Growatt ARK 5.1-25.6XH-A1 User manual

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Manual
Growatt New Energy
Shenzhen Growatt New Energy Co., Ltd
[phone]
www.ginverter.com
T
E
W
[e-mail]
GR-UM-242-A-00
ARK 5.1-25.6XH-A1 High Voltage Battery System
User Manual (V1.0)
4-13/F,Building A,Sino-German(Europe) Industrial Park,
Hangcheng Ave,Bao’an District, Shenzhen, China

Contents
1 Product Overview
2 Safety
3 Storage and Transportation
2.1 Basic security
2.2 Safety Precautions
2.3 Warning Labels
2.4 Emergency Responses
4 Installation
5 Power on/off Battery system 5 1 Power on Battery system
5.2 Power off battery system
.
6.1 Preparation
6.2 Battery pack or high voltage
controller replacement
6.3 System Failure Information List and
Troubleshooting Suggestions
1.1 Intended Use
1.2 Appearance
1.3 Working Principle and Function
3.1 Storage Requirements
3.2 Transportation Requirement
4 1 Basic Installation Requirements
4.2 Installation Required Tools
4.3 Installation Procedures
4.4 Electrical Connection
.
About this Document
This document describes the installation, electrical connection, operation, commission,
maintenance and troubleshooting of ARK 5.1-25.6XH-A1 Battery System (hereafter
simply put ARK XH-A1). Before installing and operating ARK XH-A1 system, ensure that
you are familiar with product features, functions, and safety precautions provided in this
document.
Symbol
Description
Indicates a potentially hazardous situation, if not avoided, could result
in serious injury or death.
WARNING
6 Maintenance Guide
7 Technical Specifications
Appendix I
7.1 ARK XH-A1(high voltage system)
7.2 BDC 95045-A1 (High voltage
controller)
7.3 ARK 2.5H-A1 (battery pack)

PV Array
Electrical Grid
AC
Breaker
The entire ARK XH-A1 high-voltage energy storage system includes a BDC 95045-A1
(High voltage controller) and multiple ARK 2.5H-A1(battery packs, Number of series less
than 10 ).
Each ARK 2.5H-A1 consists of 50Ah cells which form 51.2V voltage battery pack via one
parallel and sixteen serial connections (1P16S). Two to ten ARK 2.5H-A1 can be
connected in serial and extend the capacity and power of energy storage system.
The ARK XH-A1 battery system powers the loads through hybrid inverter (It can be
equipped with single-phase or three-phase, the following is just an example)at nighttime
without solar; when solar becomes available during daytime, solar energy powers the
loads as a priority and store residual solar power into the ARK XH-A1 battery system.
1 Product Overview
1.1 Intended Use
12
1.2 Appearance
1.2.1 BDC 95045-A1 (High voltage controller)
BDC 95045-A1 (High voltage controller) is composed of battery control unit (BCU),
Power control units, relay, DC breaker, power supply and communication terminals. The
appearance of the product is shown as below.
Fig 1.2: Schematic diagram of power panel
Location
Port
Function
1
POWER
Wake up battery.
2
INV
Port for communication with hybrid inverter.
3
Link-in
Battery system in parallel communication input
interface.
4
Link-out
Battery system in parallel communication output
interface.
5
BMU
Communication with the battery module.
6
Pressure relief valve
Pressures inside is released via the vent.
7
Module-
Connect to the negative power terminal of the
battery module.
8
Module+
Connect to the positive power terminal of the
battery module.
9
Ground terminal, connect to the battery module.
10
USB interface
USB interface.
11
LED1
Blue, 0%-25%SOC.
12
LED2
Blue, 26%-50%SOC.
13
LED3
Blue, 51%-75%SOC.
14
LED4
Blue, 76%-100%SOC.
15
Yellow Run light indicates normal operation.
Red ALM light indicates failure or protection status.
16
Breaker
Breaker to turn on/off the whole battery system
17
BAT+
The positive output from battery system to the
hybrid inverter.
18
BAT-
The negative output from battery system to the
hybrid inverter.
19
Ground terminal, connect to the hybrid inverter.
LED5 RUN
ALM
Dimension (unit: mm)
Fig 1.3: Dimension of BDC 95045-A1
EPS
Load
EPS
AC
Meter Relay
Load
Battery Inverter
Grid
Fig 1.1: System diagram of ARKXH-A1High voltage battery system
rirgf
日发电量 ：
10 KW.H

34
Fig 1.4: Schematic diagram of power panel
1.2.2 ARK 2.5H-A1 (battery pack)
ARK 2.5H-A1 consists of battery module (including cell and mechanical parts), Battery
management unit (BMU) as well as power and communication terminals. Product
appearance is shown as below.
Location
Port
Function
1
Link0
Communicate with the previous module.
2
Link1
Communicate with the next module.
3
Module-
Power terminal connected to the negative terminal of
the module.
4
Module+
Power terminal connected to the positive terminal of
the module.
5
Ground terminal, connect to the next module.
6
Pressure relief value
Pressures inside is released via the vent.
7
Ground terminal, connect to the pervious module.
Dimension (unit: mm)
Fig 1.5: Dimension of ARK 2.5H-A1
(The depth dimension is 283mm when wall-mount installation is selected)
1.3 Working Principle and Function
The ARK XH-A1 high voltage battery system is composed of a High voltage controller
BDC 95045-A1 and battery packs ARK 2.5H-A1 in series. It contains electrochemical
batteries, battery control units, Power control units, battery management units, power
and signal terminals, and mechanical parts.
Compared with other battery systems, it has better charging and discharging
performance, higher charging and discharging efficiency, more accurate status monitor,
longer cycle life and less self-discharge loss.
A single cluster system can connect 2 to 10 PACKs in series to increase the capacity and
power of the battery system; at the same time, it supports parallel connection of 2 to 4
clusters of battery systems. The entire battery system communicates with hybrid inverter
through RS485 communication, and the operation stability is high.
ØMonitoring: voltage, current and temperature detection of both single cells and
battery system.
ØProtection and Alarm: protection and alarm when overvoltage, under voltage, over
current, over-temperature or under temperature occurs. See Appendix I for the details.
ØReport: report all alarm and status data to hybrid inverter.
Ø Series connection: support two to ten battery packs in Series connection.
ØParallel connection: support two to four battery clusters in parallel.
ØBalance function: passive balance function.
ØPower failure triggered by fault: 15 minutes after the battery system and hybrid
inverter communication is disconnected or after under-voltage protection.

