SUNGOLD POWER SGM-655M User manual

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Integrated Lithium-ion Battery Pack for
Wall-Mounted User Manual
ProductName: 48V100Ah LithiumBattery
ProductModel: SG48100M
ProductSpecifications: 51.2V100Ah
CompilationDate: 2022-12-12

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Catalogue
1. Document description..............................................................................................................................3
2. Definition of Terms .................................................................................................................................3
3. Battery system performance parameters..................................................................................................3
4. Outline and Structural Dimensions of Battery System............................................................................5
5. Definition of battery system interface .....................................................................................................6
5.1. Panel Schematic..............................................................................................................................6
5.2. Module Panel Description..............................................................................................................6
6. Functional block diagram ........................................................................................................................7
7. Battery Management System Specifications ...........................................................................................7
7.1. Basic parameter settings.................................................................................................................7
7.2. Interface........................................................................................................................................10
7.2.1. Interface diagram......................................................................................................................10
7.2.2. Interface Definition....................................................................................................................11
7.3. Communication description.........................................................................................................11
7.3.1. RS232 communication..............................................................................................................11
7.3.2. RS485 communication..............................................................................................................12
7.3.3. CAN communication ................................................................................................................12
8. Product function and performance description......................................................................................13
8.1. Charging performance.................................................................................................................13
8.2. Discharging performance.............................................................................................................13
9.Using & Maintenance Suggestions........................................................................................................14
9.1. LED indication description..........................................................................................................14
9.2. Buzzer action description.............................................................................................................15
9.3. Key Description...........................................................................................................................15
9.4. Sleep and wake up .......................................................................................................................16
9.4.1. hibernate ...................................................................................................................................16
9.4.2. Wake.......................................................................................................................................16
9.5. DIP switch settings ......................................................................................................................16
9.6. The routine maintenance of the battery part can be carried out by referring to the table ................18
10. Packing List .........................................................................................................................................18
11. Storage, maintenance and transportation.............................................................................................19
11.1. Storage.......................................................................................................................................19
11.2. Transportation............................................................................................................................19
12. Maintain...............................................................................................................................................19
13. Battery usage precautions....................................................................................................................20
14. Product Liability..................................................................................................................................20

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1. Document description
This specification covers the performance indexes, technical requirements and safety issue of the 48V100Ah
2. Definition of Terms
BMS
Battery Management System
DOD
Depth Of Discharge
EOL
End Of Life
OCV
Open Circuit Voltage
SOC
State Of Charge
SOH
State Of Health
EMC
Electro Magnetic Compatibility
Nominal
voltage
Appropriate voltage approximation to identify or identify a cell or an electrochemical system.
Capacity
(The amount of power a battery can provide when fully charged under specified conditions. Usually
expressed in Ah.)
Energy
The energy that can be provided by a fully charged battery under specified conditions. Usually
expressed in Wh or kWh.
Unit
“V” (Volt) ( Voltage unit)
“A” (Ampere) (Current unit)
“Ah” (Ampere-Hour) (unit of charge)
“Wh” (Watt-Hour) (electrical energy unit)
“Ω” (Ohm) (resistance unit)
“°C” (degree Celsius) (temperature unit)
“mm” (millimetre) (length unit)
“s” (second) (Time unit)
“kg” (kilogram) (Weight unit)
“Hz” (Hertz) (Frequency unit)
3. Battery system performance parameters
No.
Item
Technical parameter
Note
1
Battery Type
Lithium iron phosphate battery
/
2
Rated capacity
100Ah
@25℃±2，0.5C，100%DOD
3
Nominal voltage
51.2V
4
Recommended charging voltage
54.5V
5
Charging Limited Voltage
42V
6
SOC working range
0~100%
Recommendedrangeofuse：
20%~95%
7
Standard discharge current
50A

