could result in the risk of explosion.
⚫For your safety, please do not arbitrarily dismantle any component in any circumstances. The
maintenance must be implemented by authorized technical personnel or our company’s
technical support. Device breakdown due to unauthorized operation will not be covered under
warranty.
Caution
⚫Our product have been strictly inspected before shipment. Please contact us if you find any
abnormal phenomena such as device outer case bulging.
⚫The product shall be grounded properly before use In order to ensure your safety.
⚫To assure the proper use please make sure parameters among the relevant device are
compatible and matched.
⚫Please do not mixed-use batteries from different manufacturers, different types and
models, as well as old and new together.
⚫Ambient and storage method could impact the product life span, please comply with the
operation environment instruction to ensure device works in proper condition.
⚫For long-term storage, the battery should be recharged once every 6 months, and the
amount of electric charge shall exceed 80% of the rated capacity.
⚫Please charge the battery in 18 hours after it fully discharged or over-discharging protection
mode is activated.
Formula of theoretical standby time: T=C/I (T is standby time, C is battery capacity, I is total
current of all loads).

B4850 ESS Unit User Manual
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Preface
Manual declaration
B4850 lithium iron phosphate battery energy storage system can be combined in series or
parallel to provide energy storage function for photovoltaic power generation users. Our product
can store extra electricity into battery from photovoltaic power generation system in daytime
and supply stable power to user’s equipment as power backup at nighttime or any time when
needed. It can improve the efficiency of photovoltaic power generation and increase the electric
power efficiency by peak load shifting.
This user manual details the basic structure, parameters, basic procedures and methods of
installation and operation and maintenance of the equipment.

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1 Introduction
1.1 Brief Introduction
B4850 lithium iron phosphate battery system is a standard battery system unit, customers
can choose a certain number of B4850 according to their needs, by connecting parallel to
form a larger capacity battery pack, to meet the user's long-term power supply needs. The
product is especially suitable for energy storage applications with high operating
temperatures, limited installation space, long power backup time and long service life.
1.2 Product Properties
B4850 energy storage product’s anode materials are lithium iron phosphate, battery cells
are managed effectively by BMS with better performance, the system’s features as below:
⚫Comply with European ROHS, Certified SGS, employ non-toxic, non-pollution
environment-friendly battery.
⚫Anode materials are lithium iron phosphate (LiFePO4), safer with longer life span.
⚫Carries battery management system with better performance, possesses protection
function like over-discharge, over-charge, over-current, abnormal temperature.
⚫Self-management on charging and discharging, Single core balancing function.
⚫Intelligent design configures integrated inspection module.
⚫Flexible configurations allow parallel of multi-battery for longer standby time.
⚫Self-ventilation with lower system noise.
⚫Less battery self-discharge, then recharging period can be up to 10 months during the
storage.
⚫No memory effect so that battery can be charged and discharged shallowly.
⚫With wide range of temperature for working environment, -20oC ~ +55 oC, circulation
span and discharging performance are well under high temperature.
⚫Less volume, lighter weight.
1.3 Product identity definition
Figure 1-1 Battery Energy Storage System nameplate

B4850 ESS Unit User Manual
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Battery voltage is higher than safe voltage, direct contact
with electric shock hazard.
Be careful with your actions and be aware of the dangers.
Read the user manual before using.
The scrapped battery cannot be put into the garbage can
and must be professionally recycled.
After the battery life is terminated, the battery can
continue to be used after it recycled by the professional
recycling organization and do not discard it at will.
This battery product meets European directive
requirements.
This battery product passed the TUV certification test.
Dangerous goods warning label on the top of the battery
module

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2 Product Specification
2.1 Size and Weight
Table 2-1 B4850 Device size
Product
Nominal
Voltage
Nominal
Capacity
Dimension
Weight
B4850
DC48V
50Ah
480×360×90mm
≈22kg
2.2 Performance Parameter
Table 2-2 B4850 performance parameter
Item
B4850 Parameter value
Nominal Voltage(V)
48
Work Voltage Range(V)
42~54
Nominal Capacity(Ah)
50
Nominal Energy(kWh)
2.4
Nominal Power(kW)
0.7
Max Power(kW)
2.4
1S Peak Power(kW)
2.64
1S Peak Current(A)
55
Charging Current(A)
25
Discharge Current(A)
25
2.3 Interface Definition
This section elaborates the interface functions of the front interface of the device.
Figure2-1 The sketch of interface.
1
4
3
2
5
6
7
8
10
9
11