6
5
When installing or using a battery system, the safety information contained in this
section must always be followed. For safety reasons, it is the installer's responsibility to
be familiar with this manual and all warnings before installation.
2.1 Basic security
The battery system has been designed and tested in accordance with strict rules with
international safety certification requirements. Before any installation or use of the
battery system, please read all safety instructions carefully and always follow the relevant
rules. Growatt is not responsible for any consequences resulting from violation of the
following regulations:
Damage occurred during transportation.
Incorrect transportation, storage, installation and use, or customer fails to convey the
correct information about transportation, storage, installation and use to terminal
customers.
Non-professional installation.
Failure to obey the rules of this operation instructions and safety precautions in this
document.
Unauthorized modifications or removal of the software package.
The product's tamper label is damaged or the product lacks any parts (except
authorized disassembly parts).
Operation in extreme environments which are not allowed in this document.
Repair, disassemble, or change PACKs without authorization and cause failure.
 Damage to shell labels or modifies date of production.
Battery packs fail to be charge for more than six months.
Damages due to force majeure (such as lightning, earthquakes, fire, and storms).
Warranty expiration.
2.2 Safety Precautions
2.2.1 Environmental requirements
ØDo not expose the battery to temperature above 50℃ or heat sources.
ØDo not install or use the battery in wet locations, moisture, corrosive gases or liquids,
such as bathroom.
Ø Do not expose the battery to direct sunlight for extended periods of time.
ØPlace battery in safe place away from children and animals.
ØBattery power terminals shall not touch conductive objects such as wires.
ØDo not dispose the batteries in fire, which may cause an explosion.
ØThe battery system shall not come in contact with liquids.
Safety 2 2.2.2 Operation Precautions
ØDo not touch the battery system with wet hands.
ØDo not disassemble the battery system without permission.
ØDo not crush, drop or pierce the battery pack and high voltage controller.
ØDispose the batteries according to local safety regulations.
ØStore and recharge battery in accordance with this manual.
ØEnsure the connection of ground wire reliable.
ØRemove all metal objects such as watches and rings that could cause a short-circuit
before installation, replacement and maintenance.
ØThe system should be installed, repaired, replaced or maintained by skilled person or
instructed person
ªSkilled person
Person with relevant education and experience to enable him or her to perceive risks
and to avoid hazards which the equipment can create .
Note 1 to entry: Such person has access to restricted access areas
[SOURCE: IEC 60050-195:1998, 195-04-01, Modified – The word “(electrically)”
has been deleted from the term, and “electricity” has been replaced by “the
equipment” in the definition. The note has been added.]
ªInstructed person
Person adequately advised or supervised by skilled persons to enable him or her to
perceive risks and to avoid hazards which the equipment can create
Note 1 to entry: Such person has access to restricted access areas
Note 2 to entry: Examples of activities performed by an instructed person can be
found in IEC 61140:2001, Clause 8.
[SOURCE: IEC 60050-195:1998, 195-04-02, Modified – The word “(electrically)”
has been deleted from the term, and the notes have been added.]
ØWhen storing or handling batteries, do not stack batteries without package.
ØDo not broke the battery, the released electrolyte may be toxic and is harmful to skin
and eyes.
ØPackaged batteries should not be stacked more than specified number stipulated on
the packing case.
ØDo not use damaged, failed or deformed batteries, which may lead to high
temperature or even dangerous accidents. Continued operation of damaged battery may
result in electrical shock, fire or even worse.
2.3 Warning Labels
Symbols
Description
Operation after 5 minutes after disconnecting the power supply
(including disconnect/connect power wiring)
Do not dispose in trash
Lithium ion battery can be recycled
Certification in European union area
Electric shock hazard

