Alpha Outback Energy AOESS48V-LFP4100 User manual

User Manual: revA_3521
Page 1of 24
Description
This manual describes in detail the methods and steps for safe installation and operation of AOESS48V-
LFP4100 series lithium battery pack. Please read the instructions carefully before installing the product
and during the entire installation process. If you have any questions on thismanual, please do not
hesitate to contact Alpha and Outback Energy GmbH.
Tips
The information contained in this manual is accurate when it’s issued. Alpha and Outback Energy GmbH
reserve right to change specifications (such as optimization, upgrade or other operations) without prior
notice. In addition, the figures in this document are only used to help understand system configuration
and installation instructions, which may be different from the actual items at the installation.
Legal Terms
Alpha and Outback Energy GmbH will retain the copyright of this document, do not extract,
copy or translate in any ways without the written permission.
Disclaimer
Please read this manual and specs carefully before the installation, operation or maintenance, be familiar
with this equipment and follow the local safety regulations and related operating procedures. At the same
time, only qualified professionals are allowed to install, operate and maintain the system, otherwise it may
cause product damage or personal safety risks. The precautions mentioned in this manual are under
normal condition, if there’s any special use environment, please contact Alpha and Outback Energy
GmbH for confirmation.
Any actions (such as use, intentional damages, etc.) against the general safety operation, or do not follow
this manual and technical specifications, the users will no long to have the warranty and qualification of
this product. Meanwhile, the manufacturer will be not responsible for the product damage, personal injury.

User Manual: revA_3521
Page 2of 24
Content
1. SafetyWarning............................................................................................................................................... 3
1.1 Safety precautions ..........................................................................................................................3
1.2 Wearable device.............................................................................................................................4
1.3 Other Tips........................................................................................................................................4
1.4 Emergency safety measures...........................................................................................................5
2. Product Overview.......................................................................................................................................... 6
2.1 Background.....................................................................................................................................7
2.2 Product features..............................................................................................................................6
2.3 Principle...........................................................................................................................................8
3. Product description ...................................................................................................................................... 8
3.1 Basic parameters............................................................................................................................8
3.2 Interface definition...........................................................................................................................8
3.3 PerformanceSpecification............................................................................................................12
3.3 Protection......................................................................................................................................14
4. Installation and Usage ................................................................................................................................ 14
4.1 Installationpreparation..................................................................................................................14
4.1.1 Safety regulations...........................................................................................................15
4.1.2 Environment requirement ...............................................................................................16
4.1.1 Installation Tools.............................................................................................................16
4.1.4 Safety Tips......................................................................................................................16
4.2 Unpack..........................................................................................................................................16
4.2.1 Unpack precautions........................................................................................................17
4.2.2 Packing list......................................................................................................................17
4.3 Installation.....................................................................................................................................17
4.3.1 Installation check ............................................................................................................17
4.3.2 Installation procedures....................................................................................................18
5. Maintenance and Abnormality handling................................................................................................... 21
5.1 Activation and dormancy.............................................................................................................221
5.1.1 System activation............................................................................................................21
5.1.2 System Dormancy...........................................................................................................21
5.2 Regular maintenance....................................................................................................................22
5.3 Alarm and abnormality handling...................................................................................................22
6. Transport,Storage....................................................................................................................................... 24

User Manual: revA_3521
Page 3of 24
！
Warning
If fail to follow the precautions described may cause serious personnel injury or property damage.
1. Safety Warning
1.1 Safety precautions
Explosion risk
▪Do not impact the battery with heavy objects.
▪Do not squeeze or pierce the battery pack.
▪Do not throw the battery pack into the fire.
Fire risk
▪Do not expose the battery pack to the condition over 100°C.
▪Do not put the battery near a heat source, such as a fireplace.
▪Do not expose the battery pack to direct sunlight for a long time.
▪Do not allow the positive and negative connectors of the battery to connect the conductive
objects atthe same time.
Electric shock risk
▪Do not allow non-technical personnel to disassemble the battery pack.
▪Do not touch the battery pack with wet hands.
▪Do not expose the battery pack to moisture or liquid environment.
▪Do not mix batteries from different manufacturers or different kinds, types or brands.
Damage risk
▪Do not allow the battery to contact with liquid, short-circuit or reverse the positive and negative
terminals of the battery.
▪Do not use chargers or charging devices unapproved by the manufacturer to charge the
battery.
▪Do keep clear on top of the battery pack.

