INSTRUCTION
MANUAL
Lithium Ion Batteries
MODEL SKU
VT-48280 12230
INTRODUCTION
Thank you for selecting and buying V-TAC Product. V-TAC will serve you the best. Please
read these instructions carefully & keep this user manual handy for future reference. If you
have any another query, please contact our dealer or local vendor from whom you have
purchased the product. They are trained and ready to serve you at the best.
MULTI-LANGUAGE
MANUAL QR CODE
Please scan the QR code
to access the manual in
multiple languages.
IN CASE OF ANY QUERY/ISSUE WITH THE PRODUCT, PLEASE REACH OUT TO US AT: SUPPORT@V-TAC.EU
FOR MORE PRODUCTS RANGE, INQUIRY PLEASE CONTACT OUR DISTRIBUTOR OR NEAREST
DEALERS. V-TAC EUROPE LTD. BULGARIA, PLOVDIV 4000, BUL.L.KARAVELOW 9B
10
( as per conditions met)
Contents
1 Foreword.
............................................................................................................................................
1
2 Safety
...................................................................................................................................................
2
2.1 Safety Precautions.
.................................................................................................................
3
2.2 Abuse Operation.
....................................................................................................................
3
3 Overview
.............................................................................................................................................
4
3.1 Product Description.
..............................................................................................................
4
3.1.1 Features.
..........................................................................................................................
4
3.1.2 Basic Functions.
.............................................................................................................
4
3.2 Application Scenario.
.............................................................................................................
5
4 Application Description.
.................................................................................................................
6
4.1 Parallel Connection Application.
........................................................................................
6
4.2 Low-temperature Application.
............................................................................................
6
4.3 Low Battery-capacity Storage (SOC≤5%).
........................................................................
6
4.4 Application of Nearing the Ocean.
....................................................................................
6
5 Product Introduction.
......................................................................................................................
7
5.1 Dimensions.
..............................................................................................................................
7
5.2 Panel Introduction.
.................................................................................................................
8
5.3 Meaning of buzzer and LED light.........................................................................................11
6 Installation.
.........................................................................................................................................
16
6.1 Precautions for Installation.
.................................................................................................
16
6.2 Installation Preparation.
........................................................................................................
16
6.2.1 Tools Preparation.
........................................................................................................
16
6.3 Packing List.
..............................................................................................................................
18
6.4 Unpacking and Inspection.
...................................................................................................
18
6.5 Installation.
................................................................................................................................
19
6.6 Cable Connection.
...................................................................................................................
21
6.6.1 Power Cable Connection.
...........................................................................................
21
6.6.2 Communication Cable Connection.
.........................................................................
22
6.6.3 120Ω Resistor Connection.
........................................................................................
23
6.6.4 Grounding Cable Connection.
...................................................................................
23
7 Parallel Connection.
.........................................................................................................................
24
8 Make Your System Run.
.................................................................................................................
27
9 Shipment & Maintenance & Storage.
........................................................................................
29
9.1 Shipment.
..................................................................................................................................
29
9.2 Maintenance.
............................................................................................................................
29
9.2.1 Battery Maintenance Considerations.
.....................................................................
29
9.2.2 Routine Maintenance.
.................................................................................................
30
9.3 Battery Storage.
.......................................................................................................................
31
10 Trouble Shooting.
..........................................................................................................................
32
11 Warranty
...........................................................................................................................................
33
12 Abbreviations.
.................................................................................................................................
34
13 Screen instructions............................................................................................................................35
14 Wireless module（APP).....................................................................................................................38
1 Foreword
1
Overview
This user manual mainly introduces product introduction, application descrip-
tion, installation instructions, power-on instructions, maintenance instructions and
provides instructions the VT-48280 ESS Series LFP battery pack for technical
support engineers, maintenance engineers and users.
Reader
This document is mainly applicable to the following engineers
Technical Support Engineer
Installation Personnel
Maintenance Engineer
Signs
The following signs may appear in this article, and their meanings are as follows.
Sign
Meaning
Description
DANGER
Danger
Indicates a hazard with a high level of risk that will cause
death or serious injury if not avoided.
WARNING
Warning
Indicates a hazard with a moderate risk that may cause
death or serious injury if not avoided.
ATTENTION
Notice
Indicates a hazard with a low level of risk that may cause
minor or moderate harm if not avoided.
