Real Power RP-LFP48 Series User manual

User Manual
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User Manual
Realpower-LFP Home Energy Storage Series
Lithium Iron Phosphate Energy Storage Battery System
Shenzhen Realpower Technology co., Ltd
Shenzhen Office :4A,Building A3,Zhujiang Plaza, Longgang District, Shenzhen
HK Office : Room 608 ,6/F ,Lucky Center 165-171 Wanchai Road ,Hongkong
Tel:[phone]
E-mail:[email protected] / [email protected]
Website:www.realpowersz.com

User Manual
2
Revision
File No.
Version
Revised by
Revised Contents
Date
1
Rev1.0
Zhang Bao
1st Released
2022.03.04

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Manual Description
Content Description
Realpower energy storage battery system is an external battery system that provides power for the home
power supply system. When the mains or photovoltaic power supply is normal, it is converted by the
inverter to supply power to the household load and charge the battery; The household load provides
uninterrupted power supply to ensure the normal operation of household electricity; when the mains (or
photovoltaic) is turned on again, the battery pack is charged while the power supply to the household load is
restored.
This manual systematically expounds the working principle, basic structure, operating parameters,
tallation of RPT-LFP48 series products. The main contents are as follows:
Chapter Abstract
Chapter 1 Overview
The chapter systematically expounds the background, application and characteristics
of RP-LFP48 series products.
Chapter 2 Structure and Principles This chapter focuses on the structure and working principle of the RP-LFP48 series.
Chapter 3 Product Parameters This chapter introduces the system parameter design of RP-LFP48 series products.
Chapter 4 Installation and
Commissioning
This chapter introduces the installation, debugging process and precautions of
RP-LFP48 series products.
Chapter 5 Transportation, Use and
Maintenance
This chapter mainly introduces the transportation, usage requirements, operating
status description and common troubleshooting of RP-LFP48 series products.
Safety Notice
Installation, operation and maintenance of RP-LFP48 series home energy storage system should only be
carried out by trained and qualified professionals. Before installation and use, please read the safety
precautions and related operating procedures of this product carefully, otherwise it may cause personal
injury or product damage. The precautions mentioned in this manual belong to the precautions under
normal circumstances. If you find any special use environment or use conditions, please contact the
technical personnel of RP to solve it.
Common Symbols
Safety Notice
Do not throw into fire

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RECYCLE
Do not throw away
Precautions
Safety Notice
Please read carefully and install and use the battery in accordance with the following terms. Improper
installation and use of the battery may cause personal injury or damage to the product.
1. It is strictly forbidden to immerse the battery in water. When not in use, it should be placed in a cool and dry
environment.
2. It is strictly forbidden to put the battery into fire or heat it from outside to avoid explosion or other danger.
3.When charging, please use the special charging and rectifying power supply module for communication iron
lithium battery, and follow the correct instructions for use. Do not configure the charger for the battery pack
without authorization.
4. It is strictly forbidden to reverse the positive and negative poles of the battery, it is strictly forbidden to
connect the battery directly to the power socket, and it is forbidden to short-circuit the positive and negative
poles of the battery.
5. Do not mix batteries of different manufacturers or different types and types, as well as old and new batteries.
6. Do not charge or discharge hot, swollen, deformed or leaking batteries into the device.
7. It is forbidden to pierce the battery with nails or other sharp objects, and it is forbidden to throw, trample,
knock, hit the battery, etc.
8. It is forbidden to disassemble and disassemble the battery and components, but the company will not be
responsible for any damage caused by unauthorized disassembly or repair.
Warning
9. The battery has been strictly inspected before leaving the factory. If the customer finds that the purchased
battery has symptoms such as heat, swelling or peculiar smell, please do not use it and return it to the factory
immediately.
10. When storing for a long time, in order to ensure the best performance of the battery, the battery should be
charged and discharged once every three months, and the battery should be stored with 50%~60% of the
power.
11. Please use the battery within the temperature range specified in the specification.
12. The product is in a half-charged state when shipped, and users should fully charge it before using it.

