Sungrow SBP4K8 User manual

SBP4K8-UEN-Ver11-201709 Version: 1.1
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User Manual
SBP4K8
Rechargeable lithium ion battery

I
About this manual
This manual is intended for the SBP4K8, the Sungrow 4.8 kWh battery. This manual
does not include all information about the system (i.e. the inverter), just the battery.
You can get the additional information about other devices at
en.sungrowpower.com or at the webpage of the device manufacturer.
Purpose
This manual provides information about the specification, use, installation, and
maintenance of the battery, which is used with the SH series hybrid inverter from
Sungrow Power Supply Co., Ltd.
Target group
This manual is targeted for the following audience:
Qualified personnel. Some tasks that are described in this manual, such as
installation, maintenance, assembly and dismantling, should be performed only
by qualified personnel, except for simple tasks such as visual inspection.
End-user. End-users can perform the aforementioned simple tasks, but not those
requiring technical expertise.
How to use this manual
Please read this manual and other related documents carefully before using this
product, particularly for technical work. Carefully store this manual in a location that
is easy to find and ensure that it is available at all times.
The contents of this manual and the use of pictures, logos, symbols, etc. are all
owned by Sungrow Power Supply Co. Ltd., with all rights reserved for copyright. No
part of the contents of this company may be reproduced without the prior written
permission of the company.
Symbols
Important instructions contained in this manual should be followed during
installation, operation and maintenance of the battery. Important notes use the
following symbols to highlight them.

II
Table 0-1 Safety and informative document symbols
Symbol Explanation
Indicates a hazard with a high level of risk that, if not avoided,
will result in death or serious injury.
Indicates a hazard with a medium level of risk that, if not
avoided, could result in death or serious injury.
Indicates a hazard with a low level of risk that, if not avoided,
could result in minor or moderate injury.
Indicates a situation that, if not avoided, could result in
equipment or property damage.
Indicates additional information, emphasized contents or tips
that may be helpful, e.g. to help you solve problems or save
time.
Abbreviation
BMS: Battery Management System
CAN: Controller Area Network
CC: Constant Current
CP: Constant Power
CV: Constant Voltage
DOD: Depth of Discharge
MCCV: Maximum Charge Current Value
MDCV: Maximum Discharge Current Value
RH: Relative Humidity
SOC: State of Charge
SOH: State of Health
Terms
C-Rate: The term for expressing
using current or power. For instance,
if the battery’s nominal capacity is 94
Ah, 1.0 C discharge means
discharging the battery with a
current of 94 A.

III
Contents
About this manual...........................................................................I
1Safety instructions...................................................................1
1.1Description of symbols on the battery ..........................................................1
1.2Notices for safe use ...............................................................................................2
1.3Emergency situations...........................................................................................3
1.3.1 Leaking batteries.......................................................................................................3 
1.3.2 Fire ..................................................................................................................................4
1.3.3 Wet batteries...............................................................................................................5
1.3.4 Damaged batteries...................................................................................................5
1.4Skills of qualified personnel...............................................................................6
2Product description .................................................................7
2.1Indicator and ports................................................................................................7
2.2Dimensions ..............................................................................................................8
2.3Nameplate................................................................................................................8
2.4Battery management system (BMS)............................................................. 10
3Transport and storage ...........................................................11
3.1Safety handling procedure.............................................................................. 11
3.2Transport................................................................................................................ 11
3.2.1 Transporting the battery ..................................................................................... 11
3.2.2 Inspecting for transport damage..................................................................... 12
3.3Storage ................................................................................................................... 12
4Installation process................................................................14
5Mechanical installation .........................................................15
5.1Delivery contents................................................................................................ 15
5.2Selecting the installation location................................................................ 16
5.3Installing the battery .........................................................................................16
5.3.1 Free-standing installation................................................................................... 17

IV
5.3.2 Wall-mountable installation............................................................................... 19
6Electrical connection .............................................................22
6.1Grounding............................................................................................................. 23
6.2Communication connection .......................................................................... 24
6.3DC connection..................................................................................................... 26
7Adding new batteries to an existing system ........................29
8Commissioning.......................................................................31
9Troubleshooting and maintenance ......................................32
9.1Troubleshooting ................................................................................................. 32
9.2Maintenance ........................................................................................................ 33
10Appendices.............................................................................34
10.1Technical data...................................................................................................... 34
10.2Active cell balancing ......................................................................................... 35
10.3Exclusion of liability........................................................................................... 36
10.4Contact information .......................................................................................... 37

1
1 Safety instructions
This section describes the product's safety information. Before proceeding with
unloading, unpacking, handling, installation and operation, read and fully
understand the following details. Always follow the guidelines.
1.1 Description of symbols on the battery
Please wear safety goggles when working on the battery system.
Electric shock hazard
Serviced by qualified personnel only. Out of reach from children.
Explosive materials
Corrosive substances.
Do not contact eyes, skin or clothes. If you are inadvertently
exposed, rinse with water and seek medical attention immediately.
Serious injury may occur due to the heavy weight. Be careful when
lifting; bending from the knees and using two people or a
mechanical lifting device.
No open flames
Do not expose to flame, incinerate, puncture, or impact
Do not dispose in trash.
Compacting a lithium ion battery is dangerous as it can explode.
Please recycle this lithium ion battery. Do not discard.