NOTE
Explanation
Supplementary explanation of key information in the
main text."Explanation" is not safety warning information,
and does not involve personal, equipment and
environmental damage information.
Warning
This device has an IP20 protection rating, which means it
is designed for indoor use only. Do not expose this
device to moisture or outdoor conditions, as it may cause
damage or pose safety risks.
2 Safety
2
Symbol Description
Potential risks exist. Wear proper
personnel protecives before any
operations.
Read through the user
manual before any
operations.
HIGH VOLTAGE HAZARD. High
voltage exists during the equipment's
running.
Ensure the equipment is power off
before any operations.
No extinguishing with
water.
Batteries contain flammable materials.
Beware of fire.
Put the battery in the right
place and recycle it in
compliance with local
environmental regulations.
Install the equipment away from
fire sources.
Product compliant with the
requirements of
European Union directives.
This marking indicates that this product
should not be disposed of with other
household wastes.
Designation of the
packaging material –
corrugated cardboard
Symbol indicating that the manufacturer
has contrib uted financially to the
construction and operation of
packaging material recovery and
recycling system.
2 Safety
3
2.1 Safety Precautions
Before carrying out battery work, you must read carefully the safety precautions
and master the correct installation and connection methods of the battery.
Prohibit to turn it upside down, tilt, or collide.
Prohibit to short-circuit the positive and negative poles of the battery,
otherwise it will cause the battery to be damaged.
Prohibit to throw the battery pack into a fire source.
Prohibit to modify the battery, and it is strictly prohibited to immerse the
battery in water or other liquids.
DO NOT place installation tools on the battery during battery installation.
DO NOT disassemble, squeeze, bend, deform, puncture, or shred the
battery without the authorization of authorized dealers.
DO NOT exceed the temperature range, otherwise it will affect the battery
performance and safety.
The battery circuit must be kept disconnecting status during installation
and maintenance operations.
Check the battery connection end bolts regularly to confirm that the bolts
are tight.
2.2 Abuse Operation
The battery pack needs to avoid abuse operations under the following (includ-
ing but not limited to) conditions:
Abuse Operation
Protection Description
Reverse connection of positive
and negative poles
If the positive and negative poles are connected reversely,
the battery will be directly damaged.
External short circuit
If the battery pack is short circuited externally, the battery
will be directly damaged.
Series connection application
The battery pack does not support the application of
battery packs in series. If the battery packs are forced to be
connected in series, the batteries may be directly damaged,
and may even cause fire, explosion and other dangers.
3 Overview
4
3.1 Product Description
The VT-48280 product use lithium iron phosphate (LFP) as the positive
electrode material. It can be widely used in energy storage systems such as residential
energy storage, back-up power, and PV self-consumption optimization.
The battery pack is composed of 16 cells of LFP batteries in series connection,
with low self-discharge, high energy density, and no memory effect. This type of
battery also has excellent performance in high rate, long cycle life, wide temperature
range, and high safety.
3.1.1 Features
• High energy density
Higher volume ratio energy and weight ratio energy.
• Maintenance-free
The battery pack is maintenance-free in the process of using, which can save
customers' battery operation, maintenance testing costs and reduce the frequency of
on-site replacement.
• Long cycle life
The battery pack life is 3 times long than the ordinary lead-acid batteries.
• Excellent temperature characteristics
When charging, the battery working temperature can reach 0℃~+55℃.
(recommended using temperature: +15℃~+35℃). When discharging, the battery
working temperature can reach -20℃~+60℃. (recommended using temperature:
+15℃~+35℃).
3.1.2 Basic Functions
• Monitor
The battery system uses a high-performance BMS, it has protection functions
such as current, voltage.
• Alarm
Support abnormal alarms such as overvoltage, under-voltage, overcurrent, short
circuit, high and low temperature, battery failure, hardware failure, etc.
• Communication
Provide 2*RJ45 interfaces, upload alarming and data of batteries through the
RS485/CAN communication protocol.
3 Overview
5
• Parallel connection application
Max. support 15pcs batteries in parallel connection. (Recommendation: for bettter
performance, when the number of batteries exceeds 2pcs, please connect all batteries
to the bus-bar.)
• Balance function
Support the cells balance function.
