SunSynk SSLB1 User manual

V7.0 – 03/22/2021
Power Lite Lithium Battery System
SSLB1
INSTALLATION MANUAL
Global Tech China Ltd, 3-Floor, Wai Yip Industrial Building.171 Wai Yip Street,
Kwun Tong, Kowloon, Hong Kong.
Tel: [phone] Fax: [phone]
www.sunsynk.com / [e-mail] / www.globaltechhk.com

Index
1. INTRODUCTION ......................................................................................................................................... 4
2. SAFETY ...................................................................................................................................................... 5
2.1. T
RANSPORTATION
.......................................................................................................................................... 5
2.2. I
NSTALLATION
L
OCATION
................................................................................................................................. 5
2.3. S
TORAGE
..................................................................................................................................................... 5
2.4. G
ENERAL
S
AFETY
........................................................................................................................................... 5
2.5. H
ANDLING
................................................................................................................................................... 6
2.6. D
AMAGED
B
ATTERY
....................................................................................................................................... 6
2.7. F
IRE
............................................................................................................................................................ 6
2.8. Q
UALIFIED
P
ERSONNEL
................................................................................................................................... 6
3. SPECIFICATIONS AND FUNCTIONS ............................................................................................................. 7
3.1. D
IMENSIONS AND
W
EIGH
................................................................................................................................ 7
3.2. S
PECIFICATIONS
............................................................................................................................................. 8
3.3. S
YSTEM
I
NTRODUCTION
.................................................................................................................................. 9
4. INSTALLATION ......................................................................................................................................... 10
4.1. I
NSTALLATION
L
OCATION
E
NVIRONMENT
.......................................................................................................... 10
4.2. F
RONT
V
IEW
............................................................................................................................................... 11
4.3. R
ECOMMENDED
DC B
REAKER
........................................................................................................................ 12
4.4. DC C
ABLE
R
EQUIREMENTS
............................................................................................................................. 12
4.5. DC C
ABLE
M
OUNTING
.................................................................................................................................. 12
4.5.1 M
ATERIAL
L
IST
.................................................................................................................................................. 12
4.5.2 S
TEPS
.............................................................................................................................................................. 12
4.6. M
ASTER
-S
LAVE
C
ONFIGURATIONS
................................................................................................................... 13
4.6.1 S
INGLE
U
NIT
..................................................................................................................................................... 13
4.6.2 M
ULTI
-U
NITS
.................................................................................................................................................... 13
4.7. C
OMMUNICATION
........................................................................................................................................ 16
4.7.1. D
EFINITION OF
V
OLTAGE
S
AMPLING
C
ONNECTOR
................................................................................................... 16
4.7.2. D
EFINITION OF
T
EMP
. S
AMPLING
C
ONNECTOR
....................................................................................................... 16
4.7.3 P
ORT
RS485
AND
RS232 ................................................................................................................................... 17
5. BATTERY OPERATION AND COMMISSIONING ............................................................................................. 17
5.1. S
YSTEM
P
OWER
ON ..................................................................................................................................... 17
5.2. S
YSTEM
P
OWER
OFF .................................................................................................................................... 18
5.3. S
LEEP AND WAKE UP FUNCTION
....................................................................................................................... 18
5.4. B
UZZER FUNCTION
....................................................................................................................................... 18
5.5. S
YSTEM
S
TATUS
I
NSTRUCTION
........................................................................................................................ 18
5.6. LED T
WINKLE
S
TATUS
.................................................................................................................................. 19

5.7. S
O
C
INDICATOR
........................................................................................................................................... 19
6. MONITORING ............................................................................................................................................. 20
7. TROUBLESHOOTING ................................................................................................................................... 20
8. MAINTENANCE ........................................................................................................................................... 20
9. WARRANTY ................................................................................................................................................ 20
9.1. W
ARRANTOR
.............................................................................................................................................. 20
9.2. P
RODUCTS
................................................................................................................................................. 20
9.3. P
RODUCT
W
ARRANTY
.................................................................................................................................. 21
9.4. P
ERFORMANCE
W
ARRANTY
........................................................................................................................... 21
9.5. W
ARRANTY
O
BLIGATIONS
............................................................................................................................. 21
9.6. P
RODUCT
S
UITABILITY
.................................................................................................................................. 23
9.7. W
ARRANTY
T
ERM
........................................................................................................................................ 23
9.8. P
ERSONS
E
NTITLED TO
M
AKE
W
ARRANTY
C
LAIMS
.............................................................................................. 23
9.1. C
LAIM
N
OTICE
............................................................................................................................................ 23
9.10. W
ARRANTY
L
IMITATIONS
............................................................................................................................ 24
9.10.1. E
XCLUDED
W
ARRANTY
C
LAIMS
......................................................................................................................... 24
9.10.2. I
NTERNET
C
ONNECTIVITY
.................................................................................................................................. 24
9.11. G
ENERAL
................................................................................................................................................. 25

