SEPLOS PUSUNG 2 User manual

Shenzhen Seplos Technology Co,. Ltd
Please read this manual carefully before operating
and retain it for future reference.

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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This manual introduces PUSUNG designed by SEPLOS Technology. Please read this manual before installation of
the battery module and follow the instruction carefully during the assembly. Any confusion, please contact
SEPLOS Technology immediately for advice and clarification.
CONTENT
1. Safety Precautions.............................................................................................................................1
1.1 Precautions.............................................................................................................................. 1
1.2 Warning....................................................................................................................................1
2. Introduction...................................................................................................................................... 3
2.1 Features....................................................................................................................................3
2.2 Specifications........................................................................................................................... 4
2.3 Interfaces................................................................................................................................. 5
2.4 Cell Features...........................................................................................................................10
2.4.1 Specifications............................................................................................................... 10
2.5 Battery Management System................................................................................................ 11
2.5.1 BMS Functions............................................................................................................. 11
2.5.2 BMS Upper Computer System..................................................................................... 12
2.5.3 Compatible Inverters................................................................................................... 12
3. Installation.......................................................................................................................................13
3.1 Application............................................................................................................................. 13
3.2 Tools....................................................................................................................................... 14
3.3 Installation Process................................................................................................................ 14
3.3.1 Battery module assembly (cell to cell).........................................................................14
3.3.2 Battery module wiring (module to module/BMS).......................................................16
3.3.3 Battery pack wiring (Pack to pack)...............................................................................18
4. List................................................................................................................................................... 19
4.1 Packing list..............................................................................................................................19
4.2 Optional tools and accessories list.........................................................................................22

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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1. Safety Precautions
This section describes the safety information that must be observed when working with battery
packs. To prevent any damages, or personal injury, and to ensure the performance of the battery
packs, please read this section carefully and observe the safety precautions at all times.
1.1 Precautions
It is very important and necessary to read the user manual carefully before installing or using
the product. Failure to do so or to follow any of the instructions or warnings in this document
can result in electrical shock, serious injury or death, and could damage the battery, or
potentially rendering it inoperable.
If the battery pack is stored for long time, it is required to charge them every six months, and
the SOC should be no less than 90%.
Please recharged the battery pack within 12 hours, after fully discharged.
All the battery pack terminals must be disconnected before any maintenance.
Do not use cleaning solvents to clean battery pack.
Do not expose battery pack to flammable or harsh chemicals, or corrosive gases or liquids.
Do not paint any part of battery pack, include any internal or external components.
Do not expose the battery pack to direct sunlight for extended periods of time.
Do not connect battery pack with PV solar wiring directly.
Do not insert any foreign object into any part of the battery pack.
1.2 Warning
Do not touch the battery pack with wet hands.
Do not crush, drop or puncture the battery pack.

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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Always dispose of the battery pack according to local safety regulations.
Store and recharge the battery pack in a manner in accordance with this user manual.
Ensure reliable grounding.
Do not reverse the polarity when installing.
Do not short circuit the terminals, remove all jewelry items that could cause a short circuit before
installation and handling.
Disconnect battery from power or loads, and then power off battery before installation and
maintenance.
The battery packs should be not stacked more than specified numbers.
Continued operation of a damaged battery pack can result in dangerous situation.

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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2. Introduction
PUSUNG lithium iron phosphate battery pack is a household renewable energy storage solution
developed and produced by SEPLOS Technology. After fully installation, it is a low-voltage DC
battery system with an operating voltage of 48V, and works with a low voltage inverter to realize
the goal of energy storage for home application.
PUSUNG battery pack supports parallel connection to expand capacity, which can meet various
capacity requirements. It has built-in battery management system(BMS), which can manage and
monitor the pack and cells information including voltage, current and temperature. What’s more,
BMS can balance cells charging and discharging to extend cycle life.
2.1 Features
Battery cell is 3.2V 100Ah aluminum case prismatic cell.
Battery cell is made from lithium iron phosphate (LiFePO4) with safety performance and longer
cycle life.
Special designed plastic cell holder, holding 8 cells in series composes a battery module, and
two modules in series, then connected with BMS, composes a battery pack.

