LYBESS LFP Wall-2500 User manual

Wall-mounted Home Battery
System User Manual
LFP Wall-2500
Anhui LEAD-WIN New Energy Technology Co., Ltd.
First floor, No. 8-5, Liandong U Valley Shushan
International Enterprise Port, 1499 Zhenxing Road,
Shushan District, Hefei City, Anhui, China
Tel: [phone]
E-mail: [e-mail]
Website: www.lybess.com
Get to know us

1. Product Information
2.
3.
4.
C O N T E N T S
Safety Information
Attentions
Specifications
1.1 Battery Overview
1.2 Appearance
1.3 Front Panel
1.4 Dimensions
1.5 Capacity Options
1.6 Parallel Communication
1.7 Recommended Settings
2.1 General Safety
2.2 Personal Safety
2.3 Electrical Safety
2.4 Transportation Safety
About this Document
This document describes the installation, electrical connection, operation and commission of 51.2V 50Ah Wall-mounted Battery System (hereafter
simply put LFP Wall-2500). Before installing and operating LFP Wall-2500, ensure that you are familiar with product features, functions, and safety
precautions provided in this document.

1 Product Information
1.1 Battery Overview
The battery is a wall mounted lithium battery pack which consists of long span LiFePO4
battery cells and functional BMS. It can store and release electric energy based on the
requirements of the inverter controller. It is mainly for home energy storage system.
Features
LiFePO4 prismatic cell
＞6000 cycles @0.5C conditions
Maximum 1C charge and discharge capability
Wall mounted IP 65 grade
Be extended to 8 packs maximum
Protective and active BMS allows greater reliability and control
Building in terminal design
Fully recyclable at the end of life
Compact
1.2 Appearance
1.3 Front Panel
(1) Wall mount
Please mount bracket on the wall by six M8 bolts firstly. Then lift battery and stuck
with bracket.

(2) Wiring block
2P (1P positive and 1P negative) power interface, printed by "+" and "-",
front-mounted wiring method, positive and negative terminals are insulated by
thermoplastic polyester (PBT) insulating sheets.
(3) Switch
BMS switch, when it is turned off, the BMS can be put to sleep and the charge and
discharge MOS transistors will be turned off at the same time; normal operation
will be restored after it is turned on. Note: Please do not turn on the system switch
when the product is not in use to avoid self-consuming the lithium battery.
Version 1：CAN2.0B/RS485
(4) CAN2.0B COMM to inverter
BMS supports the function of CAN communication for battery pack uploading，
baud rate of 500K. CAN communication interface adopts 8P8C network cable
interface. It can communicate with inverter or CAN TEST through CAN interface.
When the battery pack is connected, RS485 communication is connected，the data,
status and information of the battery pack can be uploaded to PCS through CAN
communication.
CAN communication interface definition:
1.3 Front Panel
Pins
Definition
1、2、7、8
NC
4
CAN-H
5
CAN-L
3、6
GND
(5) RS485 COMM to parallel battery
The BMS has RS485 communication for multiple battery pack collections, and the
baud rate is 19200bps. RS485 communication interface adopts 8P8C network cable
interface.
RS485 pin interface definition (RJ45-8P8C)
Pins
Definition
1、8
RS485-B
2、7
RS485-A
3、6
GND
4、5
NC
Version 2：RS485/RS485
(4) RS485 COMM to inverter
The BMS has RS485 communication for multiple battery pack collections, and the
baud rate is 9600bps. RS485 communication interface adopts 8P8C network cable
interface.
RS485 pin interface definition (RJ45-8P8C)
Pins
Definition
1、2、7、8
NC
4
RS485-A
5
RS485-B
3、6
GND
(5 )RS485 COMM to parallel battery
The BMS has RS485 communication for multiple battery pack collections, and the
baud rate is 9600bps. RS485 communication interface adopts 8P8C network cable
interface.
RS485 pin interface definition (RJ45-8P8C)
1.3 Front Panel