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Table 2-3 Interface Definition
Item
Name
Definition
1
Power switch
OFF/ON,
must be in the "ON" state when in use
2
Ground
connection point
Shell ground connection
3
Positive socket
Battery output positive or parallel positive line
4
Negative socket
Battery output negative or parallel negative line
5
SW (battery
wake/sleep
switch)
When the "OFF/ON" switch button is in the ON state, press
and hold this button for 3 seconds to put the battery into the
power-on or sleep state.
6
SOC
The number of green lights on shows the remaining battery
power. See Table 2-3 for details.
7
ALM
Red light flashing when an alarm occurs, red light always on
during protection status. After the condition of trigger
protection is released, it can be automatically closed.
8
RUN
Green light flashing during standby and charging mode.
Green light always on when discharging.
9
CAN/485
Communication cascade port, support CAN/ RS485
communication (factory default CAN communication)
10
DRY CONTACT
/
11
ADD
DIP switch
2.3.1 DIP switch definition and description
Table 2-4 Interface Definition
DIP switch position (host communication protocol and baud rate selection)
#1
#2
#3
#4
spare
Host or slave
Baud rate selection
OFF
OFF:slave
OFF：CAN: 500K,485: 9600
ON:host
ON：CAN: 250K,485: 115200
DIP switch description:
When the batteries are connected in parallel, the host communicates with the slaves through
the CAN interface. The host summarizes the information of the entire battery system and
communicates with the inverter through CAN or 485. The connection mode is divided into the
following two cases:

B4850 ESS Unit User Manual
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1. If the host is the latest B4850 battery with DIP switch:
(1) The communication cable from the host CAN IN to
the inverter comm port should be the correct one.
(2) When the battery works with GOODWE、Solis、
LUX、Sofar、DEYE、VICTRON、IMEON、Infinisolar、
Sungrow、SMA、RENAC、DELIOS、SAJ(CAN Comm) ，
Growatt HVM-ES/WPV(CAN port),before starting the
battery,you need put the host DIP switch "# 3" to the
"ON" position (to the top), then turn on the batteries.
(3) If the battery communicates with the Axpert-
king,Axpert-VMIII,Growatt SPH/SPA(CAN comm)、
GMDE、Saj(485 comm), turn the host DIP switch "#2" to
"ON" position.
(4) If the battery communicates with the Growatt SPF
HVM-P/ES/WPV by RS485 communication, turn the host
DIP switch "#2" and "#3" to "ON".
(5) If the battery module is in communication with the ICC
by 485 communication, turn the host DIP switch "#1" and
"#4" to "ON".
the DIP switch of the slaves need to turn the “#4”to “ON”.
(7) The DIP switch of the slaves no need to be changed.
(8) If the energy storage system has only one B4850, it is
the host itself, and still follow the above steps.
Note: For more information of matching inverter brands,
please subject to the latest document
<The list of compatibility between Dyness ESS and
Inverters >.
2. If the host is a B4850 battery
module without the DIP switch:
(1) The communication cable that
communicates with the inverter
should use the correct one which
is offered by DYNESS.
(2) After the battery module
parallel cable, cascade cable and
the inverter communication cable
are connected, turn on all B4850
batteries.
(3)Before connecting with
inverter,please ensure the no-dip
battery firmware vertion support
yours inverter.
Caution：The DIP switch mode in case (5),1001 is only for ICC(a special commnunication
device of some no-communication inverter), it’s a specia firmware in BMS,different from general
firmware,so if customers want to use that,please contact dyness to confirm.