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Contents
1. Overview....................................................................................................................................................................................................6
1.1. Background and Applications .............................................................................................................................................6
1.2. Advantages .................................................................................................................................................................................. 6
2. Principle and Structure....................................................................................................................................................................... 7
2.1 Operating Principle...................................................................................................................................................................7
2.2 Connection Structure...............................................................................................................................................................7
3. Parameters................................................................................................................................................................................................8
3.1. Model............................................................................................................................................................................................. 8
3.2. Control Panel.............................................................................................................................................................................. 8
3.3. Battery Management System（BMS）.........................................................................................................................10
3.3.1. Voltage Protection Function................................................................................................................................ 10
3.3.2. Current Protection Function................................................................................................................................10
3.3.3. Temperature Protection Function.....................................................................................................................11
3.3.4. Cell Balancing .............................................................................................................................................................11
3.4. Charging Parameters............................................................................................................................................................13
3.5. Discharging Parameters......................................................................................................................................................13
4. Installation and Commissioning ...................................................................................................................................................14
4.1. Installation Preparation......................................................................................................................................................14
4.1.1. Installation Environment Requirements ....................................................................................................... 15
4.1.2. Tools and Materials................................................................................................................................................. 15
4.1.3. Site Survey...................................................................................................................................................................15
4.1.4. Battery Inspection and Acceptance..................................................................................................................16
4.2. Installation ................................................................................................................................................................................16
4.2.1. Cautions ........................................................................................................................................................................16
4.2.2. Installation Steps ......................................................................................................................................................17
5. Transportation & Storage& Maintenance .................................................................................................................................18
5.1. Transportation and Storage.............................................................................................................................................. 18
5.2. Alarm & Disposal ................................................................................................................................................................... 19
5.3. Common faults and Solutions ...........................................................................................................................................19

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1. Overview
1.1. Background and Applications
In recent years, with the rapid development of lithium-ion battery technology, the pace of lithium-ion
batteries replacing traditional lead-acid batteries is gradually accelerating in various power fields.
Compared with traditional lead-acid batteries, lithium-ion batteries have the advantages of high
energy density, small size, light weight, long life, and wide operating temperature range, especially the
comprehensive advantages of lithium iron phosphate batteries with lithium iron phosphate as the
positive electrode material. protrude. At present, the technology of lithium iron phosphate battery is
becoming more and more mature, the cost is gradually rationalized, and it is gradually becoming the
mainstream high-end home power supply solution.
Shenzhen Realpower Technology co., Ltd closely follows the market demand and is the first to
develop a home energy storage lithium-ion battery system. The system includes a high-energy
lithium iron phosphate battery and an intelligent management system to achieve high
integration and intelligent management, and can match many inverter brands in the market to
achieve efficient conversion of electricity.
1.2.Advantages
The positive electrode material of the battery is lithium iron phosphate (LiFePO4) material, which
has good safety performance, has a cycle life of more than 6,000 times, and has a floating charge
life of more than 10 years, which greatly extends the life of the backup power system.
The high-performance intelligent management system is adopted to realize comprehensive state
control of battery charging, discharging, floating charging and hibernation, and multi-level
protection is set for voltage, current, temperature, etc., so that the battery is always in an ideal
state.
It has a comprehensive monitoring system to monitor the voltage, current, temperature, capacity
and working status of the battery.
The system adopts an intelligent design method to meet the four remote control standards of the
national standard: telemetry, remote signaling, remote control, and remote adjustment.
Built-in intelligent balance module to ensure the capacity consistency of the battery pack during
long-term use and prolong the service life.
The control panel includes status display and alarm devices, which can visually see the working
status and alarm information of the battery.

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The system has its own intelligent thermal management device, which can work in a wide
temperature range.
2. Principle and Structure
2.1 Operating Principle
RP-LFP48 series home energy storage lithium iron phosphate battery integrated power supply
system Working principle: Connect the RP-LFP48 series battery pack in parallel to the DC output end
of the inverter of the energy storage device. When the mains power supply is normal, the inverter
The inverter module works normally to supply power to the equipment (the load in the figure) and
charge the battery pack; when the utility power and photovoltaic power are cut off, the battery
pack provides uninterrupted power supply to the inverter to ensure the normal operation of
household electricity; When power is turned on again, the battery pack is charged while power is
restored to the household loads.
2.2 Connection Structure
The connection diagram of the RP-LFP48 series home energy storage lithium iron phosphate battery
system is shown in Figure 1 below:
Figure 1 Operation Principle Diagram of Battery System