78
Symbols
Description
Explosive gas
May leak corrosive electrolyte
Heavy enough to cause severe injury
Keep the Pack away from children
Make sure the battery polarity well connected
Do not expose to fire
Operate as the Manual
Do not disassemble or alter the PACK to avoid heat ,explosion or fire.
Do not use the PACK beyond specifide conditions.It might cause heat
generation,damage,or deterioration of its performance.
Do not throw,drop,hit,drive a nail in,stamp on the PACK.It may cause
heat generation,explosion,or fire.
In case of electrolyte leakage,keep leaked electrolyte away from
contact with eyes or skin.immediately clean with water and seek help
from a doctor.
Do not put the PACK into a fire.Do not use it or leave it on a place
near fire,heaters,or high temperature sources.It may cause over
temperature,explosion or fire.
Do not submerge the PACK in water,or wet the product.It may cause
heat generation,explosion ,or fire.
Do not reversely connect the PACK positive(+)and negative(-)terminal.
Do not short circuit by letting the PACK terminals(+and -)contact a wire
or any metal.
The unit is heavy enough to cause severe injury.
Keep out of reach of children or animals.
WARNING
X
2.4 Emergency Responses
Manufacturer takes foreseeable risk scenarios into consideration and is designed to
reduce hazards and dangers. However, if the following situation occurs, do as below:
Situation Occurs
Description and action need
Leakage
Avoid touch of leaking liquid or gas. If you touch the leaking
electrolyte, do as below immediately.
Inhalation: Evacuate the contaminated area, and seek medical help.
Eye contact: Rinse eyes with flowing water for 15 minutes, and seek
medical help.
Skin contact: Rinse contacted area thoroughly with soap and water,
and seek medical help.
Ingestion: Vomiting, and seek medical help.
On fire
It's hard for battery system ignite spontaneously. If the battery has
caught a fire, do not try to extinguish the fire but evacuate people
immediately.
Wet Packs
If the battery system is soaked or submerged in water, do not access
it. Contact Growatt or distributors immediately for technical
assistance.
Damaged shell
Damage to the shell is very dangerous, so special attention must be
paid. They are no longer suitable for use and may be dangerous to
personnel. If the battery case is damaged, please stop using it and
contact Growatt or a distributor.
Fig 2.1: Nameplate Fig 2.2: Label
Fig 2.3: Nameplate
The performance will be limited
when the temperature is below
0°C.
WARNING
Nominal Energy
System Model/
Nominal /Power
ARK 5.1XH-A1/
Ingress Protect ion
x
Voltage Range/
Operation Ambien t
Temperature -10 ~+50°C°C
IP65
Made in China
360~550 d.c.V/
2.5kW/5.12kWh
ARK 7. /6XH-A1
360~950 d.c.V/
3.75kW/7.68kWh
ARK /10.2XH-A1
360~950 d.c.V/
5kW/10.24kWh
ARK /12.8XH-A1
360~950 d.c.V/
6.25kW/12.8kWh
ARK /15.3XH-A1
360~950 d.c.V/
7.5kW/15.36kWh
ARK /17.9XH-A1
400~950 d.c.V/
8.75kW/17.92kWh
ARK /20.4XH-A1
550~950 d.c.V/
10kW/20.48kWh
ARK High Voltage Batte ry System
ARK /23.0XH-A1
580~950 d.c.V/
11.25kW/23.04kWh
ARK /25.6XH-A1
640~950 d.c.V/
12.5kW/25.6kWh
Total/Rated Capac ity
Max. Current
High Volta ge
Control ler Model
50Ah/45Ah
21A
B DC 95045-A1
Protective Clas s I

10
9
3 Storage and Transportation
3.1 Storage Requirements
ØPlace the product follow the identification on the packing case during storage.
Ø Do not put the product upside down or sidelong.
Ø The defective product needs to be separated from other product.
ØThe storage environment requirements are as follows:
Install the product in a dry and clean place with proper ventilation.
The storage temperature for a short week(7 days) is between -30°C to 60℃.
If you store the product over a long period of six months, the storage temperature is
between-20°C to 45°C, relative humidity: 5%~95%RH.
Place the product away from corrosive and organic substances (including gas
exposure).
Free from direct exposure to sunlight and rain.
At least two meters away from heat sources (such as a radiator) .
Free from exposure to intensive infrared radiation.
3.2 Transportation Requirement
Battery pack has been certified in UN38.3 (Section 38.3 of the sixth Revised Edition of the
Recommendations on the Transport of Dangerous Goods: Manual of Tests and Criteria)
and SN/T 0370.2-2009 (Part 2: Performance Test of the Rules for the Inspection of
Packaging for Exporting Dangerous Goods). Battery pack is classified as category 9
dangerous goods.
Ø The battery pack shall not be transported with other inflammable, explosive or toxic
substances
ØEnsure the original Package and label complete and recognizable.
ØProhibit direct exposure to sunlight, rain, condensing water caused by temperature
difference and mechanical damages.
ØProhibit to pile up more than six battery pack.
ØThere will be a drop in capacity during transportation and storage.
ØTransportation temperature is between-20°C to 45°C, relative humidity: 5%~95%RH.
If the battery pack is not used for more than six months, a complete
charge-discharge cycle is required every six months.
Notice
Installation 4
WARNING
ØEnsure to read the Guidance before installation in order to understand
product information and safety cautions;
ØOperators should be well trained technicians and fully understand the
whole photovoltaic system, grid network, battery system, working
principle and national regional standards;
Ø Installers must use insulating tools and wear safety equipment.
ØDevice damages caused by failure to comply with storage,
transportation, installation and use requirements specified in Guidance
are not coved by Warranty.
Ø Do not install or use battery near explosive or inflammable
substances.are not coved by Warranty.
Ø Use battery in well-ventilated environment with temperature ranging
from -10℃ to 45℃.For outdoor installation, build sun & rain shade to
avoid direct sunlight and rain exposure.
ØMaintain a minimum level of dust and dirt in the environment.
ØDo not install battery in highly humid area such as bathroom.
ØPlease make sure that all battery pack connected in series are from the
same batch, the same model and the same manufacturer; do not mix old
batteries with new batteries. A battery pack that does not exceed 200
cycles is defined as a new battery.
4.1 Basic Installation Requirements
ØThe battery system can be installed indoors or outdoors. The following conditions are
allowed:
Fig 4.1:Acceptable wall mounted installation