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Figure 2-2 CAN/485 interface definition
Table 2-4 Pin Definition
Foot position
Color
Definition
PIN1
Orange/white
485A
PIN2
Orange
XGND
PIN3
Green/white
485B
PIN4
Blue
CANH
PIN5
Blue/white
CANL
PIN6
Green
Reserve
PIN7
Brown/white
XIN
PIN8
Brown
Reserve
PIN9
Orange/white
Reserve
PIN10
Orange
XGND
PIN11
Green/white
Reserve
PIN12
Blue
CANH
PIN13
Blue/white
CANL
PIN14
Green
Reserve
PIN15
Brown/white
XOUT
PIN16
Brown
Reserve
Front
Plug
Socket of communication port
CAN/485

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Table 2-5 LED status indicators
Battery
Status
SOC
LED1
LED2
LED3
LED4
ALM
RUN
Shutdown
/
off
off
off
off
off
off
Standby
75%≤SOC≤100%
●
●
●
●
off
Flashing
50%≤SOC＜75%
●
●
●
off
off
Flashing
25%≤SOC＜50%
●
●
off
off
off
Flashing
5%＜SOC＜25%
●
off
off
off
off
Flashing
0%＜SOC≤5%
●
off
off
off
Flashing
Flashing
SOC=0
off
off
off
off
Flashing/
●
Flashing
Charging
SOC=100%
●
●
●
●
off
Flashing
75%≤SOC＜
100%
●
●
●
Flashing
off
Flashing
50%≤SOC＜75%
●
●
Flashing
off
off
Flashing
25%≤SOC＜50%
●
Flashing
off
off
off
Flashing
0%＜SOC＜25%
Flashing
off
off
off
off
Flashing
Discharging
75%≤SOC≤100%
●
●
●
●
off
●
50%≤SOC＜75%
●
●
●
off
off
●
25%≤SOC＜50%
●
●
off
off
off
●
5%＜SOC＜25%
●
off
off
off
off
●
0%＜SOC≤5%
●
off
off
off
Flashing
●
SOC=0
off
off
off
off
Flashing/
●
Flashing
A special ALM light flashing state:when the communication between batteries is
lost,the red alarm light of the master battery will flash.
● means green light always on ● means red light always on
Flashing: means green light flashing or red light flashing
2.4Battery Management System(BMS)
2.4.1 Voltage Protection
Low Voltage Protection in Discharging：
When any battery cell voltage ortotal voltage is lower than the protection value during discharging,
the over-discharging mode is activated, and the battery buzzer makes an alarm sound. Then
battery system stops supplying power to the outside. When the voltage of each cell back to rated
return range, the protection is over.
Over Voltage Protection in Charging：
Battery will stops charging when total voltage or any battery cell voltage reaches the rated
protection value during charging stage. When total voltage or all cell back to rated range, the
protection is over.
2.4.2 Current Protection
Over Current Protection in Charging：
When the charge current＞45A, current limit protection mode is activated, current will be limited
to 5A，protection is removed after rated time delaying 10S. Circulate like this until the current is
lower than 45A.
Over Current Protection in Discharging：
When the discharging current is greater than the protection value 55A, the battery buzzer alarms
and the system stops discharging. Protection is removed after rated time delaying 1min.

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Caution:
The buzzer sound alarm setting can be manually turned off on the background software, and the
factory default is on.
2.4.3 Temperature Protection
Low/Over temperature protection in charging：
When battery’s temperature is beyond range of -5 ℃~+55 ℃during charging, temperature
protection is activated, device stops charging.
The protection is over when temperature back to rated working range.
Low/Over temperature protection in discharging：
When battery’s temperature is beyond range of -20℃~+55℃during discharging, temperature
protection is activated, device stops supplying power to the outside.
The protection is over when temperature back to rated working range..
2.4.4 Other Protection
Short Circuit Protection：
When the battery is activated from the shutdown state, if a short circuit occurs, the system starts
short-circuit protection for 60 seconds.
Self-Shutdown：
When device connects no external loads and power supply and no external communication for
over 72 hours, device will dormant standby automatically.
Caution
Battery’s maximum discharging current should be more than load’s maximum working current.
3 Installation and Configuration
3.1 Ready for installation
Safety Requirement
This system can only be installed by personnel who have been trained in the power supply system
and have sufficient knowledge of the power system.
The safety regulations and local safety regulations listed below should always be followed during
the installation.
⚫All circuits connected to this power system with an external voltage of less than 48V
must meet the SELV requirements defined in the IEC60950 standard.
⚫If operating within the power system cabinet, make sure the power system is not
charged. Battery devices should also be switched off.
⚫Distribution cable wiring should be reasonable and has the protective measures to
avoid touching these cables while operating power equipment.
⚫when installing the battery system, must wear the protective items below:
The isolation gloves Safety goggles Safety shoes
Figure3-1