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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BMS has over-discharge, over-charge, over-current, high and low temperature warning and
protection functions.
BMS monitors charge and discharge state, and balance current and voltage of each cell.
BMS comes with upper computer system for real-time cell and pack voltage, current,
temperature, and battery status monitoring and recording.
Flexible configuration, max. 15 packs can be connected in parallel for expanding capacity and
power with 8 DIP switches.
Working temperature range is from -20℃~50℃(Charging 0℃~50℃; discharging -20℃~50℃)
with excellent discharge performance and cycle life.
2.2 Specifications
Basic Parameters
PUSUNG
Nominal Voltage (V)
51.2V
Nominal Capacity (Ah)
100Ah
Nominal Power (Wh)
5.12KWh
Dimension (mm)
565*440*170mm
Weight (Kg)
56.2KG
Discharge Cut-off Voltage (V)
41.6V
Charge Voltage (V)
54.5V
Max. Charge/Discharge Current (A)
100A
Communication Interface
CAN,RS485
Configuration
16S1P
Working Temperature
0～50℃(Charge)
-20～50℃(Discharge)
-20～55℃(Storage)
Cell chemistry
Lithium iron phosphate (LiFePO4)
Cycle life
≥80% capacity state after 4800
cycles at 0.5C, 25℃, 100% DOD
IP level
IP 20

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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2.3 Interfaces
RESET
Reset button: to start the battery pack, hold the button for 2s to turn on battery pack.
RS485
RS485 communication interface: RJ45 port, follow RS485 protocol. For transmitting battery pack
information between paralleled packs.
CAN
RS485 communication interface: follow CAN BUS protocol, for output pack information to inverter.
ADS
ADS Switch: To setup battery address, and to communicate between battery and BMS.
NOTE: There are 8 bit DIP switches, keep the switch on down side means ‘OFF’, turn up the switch to top side
means ‘ON’.

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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RS485 communication DIP address should setup as the following table.
RS485 Communication
Single pack address setting: #1, #2, #3, #4, #5, #6, #7, #8 all set OFF
8
7
6
5
4
3
2
1
1st PACK
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
2nd PACK
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
3rd PACK
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
4th PACK
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
5th PACK
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
6th PACK
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
7th PACK
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
8th PACK
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
9th PACK
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
10th PACK
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
11th PACK
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
12th PACK
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
13th PACK
OFF
OFF
OFF
OFF
ON
ON
OFF
ON
14th PACK
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
15th PACK
OFF
OFF
OFF
OFF
ON
ON
ON
ON

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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CAN communication DIP address should setup as the following table.
CAN Communication
Master Packs (#1, #2, #3, #4 set OFF)
#5, #6, #7, #8 set as follows
Slave Packs (#5, #6, #7, #8 set OFF)
#1, #2, #3, #4 set as follows
8
7
6
5
4
3
2
1
One pack
OFF
OFF
OFF
OFF
2 packs in
parallel
OFF
OFF
OFF
ON
1st slave pack
OFF
OFF
OFF
ON
3 packs in
parallel
OFF
OFF
ON
OFF
2nd slave pack
OFF
OFF
ON
OFF
4 packs in
parallel
OFF
OFF
ON
ON
3rd slave pack
OFF
OFF
ON
ON
5 packs in
parallel
OFF
ON
OFF
OFF
4th slave pack
OFF
ON
OFF
OFF
6 packs in
parallel
OFF
ON
OFF
ON
5th slave pack
OFF
ON
OFF
ON
7 packs in
parallel
OFF
ON
ON
OFF
6th slave pack
OFF
ON
ON
OFF
8 packs in
parallel
OFF
ON
ON
ON
7th slave pack
OFF
ON
ON
ON
9 packs in
parallel
ON
OFF
OFF
OFF
8th slave pack
ON
OFF
OFF
OFF
10 packs in
parallel
ON
OFF
OFF
ON
9th slave pack
ON
OFF
OFF
ON
11 packs in
parallel
ON
OFF
ON
OFF
10th slave pack
ON
OFF
ON
OFF
12 packs in
parallel
ON
OFF
ON
ON
11th slave pack
ON
OFF
ON
ON
13 packs in
parallel
ON
ON
OFF
OFF
12th slave pack
ON
ON
OFF
OFF
14 packs in
parallel
ON
ON
OFF
ON
13th slave pack
ON
ON
OFF
ON
15 packs in
parallel
ON
ON
ON
OFF
14th slave pack
ON
ON
ON
OFF
16 packs in
parallel
ON
ON
ON
ON
15th slave pack
ON
ON
ON
ON

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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ALARM
ALARM light: red LED flash to show the battery alarm status. And red light to show the battery in
protection status of abnormal temperature, over-current, or short-circuit.
RUN
Working light: green LED to show the battery working status.
Details as follows,
Battery
status
Operating
Mode
RUN
ALM
LED Light
Remark
●
●
●
●
●
●
Power off
Standby
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Standby
Normal
Solid Green
OFF
According to battery SOC status
Standby
mode
Charge
Mode
Normal
Solid Green
OFF
According to battery SOC status
Over current
warnings
Solid Green
Blink type 2
Over voltage
protection
Blink type1
OFF
OFF
OFF
OFF
OFF
Temperature,
over current
protection
Blink type1
OFF
OFF
OFF
OFF
OFF
Discharge
Mode
Normal
Blink type 3
OFF
According to battery SOC status
Warning
Blink type 3
Blink type 3
Over current,
temperature,
short-circuit
protection
OFF
Solid Red
OFF
OFF
OFF
OFF
Termination
of discharge
Under voltage
protection
OFF
OFF
OFF
OFF
OFF
OFF
Termination
of discharge