User Manual: revA_3521
Page 4of 24
1.2 Wearable device
It is strongly recommended to wear the following safety equipment when installing and handling the
batterypack.
Insulated gloves
Safety Glasses
Safety Shoes
1.3 Other Tips
All the product are strictly inspected before shipment, please contact us for replacement if you
noticethere’s any defectives such as swelling.
Do not disassemble batteries and components; otherwise the manufacturer will not be
responsible for any damage caused by unauthorized disassembly or repair.
Do enable the battery to be safely grounded before use to make sure the system in safe and
normaloperation.
Please ensure that the electric parameters of these devices are compatible mutually before
connecting the battery to other devices.
Please take the environmental factors into careful considerations to ensure that the system can
workin a suitable condition as the environment and storage methods have a certain impact on the
servicelife and reliability of this product.

User Manual: revA_3521
Page 5of 24
1.4 Emergency safety measures
Water invasion: Please cut off the AC power supply of the system first and then disconnect all switched
under the premise of ensuring safety.
Electrolyte or gas leakage: Please avoid contacting with the liquid or gas leakage if the electrolyte of
battery pack leaks. While if you have been exposed to leakages, please take these steps immediately:
▪Gas Inhalation: Evacuate the people in the contaminated area and seek medical aid as soon as
possible.
▪Eye Contact: Flush your eye with clean and flowing water for 15 min, and seek medical aid as soon
aspossible.
▪Skin Contact: Thoroughly rinse the exposed area with soap and water to be sure no chemical or
soap isleft on them, and seek medical aid as soon as possible.
▪Swallowing: Try to induce vomiting, seeks medical aid as soon as possible immediately.
Fire: Please use carbon dioxide fire extinguisher rather than liquid to put out fires.

User Manual: revA_3521
Page 6of 24
2. Product Overview
2.1 Background
The lithium ion battery AOESS48V-LFP4100 adopts advanced LiFePO4 technology so the
battery module has multiple advantages of long cycle life, compact structure, light weight, stable
performance, which is widely used in the various environment. The system is integrated with
smart battery management system and monitor module to meet the unattended requirements, which is
very suitable for the field of backup power supply, such as PV energy storage, Micro base station, UPS,
etc.
2.2 Product features
Adopt high performance LFP cells with long lifespan, high safety and wide temperature range.
With high energy density, compact structure, light weight, and no pollution.
Built-in BMS with the management functions to battery voltage, current, temperature and
batteryhealth.
With LED display for SOC and operating status, which is easy to read battery status.
With Communication interface, there’re RS485 and CAN by default, and optional RS232.
Use smart balancing module to ensure the consistency of battery and to extend the service life.
With intelligent design to conform to the national standard requirements, and support for
remotemeasurement, remote communication, remote control, remote adjustment.
With optional heating function to be used in extremely low temperature area.
With long lifespan of floating charge, stable performance and maintenance-free.
With ultra-low consumption of BMS, self-discharge rate and capacity loss rate.
Equipped with BMS secondary protection function and ultra-high system reliability

User Manual: revA_3521
Page 7of 24
2.3 Principle
After starting the system, when the inverter works at on-grid mode, the photovoltaic solar energy will give
priority to supply the load if the photovoltaic is sufficient; if there is any surplus, it can be used to charge
the battery first; and for more surplus, it will be fed back to the grid in case inverter allows that option. If
the photovoltaic solar energy is insufficient or at night, it will automatically switch to the battery to deliver
electric power to the load and when it run out of energy also, the excess power will be supplied by the
grid.
When the inverter works at off-grid mode, both the load and battery are charged by photovoltaic solar
energy during the day, and the load will be supplied by the battery at night. Below is the overall framework
of the system:
Figure 1. Example diagram with AIO Solar inverter

User Manual: revA_3521
Page 8of 24
3. Product description
3.1 Basic parameters
See the basic parameter of AOESS48V-LFP4100 lithium
battery as table3-1:
Table 3-1 Specification
Model
Parameter
Nominal Voltage (V)
51.2
Nominal Capacity (Ah)
100.0
Energy (KWh)
5.12
Width (mm)
442.0±2
Height (mm)
177.5±2
Depth (mm)
450±2
Weight (kg)
~47kg
3.2 Interface definition
See the interface description of AOESS48V-LFP4100 series lithium battery as table 3-2, please notethe
position of the corresponding interface varies from model to model but with same definition is same.
Table 3-1 battery interface
1 2 3 4 5 6 7 8 9 10 11
Figure 2. Battery front view