3.2 Application Scenario
The battery pack is used to provide backup power, load shifting, peaking
shaving and can be used for residential energy storage, solar energy storage and
other application scenarios.
The normal working operation diagram of the battery pack can be as shown in
the figure below.
Fig. 3-1 Working Diagram of the Battery Pack
4 Application Description
6
4.1 Parallel Connection Application
The battery packs support parallel connection, and synchronously increases the
backup time or backup power.
Confirm the consistency between the battery packs, check the SOC and voltage
and turn off the batteries before connecting them in parallel.
4.2 Low-temperature Application
• Low-temperature Charging
The battery pack does not support direct charging of the battery below 0°C.
When the minimum temperature of the battery is below 0°C, the BMS will cut-off the
charging circuit and cannot be charged.
• Low-temperature Discharging
The battery pack does not support discharge below -20°C. When the minimum
temperature of battery is below -20°C, the BMS will cut-off the discharge circuit and
cannot discharge.
4.3 Low Battery-capacity Storage (SOC≤5%)
After the battery pack is power off, there will be BMS static power consumption
and self-discharge loss. In actual scenarios, it is necessary to avoid low-battery-pow-
er state（SOC≤5%）storage. If it is unavoidable, the longest storage period is 30days
@25°C, 15 days@45°C. The battery needs to be recharged in time after storage,
otherwise the battery may be damaged due to over-discharge, and the entire battery
pack needs to be replaced.
5 Product Introduction
7
The following conditions may cause the battery pack to be stored in a
discharged state:
After the utility power failure, the line/fault cannot be eliminated in time, and
the power supply cannot be restored for a long time.
After the installation and commissioning work is completed, the utility power
is turned off directly, but the battery pack is not powered off, which will cause the
battery to enter the low power consumption mode.
Other reasons cause the battery pack to fail to enter low power consumption
normally.
5 Product Introduction
5.1 Dimensions
Fig. 5-1 Product Dimensions
5 Product Introduction
8
5.2 Panel Introduction
The panel is shown as follows.
Fig. 5-2 Peration Panel
5 Product Introduction
9
The definition of the VT-48280 operation panel is shown as folloaws.
Table 5-1 Operation Panel Interface Definition
Items
Remark
SOC
State of charge
RUN/ALM
To indicate the running or alarm status of battery
J5
J5 is used for communication between batteries.
J7
J7 is used for debugging BMS.
J6
J6 is used for communicationwith inverter .
PWR
Indicates the switching status of battery and prompts whether
the battery device is on or off
COM
When alarms and protection occur, a closed loop is formed here
BMS SWITCH
Short time contact boot，Prolonged contact shutdown
ADS Dialer
Parallel address dip switch
The SOC indicator used to identify the current capacity status of the battery.
The number of blinking indicators corresponds to different remaining capacity. The
specific meaning is shown as follows.
Table 5-2 The SOC Indicator Definition
No.
Indicator Light
Remark
1
0% ≤ SOC ≤ 16%
2
17% < SOC ≤ 32%
3
33% < SOC ≤ 49%
4
50% < SOC ≤ 65%
5
66%< SOC ≤ 83%
6
84%< SOC ≤ 100%
5 Product Introduction
10
Table 5-4 The Alarm Indicator Definition
Indication Status
ON
OFF
Battery Status