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8
Maximum continuous discharge current
100A
9
Standard charging current
50A
10
Maximum continuous charge current
100A
11
Maximum cut-off voltage for charging
57.6V
12
Charge cut-off current
5A
0.05C magnification
13
Disharge cut-off voltage
43.2V
14
PACK cycle life
≥7000
80%DOD
25℃±2℃, 0.5C charge/0.5C discharge
15
Thermal management method
Natural heat dissipation
16
IP protection class
IP65
battery box
17
Flammability rating
plastic parts UL94 V-0
18
Total system mass
Around 43KG
19
Battery system shell material
299U Q235A
Color can be customized
20
Shipping SOC
SOC45-55%
21
Dimension（L*W*H inch）
23*16.5*6 inch
22
Design life
15 Year
23
Parallel function
Supports up to 16 batteries in
parallel
24
Anti-theft function
sensor
G-sensor anti-theft function
25
Display function
English smart display
26
Charging current limit function
Current limit 20A
Charging current limit can be set
according to customer requirements
27
Communication mode
RS232
Communication mode can be set
according to customer requirements
RS485
CAN
28
Communication protocol
Support multiple protocols
Communication protocol can be set
according to customer requirements
29
Storage ambient temperature
-10~+45℃
Recommended storage temperature：
0~+30℃
30
Working temperature
Battery charging:0～45℃
Battery discharging:-20～+60℃
31
Relative humidity of working
environment
≤95
BestUseRelativeHumidity：≤85%

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4. Outline and Structural Dimensions of Battery System

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5. Definition of battery system interface
5.1. Panel Schematic
5.2. Module Panel Description
1. P+
2. P+
3. P-
4.P-
5. ON/OFF
6.RUN
7. ALM
8. SOC
9. RS485
10. CAN
11.GROUND SCREW
12.RS232
13.DISplay
14. DRY CONTACT
15.ADD
16.SWITCH
17. REWET

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6. Functional block diagram
The functional block diagram is shown in the figure below
7. Battery Management System Specifications
7.1. Basic parameter settings
NO.
Indicator item
Factory
default
parameters
Is it possible to set
Note
1
Cell overcharge
protection
Cell overcharge alarm
voltage
3600mV
Can be set
Cell overcharge protection
voltage
3650mV
Can be set
Cell overcharge protection
delay
4.0S
Can be set
Single
Overvoltage
Protection
Released
overcharge protection release
voltage Cell
3380mV
Can be set
Capacity release
SOC＜96%
Can be set
Discharge release
> 1A
2
Cell
overdischarge
protection
Cell over-discharge alarm
voltage()
2700mV
Can be set
After 30 seconds
of over-
discharge
protection, if it
still cannot
recover, it will
enter low power
consumption
mode
Cell over-discharge
protection voltage
2500mV
Can be set
Monomer over-discharge
protection delay
1.0S
Can be set
Cell over-
discharge
protection
released
Cell over-discharge
protection release voltage
2800mV
Can be set
(Release when charging)
Plug into the charger to activate

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3
Overall
overcharge
protection
Overall overcharge warning
voltage
57.6V
Can be set
Overall overcharge protection
voltage
58.4V
Can be set
Overall overcharge protection
delay
1.0S
Can be set
Overall
overvoltage
protection
released
Overall overcharge protection
release voltage
54.1V
Can be set
Capacity release
SOC＜96%
Can be set
Discharge release
> 1A
Discharge current > 1A
4
Overall
overdischarge
protection
Overall over-discharge
warning voltage
43.2V
Can be set
After 30 seconds
of over-
discharge
protection, if it
still cannot
recover, it will
enter low power
consumption
mode
Overall over-discharge
protection voltage
40V
Can be set
Overall over-discharge
protection delay
1.0S
Can be set
Overall over-
discharge
protection
released
Overall over-discharge
protection release voltage
44.8V
Can be set
Release when charging
Plug into the charger to activate
Charging current
limit function
Charging current limit
20A
5
Charge
overcurrent
protection
Charge overcurrent 1 alarm
current
105A
Can be set
Appearing 10
times in a row
will lock the
status and will
no longer
automatically
release
Charge overcurrent 1
protection current
110A
Can be set
Charge overcurrent 1
protection delay
1.0S
Can be set
Charging
overcurrent
1protection
released
Automatic release)
1min
Automatically cancel after 1min
Discharge release
> 1A
Discharge current > 1A
6
Discharge
overcurrent 1
protection
Discharge overcurrent 1
alarm current)
105A
Can be set
Appearing 10
times in a row
will lock the
status and will
no longer
automatically
release
Discharge overcurrent 1
protection current)
110A
Can be set
Discharge overcurrent 1
protection delay
1.0S
Can be set
Discharge
overcurrent 1
protection
released
Automatic release
1min
Automatically cancel after 1min
Charge release
> 1A
Charge current > 1A
7
Discharge
overcurrent 2
Discharge overcurrent 2
protection current
≥120A
Can be set
Appearing 10
times in a row
will lock the
status and will
no longer
automatically
release
Discharge overcurrent 2
protection delay
100mS
Can be set
Discharge
overcurrent 2
protection
released
Automatic release
1min
Automatically cancel after 1min
charge release
> 1A
Charge current > 1A
8
Short circuit
Short circuit protection function
(Have)