User Manual: revA_3521
Page 9of 24
Table 3-2 interface description
No
Items
Usage description
Remark
1
Mounting ear
Used to fix with the rack or cabinet
2
Handles
For the handling, installation and
disasembly of battery
3
Positive terminal
Used to connect the charger or the
positive of the load device
2Pin
4
CAN communication
For the connection of internal CAN
communication
See Table3-3
5
LED indicator *4
Used to indicate the remaining
capacity of the battery
See Table 3-6
6
ALM
Used to indicate the battery
abnormality
See Table 3-6
7
RUN
Used to indicate the operating
status of the battery
See Table 3-6
8
Dial switch address
Used to set the address bit of
battery module when multiple
batteries are wired in parallel.
See Table 3-5
9
RS 485 communication
Used to connect with inverter or
upper computer
See Table 3-3
10
Reset
For manual switch, reset or other
operations in the system
See Table3-4
11
Negative terminal
Used to connect the charger or the
negative of the load device
2Pin
Table 3-3 Communication PIN description
PIN No.
RS485
CAN
1
RS485_A
CAN_L
2
RS485_B
CAN_H
3
NC
SGND
4
NC
NC
5
NC
NC
6
NC
SGND
7
RS485_B
CAN_H
8
RS485_A
CAN_L

User Manual: revA_3521
Page 10 of 24
Table 3-4 Button description
Activate
When the BMS is in dormancy mode, press and hold the button for 2s and
release it.
It will back to normal situation after the LED indicators light up in turn.
Dormancy
When the BMS is in active state, press and hold the button for 3s and release it. It
will back to normal situation after the LED indicators light up in turn.
Reset
When the BMS is in standby or working mode, press and hold the button for 6s
and release it, and the BMS will be reset, the system restart.
Table 3-5 Dial switch address
No.
Dial switch address
RS485
CAN
#1
#2
#3
#4
#5
#6
0
OFF
OFF
OFF
OFF
OFF
OFF
Pack 0
Invalid
1
ON
OFF
OFF
OFF
OFF
OFF
Pack 1
Master
2
OFF
ON
OFF
OFF
OFF
OFF
Pack 2
Slave
3
ON
ON
OFF
OFF
OFF
OFF
Pack 3
Slave
4
OFF
OFF
ON
OFF
OFF
OFF
Pack 4
Slave
5
ON
OFF
ON
OFF
OFF
OFF
Pack 5
Slave
6
OFF
ON
ON
OFF
OFF
OFF
Pack 6
Slave
7
ON
ON
ON
OFF
OFF
OFF
Pack 7
Slave
8
OFF
OFF
OFF
ON
OFF
OFF
Pack 8
Slave
9
ON
OFF
OFF
ON
OFF
OFF
Pack 9
Slave
Note: The BMS of master pack does not support to connect the inverter and the host
computer at thesame time, otherwise it will occur the communication errors.

User Manual: revA_3521
Page 11 of 24
Table 3-6 LED indicator description
Mode
Normal/Alarm/
Protection
RUN
ALM
LED indicator
Description
●
●
●
●
●
●
Shutdown
Dormancy
OFF
OFF
OFF
OFF
OFF
OFF
ALL OFF
Standby
Normal
FLASH1
OFF
According to battery state of
charge
Standby
Warning
FLASH1
FLASH3
Low voltage
Charge
Normal
ON
OFF
According to battery state of
charge(highest SOC LED:
FLASH2)
All alarm except
the over
charge
Warning
ON
FLASH3
overcurrent
OFF
ON
OFF
OFF
OFF
OFF
Stop charging
Discharge
Normal
FLASH3
OFF
According to battery state of
charge
Warning
FLASH3
FLASH3
Under
voltage
OFF
FLASH3
OFF
OFF
OFF
OFF
Stop charging
Over current,
short circuit
OFF
ON
OFF
OFF
OFF
OFF
Stop charging
Temperature
Protection
OFF
ON
OFF
OFF
OFF
OFF
Stop charging/
discharging
Failure
Cell failure
NTC failure
Sensor failure
MOS failure
Charger HV
failure
OFF
ON
OFF
OFF
OFF
OFF
Stop charging/
discharging
Status
Charge
Discharge
Capacity indicator
L4●
L3●
L2●
L1●
L4●
L3●
L2●
L1●
SOC (%)
0～25%
OFF
OFF
OFF
FLASH2
OFF
OFF
OFF
ON
25～50%
OFF
OFF
FLASH2
ON
OFF
OFF
ON
ON
50～75%
OFF
FLASH2
ON
ON
OFF
ON
ON
ON
75～100%
FLASH2
ON
ON
ON
ON
ON
ON
ON
Running indicator●
ON
FLASH (FLASH3)
FLASH
ON
OFF
FLASH1
FLASH2
FLASH3