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3. Parameters
3.1. Model
The technical parameters of RP-LFP48 series products are shown in Table 1 below:
Table 1 RP-LFP48 Home Energy Storage Series Product List
Items
48V100Ah
48V100Ah
48V200Ah
51.2V100Ah
51.2V200Ah
Rated Voltage（V）
48
48
48
51.2
51.2
Nominal capacity（Ah）
100
100
200
100
200
Energy（Wh）
4800
4800
9600
5120
10240
Length（mm）
480
780
442
442
442
Width（mm）
442
495
480
800
Height（mm）
3.5U
217
155（3.5U）
Weight（kg）
45
62
92
64
96
3.2.Control Panel
RP-LFP48 wall-mounted home energy storage lithium iron phosphate battery system adopts
the same control panel structure as Figure 2
Figure 2 Control Panel Illustration
Table 2 Control Panel Interface
No.
Item
Function
Remark
1
Case Handle
Easy to carry, move and install
2
Terminals
Power terminal for external battery output
The default configuration of two groups of
parallel output
3
Bracket
Product wall mounted
4
ID
Address allocation during system
expansion application
See Table 3 for details

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5
RUN
LED indication (green light) during normal
operation
Always on when Product is running
6
RS485
Communication interface
7
RESET
Emergency system reset to ensure system
maintainability
8
ON/OFF
Switch button
It can be turned off when not in use to reduce
power consumption
9
ALM
Alarm indication, alarm indication when
the system is abnormal
10
SOC
Battery capacity estimation
6 green lights indicate 6 levels of power
Table 3 ID DIP Address Assignment Instructions
Status
Address
Module Definition
Remark
OFF
OFF
OFF
ON
1
Module 1
As Master, allow 485 pairs of PC communication
OFF
OFF
ON
OFF
2
Module 2
as Slave 1
OFF
OFF
ON
ON
3
Module 3
As Slave 2
OFF
ON
OFF
OFF
4
Module 4
As Slave 3
OFF
ON
OFF
ON
5
Module 5
As Slave 4
OFF
ON
ON
OFF
6
Module 6
As Slave 5
OFF
ON
ON
ON
7
Module 7
As Slave 6
Note: The code bits in Table 3 are based on the binary digits corresponding to the ID dial code in the control
panel. The dial code upward represents "ON", the downward direction represents "OFF", the left side of the dial
code is high, the right side is low, and the coding range is 0~15, that is, up to 16 modules can be cascaded. All
codes are in accordance with the above table and so on.
Table 4 LED instructions
Battery
Status
Normal/
Alarm
Power Display
（Green Light）
RUN
（Green Light）
Alarm
（Red Light）
Remark
OFF
/
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
All OFF
Standby
Normal
Display according to power
ON
OFF
ALM lights up
when fault
occurs
Alarm
Display according to power
ON
ON
RUN
Normal
Display according to power
ON
OFF
ALM lights up
when fault
occurs
Alarm
Display according to power
ON
ON
Note: All LED lights are off when the power is off, and the RUN light is on when the power is on; the ALM
light is on when the system is faulty; the battery capacity is estimated to have 6 green lights, each light

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represents 16.6% of the capacity, and 6 lights when the capacity is 100% Full on; when the capacity is
83%, the first light on the right is off; when the capacity is 66%, the two lights on the right are off,
decreasing in turn.
3.3.Battery Management System（BMS）
3.3.1.Voltage Protection Function
Discharging Low Voltage Protection
When the battery module is discharged, when the voltage of any single battery is lower than the low-voltage
protection value of the system or the voltage of the whole group of batteries is lower than the protection
voltage of the whole group, the over-discharge protection is activated, and the battery group stops
supplying power to the outside world. When the overall voltage of the battery pack and the voltages of all
single cells recover to above the over-discharge recovery voltage value, the over-discharge protection state
is released. For protection parameters, please refer to Articles 3 and 4 of over-discharge protection
parameters in Table 5.
Charging Over-voltage Protection
When the battery module is charging, when any single battery is higher than the over-voltage protection
value of the system or the voltage of the whole group of batteries is higher than the protection voltage value
of the whole group, the over-discharge protection is activated, and the battery pack stops charging. When
the overall voltage of the battery pack and the voltages of all single cells are restored to above the
over-voltage recovery voltage value, the over-voltage protection state is released. For protection parameters,
see items 1 and 2 of over-voltage protection parameters in Table 5.
3.3.2.Current Protection Function
Charge Over-current Protection
In the case of module charging, when the charging current is greater than the protection value, the system
stops charging. Remove the protection after removing the charger. For protection parameters, refer to items
5 and 6 of over-current parameters in Table 5.
Discharge Over-current Protection
In the case of module discharge, when the discharge current is greater than the protection value, the system
stops charging. Release the protection after removing the load. For protection parameters, refer to items 7
and 8 of over-current parameters in Table 5.
Short Circuit Protection
In the working state of the module, when the discharge current far exceeds the normal working current
value, the default is to reach the short-circuit protection condition, and the battery pack stops supplying
power to the outside world. For protection parameters, see item 9 of short-circuit protection parameters in