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1. INTRODUCTION
Thank you for choosing Sunsynk’s energy storage system.
The energy storage module includes lithium-ion rechargeable batteries with 5.12kWh capacity, and the
controller enables a central of multiple modules.
This manual provides information regarding safety precautions to prevent possible accidents and how to
use the product. Please read this manual carefully before use for safety and keep this manual handy for
reference.
Some main features of this product are:

Long Life Span
The battery can be expected to remain serviceable for more than 10 years, considering that it is charged
and discharged once in a day at room temperature (25
°C
).

Stable
Olivine-type lithium iron phosphate batteries with excellent thermal stability and storage characteristics
are used in this product. The module also incorporates a self-monitoring function for the detection of any
abnormalities in energy storage.

Compact Design
The height is nicely designed in 3U, in favour of standard industrial applications.

High Scalability
Multiple energy storage modules can be connected in parallel, and the capacity can be customized
according to the intended use.

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2. SAFETY
Sunsynk's products are designed with full consideration of safety. However, all electrical appliances can
be dangerous if used inappropriately; it can cause a fire or electric shock that leads to severe injury or
death. For your protection, please read these safety precautions thoroughly.
2.1. Transportation
Lithium Ferro Phosphate Batteries are classed as Dangerous Goods (DG) Class 9 UN3480. It is forbidden
to subject the product to serious vibration and shock during transportation.
2.2. Installation Location
This battery set is to be installed only indoors.

The product should not be exposed the product to temperatures above or below the ambient
temperature rating specified in this manual.

The battery should not be installed in direct sunlight.
2.3. Storage
If the system is not placed to use, the system must be properly stored. Otherwise, Sunsynk shall not be
liable for any issues.

It should be stored in 60% SoC status.

It should be stored in a ventilated environment, Temp. < 35°C, RoH <65%.

It should be stored avoiding humid condition.

It should be stored in place where professionals can monitor by the system.
2.4. General Safety
Definitions of Symbols:
Below are symbols used in this manual and the unit.
Please read through the following definitions before reading the manual.
Warning If you ignore these instructions, it can lead to a fire or electric shock
causing serious injury or death.
Caution If you ignore these instructions, it can lead to electric shock or other
accidents causing injury or harm to nearby products.

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
Wear insulating gloves and protection glasses during installation and connection of the set to prevent
electric shock or other injuries.

Water and/or foreign objects inside the module are not allowed.

The product should not be disassembled. Opening and modifying the set can cause a fire or electric
shock.

The cables should not be damaged. If you damage a cable, it can cause a fire or electric shock.

The battery should not be punch a hole in the product.

DO NOT touch with wet hands. If you touch the equipment with wet hands, it may cause electric shock.

The vent should not be covered. If the vent is covered, the product can overheat and cause a fire.

Keep the product away from children and animals.

DO NOT put anything, stand or sit on the battery set. If you put anything on the set, it may fall and
cause injury.
2.5. Handling

The battery should only be used as instructed.

DO NOT use the battery if it seems broken or damaged.

The battery is non-user-serviceable and should not be opened for repair.

Handle battery with care when installing or transporting.

Chemicals should not be used to clean the battery.
2.6. Damaged Battery
A damaged battery should not be used and should be returned to Sunsynk or properly discarded via a
recycling facility. Leaking electrolytes can cause skin irruption and chemical burns, so contact should be
avoided.
Eye Flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid.
Skin Remove contaminated clothes and rinse skin with plenty of
water or shower for 15 minutes. Get medical aid.
Inhalation Remove from exposure and move to fresh air immediately. Use
oxygen if available.
Ingestion Give at least two glasses of milk or water. Induce vomiting
unless the patient is unconscious. Call a physician.
2.7. Fire
If the battery catches fire, a dry agent extinguisher must be available and used. DO NOT use water.
Evacuate the area and call emergency services. Toxic gas may be produced if the battery catches fire.
2.8. Qualified Personnel
Be aware that only qualified professionals should install the product.