11 12
Fig 4.2:Acceptable floor standing installation
Do not place the battery pack upside down.
WARNING
ØWhen installing outdoors, it is necessary to install sunshades and rain shelters to avoid
direct exposure to sunlight and rain.
Fig 4.3: Sunshades and rain shelters
4.2 Installation Required Tools
The following tools are required to install the battery system:
Drill Screw Driver Wrench
Pencil Tap Measure Multimeter
It is recommended to wear the following safety gear when dealing with the battery
system.
Insulated Glove Safety Goggle Safety Shoes
4.3 Installation Procedures
4.3.1 Pre-installation Check
Ø Check the PACK package before open it. If any abnormity is detected, do not open the
Package and contact your distributor.
Ø Check the quantity of all parts inside according to the package list. If there is any part
missing or damaged, please contact your distributor.
GroundGround
Wall
Ground
90°
90°
90°90°

14
13
4.3.1.1 Check the BDC 95045-A1
Fig 4.4: components and parts of BDC 95045-A1
4.3.1.2 check the ARK XH Cable
Fig 4.5: components and parts of ARK XH Cable
4.3.1.3 Check the ARK 2.5H-A1
4.3.1.5 Check the wiring of BDC 95045-A1 to the hybrid Inverter
BDC 95045-A1
*
Fig 4.8: Optional installation accessories
*
*
***
*
*
**
*
ØThe High voltage controller (BDC 95045-A1) and the battery pack (ARK
2.5H-A 1) are standard accessories, please be sure to purchase both, a
battery system only needs a High voltage controller (BDC 95045-A1),
battery pack (ARK 2.5H-A1) You can freely match the number within 2 to
10 .
ØThe battery base is only used for floor installation. The number of
battery bases is matched according to the number of battery rows
installed. If it is a row, only one battery base is required, and two rows are
required two. And the wall bracket is only used for wall installation. The
number of wall brackets are determined by the number of battery
modules. The battery base and wall bracket are optional accessory, not
standard accessory.”
ØIf you want to install the same battery system in two lines, you need to
purchase a series extension cable separately for connection.
ØThe installation method can be selected wall Mounted installation or
floor standing installation, see Section 4.3.1.4.
Notice
Warranty card 1
ARK 2.5H-A1 1 Serial cable 1
*
**
Fig 4.6: components and parts of ARK 2.5H-A1
4.3.1.4 Check the wiring of ARK 2.5H-A1 series cable
Fig 4.7: components and part of ARK 2.5H-A1 series cable
Wall Hangers 1
ARK Left mounting plate 1
ARK Right mounting plate 1
M6 explosive screw 2
M6 flange nut 1
M4x10 Combination screw 2
**
*
*
**
*2*2
*1
M5 Phillips round head
three combination screw
*4
*
14

15 16
4.3.2 Wall Mounted Installation
ØStep 1: Please make sure that the weight capacity of the wall should exceed 300kg.
ØStep 2: Choose an alloy drill with a diameter of 8mm, and drill at least 50mm
mounting holes in the wall. Clean the soil and insert the expansion tube into the hole,
then screw in the screw to fix the wall mount.
ØStep 3: Fix the battery on the wall mount from top to bottom, make sure that the
battery will not shake, and then lock the safety screw.
ØThe number of wall-mounted installations should not exceed six
(including High voltage controller).
ØIf there are more than six, please install them in two rows, and the
spacing should be greater than or equal to 300mm.
Notice
Fig 4.9: Multiple battery installation process with wall mount
4.3.3 Floor Standing Installation
ØStep 1: Choose an alloy drill with a diameter of 8mm and drill at least 50mm mounting
holes on the wall. Clean the soil and insert the expansion tube into the hole, then screw
in the screw to fix the wall mount.
ØStep 2: Fix the battery on the wall bracket and the base from bottom to top, make sure
the battery will not shake, and then lock the safety screw.
ØFor floor installation, we recommend that the number of the stacked
battery modules is no higher than seven (including High voltage
controller).
ØIf there are more than seven, please install them in two rows, and the
spacing should be greater than or equal to 300mm.
Notice
4.4 Electrical Connection
ØDo not forget wear ESD wrist strap and gloves, safety gloves and
goggles.
Fig 4.10: Multiple battery pack with base installation process
WARNING

17 18
4.4.1 Communication port definition
BDC 95045-A1 communication interface
MIN TL-XH Hybrid inverter(single phase)
interface
Silk screen
Terminal serial
number
Definition
Silk screen
Terminal serial
number
Definition
INV
1
WAKE-(W-)
SYS COM
1
BAT.EN-
2
WAKE+(W+)
2
BAT.EN+
3
CAN_H
3
/
4
CAN_L
4
/
5
GND
5
/
6
Null
6
/
7
RS 485_B (B)
7
RS 485_B
8
RS 485_A(A)
8
RS 485_A
RJ45 Plug
1 8
12345678
RJ45 Socket
Pin assignments front view Pin assignments front view
BDC 95045-A1 communication interface
MOD TL3-XH Hybrid inverter (three
phase)interface
Silk screen
Terminal serial
number
Definition
Silk screen
Terminal serial
number
Definition
INV
1
WAKE-(W-)
COM
10
BAT.EN-
2
WAKE+(W+)
9
BAT.EN+
3
CAN_H
/
/
4
CAN_L
/
/
5
GND
/
/
6
Null
/
/
7
RS 485_B (B)
8
RS485B2
8
RS 485_A(A)
7
RS485A2
RJ45 Plug
1 8
12345678
RJ45 Socket
Pin assignments front viewPin assignments front view
Communication line B
Connector A
SYS COM “1" to “W-”
SYS COM “2" to “W+”
SYS COM “7" to “B”
SYS COM “8" to “A”
Connector A
Communication line B
COM “10" to “ W-”
COM “9" to “W +”
COM “8" to “B ”
COM “7" to “A ”