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Table 5.
3.3.3.Temperature Protection Function
Cell Temperature Protection
The temperature sensor detects the surface temperature of the battery cell. When the battery temperature
is higher than 65°C or lower than -5°C, the charging temperature protection is activated and the battery is
stopped from charging; when the battery temperature is higher than 70 °C or lower than -30°C, Start the
discharge temperature protection, the battery stops external discharge. For protection parameters, see item
10 of temperature protection parameters in Table 5.
Ambient Temperature Protection
The temperature sensor detects the temperature around the battery pack. When the temperature is higher
than 60°C or lower than -5°C, the charging temperature protection is activated and the battery is stopped
charging; when the temperature is higher than 70 ° C or lower than -20 ° C, the discharge temperature is
activated. protection, the battery stops external discharge. For protection parameters, see item 11 of
temperature protection parameters in Table 5.
PCB Overheating Protection
The temperature sensor detects the temperature of the heating element on the PCB board of the BMS. When
the temperature is higher than 115°C, the PCB overheating temperature protection is activated, the battery
charging and discharging actions are stopped, and the operation is resumed after the temperature drops to
the recovery point. For protection parameters, see item 12 of temperature protection parameters in Table 5.
3.3.4.Cell Balancing
Smart Cell Balancing
In battery charging state, when all battery voltages are higher than 3.40V, and the difference between the
highest single-cell voltage and the lowest single-cell voltage is greater than 40mV, the balance is turned on.

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Table 5 Protection Function Parameters
No.
Items
Function
Function Parameters
Remark
100Ah
100Ah
200Ah
100Ah
200Ah
1
Voltage
Charging
Single cell
charging
over-voltage
protection
3.7V
Release below
3.5V
2
The whole set of
charging
over-voltage
protection
54.45V
58.4V
52.5V/56V
release
3
Discharging
Single cell
discharge low
voltage
protection
2.7V
Release above
3.0V
4
The whole
group of
discharge low
voltage
protection
42.0V
44.8V
Release above
45V
5
Current
Charging
Alarm value
100-105
Delay 5s
protection
6
Over-current
Protection 2
＞110A
Delay 1s
protection
7
Discharging
Over-current
Protection 1
110A
1s delay
8
Over-current
Protection 2
150A
100ms delay
9
Short circuit
protection
Yes
100ms delay
10
Temperature
Cell
Charge and
discharge
temperature
range
Charging temperature range:﹣5℃~65℃
Discharge temperature range:﹣20℃~70℃
Delay 1s~3s to
confirm
temperature
protection
11
Ambient
Charge and
discharge
temperature
range
Charging temperature range:﹣5℃~65℃
Discharge temperature range:﹣20℃~70℃
12
PCB
Operating
temperature
range
Below 85℃

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3.4.Charging Parameters
In order to ensure the safe use of the battery, the battery should be charged according to the charging
voltage and current required by the battery. The recommended charging parameters are shown in Table 6.
Table 6 Charging Parameters
Model
Charging Parameters
Charging Current
Float Usage (Minimum Value)
Normal Use
Maximum Value
RP-LFP48100（15S）
49V
54.45V
100A
RP-LFP48100（15S）
49V
54.45V
100A
RP-LFP48200（15S）
49V
54.45V
100A
RP-LFP48100（16S）
52V
58.4V
100A
RP-LFP48200（16S）
52V
58.4V
100A
3.5.Discharging Parameters
In order to ensure the normal use of the device and the battery, the battery should be used within the
voltage and maximum discharge current range required by the battery. The specific discharge parameters
are shown in Table 7 below.
Table7 Discharge Parameters
Model
Discharge Parameters
Discharge Current
Discharge Cut-off
Voltage
Recommended Discharge
Voltage
Maximum Value
RP-LFP48100（15S）
42.0V
44.0V
100A
RP-LFP48100（15S）
42.0V
44.0V
100A
RP-LFP48200（15S）
42.0V
44.0V
100A
RP-LFP48100（16S）
44.8V
46.4V
100A
RP-LFP48200（16S）
44.8V
46.4V
100A
Note: Please select a model with enough high current to ensure the normal operation of the equipment.