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3.1.1 Environmental requirements
Working temperature: -20 ℃~ +55 ℃
•Charging temperature range is 0℃~+55 ℃,
•Discharging temperature range is -20 ℃~+55 ℃
Storage temperature: -10 ℃~ +35 ℃
Relative humidity: 5% ~ 85%RH
Elevation: no more than 4000m
Operating environment: Indoor installation, sites avoid the sun and no wind, no
conductive dust and corrosive gas.
And the following conditions are met:
•Installation location should be away from the sea to avoid brine and high humidity
environment.
•The ground for product arrangement shall be flat and level
•There is no flammable explosive materials near to the installation site.
•The optimal ambient temperature is 15℃~ 30 ℃
•Keep away from dust and messy zones
3.1.2 Tools and data
Hardware tool
Tools and meters that may be used are shown in table 3-1.
Table 3-1 Tool instrument
Name
Screwdriver（Slotted、Phillips）
Multimeter
Torque wrench
Clamp current meter
Diagonal pliers
Insulation tape
Pointed nose pliers
Temperature meter
Pliers to hold the wire
Anti-static bracelet
Stripping pliers
Cable tie
Electric drill
Tape measure
3.1.3 Technical preparation
Electrical interface check
Devices that can be connected directly to the battery can be user equipment, power
supplies, or other power supplies.
⚫Confirm whether the user's PV power generation equipment, power supply or other
power supply equipment has a DC output interface, and measure whether the DC
power output voltage meets the voltage range requirements in Table 2-2.
⚫Confirm that the maximum discharge current capability of the DC power interface of
the user's photovoltaic power generation equipment, power supply or other power
supply equipment should be greater than the maximum charging current of the
products used in Table 2-2.
If the maximum discharge capacity of the DC power interface of the user's
photovoltaic power generation equipment is less than the maximum charging
current of the products used in Table 2-2, the DC power interface of the user's
photovoltaic power generation equipment shall have a current limiting function to
ensure the normal operation of the user’s equipment.

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⚫Verify that the maximum operating current of the battery-powered user equipment
(inverter DC input) should be less than the maximum discharge current of the
products used in Table 2-2.
The security check
⚫Firefighting equipment should be provided near the product, such as portable dry
powder fire extinguisher.
⚫Automatic fire fighting system shall be provided for the case where necessary.
⚫No flammable, explosive and other dangerous product are placed beside the battery.
3.1.4 Unpacking inspection
⚫When the equipment arrives at the installation site, loading and unloading should
be carried out according to the rules and regulations, to prevent from being exposed
to sun and rain.
⚫Before unpacking, the total number of packages shall be indicated according to the
shipping list attached to each package, and the case shall be checked for good
condition.
⚫In the process of unpacking, handle with care and protect the surface coating of the
object.
⚫Open the package, the installation personnel should read the technical documents,
verify the list, according to the configuration table and packing list, ensure objects
are complete and intact, if the internal packing is damaged, should be examined and
recorded in detail.
Packing list is as follows:
Item
Specification
Quantity
Figure
Battery-B4850
48V/50Ah
480×360×90mm
1
Power cable-
positive
Red
/25mm2/L2050mm
1
Power cable-
negative
Black
/25mm2/L2050mm
1
Parallel cable-
positive
Red
/25mm2/L215mm
1
Parallel cable-
negative
Black
/25mm2/L215mm
1

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3.1.5 Engineering coordination
Attention should be paid to the following items before construction:
⚫Power line specification.
The power line specification shall meet the requirements of maximum discharge
current for each product.
⚫Mounting space and bearing capacity.
Make sure that the battery has enough room to install, and that the battery rack and
bracket have enough load capacity.
⚫Wiring.
Make sure the power line and ground wire are reasonable. Not easy to short-circuit,
water and corrosion.
Communication
parallel cable
Black
/L250mm/Double
RJ45 plug
1
Communication
cable-to inverter
Black
/L2000mm /Double
RJ45 plug
1
Ground wire
L500mm,4mm²
1
User Manual
B4850 User manual
1
User Guide
B4850 User guide
1
Screw
Combination screws
M6*14
4