20
19
4.4.2 System connection
ØBefore installing in series, make sure that the voltage difference of the
battery pack must be less than or equal to 0.5V.
ØWhen connecting the power line, it must be the same color terminal to
connect and then use it together, otherwise there may be dangers such
as short circuit on the side.
ØA DC circuit breaker has been installed in the High voltage controller, It
is not recommended to install a DC circuit breaker between the battery
system and the hybrid inverter system, If you want to install a DC circuit
breaker, do not operate the DC circuit breaker with power on, otherwise
the machine may be damaged. And then you need to purchase it yourself
according to the following specifications:
a. Voltage: 1000Vdc
b. Current: 63A
Notice
4.4.2.1 System connection diagram
Fig 4.11: Single line installation Fig 4.12: Two lines installation
To PCS
Insert Plug
To PCS
Insert Plug
Fig 4.10
The battery is not allowed to be installed in the running state, and all the RUN lights of
battery modules should be off before installation.
To ensure system security, do not forget to install ground wire.
Don't forget to connect the communication plug of the last battery pack, otherwise it
will cause system failure.
Fig 4.11 Note:
When installing in two rows, please purchase the extended serial cable, extended ground
cable and extended communication cable between the two rows separately.
Don't forget to connect the ommunication plug of the last battery pack, otherwise it
will cause system failure.
Note:
4.4.2.2 Electrical wiring connection
A. BDC 95045-A1 (High voltage controller) wiring
Step 1: Insert the power cable into the corresponding port, then there is click sound
indicating the connection is ok.
Step 2: Insert the communication cable into the "INV port" and "BMU port", and then
tighten the communication terminal clockwise. INV communication port is used for
communication connection with hybrid inverter, BMU communication port is used for
communication connection with battery pack.
ØFor a single cluster battery system, the “Link-in” and “Link out” port
of the BDC 95045-A1 don't need to be connected, they are only used for
parallel connection of the battery systems.
ØPlease pay attention to the connector color when connection the
power line. Only the same color of the connector could be connected
together.
Ø To ensure system security, do not forget to install ground wire.
Ø This area is a restricted access area , which is explained below:
area accessible only to electrically skilled persons and electrically
instructed persons with the proper authorization.
note 1 to entry：An electrically skilled person is a person with
relevant education and experience to enable him or her to perceive risks
and to avoid hazards electricity can create.
note 2 to entry：An electrically instructed person is a person
adequately advised or supervised by electrically skilled persons to enable
him or her to perceive risks and to avoid hazards which electricity can
create.
Notice
Fig 4.13: BDC 95045-A1 Electrical wiring connection diagram

22
21
B.ARK 2.5H-A1(Battery module) wiring
Step 1: Insert the power cable into the corresponding port, then there is click sound
indicating the connection is ok.
Step 2: Insert the communication cable into the "Link0 port" and "Link1 port", and then
tighten the communication terminal clockwise.
Step 3: Insert a plug into the "Link1 port" of the last ARK 2.5H-A1(battery module). The
plug is an annex of BDC 95045-A1 (High voltage controller).
ØThe battery module furthest from the BDC 95045-A1 (High voltage
controller) is defined as the last battery module.
ØPlease pay attention to the connector color when connecting the power
line. Only the same color of the connector could be connected together.
ØThe power lines between the battery modules are connected in series.
Be careful not to short-circuit the battery modules during the connection
process.
Notice
Power on/off Battery system 5
5.1 Power on Battery system
ØThe installation and use of batteries involve much specialized
knowledge. Therefore, technicians should be given appropriate technical
training and obtain operational certificates in compliance with local laws
and regulations. Please ensure technicians have obtained training
certificate before operation.
ØPlease stand on dry insulating objects and do not wear conductive
material such as watches and necklace during operation. Insulated tools
should be used.
ØDo not contact any positions with potential difference.
ØProhibition sign should be hung on the battery: " Non - professionals,
do not touch.”
ØIf any abnormalities occur during the startup phase, power off the
PACK immediately. After problem confirmed, proceed again.
ØMake sure the inverter is turned off before checking the PACK.
Notice
Ø Before turning on the battery system, please
check whether the system wiring is properly
connected, including the wiring to the hybrid
inverter.
ØTurn the DC breaker of the BDC 95045-A1
(High voltage controller) to “ON”, then press
the power button until the Battery Run light
turn yellow, which means the battery system is
powered on completely .
Power on the PACK by pressing power button(t>5S)
Serial
Procedures
Acceptation criteria
1
Connect the battery and hybrid
inverter
Make sure the wiring harnesses are well
connected
2
Close the breaker of the battery
system
Make sure the breaker is ON
3
Press POWER button for three to
eight seconds. Observe the LED
indication on panel.
1. If both RUN/ALM and SOC lights turn on
normally, PACK is powered on successfully.
2. If RUN/ALM light turns red, there is a failure
and should solve it before power on again.
Fig 5.1
Fig 4.14: ARK 2.5H-A1 Electrical wiring connection diagram