User Manual: revA_3521
Page 12 of 24
！
Attention
The battery pack will stop working when the ambient temperature exceeds the operating range, so the recommended working
temperature range is 15℃to 35℃. Frequently used in the severe environment will deteriorate its performance and cycle life.
3.3 Performance Specification
Items
AOESS48V-LFP4100
Rated voltage
51.2V
Voltage range
40.0~57.6V, Shipping voltage>51.2V
Charge voltage
56.0~57.6V
Float charge voltage
54.4~55.2V
Inverter Cut-off voltage
48.0~51.2V
BLVD
40.0~43.2V
Nominal energy
5.12KWh
Nominal capacity
100Ah
Standard charge current
≤10A
Max. charge current
50A
Standard discharge current
≤50A
Max. discharge current @25℃
According to the limited value of BMS if communicate
100A( No communication, ≤35℃)
Pulse discharge current
<100A@1s
Communication
RS485 /CAN
Operation temperature1
Charge: 0~45℃Discharge:-10~55℃
Storage temperature
0℃<T<30℃
＜6 months, Keep dry and ventilated
-10℃<T<45℃
＜3 months, Keep dry and ventilated
Recommended environment
15～35℃, 5～75%RH

User Manual: revA_3521
Page 13 of 24
3.4 Protection
Items
Description
Remark
Cell/PACK high-voltage
When charging, the system will stop charging if any
cell or PACK voltage reach the protection value and
itwill be released only when both Pack and cell
voltage back to the release voltage range.
Automatc
recovery
Cell/PACK low-voltage
When discharging, it will reach over-discharged
protection of battery to stop discharging if any cell or
PACK voltage is under the protection value and it
willbe released only when all the cell voltage back to
therelease voltage range.
Can Automatic
recovery. Please
charge timely,
otherwise it maybe
in Low-powermode
to be over-
discharged.
High temperature
When the battery cell, MOS, and ambient
temperature are higher than the set value, the
systemwill stop charging or discharging
according to the category, or disconnect at the
same time.
Automatc
recovery
Low temperature
When the battery cell, MOS, and ambient
temperature are higher than the set value, the
systemwill stop charging or discharging
according to the category, or disconnect at the
same time.
Automatc
recovery
Charge overcurrent
When the charging current is higher than the
protection value, the system will stop charging. And
itwill release from the protection when the system
delays after rated time. Please note the maximum
charging current provided by power supply should
not exceed the protection value when using the
battery.
Automatic recovery.
If locked after three
consecutive times,
manualintervention
is required.
Overload
When the discharging current is higher than the
protection value, the system will stop discharging.
And it will release from the protection when the
system delays after rated time. Please note the
maximum discharging current requested by the load
should not exceed the protection value when
using the battery.
Automatic recovery.
If locked after three
consecutivetimes,
manualintervention
is required.

User Manual: revA_3521
Page 14 of 24
Items
Description
Remark
Short circuit /
ReversedPolarity
Do not short-circuit
Release from protection when
removing the loador charging
the battery
Temperature, Voltage,
Current Abnormal
Enter the failure mode, switch off the
circuit breaker, no charging and
discharging.
Manual intervention
dormancy mode
After reaching a certain condition, it
will be in the dormancy mode
Recoverable
4. Installation and Usage
4.1 Installation preparation
4.1.1 Safety regulations
Only qualified professionals are allowed to carry out the installation, operation and
maintenance of AOESS48V-LFP4100 series lithium batteries. Please read this manual and
specs carefully before the installation, be familiar with this equipment. During the installation
process, please strictly follow the local safety regulations and related operating procedures,
and pay attention to the following points:
1. Confirm the inverter is produced by formal manufacturer and compatible with the
lithium battery,and check whether the each parameters meet the requirements of
section 3.3.
2. Please ensure all devices are shut-down before installation, and follow the
manufacturer'sspecifications and warnings.
3. Confirm the cable specs meet the requirements with neat wiring layout to avoid
being exposed ofthese cables when operating the power equipment.
4. Ensure the battery and the power system are reliably grounded during installation.