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3.2 Equipment installation
Table 3-2 Installation steps
Step1
Installation
preparation
Confirm that the ON/OFF switch on the front panel of
B4850 unit is in the “OFF” state to ensure no live operation.
Step 2
Mechanical
installation
1. Battery placement position determination
2. Battery module installation
Step3
Electrical
installation
1. Ground cable installation
2. Battery module parallel cable installation
3. Parallel communication cable connection
Step4
Battery system
self-test
1. Turn the ON/OFF switch to the "ON" state
2. Press SW button 3S to wake up battery
3. Check the system output voltage and led status
4. Shut down the system
Step5
Connecting
inverter
1. Connect total positive & total negative cable of the
battery system to the inverter
2. Battery module total positive cable installation
3. Battery module total negative cable installation
4. Connect the communication cable from the master
CAN IN to the inverter
5.Turn on the Power switch and wake up system by
SW button
6.Close the DC breaker between inverter and battery
7.Turn on the inverter and check the communication
between inverter and battery system
3.2.1 Installation preparation
1. Prepare equipment and tools for installation.
2. Check the B4850 unit and confirm that the ON/OFF switch is in the "OFF" state to ensure
the device is shut off..
3.2.2 Mechanical installation
Installation method 1: With Cabinet installation
Figure3-2
Figure3-3
1. Place the B4850 unit on the cabinet
bracket as shown in the figure and
pushthe device into the cabine at
the installation position. (The
cabinet structure in the figure is for
reference only)
2. Secure the B4850 unit to the cabinet
with a nut through the mounting
holes top on the hanging ears of the
B4850 unit.

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16
Installation method 2: With Simple bracket installation
Figure3-4
Figure3-5
Figure3-6
Figure3-7
3.2.3 Electrical installation
Before connecting the power cables, use multimeter to measure cable continuity,
short circuit, confirm positive and negative, and accurately mark the cable labels.
Measuring methods：
•Power cable check: select the buzzer mode of multimeter and detect the both
ends of the same color cable. If the buzzer calls, it means the cable is in good
condition.
•Short circuit judgment: choose multimeter resistor file, probe the same end of
positive and negative pole, if the resistor shows infinity, means that the cable is
available.
•After visual testing of power line is connection, the positive and negative poles of
the battery shall be connected respectively to the positive and negative poles of
the opposite terminal.
1. Place the B4850 and brackets as
shown in the figure3-4, and
insert the B4850 into the
brackets.Use 4 screws to fix the
module on the front bracket.
2. Install another pair of
bracket on the first one,fixed
by buckles between them.
3. Insert the second one
B4850 in to the brackets.
4. Stack the required number of
battery and bracket
combinations as described
above, and fasten the top and
bottom buckles. Shown as
Figure3-7.

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17
It is better to add a circuit breaker between the inverter and the battery system. The selection of
the circuit breaker requires:
Voltage: U>60V
Current: I = Inverter power
45V
The circuit breaker is installed between the battery module and the inverter, as shown in Figure
3-8:
No.1 No.2 No.3 No.4 No.5 No.6
Figure3-8
Power cable-
negative
Power cable-
positive
Parallel cable-
positive
Parallel cable-
negative
Communication cable-to inverter
Communication
parallel cable
Circuit
breaker
Inverter

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Note: 1.After the whole system connection,set the master DIP mode according to the inverter
model firstly,then start the battery.
2.The BAT-INV comms cable is from inverter comm port to master CAN IN port,BAT-BAT
cable is from master CAN OUT to slave1 CAN IN,slave1 CAN OUT to slave2 CAN IN…
3.Each pair of power cable,it’s limited continuous current is 120A,so if the inverter Max.work
current more than 120A,please add power cable according to the proportion.
Note: For more information of matching inverter brands, please subject to the latest document
<The list of compatibility between Dyness ESS and Inverters >.
3.2.4 Battery parameter settings on the inverter
Max Charging(Bulk) Voltage: 53.5V
Absorption Voltage: 53V
Float Voltage: 52.5V
Shut Down(cut off) Voltage: 47V
Shut Down(cut off) SOC: 20%
Restart Voltage: 49V
Max Charge Current: 25A*battery QTY
Max Discharge Current: 25A*battery QTY
Capacity：1*B4850=50Ah
3.2.5 Register on the website after installation
After the battery system installation is completed and the running is normal,
you need to log in to the DYNESS official website to register the product
installation and use information to make the product warranty effective.
Please follow the instructions on the website to register.
http://www.dyness-tech.com.cn Service Sign Up