SunSynk SSLB1 User manual

V3.0 –03/07/2021
Power Lite Lithium Battery System
SSLB1
USER GUIDE
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 / [email protected]m / www.globaltechhk.com

Index
1. INTRODUCTION.......................................................................................................................................3
2. GENERAL SAFETY.....................................................................................................................................3
3. PRODUCT SPECIFICATIONS AND FUNCTIONS ............................................................................................4
3.1. DIMENSIONS AND WEIGH ..............................................................................................................................4
3.2. SPECIFICATIONS...........................................................................................................................................4
3.3. SYSTEM INTRODUCTION ................................................................................................................................5
4. BATTERY OPERATION AND COMMISSIONING..............................................................................................6
4.1. SYSTEM POWER ON.....................................................................................................................................6
4.2. SYSTEM POWER OFF....................................................................................................................................6
4.3. SLEEP AND WAKE UP FUNCTION.......................................................................................................................6
4.4. BUZZER FUNCTION .......................................................................................................................................6
4.5. SYSTEM STATUS INSTRUCTION ........................................................................................................................7
4.6. LED TWINKLE STATUS...................................................................................................................................7
4.7. SOCINDICATOR...........................................................................................................................................8
5. TROUBLESHOOTING ...................................................................................................................................8
6. MAINTENANCE...........................................................................................................................................8

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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 guidelines 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.
2. GENERAL 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 the safety precautions presented in the Installation Manual.
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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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
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
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

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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%）
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
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

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4. 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.
4.1. System Power ON
◼Installation (including DC cable, communication wire connection and dialer switch) is properly down.
◼Press Power Switch button, green LED should be twinkling and then turn into function mode. (system
status can be red from LED signal, as shown below)
4.2. 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
4.3. 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
4.4. Buzzer function
◼0.25s per 1s in case of fault
◼0.25s per 2S during protection

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4.5. 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.)
4.6. LED Twinkle Status
Status
On
Off
Twinkle 1
0.25S
3.75S
Twinkle 2
0.5S
0.5S
Twinkle 3
0.5S
1.5S

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4.7. SoC indicator
5. 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.
6. MAINTENANCE
The Power Lite SSLB1 does not require maintenance itself, 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.