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A qualified person is one who has skills and knowledge related to the construction and operation of the
electrical equipment and has received safety training on the hazards involved. It is authorized to energise,
ground, and tag equipment systems and circuits in accordance with established safety procedures. The
inverter and end-using system may only be commissioned by qualified personnel.
3. SPECIFICATIONS AND FUNCTIONS
3.1. Dimensions and Weigh
SSLB1 dimensions are presented in Figure 1. It is well designed for 19-inch cabinet.
Power Lite Lithium Battery System SSLB1
Depth 530mm
Width 440mm
Height 132mm
Weight 48kg
Figure 1 - SSLB1 dimensions

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3.2. Specifications
Power Lite Lithium Battery System SSLB1
Cell Type Lithium Ferro Phosphate (LifePO4 or LFP)
Nominal Operating Voltage 51.2V
Nominal Capacity 100Ah / 5.12kWh
Rated DC Output Power 2.56kW
Depth of Discharge (DoD) 100%
Usable Capacity 5.12kWh
Packing 1P16S
IP Rating IP40
Minimum Operating Voltage 44.8V
Maximum Operating Voltage 57.6V
Standard Charging Current 50A
Max. Continuous Charging Current 50A
Standard Discharging Current 50A
Max. Continuous Discharging Current 100A (1C, 25°C ± 2°C)
Max. Pulse Discharging Current 200A（2C, 30S, 25°C ± 2°C SOC≥40%）
Max. DC Charge Power 2.56kW
Max. DC Discharge Power 5kW
Standard Charging Method 0.5C CC to 57.6V, CV at 57.6V till current is 0.05C
Min. Operating Temperature (no derating) Charging: 0°C / Discharging: -20°C
Max. Operating Temperature (no derating) Charging: 50°C / Discharging: 55°C
Operating ROH 20% ~ 80%
Storage Temperature -20 ~ 50°C
Self-discharging rate ≤5% (25°C， 50% SoC)
SoC @ end of product line 40%
Insulation Resistance >100MΩ
Voltage Difference in each module ≤20mV
Inner Resistance of single Cell 0.34 ± 0.05mΩ (fresh cell 30 ~ 40% SoC)
Altitude Below 2000m
Weight 48kg
Dimensions 440 x 530 x 132mm (not include connector,
MSD and
other parts)
Expected Life @ 25°C Greater than 10 years if used as per warranty terms

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3.3. System Introduction
SSLB1 Energy Storage System is consisted of 2 sets of M025100-A modules manufactured by Sunsynk.
In each M025100-A, there are 8 pcs of 100 Ah LFP cell originated from CATL. The overall system also
provides standard communication port, i.e. CAN and RS485, to monitor the working status and
communicate with upper machine as well as the Power Conversion System (PCS) in front. The system
schematic drawing is presented in Figure 2.
Figure 2 - System schematics
The batteries are completely compatible with Sunsynk Hybrid Inverters listed below:
SUNSYNK-3.6K-SG01LP1 IP65
SUNSYNK-3.6K-SG02LP1 IP65
SUNSYNK-5.5K-SG01LP1 IP65
SUNSYNK-8.8K-SG02LP1 IP65
SUNSYNK-6K-SG02LP1
SUNSYNK-7.6K-SG02LP1
SUNSYNK-8K-3P-SG02LP1
SUNSYNK-10K-3P-SG02LP1
SUNSYNK-12K-3P-SG02LP1

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4. INSTALLATION
4.1. Installation Location Environment
The location of the battery should be in accordance with operating temperature range and IP rating
specified in the Specification section of this manual. Although the batteries run at a low temperature,
proper airflow around the batteries is recommended.
When installing the set, the following conditions should be met:

DO NOT install the product in a completely closed area with no air-conditioning, it can overheat and
cause a fire.

DO NOT place in direct sunlight or near a source of heat. This can cause deformation, a breakdown,
or a fire. Pay extra attention when you place the system near windows.

The battery must not be set where excessive oil smoke, steam, moisture or dust is contained in the
air.

Ensure that the batteries are installed in a clean environment with minimal dust.

Avoid installing the set near the ocean. If unavoidable, appropriate air filtration should be used to
prevent salt air in contact with the batteries.

For proper air circulation to dissipate heat, allow a clearance of approximately 30 cm to the sides of
the battery.

DO NOT install the set near heat sources.
Figure 3 – Minimum clearance.

