TheSunPays BALI48 User manual

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Lithium-ion Battery Pack
Model: BALI48
User manual
Version: 1.4

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1. Safety precautions
Please strictly comply with all warnings and operating
instructions in this manual. Keep this manual in a safe
place and read the following instructions carefully
before installing the unit. Do not operate this unit
before carefully having read through all safety
information and operating instructions.
1-1 When in use
High voltage：
Beware of high voltage power supply. If wet or conductive material comes in contact with a high voltage
power supply, directly or indirectly, it can result in an electric shock that could be fatal.
Use correct tools:
When working with high voltage and AC power, ensure that the correct tools are used.
Static‐free
Static electricity would damage veneer on the electrostatic sensitive components. Before touching
the plug, isolate, circuit board or chips, be sure to use correct electrostatic prevention measures.

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Disconnect the power supply in operation:
While operating the power supply, you must first switch off power supply. Use of power operation is
not allowed.
DC short circuit dangerous:
Power system provides Direct Current regulated power supply.
Remember, Direct Current short circuited could cause fatal damage to the equipment.
1-2 While charging
CAUTION
The temperature range over which the battery can be charged is 0°C to 45°C. Charging the battery at
temperatures outside of this range may cause the battery to become hot or to malfunction.
Charging the battery outside of this temperature range may also harm the performance of the battery
or reduce the battery’s life expectancy.
1-3 When discharging the battery
DANGER
Do not discharge the battery using any device, other than that of the specified device. When the battery
is used in devices other than the device specified, it may damage the performance of the battery or
reduce its life expectancy. If the device causes an abnormal current to flow, it may cause the battery
to become hot and cause serious damage to the battery.
CAUTION
The temperature range over which the battery can be discharged is -20°C to 60°C. Use of the battery
outside of this temperature range may damage the performance of the battery or may reduce its life
expectancy.

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2.Table of Contents
1. Safety precautions ....................................................................................................... 2
1-1 When in use ............................................................................................................. 2
1-2 While charging .......................................................................................................... 3
1-3 When discharging the battery..................................................................................... 3
2.Table of Contents ............................................................................................................ 4
3. Parameters of battery .................................................................................................... 7
3-1 Parameters of battery pack ........................................................................................ 7
3.2 Technical parameters of Battery Management System (BMS) ........................................ 8
3-3 Dry contact description ............................................................................................ 19
4. Basic block diagram...................................................................................................... 20
5. Installation and operation ........................................................................................... 20
5-1. Unpacking and inspection ....................................................................................... 20
5-2. Panel view ............................................................................................................. 21
5-3. Single battery installation ........................................................................................ 23
5-4. Software installation ............................................................................................... 24
5-5. Installation of battery in parallel .............................................................................. 24
5-6 Installation precautions............................................................................................ 24
5-7 Operation instruction for installation.......................................................................... 26
5-8. Before switching on the battery ............................................................................... 31
5-9. Communication of battery....................................................................................... 31
5-10. Monitor PC Software interface ............................................................................... 33
5-11 Upper machine instructions .................................................................................... 33
5-12 Address switch function (Only in parallel) ................................................................ 38
5-13 Communication function......................................................................................... 38

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6. BMS operations............................................................................................................. 40
6-2. Buzzer operation (optional) ..................................................................................... 41
6-3. Reset key function.................................................................................................. 41
7. Troubleshooting............................................................................................................ 42
8. Storage and maintenance ............................................................................................ 42
8-1. Storage ................................................................................................................. 42
8-2. Maintenance .......................................................................................................... 42
9. Product responsibilities and consulting....................................................................... 44

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3. Parameters of battery
3-1 Parameters of battery pack
Model of battery pack
BALI48
Nominal voltage
48V
Rated capacity
Above 100AH
Rated reserved energy
4800WH
Maximum charging current
1C(100A)
Total charging cut-off voltage
54.75V
Floating charge voltage
52.5±0.5V
Cut-off voltage of charging cell
3.65V
Standard discharging current
0.2C (20A)
Maximum continuous discharging current
1C (100A)
Internal Resistance
≤30mΩ
Charging temperature range
0℃~45℃
Discharging temperature range
-20℃~60℃
Differential pressure at the discharging end
(2.5V for cell)
≤300mV
Differential pressure at the charging end
(3.65V for cell)
≤300mV
Dimension (W×D×H)
442*400*221mm
(excluding hanger and barrier terminal block)