1 Safety SBP4K8 user manual
2
1.2 Notices for safe use
Read all safety instructions carefully prior to any work and observe them at all times
when working on or with the battery. Failure to observe the precautions described
in this section can cause serious injury to persons or damage to property.
General information
Risk of explosion
Do not subject the battery to any strong force.
Do not mechanically damage the battery (pierce, deform, strip down, etc.)
Do not heat the battery or dispose of the battery in a fire.
Do not install the battery in potentially explosive environments.
Risk of fire
Do not expose the battery to temperatures in excess of 45°C.
Do not place the battery near a heat source, such as direct sunlight, a
fireplace, a thermally uninsulated wall exposed to sunlight, hot water, or a
heater.
Keep sources of ignition such as sparks, flames, and smoking materials
away from the battery.
Risk of electric shock
Do not disassemble the battery.
Do not handle a wet battery or use wet tools.
Do not soak the battery in water or expose it to moisture or liquids.
Keep the battery away from children and animals.
Wear suitable clothing, guards and gloves to prevent you from direct
contact with the DC voltage.
Use insulated tools during working with battery.
Set aside metal jewelry before working on the DC circuit.

SBP4K8 user manual 1 Safety
3
Battery handling information
Comply with local standards for use with the battery.
Any man-made damage will void the limited warranty for the battery. Handle the
battery with care to protect it from damage.
Use the battery only as intended and designed.
The battery must only be installed at a suitable location.
Ground the battery completely before use.
Do not use the battery if it is defective, appears cracked, broken or damaged, or
fails to operate.
Do not use the battery SBP4K8 together with other types of batteries.
Do not pull, drag or step on the battery.
Do not leave any foreign objects inside the battery.
Do not repair or modify the battery. It is not user serviceable.
Do not pull out any cables when the battery is powered on.
Do not damage the sheath of cables, wire harness and connectors.
While the battery is charged, used and stored, keep it away from materials that
are prone to electric discharge, including static discharge.
Keep the battery away from babies and children to avoid any accidents. If
younger children use the battery, their guardians should explain the proper
handling method and precaution before using.
Cover terminals with insulating tape before proper disposal.
1.3 Emergency situations
1.3.1 Leaking batteries
Abuse/misuse/damage of the battery may cause increasing of internal pressure in
the battery cells. It may result in the electrolyte venting. In the event that battery
electrolyte is released:
Do not enter the room under any circumstance.
Avoid contact with the leaking liquid or gas.

1 Safety SBP4K8 user manual
4
If one is exposed to the leaking substance, follow the suggestions below to
minimize the chance of injury:
Inhalation: Evacuate the contaminated area, and seek medical aid.
Eye contact: Rinse eyes with large amounts of water using emergency eye wash
bottle for at least 15 minutes, and seek medical aid immediately.
Skin contact: Wash the affected area thoroughly with plenty of water for at least
15 minutes. If possible, remove or saturate contaminated clothing with water.
Seek medical aid if the patient is distressed.
Ingestion: Induce vomiting, and seek medical aid immediately.
Wipe out the contacted area with a sponge or cloth that is soaked in water until you
obtain medical aid. These materials can damage skin and eyes, causing blindness.
1.3.2 Fire
Fire may occur with the battery despite its careful design. Likewise, a fire near the
battery can cause it to catch fire.
Protective equipment
A respirator is not required during normal operations.
In the event of a fire, hazardous fumes including carbon monoxide, carbon dioxide,
and/or various hydrocarbons may be emitted. To comply with the Personal
Protective Equipment Directive (89/686/EEC), use a full-face self-contained
breathing apparatus (SCBA) with full protective gear during fire fighting.
Fire fighting
In the event of a fire, only qualified firefighters with appropriate
protective equipment are permitted to enter the room where the battery
is located.
Battery fires can take up to 24 hours to fully extinguish. Consider allowing
the system to burn. Smoke indicates that the battery is still burning.
Always note that there is a risk of the battery re-igniting.
Proceed as follows for firefighting.
1. Shut off any connected power system or electronics such as the battery,
battery isolator, PV DC isolator(s), AC isolator, solar supply main switch and
normal supply main switch.