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protection
Short circuit protection current
≥350A
Short circuit protection delay
≤300US
Short circuit protection released
When there is charging,
the short circuit
protection is released
After the load is
removed, it will
automatically disarm
9
MOS high
temperature
protection
MOS over temperature alarm temperature)
90℃
Can be set
MOS over temperature protection temperature)
115
℃
Can be set
MOS protection release temperature)
85℃
Can be set
10
Cell temperature
protection
Charging low temperature warning
temperature)
0℃
Can be set
Charging low temperature protection
temperature)
-5℃
Can be set
Charging low temperature protection release
temperature
0℃
Can be set
Charging high temperature
alarm temperature
50℃
Can be set
Charging high temperature
protection temperature)
55℃
Can be set
Charging high temperature
protection release
temperature
50℃
Can be set
Discharge low temperature
alarm temperature
-15℃
Can be set
Discharge low temperature
protection temperature
-20℃
Can be set
(Discharge low temperature
protection release
temperature
-15℃
Can be set
Discharge high temperature
alarm temperature
60℃
Can be set
Discharge high temperature
protection temperature
65℃
Can be set
Discharge high temperature
protection release
temperature
55℃
Can be set
11
Ambient
temperature
alarm
Ambient low temperature
alarm temperature
-15℃
Can be set
Ambient low temperature
protection temperature
-20℃
Can be set
Ambient cryogenic
protection release
temperature
-15℃
Can be set
Ambient high temperature
alarm temperature
65℃
Can be set
Ambient high temperature
protection temperature
75℃
Can be set
Ambient high temperature
protection release
temperature
65℃
Can be set
12
Current
consumption
Self-consumption current
during operation
≤45mA（（with display）
≤40mA(without display)
Low power mode current
≤200μA

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7.2. Interface
7.2.1. Interface diagram
CAN and RS485 interface dry contact
Parallel communication port RS232 communication interface
13
Equalization
function
Equalization turn-on voltage
3500mV
Can be set
Open differential pressure
30mV
Can be set
14
Capacity
default settings
Low battery warning
SOC＜5%
Can be set
(No alarm when
charging)
Full capacity setting
100AH
Can be set
15
Sleep function
Sleep voltage
3150mV
Can be set
Delay
5min
Can be set
16
Differential
pressure alarm
Overpressure alarm
800mV
Overpressure recovery
500mV
17
Cell failure
protection
Monomer differential
pressure
＞1V
Voltage difference>1V
Charge and
discharge are not
allowed
18
Full charge
judgment
Full charge voltage
56V
Cut off current
2A

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7.2.2. Interface Definition
RS232--Using 6P6C vertical RJ11 socket
RJ11
Definition description
2
NC
3
TX
4
RX
5
GND
RS485 and CAN interface
RS485--Using 8P8C vertical RJ45 socket
CAN--Using 8P8C vertical RJ45 socket
RJ45 Pin
Definition description
RJ45 Pin
Definition description
1、8
RS485-B1
9、10、11、14
、16
NC
2、7
RS485-A1
12
CANL
3、6
GND
13
CANH
4、5
NC
15
GND
Parallel communication port
RS485--Using 8P8C vertical RJ45
socket
RS485--Using 8P8C vertical RJ45
socket
RJ45Pin
Definition
description
RJ45 Pin
Definition
description
1、8
RS485-B
9、16
RS485-B
2、7
RS485-A
10、15
RS485-A
3、6
GND
11、14
GND
4、5
NC
12、13
NC
7.3. Communication description
7.3.1. RS232 communication
The BMS can communicate with the host computer through the RS232 interface, so as to monitor