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Weight
43kg
Gravimetric specific energy
112WH/Kg
Compound mode
15 Cells in series
3.2 Technical parameters of Battery Management System (BMS)
Function name
Item list
Set value
Setting range
Cell voltage
alarm
Overvoltage alarm voltage
3,600±20mV
Alarm value of cell
overvoltage
to
4,500mV
Undervoltage alarm
voltage
2,800±50mV
1,000mV
to
Alarm value of cell
undervoltage
Overvoltage protection
voltage
3,700±20mV
Recovery value of cell
overvoltage
to
4,500mV
Overvoltage recovery
voltage
3,380±20mV
Recovery value of cell
undervoltage
to
Protection value of
cell overvoltage

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Cell
overvoltage
protection
Overvoltage recovery
conditions
1. When the cell voltage is lower than the
recovery point, automatically recover charging.
2. When the cell voltage is lower than the
protection point and the capacity is ≤95%(regularly
charging conditions: Charging once per day),
recover charging.
Undervoltage protection
voltage
2,500±50mV
1,000mV
to
Recovery value of cell
undervoltage
Cell
undervoltage
protection
Undervoltage recovery
voltage
2,900±50mV
Protection value of cell
undervoltage to
Recovery value of cell
overvoltage
Undervoltage recovery
conditions
The valid charging current is detected and the
voltage is higher than the recovery point.
Alarm value of total voltage
undervoltage
Alarm of total
voltage of battery
Overvoltage alarm voltage
54.0±0.3V
to
65V
20V
Undervoltage alarm
voltage
42.0±0.5V
to
Alarm value of total voltage
overvoltage

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Battery
overvoltage
protection
Overvoltage protection
voltage
55.5±0.3V
Recovery value of total
voltage overvoltage
to
65V
Overvoltage recovery
voltage
50.2±0.3V
Recovery value of total
voltage undervoltage
to
Protection value of total
voltage overvoltage
Overvoltage recovery
conditions
1. When the total voltage is lower than the recovery
point, automatically recover charging.
2. When the total voltage is lower than the
protection point and the capacity is ≤95%(regularly
charging conditions: Charging once per day),
recover charging.
20V
Undervoltage protection
voltage
37.5±0.5V
to
Recovery value of total
voltage undervoltage
Battery
undervoltage
protection
Undervoltage recovery
voltage
43.5±0.5V
Protection value of total
voltage undervoltage
to
Recovery value of total
voltage overvoltage

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Undervoltage recovery
conditions
The valid charging current is detected and the
voltage is higher than the recovery point.
Battery cell
temperature
alarm
High temperature alarm of
battery cell
55±3℃
Low temperature alarm
value of battery cell to
90℃
Low temperature alarm of
battery cell
0±3℃
-40℃
to
High temperature alarm
value of battery cell
Charging high
temperature protection
55±3℃
Recovery value of charging
high temperature
to
90℃
Charging high
temperature recovery
50±3℃
Recovery value of charging
low temperature
to
No charging due
to temperature of
the battery cell
Protection value of charging
high temperature
-40℃
Charging low temperature
protection
-5±3℃
to
Recovery value of charging
low temperature

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Charging low temperature
recovery
0±3℃
Protection value of charging
low temperature
to
Recovery value of charging
high temperature
Discharging high
temperature protection
60±3℃
Recovery value of
discharging high
temperature
to
90℃
No discharging
due to
temperature of
the battery cell
Discharging high
temperature recovery
55±3℃
Recovery value of
discharging low
temperature
to
Protection value of
discharging high
temperature
Discharging low
temperature protection
-20±3℃
-40℃
to
Recovery value of
discharging low
temperature
Protection value of
discharging low
temperature

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Discharging low
temperature recovery
-15±3℃
to
Recovery value of
discharging high
temperature
Ambient
temperature
alarm
High ambient temperature
alarm
65±3℃
Alarm value of low ambient
temperature
to
90℃
-40℃
Low ambient temperature
alarm
-20±3℃
to
Alarm value of high ambient
temperature
Mos-Over-Temperature
Alarm（℃）
90±3℃
Recovery value of MOS high
temperature
to
90℃
-40℃
BMS temperature
Mos-Over-Temperature
Protection（℃）
110±3℃
to
High temperature alarm
value of battery cell