User Manual: revA_3521
Page 15 of 24
4.1.2 Environment requirement
The operating environment shall meet the following requirements:
Category
Description
Working temperature
-10℃-55℃
15℃-35℃(optimal temperature)
Relative humidity
0%~85%, No condensation
Altitude
<3000m
On-site requirement
Keep away from heat, direct sunlight;
No corrosive, explosive, or flammable gas;
No conductive dust that will damage the insulation;
Completely isolated from water, and no flammable or
explosivematerials nearby.
4.1.3 Installation Tools
Installation Tools & details
Screwdriver(slot, cross)
Multi-meter
Wrench
Clamp meters
Diagonal pliers
Insulating tape
Needle nose pliers
Thermometer (observe the installation environment)
Clamping pliers
Anti-static bracelet
Wire stripper
cable ties
4.1.4 Safety Tips
Please equip with a self-contained breathing apparatus and carbon dioxide fire extinguisher that meets
regional/international standards in the vicinity of where the lithium battery placed to make sure the safety.

User Manual: revA_3521
Page 16 of 24
4.2 Unpack
4.2.1 Unpack precautions
Please load and unload it in accordance with the specified requirements to prevent sun and rain
whenyou receive the equipment.
Please check and confirm the goods (such as quantity, package appearance, etc.) according
to the"delivery list" before unpacking.
Do light take and put during unpacking process to protect the surface coating of the object;
Please record and feedback to the manufacturer if the inner packing is damaged after unpacking.
4.2.2 Packing list
One carton contains the items listed below, please check carefully after unpacking.
PACK
Communication (optional)
Paper/E-User Guide
Factory report & BOM
4.2.3 wiring harness
Provided:
MODULE to MODULE(A)
300mm
Communication cable
1
MODULE TO MODULE (POSITIVE)
250mm
Power cable in parallel
1
MODULE TO MODULE (NEGATIVE)
250mm
Power cable in parallel
1
MODULE TO MODULE(B)
300mm
Ground cable
1
Each MODULE
/
CAN TERMINAL Resistor
1
Provided
MODULE TO MODULE(A)
MODULE TO MODULE (POSITIVE)
MODULE TO MODULE (NEGATIVE)

User Manual: revA_3521
Page 17 of 24
MODULE TO MODULE(B)
4.3 Installation
4.3.1 Installation check
Please check again by on-site personnel on the following conditions or equipment whether meet the
requirements before installation:
Check if there’s enough space for installation, and if the load-bearing capacity of the bracket or
cabinetmeets the weight requirements
Check whether the power cable used meets the maximum current requirement for operation;
Check whether the overall layout of power supply equipment and batteries at the construction
site isreasonable;
Check whether the installer is wearing anti-static wristband
Check whether there’re two people on the construction site for installation work
Check if there’s potential risks at location of installation site, e.g. flooding, sun exposure,
corrosion, andsalt spray

User Manual: revA_3521
Page 18 of 24
4.3.2 Installation procedures
4.3.2.1 Get the battery ready
1. Get the battery ready, ensure all the battery indicator is in OFF, and confirm whether the
appearanceof the battery is normal;
2. Confirm both the battery breaker and the system breaker that connected the battery with
inverter are disconnected.
3. Turn on the signal switch of the battery, observe whether there is alarms on the panel,
measure it with multi-meter and record battery voltage, then check if it meets the parallel
standard: open circuit voltage difference < 0.5V;
4. After confirming that everything is OK, turn off the battery and put it at the installation
preparation areafor ready-to-install:
Figure 3. Placement description

User Manual: revA_3521
Page 19 of 24
4.3.2.2 Structure and electrical installation
1. Get the cabinet ready and assemble it as integrator requested to ensure the cabinet is
installed horizontally and reasonable location layout;
2. Prepare all the battery packs, place the batteries on the cabinet tray via manual-lifter, and
push the batteries into the cabinet, then fix the battery mounting ears to the cabinet through
the crown-nuts;
3. Please double check the battery is in shut down and disconnect the circuit breaker, unscrew
the positive/negative terminal bolts of the battery pack, then connect the batteries to the
positive/negative busbar through cables;
4. Unscrew the grounding screw, connect the battery and the grounding bus bar of cabinet
through the yellow-green flexible wire to ensure that all connections are reliable
5. Connect the CAN communication interface between the batteries, set the dial switch address
as Table 3-5, and insert the matching resistance terminal into the CAN port at the end of
battery, as Figure 4.
Figure 4. Wiring example for parallel connection