23 24
5.2 Power off Battery system
Fig 5.2
Ø Turn the DC breaker of the BDC 95045-A1
(High voltage controller) to "Off" to turn off
the entire.
Maintenance Guide 6
6.1 Preparation
Before maintenance, please make sure that the battery system is powered off and the DC
circuit breaker is off.
6.2 Battery pack or High voltage controller replacement
ØWear safety gloves.
ØOpen the breaker and power off the battery system.
ØDisconnect power lines and communication lines of the battery system.
ØWall-mounting battery system: Uninstall the safety screws on both sides of the battery
pack or High voltage controller. Lift up the battery pack or High voltage controller.
ØFloor-standing battery system: Uninstall the safety screws on both sides of the battery
pack or High voltage controller. Lift up the battery pack or High voltage controller.
ØPut the battery pack or High voltage controller into the packing box according to the
repair procedure and transport the battery pack or High voltage controller to the
designated repair site.
ØInstall new battery pack or High voltage controller based on procedure specified in
Section 4.
6.3 System Failure Information List and Troubleshooting
Suggestions
Error
Indication
Error
description
Error cause
Suggested actions
ALM
（ ALM
Light
Flickers）
Discharge under
voltage
protection
Single cell voltage
below the threshold
for under-voltage
protection.
There is over discharge risk. User
should stop discharging and
arrange recharge.
Charge over
voltage
protection
Single cell voltage
exceeding threshold
for protection
threshold.
1. There is no safety threat;
2. User should stop charging.
Wait for the battery system to
automatically resolve the fault.
External RS485
Communication
failure
Communication loss
between hybrid
inverter and battery
system.
1. There is no safety threat and
user should stop using battery.
2. Check if hybrid inverter and
battery communication terminal
is well connected.
3. If hybrid inverter and PACK
cannot communicate when the
communication wire is confirmed
well connected, user should
contact installer to repair battery.

25 26
Interior CAN
Communication
failure
Communication loss
between two
parallel
1.Check whether the
communication line between the
battery pack and the battery pack
is connected OK;
2.Check whether the
communication line between the
High voltage controller and the
battery pack is connected OK.
High
temperature
protection
The temperature
exceeds the bms
protection value
It is dangerous, please stop using
the battery immediately, wait for
the battery temperature to drop,
the fault will be automatically
resolved.
Low temperature
protection
The temperature is
below the
protection value
No safety risk, wait for the
temperature to rise, the fault will
be automatically resolved.
(ALM
Light on)
Discharge short
circuit
External short circuit
of battery system
There is safety risk and user
should stop using battery
User should contact installer to
repair PCS and battery.
Precharger short
circuit
Precharger
overtime circuit
Voltage
sampling
anomaly
protection
BMS Voltage
sampling
failure
There is safety risk and user
should stop using battery.
User should contact installer to
repair battery.
Current
sampling fault
BMS current
sampling
failure
Main circuit fault
BMS main power
circuit failure
There is safety risk and user
should stop using battery.
User should contact installer to
repair battery.
EEPROM fault
protection
BMS MCU fail to get
data from EEPROM
There is safety risk and user
should stop using battery.
User should contact installer to
repair battery.
Chip fault
protection
Communication loss
between two MCU
There is safety risk and user
should stop using battery.
User should contact installer to
repair battery.
Technical Specifications7
7.1 ARK XH-A1(high voltage system)
System Model
ARK
5.1XH-A1
ARK
7.6XH-A1
ARK
10.2XH-A1
ARK
12.8XH-A1
ARK
15.3XH-A1
High Voltage
Controller Model
BDC 95045-A1
Number of power
modules
1
Battery module
ARK 2.5H-A1（2.56kWh,51.2V,28kg）
Battery module
energy
2.56kWh
Number of
Modules in Series
2
3
4
5
6
Nominal energy
5.12kWh
7.68kWh
10.24kWh
12.8kWh
15.36kWh
Max. output power
2.5kW
3.75kW
5kW
6.25kW
7.5kW
Peak output power
5kW,10s
7.5kW,10s
10kW,10s
12.5kW,10s
15kW,10s
Dimension
(W*D*H)
650 * 260 *
630 mm
650 * 260 *
815 mm
650 *260 *
1000 mm
650 * 260 *
1185mm
650 * 260 *
1370 mm
Weight
71kg
99kg
127kg
155kg
183kg
Module Nominal
Voltage
102.4V
153.6V
204.8V
256V
307.2V
Nominal voltage
400V
400V/650V
400V/650V
400V/650V
400V/650V
Operating voltage
range
360V～550V
360V～950V
360V～950V
360V～950V
360V～950V
Battery type
Cobalt Free Lithium Iron Phosphate (LFP）
Ingress Protection
IP65
Installation
Wall-mounted or Floor installation
Altitude
≤2000m
Operating ambient
temperature
–10℃~50℃
Relative humidity
5%～95%
Cooling
Natural
Warranty
10 years
Display
LED indicator
Battery System
Secondary Li-ion Battery System
Note：
① The size does not include the base. When configuring more than 8PCS battery
Modules, it is recommended to place them in two groups to avoid stacking too high and
inconvenient installation.
② When choosing wall-mounted installation, you need to ensure that the installation
wall can bear the weight of the battery system. We recommend floor stacking
installation.
③ This Nominal Voltage refer to the Module side Voltage(battery packs Voltage after
series.
④ Single phase power conversion system allows 2-7PCS battery modules in series, its
nominal voltage is 400V;three phase power conversion system allows 3-10PCS battery
modules in series, its nominal voltage is 650V.
①
②
③
④

