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

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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