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various information of the battery on the host computer side, including battery voltage, current,
temperature, status, SOC, SOH and battery production information, etc. The default baud rate is
9600bps.
7.3.2. RS485 communication
With dual RS485 interface, you can view the information of PACK, the default baud rate is
9600bps. To communicate with the monitoring device through RS485, the monitoring device is
used as the host to poll data according to the address, and the address setting range is 2~15.
7.3.3. CAN communication
CAN communication, baud rate 500K

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8. Product function and performance description
8.1. Charging performance
◆Standard charging current （25℃）：example:0.2C（20A）
◆Standard charging voltage：54V
◆Standard charging mode and charging curve：
8.2. Discharging performance
Discharge curve at different magnification

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9. Using & Maintenance Suggestions
9.1. LED indication description
Table 1 LED working status indication
Condition
Normal
/Alarm/
Protect
RUN
ALM
LED
Battery indicator LED
Illustrate
●
●
●
●
●
●
●
●
Shutdown
Hibernat
e
black
black
black
black
black
black
black
black
Annihilate
Standby
Normal
flash1
black
According to the battery indicator
Standby mode
Alarm
flash1)
flash3
Module low voltage
Charging
Normal
Always
bright)
black
According to the battery indicator
(battery indication maximum LED flashes 2)
(The highest power LED flashes
(flashing 2), the overcharge alarm
ALM does not flash)
Alarm
Always
bright
3
flash3
Overcha
rge
protecti
on
Always
bright
black
Alwa
ys
bright
Alwa
ys
bright
Alwa
ys
bright
Always
bright
Always
bright
Always
bright
(If there is no utility power, the
indicator light is in standby state)
Tempera
ture,
overcurr
ent, fail
safe
black
Always
bright
black
black
black
black
black
black
Stop charging
Dischargi
ng
Normal
flash3
black
(According to the battery indicator)
Alarm
flash3)
flash3
Undervo
ltage
protecti
on
black
black
black
black
black
black
black
black
Stop discharge
Tempera
ture,
overcurr
ent,
short
circuit,
reverse
connecti
on, fail
safe
black
Always
bright
black
black
black
black
black
black
Stop discharge
Invalid
black
Always
bright
black
black
black
black
black
black
Stop charging and discharging
Table 2 Description of capacity indication
Condition
Charging
Discharging
Capacity indicator
L6●
L5●
L4●
L3●
L2●
L1●
L6●
L5●
L4●
L3●
L2●
L1●
Electri
city（
%）
0～17%
black
black
black
black
black
flash2
black
black
black
black
black
Always
bright
17～33%
black
black
black
black
flash 2
Always
bright
black
black
black
black
Always
bright
Always
bright
33～50%
black
black
black
flash 2
Alway
s
bright
Always
bright
black
black
black
Alway
s
bright
Always
bright
Always
bright