27 28
System Model
ARK
17.9XH-A1
ARK
20.4XH-A1
ARK
23.0XH-A1
ARK
25.6XH-A1
High Voltage
Controller Model
BDC 95045-A1
Number of power
modules
1
Battery module
ARK 2.5H-A1（2.56kWh,51.2V,28kg）
Battery module
energy
2.56kWh
Number of
Modules in Series
7
8
9
10
Nominal energy
17.92kWh
20.48kWh
23.04kWh
25.6kWh
Max. output
power
8.75kW
10kW
11.25kW
12.5kW
Peak output power
17.5kW,10s
20kW,10s
22.5kW,10s
25kW,10s
Dimension
(W*D*H)
650 * 260 * 1555
mm
650 *260*1740
mm
650 *260 * 1925
mm
650 *260 * 2110
mm
Weight
211kg
239kg
267kg
295kg
Module Nomial
Voltage
358.4V
409.6 V
460.8V
512V
Nominal voltage
400V/650V
650V
650V
650V
Operating voltage
range
400V～950V
550V～950V
580V～950V
640V～950V
Battery type
Cobalt Free Lithium Iron Phosphate (LFP）
Ingress Protection
IP65
Installation
Wall-mounted or Floor installation
Altitude
≤2000m
Operating
ambient
temperature
–10℃~50℃
Relative humidity
5%～95%
Cooling
Natural
Warranty
10 years
Display
LED indicator
Battery System
Secondary Li-ion Battery System
Note：
① The size does not include the base. When configuring more than 8PCS battery
Modules, it is recommended to place them in two groups to avoid stacking too high and
inconvenient installation.
② When choosing wall-mounted installation, you need to ensure that the installation
wall can bear the weight of the battery system. We recommend floor stacking
installation.
③ This Nominal Voltage refer to the Module side Voltage(battery packs Voltage after
series.
④ Single phase power conversion system allows 2-7PCS battery modules in series, its
nominal voltage is 400V;Three phase power conversion system allows 3-10PCS battery
modules in series, its nominal voltage is 650V.
7.2 BDC 95045-A1 (High voltage controller)
No.
Items
Specification
1
Model
BDC 95045-A1
2
BAT voltage range
90V-568V
3
Power module output voltage
360V-950V
4
Maximum current
21A
5
peak current
41A,10s
6
temperature range
-10~50℃
7
IP rating
IP65
8
Warranty
≥10 years
9
communication method
CAN2.0,RS485
10
Dimensions (W/D/H)
650*260*265 mm ±2mm
11
Weight
15±1kg
12
Certification
CE-EMC
13
Environmental requirements
RoHS
No.
Items
Specification
1
Battery pack Module
ARK 2.5H-A1
2
Nominal Capacity/Energy
50Ah/2.56kWh
3
Rated/Usable Capacity/Energy
45Ah/2.3 kWh
4
Rated Voltage
51.2V
5
Operating Voltage
47.2 - 56.8V
6
Rated current(25℃)
25A
7
Maximum current(25℃)
50A
8
Battery Type
Cobalt Free Lithium Iron Phosphate (LFP)
9
Operative temperature range
-10~50℃
10
Storage conditions
﹣30℃~50℃/7 days; -20℃~45℃/6
months; 95%RH
11
Cooling
Natural cooling
12
Dimension (W/D/H)
650/260/184mm±2mm
13
Weight
27±1kg
14
Installation
Wall-mounted installation/floor standing
installation
15
Warranty
10 Years
16
Ingress protection
IP65
17
Battery designation
IFpP/41/150/102/[1P16S]M/-10+50/90
18
Cell safety certification
IEC62619/UL1642
19
Safety certification
IEC62619/CE/RCM/ CEC
20
Transportation test standard
UN38.3
21
Environmental requirements
RoHS
Note:
①The actual operating voltage range depends on the matched hybrid inverter system
7.3 ARK 2.5H-A1(battery pack)
①
②
③
④
①

29
Method for calculating rated capacity:
Rated capacity of the measured module: 45 Ah
Number of modules connected in series: 2~10
Calculated rated capacity (Ah) = 45 Ah *1 =45Ah
30
7.4 Battery System designation
Model
Battery designation
Recommended charge instructions
ARK 5.1XH-A1
IFpP/41/150/102/[(1P16S)2S]
M/-10+50/90
constant current 6A charging to 400V
of DC/DC output(Module side voltage
and current is limited by DC/ DC circuit)
ARK 7.6XH-A1
IFpP/41/150/102/[(1P16S)3S]
M/-10+50/90
constant current 6A charging to 650V
of DC/DC output(Module side voltage
and current is limited by DC/ DC circuit)
ARK 10.2XH-A1
IFpP/41/150/102/[(1P16S)4S]
M/-10+50/90
constant current 8A charging to 650V
of DC/DC output(Module side voltage
and current is limited by DC/ DC circuit)
ARK 12.8XH-A1
IFpP/41/150/102/[(1P16S)5S]
M/-10+50/90
constant current 10A charging to 650V
of DC/DC output(Module side voltage
and current is limited by DC/ DC circuit)
ARK 15.3XH-A1
IFpP/41/150/102/[(1P16S)6S]
M/-10+50/90
constant current 12A charging to 650V
of DC/DC output(Module side voltage
and current is limited by DC/ DC circuit)
ARK 17.9XH-A1
IFpP/41/150/102/[(1P16S)7S]
M/-10+50/90
constant current 13A charging to 650V
of DC/DC output(Module side voltage
and current is limited by DC/ DC circuit)
ARK 20.4XH-A1
IFpP/41/150/102/[(1P16S)8S]
M/-10+50/90
constant current 15A charging to 650V
of DC/DC output(Module side voltage
and current is limited by DC/ DC circuit)
ARK 23.0XH-A1
IFpP/41/150/102/[(1P16S)9S]
M/-10+50/90
constant current 17A charging to 650V
of DC/DC output(Module side voltage
and current is limited by DC/ DC circuit)
ARK 25.6XH-A1
IFpP/41/150/102/[(1P16S)10
S]M/-10+50/90
constant current 19A charging to 650V
of DC/DC output(Module side voltage
and current is limited by DC/ DC circuit)
Appendix I
LED indication Control Mechanism
LED light definition
Status
Items
SOC indication
RUN/ALM
Remark
LED1
LED2
LED3
LED4
LED5
Charge
SOC
0%-25%
(t=1S)
RUN/ALM light
on and one SOC
lights flicker
26%-50%
(t=1S)
51%-75%
(t=1S)
76%-99%
(t=1S)
100%
Discharge
SOC
100%-76%
75%-51%
50%-26%
25%-5%
5%-0%
(t=1S)
RUN/ALM light
flicker
Idle
100%-76%
75%-51%
50%-26%
25%-5%
5%-0%
(t=1S)
RUN/ALM light
flicker
Protection
Cell charge
overvoltage
alarm
SOC indicates current remaining
capacity
(t=1S)
RUN/ALM light
flicker green
Cell charge
overvoltage
protection
(t=1S)
RUN/ALM light
flicker green
Charge
total
voltage
overvoltage
alarm
(t=1S)
RUN/ALM light
flicker green
Charge
total
voltage
overvoltage
protection
(t=1S)
RUN/ALM light
flicker green
Charge and
discharge
over current
alarm
(t=1S)
RUN/ALM light
flicker green