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4. Installation and Commissioning
4.1.Installation Preparation
Safety Regulations
The installation, operation and maintenance of the RP-LFP48 series home energy storage lithium iron
phosphate battery system should only be carried out by trained and qualified professionals. Before
installation and use, please read the safety precautions and related operating procedures of this product
carefully. The installation process must strictly abide by the following safety regulations and local safety
regulations, otherwise it may cause personal injury or product damage.
Please ensure that the inverter connected to the battery is a qualified power system;
When installing the battery, please ensure that the power system is turned off and the battery pack is
turned off;
All power-saving cables must have corresponding insulation measures, and it is strictly forbidden to
expose the power cord;
Ensure that the battery and the power system are reliably grounded during installation.
Figure 3 Installation Process Diagram

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4.1.1.Installation Environment Requirements
The required environmental conditions are shown in Table 8 below.
Table 8 Use Environment Requirements
Items
Description
Operating
Temperature
Operating temperature range: -20℃~+60℃, recommended operating temperature:
-15℃~+55℃
Storage
Temperature
-40℃ ~+50℃, the recommended storage temperature is 25℃
Relative Humidity
45%~85%, recommended: 45%~60%
Atmospheric
Pressure
86kPa~106kPa
Site Requirements
There is no conductive dust and corrosive gas, no explosion hazard, no vibration and
bumps. Keep away from heat and open flames
4.1.2.Tools and Materials
The tools and materials that may be used are shown in Table 9 below.
Table 9 Toolkit
No.
Items
No.
Items
1
Installation and Instruction Manual (User Manual)
7
Diagonal cutting pliers
2
Screwdriver (slotted, cross)
8
Multi-meter
3
Wrench
9
Clamp meter
4
Needle nose pliers
10
Insulation tape
5
Wire stripper
11
Anti-static bracelet
6
Wire pliers
12
Cable ties
4.1.3.Site Survey
Equipment Inspection
Check the properties of the device directly connected to the battery, which can be user equipment,
switching power supply or other power supply devices.
Check the position and output voltage of the DC interface in the device to confirm whether it meets the
voltage requirements in Table 6.
Check whether the maximum output current of the DC device interface matches the selected battery.
Check the maximum operating current of the equipment powered by the battery, it should be ensured

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that this current is less than the maximum discharge current of the product used in Table 7.
Ground Check
Check and confirm the location of the working ground wire of the power system in the equipment room.
4.1.4.Battery Inspection and Acceptance
On the installation site, check the battery packaging to make sure it's intact;
Check battery box according to the packing list, make sure all the material is complete, if any damaged,
please fill in the receipt;
Please be careful while handling batteries, avoid any damage.
4.2.Installation
4.2.1.Cautions
When begin to install the battery system, you should pay attention to the following matters:
Installation space and load bearing. Make sure that there are sufficient fixed components to install the
battery system, and to ensure that the battery mounting bracket or the cabinet be strong enough to
bear the weight.
Cable specifications. To ensure that the use of the connection of the power supply line can meet the
maximum current requirements of equipment operation.
Project layout. Ensure the whole construction process of power equipment, batteries and other
reasonable layout.
Wiring layout. Ensure that the wiring reasonable, orderly; and consider the moisture-proof, corrosion
prevention.
The whole installation process should wear anti-static wristband.
The installation site should be at least two or more peoples to operate.
CAUTIONS
：
Please ensure the installation site safe before installation.