Keep On
-
Fault（Charge/Discharge MOS、NTC、
ADC Fault、Reverse Connection Fault）
Keep Off
-
Standby/Sleep/No issue
Line specification:
As shown in the figure: no buckle face up, from the top down, the line sequence is
12345678
Table 5-5 The Communication Port Definition
J5/J6
Pin
Description
(J5_1 / J5_2) 4
CAN1-H(communicate with next battery)
(J5_1 / J5_2) 5
CAN1-L (communicate with next battery)
(J5_1 / J5_2)
VCC-12V (IOE Power )
(J5_1 / J5_2)
GND (IOE GND )
(J6_1 / J6_2) 1/8
485-2B (communicate with the inverter)
(J6_1 / J6_2) 2/7
485-2A (communicate with the inverter)
(J6_1 / J6_2) 4
CAN2-H (communicate with the inverter)
(J6_1 / J6_2) 5
CAN2-L (communicate with the inverter)
/
J7 1
reserve
J7 2
reserve
J7 4
CAN-1H(communicate with the Upper computer)
J7 5
CAN-1L(communicate with the Upper computer)
5 Product Introduction
11
5.3Meaning of buzzer and LED light
When the battery is normal
system
state
RUN
Light
SOC Light
buzzer
ALM
Light
SOC
LED1
LED2
LED3
LED4
LED5
LED6
Charge
LED
Light
ON
100%
ON
ON
ON
ON
ON
ON
/
OFF
83%~99
%
ON
ON
ON
ON
ON
Flash1
67%~82
%
ON
ON
ON
ON
Flash1
OFF
51%~66
%
ON
ON
ON
Flash1
OFF
OFF
33%~50
%
ON
ON
Flash1
OFF
OFF
OFF
17%~32
%
ON
Flash1
OFF
OFF
OFF
OFF
0%~16%
Flash1
OFF
OFF
OFF
OFF
OFF
Discharge
Flash1
100%~84
%
ON
ON
ON
ON
ON
ON
83%~66
%
ON
ON
ON
ON
ON
OFF
65%~50
%
ON
ON
ON
ON
OFF
OFF
5 Product Introduction
12
Discharge
Flash1
49%~33%
ON
ON
ON
OFF
OFF
OFF
32%~17%
ON
ON
OFF
OFF
OFF
OFF
16%~8%
ON
OFF
OFF
OFF
OFF
OFF
Loud
4
7%~0%
Flash1
OFF
OFF
OFF
OFF
OFF
Loud
1
Standing
ON
100%~84
%
ON
ON
ON
ON
ON
ON
/
83%~66%
ON
ON
ON
ON
ON
OFF
65%~50%
ON
ON
ON
ON
OFF
OFF
49%~33%
ON
ON
ON
OFF
OFF
OFF
32%~17%
ON
ON
OFF
OFF
OFF
OFF
0%~16%
ON
OFF
OFF
OFF
OFF
OFF
Loud
4
When the battery is fault
faults
RUN
ALR
LED1
LED2
LED3
LED4
LED5
LED6
buzzer
number
ID faults
OFF
ON
OFF
OFF
OFF
Flash1
OFF
OFF
Loud
04
ADS Dialer
OFF
ON
OFF
OFF
Flash1
Flash1
Flash1
OFF
Loud
14
Cabinet
faults
OFF
ON
OFF
Flash1
OFF
OFF
OFF
OFF
Loud
16
5 Product Introduction
13
Annotation：
D-Low temp
Faults
OFF
ON
OFF
Flash1
OFF
OFF
Flash1
OFF
Loud1
18
C-Low temp
Faults
OFF
ON
OFF
Flash1
OFF
Flash1
OFF
OFF
Loud1
20
Ultra high voltage
OFF
ON
OFF
Flash1
OFF
Flash1
Flash1
OFF
loud
22
high voltage
OFF
ON
OFF
ON
ON
ON
ON
ON
NO-
Loud
/
low voltage/Ultra
Low Voltage
OFF
ON
OFF
Flash1
Flash1
OFF
OFF
OFF
Loud1
24
D-High temp Faults
OFF
ON
OFF
Flash1
Flash1
OFF
Flash1
OFF
Loud1
26
Discharge over
current
OFF
ON
OFF
Flash1
Flash1
Flash1
Extinct
OFF
Loud
28
Charge High temp
Faults
OFF
ON
OFF
Flash1
Flash1
Flash1
Flash1
OFF
Loud1
30
Charge
Over current
OFF
ON
Flash1
OFF
OFF
OFF
OFF
OFF
Loud
32
MOS High temp
OFF
ON
Flash1
OFF
OFF
OFF
Flash1
OFF
Loud1
34
short out
OFF
ON
Flash1
OFF
OFF
Flash1
OFF
OFF
Loud
36
Environment
H-T
OFF
ON
Flash1
OFF
OFF
Flash1
Flash1
OFF
Loud
38
Environment
L-T
OFF
ON
Flash1
OFF
Flash1
OFF
OFF
OFF
Loud
40
Normal
ON
OFF
According to the SOC display
No-loud
/
5 Product Introduction
14
Annotation：
Noun
explain
Led
Buzzer
Flash1
One second at a time
/
Loud
/
Always on
Loud1
/
One second at a time
Loud4
/
Sounds every four seconds
5 Product Introduction
15
ADS Dialer instructions
When the battery PACK is used in parallel, different packs can be distinguished
by the hardware address, and the hardware location of each PACK in the whole
battery stack
The address is unique, and the hardware address can be set sequentially by
means of a dip switch on the board, which is defined in the table below.