Pins
Definition
1、8
RS485-B
2、7
RS485-A
3、6
GND
4、5
NC
1.3 Front Panel
System
Status
RUN
ALM
SOC
Definition
●
●
●
●
●
●
switch on
sleeping
off
off
off
off
off
off
All off
standby
normal
on
off
SOC indicators
standby
Charging
normal
on
off
SOC indicators
Flashing
OC ALM
on
Flashing
SOC indicators
Flashing
OC ALM
on
off
SOC indicators
OT ALM
on
Flashing
SOC indicators
Dis
charging
normal
Flashing
off
SOC indicators
SOC indicators
alarm
Flashing
Flashing
All
Protect-
ions
off
on
off
off
off
off
Fully discharged or
48 hours no
instructions, going
into sleep mode
UV
Protect-
ions
off
off
off
off
off
off
Stop discharging
(6) LED indicators
1.3 Front Panel
(7) Red alarm indicator, normally off. And always on under fault conditions with beep.
(8) SOC indicator, four green LED lights to display the real-time SOC capacity of the
lithium battery pack.
Status
charge
discharge
SOC
L4●
L3●
L2●
L1●
L4●
L3●
L2●
L1●
0～25%
off
off
off
flashing
off
off
off
on
25～50%
off
off
flashing
on
off
off
on
on
50～75%
off
flashing
on
on
off
on
on
on
≥75%
flashing
on
on
on
on
on
on
on
RUN ●
on
flashing

(9) DIP Switches
Parallel DIP switch definition: For multi-battery communication when the battery
packs are connected in parallel, use the DIP switch to distinguish different pack
addresses, and the hardware address can be set by the DIP switch on the panel
below.
LFPWall-2500
51B100T
1.3 Front Panel 1.4 Dimensions
1.5 Capacity Options
The battery can be parallelly connected for extending power(kW) and energy(kWh).
ØThe maximum power(kW) is limited by main cables from master battery to
inverter.
ØThe maximum 8 battery packs can be parallelly communicated.

1.5 Capacity Options
For example, ONE PACK is 5.12kWh,
2.56kWh
5.12kWh
10.24kWh
AND MORE ……
1.6 Parallel Communication
When multiple packs are connected in parallel, the RS485 interface is used as the
parallel communication interface. The master pack can read the sum of the slave
battery data of all parallel packs through the RS485 communication.
Two packs RS485 parallel connection 1：
More than two packs RS485 parallel connection 2：

1.7 Recommended Settings
Lithium battery pack is not as the same as lead-acid battery, therefore the devices
which you connect with the battery pack for charging and discharging, such as
inverters, MPPT charger controllers or UPS, please implement pre-settings as
recommended settings as below before start.
Setting
LFPWall-2500
Max. Charging Voltage
58.4V
Floating Charging Voltage
56V
Max. Charging Current
50A*N
Max. Discharging Current
50A*N
Cut-off Voltage
44.8V
Notes: “N” means the number of battery packs connected in parallel.
2 Safety Information
2.1 General Safety
Please carefully read the manual safety precautions, and observe all the safety
instructions on the equipment and in this document.
The "DANGER”，"WARNING", and "NOTICE” statements in this document do not
cover all the safety instructions. They are only supplements to the safety instructions.
For user safety and utilization efficiency of this manual, a list of symbols are
designed to alert people from danger. You must understand and comply with the
emphasized information to avoid personal injury and property damage. Relative
safety symbols have been listed below.
DANGER indicates a hazardous situation
which, if not avoided will result in serious
injury and fire.
WARNING indicates a hazardous
situation which, if not avoided will result
in property loss or void warranty.
NOTICE indicates normal situation which,
if not avoided will result in that battery
doesn't work.
Danger
Warning
Notice
Follow local laws and regulations when installing, operating, or maintaining the
equipment. The safety instructions in this document are only supplements to local
laws and regulations.