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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CAPACITY
SOC light: 4 green LED lights to show the capacity status of battery pack. Each LED represents 25%
the capacity.
P+/P-
Power terminals: two pairs of power terminals with the same function, one connect to equipment,
and the other one parallel to other battery pack for capacity expanding. For a single pack, both
terminals can achieve charging and discharging functions.
Power cable uses 6.0mm power plug with lock button. And can be full rotation.
Status
Charge
Discharge
Capacity
indicator
●L4
●L3
●L2
●L1
●L4
●L3
●L2
●L1
0-25%
OFF
OFF
OFF
Blink
OFF
OFF
OFF
Solid Green
25%-50%
OFF
OFF
Blink
Solid Green
OFF
OFF
Solid Green
Solid Green
50%-75%
OFF
Blink
Solid Green
Solid Green
OFF
Solid Green
Solid Green
Solid Green
>75%
Blink
Solid Green
Solid Green
Solid Green
Solid Green
Solid Green
Solid Green
Solid Green
Operating
indicator
Solid Green
Blink

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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2.4 Cell Features
2.4.1 Specifications
SEPLOS 3.2V 100Ah lithium iron phosphate (LiFePO4) aluminum case prismatic rechargeable
battery cell.
Refer to the cell specification for more detailed information.
SEPLOS Technology applies high quality Grade A cells inside the battery box. And did the following
designs to prolong the battery pack cycle life.
Judging by the current testing report below, if the battery pack charging and discharging at
0.2C, the battery pack could reach a cycle life of 6000 times or more at the remaining capacity
of 80% capacity state at 25℃room temperature, 100%DOD.
Nominal Voltage
3.2V
Nominal Capacity
100Ah
Weight
≤2.25Kg
Self-discharge Rate
≤3.5% per month
Initial Internal
Resistance（1KHz）
≤0.35mΩ

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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The real capacity of each single cell is 105Ah.
The module inside comes with 16 cells in parallel. And the default setting of BMS pack
discharge end voltage is for 15 cells in parallel.
2.5 Advanced Battery Management System (BMS)
The BMS is applied to monitor current, voltage, temperature, protection against over-charge,
over-discharge, over-current, over-temperature, under-temperature and short circuit. The BMS
provides cell balancing and current limitation during charging process to ensure a reliable safety
and performance.
2.5.1 BMS Functions
Over charge protection
Over discharge protection
Over current protection
Cell balancing
Temperature protection

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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CAN and RS485 communication
Refer to the BMS specification for the detailed information
2.5.2 BMS Upper Computer System
Battery pack can be remotely monitored with SEPLOS BATTERYMONITOR software. With this
software, battery voltage, cell voltage of single cell and pack, SOC status, cell temperature, voltage
differences can be monitoring in real time. Through history record, battery status can be checked
afterwards.
Note: Download the software installation file at Google drive with this link:
https://drive.google.com/drive/folders/10pxgNLHovcDZRVGrCZsSkfecBrRw-AdW?usp=sharing
2.5.3 Compatible Inverters
To make sure that the battery module works perfectly, it would be better to use the compatible
inverters listed below. Pusung battery module compatible with CANBUS protocol, which was also
applied by Pylontech and BYD.

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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Compatible inverters list:
3. Installation
3.1 Application

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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3.2 Tools
Screwdriver Electric Screwdriver
Preset Adjustable Torque Wrench Hex Wrench
3.3 Installation Process
3.3.1 Battery module assembly (cell to cell)
Put battery cell into plastic holders.
Connect the cells in parallel with busbar and BMS data collective wire harness. (Refer to the
wiring diagram.)

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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Wiring Diagram
B stands for Black wire
R stands for Red wire
O stands for Orange wire
Y stands for Yellow wire
W stands for White wire
NTC stands for negative temperature coefficient thermistor
3.3.2 Battery module wiring (module to module/BMS)
Put the battery modules into metal box.
Connect the two battery modules in parallel with flexible copper busbar.
Connect pack main negative with BMS negative.
Connect wire harness to the BMS.
Connect pack main positive with BMS positive.

SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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SEPLOS PUSUNG 2ND GENERATION 51.2V 100AH LIFEPO4 BATTERY PACK USER MANUAL www.seplos.com
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3.3.3 Battery pack wiring (Pack to pack)
Stack the battery packs onto the base. (Maximum 6 packs can be stacked.)
Connect cables between packs.
Connect cable with inverter.