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50～66%
black
black
flash 2
Alway
s
bright
Alway
s
bright
Always
bright
black
black
Alway
s
bright
Alway
s
bright
Always
bright
Always
bright
66-83%
black
flash 2
Alway
s
bright
Alway
s
bright
Alway
s
bright
Always
bright
black
Alway
s
bright
Alway
s
bright
Alway
s
bright
Always
bright
Always
bright
83-100%
flash 2
Alway
s
bright
Alway
s
bright
Alway
s
bright
Alway
s
bright
Always
bright
Alway
s
bright
Alway
s
bright
Alway
s
bright
Alway
s
bright
Always
bright
Always
bright
Running lights●
Always bright
flash3
Table 3 LED flashing description
Flashing method
Bright
Black
flash 1
0.25S
3.75S
flash 2
0.5S
0.5S
flash 3
0.5S
1.5S
Note：
The LED indicator alarm can be enabled or disabled through the host computer, and the factory default
is enabled.
9.2. Buzzer action description
1) In case of failure, it will beep for 0.25S every 1S;
2) During protection, it will beep for 0.25S every 2S (except for overvoltage protection);
3) When alarming, it will beep every 3S for 0.25S (except overvoltage alarm);
4) The buzzer function can be enabled or disabled by the host computer, and the factory default is
disabled.
9.3. Key Description
1)When the BMS is in the dormant state, press the button (3~6S) and release it, the protection board will
be activated, and the LED indicators will light up in sequence from "RUN" for 0.5 seconds.
2)When the BMS is activated, press the button (3~6S) and release it, the protection board is put to sleep,
and the LED indicators light up sequentially for 0.5 seconds from the lowest battery light.
3)When the BMS is activated, press the button (6~10S) and release it, the protection board will be reset,
and all the LED lights will light up at the same time for 1.5 seconds.
After the BMS is reset, it still retains the parameters and functions set by the host computer. If it is
necessary to restore the initial parameters, it can be achieved through the "restore default value" of the
host computer, but the relevant operation records and stored data remain unchanged (such as power,
cycle times, etc.). , protection records, etc.).

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9.4. Sleep and wake up
9.4.1. hibernate
When any of the following conditions are met, the system enters a low-power mode:
1. The single or overall over-discharge protection has not been released within 30 seconds.
2. Release the button after pressing the button for 3 seconds.
3. The minimum cell voltage is lower than the sleep voltage, and the duration reaches the sleep delay
time (at the same time, no communication, no protection, no balance, and no current are satisfied).
4. The standby time is more than 24 hours (no communication, no charging and discharging, no mains
power).
5. Forced shutdown through the host computer software.Before entering the sleep mode, make sure
that the input terminal is not connected to an external voltage, otherwise it will not be able to enter
the low power consumption mode.
9.4.2. wake
When the system is in low-power mode and meets any of the following conditions, the system will exit
the low-power mode and enter the normal operation mode:
1. Connect the charger, the output voltage of the charger must be greater than 48V.
2. Press the button for 3S and release the button.
3. Connect to the communication line and open the software of the upper computer (it enters the sleep
state due to over-discharge protection, this method cannot wake up the protection board).
Remarks:
After the single or overall over-discharge protection, it enters the low-power mode, wakes up regularly
every 4 hours, and turns on the charge and discharge MOS. If it can be charged, it will exit the dormant
state and enter normal charging; if it cannot be charged after 10 consecutive automatic wake-ups, it will
no longer automatically wake up.
When the system is defined as the end of charging, the recovery voltage is not reached after 2 days of
standby (standby time setting value), and the charging is forced to resume until the end of charging
again.
9.5. DIP switch settings

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When the battery packs are used in parallel, different PACK can be distinguished by their hardware
addresses, and the hardware address of each PACK in the entire battery stack is unique. The hardware
addresses can be set in sequence through the DIP switches on the board. Refer to the following for the
definition of the switches. surface.

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9.6. The routine maintenance of the battery part can be carried out by referring to
the table
The final state of charge and discharge can be judged by the capacity light, refer to the definition of LED light capacity
status light.
10. Packing List
See below for packing list
NO.
Material name
Specification/Module
Number
1
48100Ah lithium iron
phosphate battery
48100
1 set/box
2
Positive and negative
output lines
One end crimped 25-8, one end waterproof plug, 25mm2
flame retardant cable, 500mm long one red and one black.
1 set/1 module
3
RS485 cascade
communication line
0.5 meters long, with RJ45 crystal heads at both ends.
1root/2 modules
4
RS485 USB
RS232 USB
1.5 meters long, one end is the corresponding crystal head,
and the other end is the USB interface.
1 set/8 module
5
Product manual
/
1
6
Certificate
/
1
7
Wall bracket and supporting
M10 expansion bolt
Wall bracket and supporting M10 expansion bolt
1 set
Period
Item
Treatment measures
Per month
(Operating
environment)
Keep away from heat sources and avoid direct sunlight
Visual inspection
If the appearance is damaged, leaked or deformed, the faulty battery pack should
be disconnected, photographed and replaced.
Each quarter
Clean
appearance
Clean the exterior with a cotton cloth. Due to the high voltage of the battery pack,
care should be taken when cleaning.
Connection
Status
⚫Check the bolts at each terminal and retighten them if they are loose.
⚫If the temperature of the connection line exceeds 40°C (feeling hot), check
the cause
Every half year
Voltage detection
⚫At the end of charging, measure and record the busbar voltage and the
positive and negative terminal voltages of the battery pack. The voltages of
the two are consistent. Otherwise, check whether the cable at the
corresponding connection is faulty.
⚫In the first year, real-time data collection at the end of discharge was
performed at least every six months.
⚫Beginning in the second year, on-site capacity determination will be
conducted every three months. If a certain battery cell is frequently
overcharged and over-discharged in the historical alarm information viewed
through the RS232 interface, it means that the battery cell has touched the
charging protection point and the discharging protection point for a long
time. This situation may lead to insufficient backup time, it is recommended
to replace it in time