Protection
Charge and
discharge
over current
protection
(t=1S)
RUN/ALM light
flicker green
Charge and
discharge
over current
hardware
protection
(t=1S)
RUN/ALM light
flicker green
Charge and
discharge
high
temperatur
e alarm
(t=1S)
RUN/ALM light
flicker green
Charge and
discharge
high
temperatur
e protection
(t=1S)
RUN/ALM light
flicker green
Charge and
discharge
low
temperatur
e alarm
(t=1S)
RUN/ALM light
flicker green
Charge and
discharge
low
temperatur
e protection
(t=1S)
RUN/ALM light
flicker green
Cell
discharge
Under-
voltage
alarm
(t=1S)
RUN/ALM light
flicker green
Cell
discharge
under
voltage
protection
(t=1S)
RUN/ALM light
flicker green
Discharge
total
voltage
under
voltage
alarm
(t=1S)
RUN/ALM light
flicker green
Discharge
total
voltage
under
voltage
protection
(t=1S)
RUN/ALM light
flicker green
Protection
Charge and
discharge
Over
current
hardware
protection
SOC indicates current remaining
capacity
(t=1S)
RUN/ALM light
flicker green
Ambient
temperatur
e over-
temperatur
e alarm
(t=1S)
RUN/ALM light
flicker green
Ambient
temperatur
e over-
temperatur
e protection
(t=1S)
RUN/ALM light
flicker green
Cell voltage
difference is
too large
alarm
(t=1S)
RUN/ALM light
flicker green
Cell voltage
difference is
too large
protection
(t=1S)
RUN/ALM light
flicker green
Cell
temperatur
e difference
is too large
alarm
(t=1S)
RUN/ALM light
flicker green
Cell
temperatur
e difference
is too large
protection
(t=1S)
RUN/ALM light
flicker green
Cell rapid
over voltage
protection
(t=1S)
RUN/ALM light
flicker green
Battery pack
over voltage
alarm
(t=1S)
RUN/ALM light
flicker green
Battery pack
over voltage
protection
(t=1S)
RUN/ALM light
flicker green
Battery pack
under
voltage
alarm
(t=1S)
RUN/ALM light
flicker green
Battery pack
under
voltage
protection
(t=1S)
RUN/ALM light
flicker green
31 32

34
33
Protection
Low
temperatur
e charging
current limit
non-
response
protection
SOC indicates current remaining
capacity
(t=1S)
RUN/ALM light
flicker green
Fault,
personnel
handling
required
Precharged
short circuit
(t=1S)
RUN/ALM light
flicker red
Precharged
overtime
circuit
(t=1S)
RUN/ALM light
flicker red
Interior
CAN
communicat
ion failure
(t=1S)
RUN/ALM light
flicker red
Insulation
fault alarm
(t=1S)
RUN/ALM light
flicker red
UART
communicat
ion timeout
alarm
(t=1S)
RUN/ALM light
flicker red
Communica
tion timeout
alarm with
hybrid
inverter
(t=1S)
RUN/ALM light
flicker red
Abnormal
output port
voltage
(t=1S)
RUN/ALM light
flicker red
BMU
encoding
timeout
(t=1S)
RUN/ALM light
flicker red
Cell failure
protection
(t=1S)
RUN/ALM light
flicker red
Main circuit
failure
protection
(t=1S)
RUN/ALM light
flicker red
EEPROM
fault
protection
(t=1S)
RUN/ALM light
flicker red
Front-end
chip failure
protection
(t=1S)
RUN/ALM light
flicker red
EEPROM
calibration
parameter
failure
(t=1S)
RUN/ALM light
flicker red
Fault,
personnel
handling
required
Current
sampling
failure
SOC indicates current remaining
capacity
(t=1S)
RUN/ALM light
stays red
Total voltage
sampling
failure
(t=1S)
RUN/ALM light
stays red
The
motherboar
d power
supply is
abnormal
(t=1S)
RUN/ALM light
stays red
Insulation
resistance
protection
(t=1S)
RUN/ALM light
stays red
Hardware
reference
voltage
abnormal
failure
(t=1S)
RUN/ALM light
stays red
Shenzhen Growatt New Energy Co., Ltd
[phone]
www.ginverter.com
T
E
W
[e-mail]
4-13/F,Building A,Sino-German(Europe) Industrial Park,
Hangcheng Ave,Bao’an District, Shenzhen, China