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If the batteries are being installed in areas of extreme humidity levels, take the following precautions:

A humidity control agent is must be placed inside the enclosure, with controlled airflow to expel moist
air, and/or, the system can be installed in proper room with humidity control.
The SSLB1 battery is well designed to be installed in a 19-inch cabinet. If the battery is going to be
installed outdoors, a suitable IP54 or above enclosure must be used.
In Australia, please refer to AS/NZS 5139 for the installation requirements. This product can be installed
under Section 5 of AS/NZS 5139 for Preassembled BS products.
4.2. Front View
Figure 4 - Front view of the SSLB1
Item Name Model Remarks
1 SOC LED x4
2 Alarm LED
3 RUN LED
4 Dialer
5 Communication port RJ11 RS232 To upper machine
6 Communication port *2 RJ45 CAN To PCS RS485 Internal Connection
7 Reset Waken system from malfunction status
8 Dry Contact
9 Power On/Off Switch
10 Port Negative x2 PSR6XAB Black 5.7， 25mm2
11 Port Positive x2 PSR6XBB Orange 5.7， 25mm2
12 GND M6 Yellow-Green， 10AWG

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4.3. Recommended DC Breaker
An overcurrent protection and isolation device between battery and inverter. The following circuit
breaker models (purchased separately) are supported:
Circuit Breaker Model Rating Certificate
Nader NDB1-125 100 A CCC, CE, CB, TUV, UL1077
NOTE: The circuit breaker should operate positive and negative conductors simultaneously.
4.4. DC Cable Requirements
Size Outer Diameter Max. Voltage Max. Current
21-33 mm² 10-12 mm 1000 V 120 A
4.5. DC Cable Mounting
4.5.1 Material List
Plug Isolation Cap Tail-hood
4.5.2 Steps
DC cable must be a multicore wire.
Caution

Turn off system before doing electrical connection

Ensure all the cables are in electrical safe condition

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1.
Put wire through isolation cap and Tail-Hood.
2.
Swipe outer isolation layer of DC cable.
3.
The is used for the positive, and the negative for the
black contact. The end of the cable is bunched at the
terminal using a wire clamp.
4.
Tighten the isolation cap and plug contact.
5.
Put the positive and negative plug on to the system and tighten it.
6.
Use isolation cap for unused DC plug.
4.6. Master-Slave Configurations
The Master Pack and The Slave Pack, both with the same model (SSLB1), can be used as single unit as
well as multi-units (in parallel) mode. The customers must inform supplier if they intend to connect more
batteries (multi-units mode), so one can double-check master-slave settings, because DIP address
configuration is different if the number of batteries in parallel changes. The Master Pack can be used
individually, but Slave Pack cannot be used individually. Each battery can be set as the master or the
slave by changing DIP address configuration. Please refer to the attached best practice guide document.
4.6.1 Single Unit
If you are going to use only a single battery, it is only necessary to connect the positive and negative
cables.
Figure 5 - Single unit connection
4.6.2 Multi-Units

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You can add more batteries in parallel to increase the storage capacity. However, no cabinets or racks
are supplied with the battery.
In order to connect multi-units, some steps need to be followed. In this example, it is considered that the
user will connect up to four batteries.
1.
Connect all positive terminals;
2.
Connect all negative terminals;
3.
Connect all the batteries to the same grounding point;
Figure 6 - Multi-Units Connection
4.
In order to set the master and slaves, it is necessary to set up the DIP switches (ON or OFF).
Follow the settings presented in Figure 8 for each case.

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Figure 7 - Dial diagram
Figure 8 – DIP switches configuration for up to four batteries paralleled.
5.
It is also necessary to connect the CAN/RS485 cables between the units.
Figure 9 – CAN/RS485 connections for up to four batteries paralleled.

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4.7. Communication
4.7.1. Definition of Voltage Sampling Connector
PIN Wire No. Signal Wire size (mm²） Remarks
1 B0 Signal 0.3 Cell #1-
2 B2+ Signal 0.3 Cell #2+
3 B4+ Signal 0.3 Cell #4+
4 B6+ Signal 0.3 Cell #6+
5 B8+ Signal 0.3 Cell #8+
6 B10+ Signal 0.3 Cell #10+
7 B12+ Signal 0.3 Cell #12+
8 B14+ Signal 0.3 Cell #14+
9 B16+ Signal 0.3 Cell #16+
10 NC NC NC NC
11 B1+ Signal 0.3 Cell #1+
12 B3+ Signal 0.3 Cell #3+
13 B5+ Signal 0.3 Cell #5+
14 B7+ Signal 0.3 Cell #7+
15 B9+ Signal 0.3 Cell #9+
16 B11+ Signal 0.3 Cell #11+
17 B13+ Signal 0.3 Cell #13+
18 B15+ Signal 0.3 Cell #15+
4.7.2. Definition of Temp. Sampling Connector
PIN Wire No. Signal Wire size (mm²) Remarks
1 T1+ Signal 0.3 Temp. #1+
2 T2+ Signal 0.3 Temp. #2+
3 T3+ Signal 0.3 Temp. #3+
4 T4+ Signal 0.3 Temp. #4+
5 T1- Signal 0.3 Temp. #1-
6 T2- Signal 0.3 Temp. #2-
7 T3- Signal 0.3 Temp. #3-
8 T4- Signal 0.3 Temp. #4-