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8
M6 * 12 composite bolt
M6 * 12 composite bolt
4pc
9
Dry contact terminal
Matching according to the number of dry nodes of the BMS
1pc
11.Storage, maintenance and transportation
11.1. Storage
1. The battery pack is usually stored at a state of charge of 20% to 40% in a clean, dry, ventilated and
rain-proof room with an ambient temperature of -5°C to 35°C and a relative humidity of not more
than 75%, and should be placed flat. Pad height, not less than 100MM from the ground;
2. Batteries cannot be stored with active chemicals or dusting items;
3. The battery cannot be subjected to any mechanical shock or heavy pressure;
4. The battery should avoid direct sunlight, keep away from the fire source, and the distance from the
heat source should not be less than 2M;
5. From the date of manufacture, every 3 months of storage should be charged with a current of
0.2~0.5C for 30~60min, and the temperature range is 25℃±5℃.5）.
11.2. Transportation
The battery pack should be packaged and shipped. During transportation, avoid severe vibration, shock
or extrusion, and avoid sun and rain. Batteries can be transported by vehicles such as cars, trains, ships,
and planes.
12. Maintain
The battery pack should remain at 40% - 60% of state of charge;
When the battery is not in use for a long time, it is recommended to charge it with 0.2c current every
three months or so.
During the maintenance process, do not install or remove the battery in the battery pack by yourself,
otherwise the battery performance will be reduced;
Any battery in the battery pack shall not be disassembled or replaced without authorization, and
dissection of the battery is strictly prohibited.

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13.Battery usage precautions
Please read the instruction manual and precautions carefully before use. When used correctly according
to the product characteristics, the battery will be a safe, reliable and convenient storage battery.
Warn! Improper use of lithium-ion batteries can result in personal injury or fire!
1. When charging the battery, pay attention to ensure that the polarity is correct, and do not reverse the
charging of the battery;
2. Do not expose the battery to adverse environments, such as extreme temperatures, deep cycling,
frequent overcharge/overdischarge;
3. If you find that the battery is abnormal, please stop using it immediately and report it to a
professional for treatment;
4. Ensure that batteries and battery management systems are kept away from dangerous goods or
dangerous materials;
5. It isforbidden to short-circuit the battery;
6. It is forbidden to burn or destroy the battery, which may cause the release or burning of harmful
gases;
7. Do not disassemble, squeeze, pierce or burn.
8. Rain is prohibited;
9. It is forbidden to be directly exposed to sunlight;
10. Prohibit exposure to temperatures above 60°C;
11. It is forbidden to discard the battery in the garbage;
12. It is forbidden to use other types of batteries in series or in parallel with lithium-ion batteries;
13. It is forbidden to use new and old batteries (groups) in series or in parallel.
14. Product Liability
Consumers must strictly abide by the requirements of this product specification to use this product. Misuse
may lead to serious accidents.The company is not responsible for any accidents caused by the operation
and use that are not strictly in accordance with this product specification.The company reserves the right
to change the contents of this specification without prior notice; the final interpretation right of this
information belongs to the company.