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4.2.2. Installation Steps
The battery installation steps are shown in Table 10 below.
Table 10 Installation Steps
Step No.
Name
Definition
1
Turn off power supply
The system should be powered off, to ensure that
there is no electric in installation process
2
Mechanical installation
1. Mounting lugs installation
2. Battery fixed installation
3
Electrical installation
1. Grounding cable
2. Power cable installation
3. Connecting equipment installation
4. Communication cable installation
4
Electrical commissioning
Power system commissioning
Step 1. Interruption Of Power Supply
Before installation, please ensure the battery is powered off., at the same time, shutdown the equipment
which need to connect to the battery.
Step 2. Machinery Installation
1. Installation of the mounting bracket. The device is packaged with an attached mounting wall bracket.
Before installing the battery, fix the mounting bracket on the wall to ensure that the installation is tight.
2. Fixed battery installation. Secure the battery module to the mounting bracket to ensure that the battery
pack is securely installed.
Step 3. Electrical Installation
1. Grounding cable. The grounding cable end with screw press-fit fixation in the chassis rear grounding hole,
the other end is connected to the frame ( or cabinet ) grounding copper bar. To ensure the stable
connection.
2. Power cord installation. When using a single battery, the terminal of the battery is directly connected to
the terminal of the device or switching power supply. If multiple batteries are used in parallel, first use the
power cord to connect the batteries in parallel.
3. Communication cable installation. When the battery is used in a single, please skip this step. When a
plurality of batteries used in parallel according to table 3.4, please dial settings for each cell address code
( to ensure that no duplicate address code ), and then connect the communication interface of RJ45-RS485
one by one. Connect the first or last battery module RS485 interface to the PC monitor or SMPS or UPS
controller.

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CAUTIONS
：
If there is any problem during installation, please contact Ruineng in time to avoid
damage to the equipment or cause safety accidents.
4.Communication cable installation. When using the battery alone, skip this step. When multiple batteries
are used in parallel, please set the address code of each battery according to Table 3.4 (make sure there is
no duplicate address code), and then cascade the RS485 communication interfaces. The cascade sequence is
the left side of the battery pack with the lower address bit The RS485 interface is connected to the interface
on the right side of the high address bit, and the RS485 interface on the left side of the highest-order Master
battery is connected to the serial port of the computer through a communication adapter cable (RS485 to
RS232).
Step 4. Electrical Commissioning
When these steps are completed, turn on air switch to start the battery one bye one, then boot on the whole
power system, complete the installation.
CAUTIONS ： If you have any question about the installation, please stop and contact
Realpower technical support immediately. If the battery does not start or control panel ALM lights, please
disconnect the power line inspection and reinstall the start, if still cannot solve please contact Realpower
avoid damage to equipment or cause accidents.
5. Transportation & Storage& Maintenance
5.1. Transportation and Storage
Transportation
According to the provisions of the product can be used in general means of conveyance, but should avoid
throwing, rain fall, strong radiation and corrosion erosion. during transportation, please prevent the
collision and strong vibration.
Storage
When the storage equipment is stored indoors, the ambient air temperature can be 0°C to +30°C, the
average monthly humidity is not more than 90%, and there is no corrosive, flammable and explosive gas in
the surrounding air; the storage warehouse should be ventilated and free of alkali No strong mechanical
vibration, shock, strong electromagnetic field and direct sunlight. The battery is stored at around 50% to
60%, and the battery should be recharged after three months.

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5.2. Alarm & Disposal
When the ALM light on the control panel of the battery case is on, it means that the battery has given an
alarm or has been protected. Please check the cause of the fault through the computer and take
corresponding measures, or go directly to the site to troubleshoot. The following table 5.1 is the main alarm
situation.
Table 11 Alarm and Protection
State
Type
Indicator
Disposal
Charging
Over voltage protection
ALM
Stop charge, check module voltage and charger
Over current protection
ALM
Stop charge, check the settings and limitation
Temperature protection
ALM
Stop charge, wait for the temp recovery
Discharging
Low voltage protection
ALM
Stop discharge, turn to charging mode
Over current protection
ALM
Stop discharge, check if there is an over load
Temperature protection
ALM
Stop discharge, wait for the temp recovery
5.3.Common faults and Solutions
Common faults and solutions are shown in Table 12.
Table 12 Common Faults and Solutions
No.
Fault Phenomenon
Analysis
Solutions
1
No DC output
Low voltage protection
Charge the battery and try again
2
Power supply time is
too short
Battery capacity lack or not full
power
Maintenance or replacement
3
Battery can not be
charged to full
Power system DC output voltage
falls below the minimum charge
voltage
Regulating DC output voltage of
power supply to battery suitable
charging voltage
4
ALM LED always lights
Power line connection short
circuit
Disconnect the power cable and
check all cables
5
The battery output
voltage is unstable
Battery management system do
not operate normally
Press the reset button to reset the
system, then reboot the system
6
Communication lost or
data fault
Communication settings fail
Check the communication settings
and correct it

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CAUTIONS: If you have some special technical problems which not mentioned above, please
contact Realpower technical staff.
Legal Statement
This information copyright is belonged to Shenzhen Realpower Technology co., Ltd Without permission,
shall not be reproduced and copied.