Electrical Safety
2.3 Electrical Safety
ØBefore installation, ensure that the equipment is intact. Otherwise, electric shocks
or fire may occur.
ØDo not connect or disconnect power cables when battery is power-on. Which may
cause electric arcs and sparks more overfire or personal injury. Before connecting
a power cable, check the positive or negative connectors are correct.
ØBatteries are not allowed in series.
ØDifferent batteries should not be connected in parallel.
ØDo not connect battery with AC directly.
ØDo not connect battery with PV wiring directly.
ØDo not connect batteries in series.
ØDo not connect battery to faulty or unqualified inverter or charger.
ØDo not create short circuits with the external connection.
ØMake sure the grid is cut off and the battery is powered off before maintenance.
ØMake sure the earth cable is connected correctly.
ØRecharge battery in every six months.
ØRecharge battery within 10 days after battery is fully discharged.
ØPlease engage greater than or equal to two batteries when maximum charge
current is more than 50A.
ØMake sure battery cable placement is installed correctly.
ØWhen the battery is being installed or repaired, make sure the battery is powered
off and using a multimeter to make sure there is no voltage in the positive and
negative terminals.
2.2 Personal Safety
Personal Requirements
People who plan to install or maintain battery equipment must be trained,
understood all necessary safety precautions, and are able to perform all operations
correctly.
Only qualified professionals or trained people are allowed to install, operate, and
maintain the equipment.
Personal Safety
ØDo not place battery at a children or pet touchable area.
ØDo not touch the energized battery, as the enclosure is hot.
ØDo not touch the energized battery terminals.
ØDo not stand on, lean on, or sit on the battery.
2.3 Electrical Safety
Symbols on Battery
There are some electrical symbols on battery relate to electrical safety. Please make
sure you have fully understand them before installation.
Electrical danger
Voltage exits when the battery is powered on.
Only qualified engineers are allowed to operate.
Earth connector
Earth connection.
DC positive and
negative connectors
Identify positive and negative connectors of DC
power source.
CE mark
The product meets CE certification.
WEEE tag
Can't leave battery as garbage disposal.
Recycle
Battery can be recycled.

2.3 Electrical Safety
ØPlease use dedicated insulated tools for install and maintenance.
ØPlease make sure all batteries are power-off when multiple parallel connection.
ØPlease check lights on sequence when battery power-on.
ØPlease make sure communication connection connect correctly with battery and
inverter.
ØPlease make sure ADDS dip switch settings are correctly for single or multiple
batteries.
ØPlease check inverter alarm or SOC reading when there is BMS communicated
with inverter.
Environment Safety
ØEnsure that the equipment is installed in a dry and well-ventilated environment.
ØThe installation position must be away from direct sunlight and rain.
ØThe installation position must be far away from fire sources.
ØThe installation position must be far away from water sources such as taps, sewer
pipes, and sprinklers to prevent water seepage.
ØThe bracket must be installed solidly and horizontally.
ØDo not expose the equipment to flammable or explosive gas or smoke.
ØDo not perform any operation on the equipment in such environments.
ØThe operation and service life of the battery depends on the operating
temperature. Operate the battery at a temperature equal to or better than the
ambient temperature. The recommended operating temperature range is from
0°C to 30°C.
2.3 Electrical Safety
2.4 Transportation Safety
ØThe products passed certification UN38.3.
ØThe products have MSDS.
ØThe products belong to class 9 dangerous goods.
ØPlease protect the packing case from the below situations.
ØBeing dampened by rains, snows, or falling into water.
ØFalling or mechanical impact.
ØBeing upside-down or tilted.

3 Attentions
Before using the battery pack, please read the manual carefully to understand the
usage and precautions;
Non-professionals shall not disassemble the battery without authorization;
Be sure to use the original special charger for charging or the charger agreed by
both parties;
During use or storage, if you find abnormal heating, discoloration, deformation or
other abnormalities in the battery, please stop using the battery;
The working temperature of the battery is -10~55℃;
The storage temperature of the battery is -10~35℃, please place the battery in a
dry and cool environment;
Do not bump, apply external force or make the battery fall from high altitude
during use;
If the battery is not used for a long time, the battery pack needs to be charged to
more than 80%, turn off the power switch, and store it in a ventilated and dry
environment.
4 Specifications
Model
LFP Wall-2500
Usable Capacity
2.56kWh
Nominal Voltage
51.2V
Nominal Capacity
50Ah
Discharge Voltage Range
44.8-58.4V
Max. Charging Current
50A
Recommended charging
Current
25A
Max. Discharging Current
50A
Recommended discharge
Current
25A
Max. Output Power
2560W
Charge Voltage
58.4V
Modules Connection
1-8 in parallel
Communication
CAN OR RS485
Cycle Life
＞6000 ( 85%DOD 0.5C 25℃ )
Working Temp. Range
Charge: 0℃~+55℃
Discharge: -10℃~+55℃
Storage Temperature(℃)
-10℃~+35℃
Net Weight (kg)
31kg
Gross Weight (kg)
33kg
Product Dimension (mm)
537*165*365mm
Package Dimension (mm)
609*257*436mm