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4.7.3 Port RS485 and RS232
Figure 5 - CAN/RS485 and RS232 connections
Description
CAN
Pin 4: CAN-H
Pin 5: CAN-L
Pin 1, 3, 6, 7, 8: NC
RS485
Pin 1: RS485B
Pin 2: RS485A
Pin 3: GND
Pin 6: GND
Pin 7: RS485B
Pin 8: RS485A
Pin 4, 5: NC
RS232
Pin 3: BMS transmit; Computer receiver
Pin 4: BMS receiver; Computer transmit
Pin 5: GND
Pin 1, 2, 6: NC
5. BATTERY OPERATION AND COMMISSIONING
Before turning on the batteries, please check the installation:

Check the polarities of the batteries.

Check if there are no damaged cables.

Check for local installation compliance.

Check if appropriate air flow is provided to the set.
5.1. System Power ON

Installation (including DC cable, communication wire connection, dialer switch, and circuit breaker) is
properly down.

Press Power Switch button and then the external circuit breaker, the green LED should be twinkling
and then turn into function mode. (system status can be red from LED signal, as shown below)

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5.2. System Power OFF
Attention: It must be confirmed that the system is off before taking off DC cables.
Press Power Switch button
Green LED should be twinkling and then turn into stop mode
5.3. Sleep and wake up function
Number Sleep Condition Wake up Condition Mark
1 Forced sleep by upper computer Reset button
2 Forced sleep by soft switch Soft switch,
Only those equipped with
soft switch can pass the
call Wake up
3
Total Voltage is lower than 48V
or monomer is lower than 2.8V,
and continuous No charge and
discharge current for 4 hours,
no communication goes to sleep
Reset button,
Soft switch,
Communication,
Charging
Only those equipped with
soft switch can pass the
call
Wake up
5.4. Buzzer function

0.25s per 1s in case of fault

0.25s per 2S during protection
5.5. System Status Instruction
There are 6 LED indicator, 4 green LED gives status of SoC, 1 red Alarm LED and 1 green
Running Status LED (indicating charging, discharging etc.)

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5.6. LED Twinkle Status
Status On Off
Twinkle 1 0.25S 3.75S
Twinkle 2 0.5S 0.5S
Twinkle 3 0.5S 1.5S
5.7. SoC indicator

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6. MONITORING
The battery does not include a monitoring system. However, the user can utilize the inverter’s
remote monitoring app.
7. TROUBLESHOOTING
The Power Lite SSLB1 battery set is designed as a lead-acid replacement energy storage solution to run
with most systems. Lithium batteries have a much higher density related to lead-acid batteries, and they
utilise the settings and protections built into the ancillary equipment, the BMS.
When the operation of the battery is outside limits, the BMS activates in order to provide safe operation.
During normal operation, there will be a voltage across the terminals of the batteries. If the BMS activates
its protection circuit, the battery should restart without external assistance once the fault is cleared. The
scenario where this may not occur is on low volt disconnect. In this case, the battery circuit breaker will
need to be turned off and on again to restart the BMS.
In rare cases in which the voltage does not recover, it is necessary to apply an external power source to
the battery output terminal, which will allow the battery to charge up above the BMS low voltage cut off.
Once the voltage rises above this point, the BMS will make the battery operate normally.
8. MAINTENANCE
The Power Lite SSLB1 is maintenance free, however as part of your overall system maintenance, some
verifications can be conducted.

Check LED indicators.

Check for any obstruction placed around the battery.

Check battery connections and cables for secure fitting or damage.

Check circuit breakers by turning them off and on again.
9. WARRANTY
9.1. Warrantor
Warrantor is Sunsynk Ltd, located at 3-Floor, Wai Yip Industrial Building, 171 Wai Yip Street, Kwun
Tong, Kowloon, Hong Kong S.A.R.
9.2. Products