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protection
Mos-Over-Temperature
Protection Release（℃）
85±3℃
Recovery value of charging
low temperature
to
Protection value of charging
high temperature
Ambient
temperature
protection
High ambient temperature
protection
70±3℃
Recovery value of high
ambient temperature
to
90℃
High ambient temperature
recovery
50±3℃
Recovery value of low
ambient temperature
to
Protection value of high
ambient temperature
Low ambient temperature
protection
-20±3℃
-40℃
to
Recovery value of low
ambient temperature
Low ambient temperature
recovery
0±3℃
Protection value of low
ambient temperature to
Recovery value of high
ambient temperature
Charging
overcurrent alarm
Charging alarm current
125±2A
3A
to
Protection value of charging
overcurrent

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Charging
overcurrent
protection
Charging protection
current
130±2A
Alarm value of charging
current
to
100A
Charging current
limiting function
Charging limiting current
20A
It may be set to be 0, i.e.
close the charging current
limiting function.
Discharging
overcurrent alarm
Discharging alarm current
125±2A
Protection value of
discharging overcurrent
to
3A
Discharging
overcurrent
protection
Discharging protection
current
130±2A
150A
to
Alarm value of discharging
current
Output short-
circuit protection
Short-circuit protection
locking
Continuous output short circuit and exceed the
overcurrent locking times
Short-circuit unlocking
Continuous charger
Reverse polarity
protection
Yes
Automatic
recovery of
overcurrent
60S
1 S
to
60S
The overcurrent event with the time interval of no more than 5min is called
continuous overcurrent.

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Continuous
overcurrent
locking
3 times
One
to
100 times
Equilibrium
function of
battery cell
Charging equilibrium of
battery cell
Cut-in conditions: State of valid charging current
Equilibrium cut-in voltage
3,450mV
3,000mV
to
4,500 mV
Voltage difference of
equilibrium cut-in
30mV
Voltage difference value
after equilibrium
to
100mV
Voltage difference after
equilibrium
20mV
10mV
to
Voltage difference value of
equilibrium cut-in
Equilibrium current
80mA
Equilibrium high
temperature prohibition
50℃
Prohibition value of
equilibrium low temperature
to
70℃

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Equilibrium low
temperature prohibition
0 ℃
-20℃
to
Prohibition value of
equilibrium high
temperature
Static equilibrium of
battery cell
Cut-in conditions: All non-discharging states
Estimate based on the voltage of the battery cell
After overvoltage protection, when the rest capacity of the battery is reduced to
95% below or meets the regular charging conditions (charging once per day),
recover charging if the voltage is lower than the overvoltage protection setting
point.
Manual key
setting
In the shutdown state of BMS, press the key for 1S for startup.
In the non-standby state of BMS, press the key for 3S for shutdown.
In the non-standby state of BMS, press the key for 10S, until all LEDs lights up
for reset.
BMS power
consumption
management
Maximum standby time: 4h (The AC does not discharge, without valid
discharging current).
Power
consumption of
normal running
<30 mA
Static total power
consumption
Max150uA
Type 100uA
Measure and
monitor the
State of Charge
≤ 5%

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data record and
alarm history
≥ 1000 records
Display of SOC
Yes
Measure and
monitor accurancy
Module level: ≤ 0.5V of accuracy
Cell level: ≤ 0.05V of accuracy
Measure and
monitor the
current of
battery module
Accuracy: ≤ 5%
Measure and
monitor the
temperature
of battery
Accuracy: ≤ 3degC
Static total power
consumption
Max150uA
Type 100uA
Push battery's
alarm via dry
contact
yes
Also push alarm
even when BMS
is dead
yes

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3-3 Dry contact description
Functions and pin description:
•1, 2 Start on alarm
•3, 4 Start on battery power is low

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4. Basic block diagram
•There are Battery cells and BMS board inside, before connecting the terminal, please read the
diagram, and make sure the output is not short or other abnormal connection
.
Fig. 1 Battery Block Diagram
5. Installation and operation
5-1. Unpacking and inspection
Unpack the package and check the package contents. The shipping package contains:
●One Battery
●Two mounting brackets
●A small bag of screws and nuts