PACK Addr
Position of dial switch
state
#1
#2
#3
#4
1
ON
OFF
OFF
OFF
PACK1
2
OFF
ON
OFF
OFF
PACK2
3
ON
ON
OFF
OFF
PACK3
4
OFF
OFF
ON
OFF
PACK4
5
ON
OFF
ON
OFF
PACK5
6
OFF
ON
ON
OFF
PACK6
7
ON
ON
ON
OFF
PACK7
8
OFF
OFF
OFF
ON
PACK8
9
ON
OFF
OFF
ON
PACK9
10
OFF
ON
OFF
ON
PACK10
11
ON
ON
OFF
ON
PACK11
12
OFF
OFF
ON
ON
PACK12
13
ON
OFF
ON
ON
PACK13
14
OFF
ON
ON
ON
PACK14
15
ON
ON
ON
ON
PACK15
6 Installation
16
ATTENTION
Precautions for Installation
Light intensity is required near the installation location.
Comply with the safety operation technical regulations when lifting and
handling heavy objects.
Equipment and tools must be complete, intact, and reliable. It is strictly
prohibited to use tools with cracks, burrs, loose handles, etc., that do not meet the
safety standards.
Installation operations must be guided by qualified engineers.
During installation, two people must work together, one operating and the
other inspecting.
The original cable connection and operation process shall not change without
the authorization of the company's consent.
6.1 Installation Preparation
Light intensity is required near the installation location.
Comply with the safety operation technical regulations when lifting and
handling heavy objects.
Equipment and tools must be complete, intact, and reliable. It is strictly
prohibited to use tools with cracks, burrs, loose handles, etc., that do not meet the
safety standards.
Installation operations must be guided by qualified engineers.
During installation, two people must work together, one operating and the
other inspecting.
The original cable connection and operation process shall not change without
the authorization of the company's consent.
6.2 Installation Preparation
6.2.1 Tools Preparation
Use insulated tools to avoid electric shock. If you use tools without insulation
protection, you need to wrap the exposed metal parts with insulation tape for
insulation treatment.
6 Installation
17
The following table describes the tools and meters that may be used before installation.
Table 6-1 Installation
Manual forklift
Electric forklift
Tape measure
Adjustable wrench
Phillips screwdriver
Ladder
Levelling Instrument
Claw Hammer
Socket wrench
Multimeter
Insulated torque wrench
Helmet
Insulated shoes
Anti-static gloves
Goggles
Insulating tape
6 Installation
18
6.3 Packing List
Item
Description
Quantity
A
VT-48280 battery
1
B
GND cable
1
C
Spirit Level
1
D
Fixing Screws（Expansion Bolt）
2
E
User Manual
1
F
Warranty Card
1
G
Packing List
1
H
Bracket
2
I
J7 Dust-proof plug
1
J
J5 J6 Dust-proof plug
3
6.4 Unpacking and Inspection
After receiving the goods on-site, please check whether the packing box is intact
and inspect the goods in time. If the packing box is slightly damaged, please sign the
cargo list to confirm receipt and indicate the extent of the damage. If the damage of
the packing box is serious, please refuse to sign.
Please carry out an unpacking inspection after receiving all the goods. If users
find that the received goods do not match the packing list, please contact Vtac as
soon as possible.
6 Installation
19
2pcs brackets
6.5 Installation
Step 1. Place the battery to a flat surface.
NOTE
Please place the VT-48280 battery on a flat surface, ensuring there is adequate
space on both sides of the battery (recommended to be greater than 200mm).
If possible, the installation site should be as spacious and ventilated as possible.
If the site is small and confined, please configure auxiliary heat dissipation equipment.
To ensure more stable installation, please mount the battery to the wall before use.
Step 2. Take out the 2pcs brackets from the battery package.
Step 2.1. Remove the screws from the back of the battery.
Step 2.2. Use the removed screws (Step 2.1) to fix the brackets to the back of the
battery.
Step 2.3 Fix the 2pcs brackets to the battery.
Fig.6-1 Fix the Brackets to the Battery
6 Installation
20
Step 3. Fix the 2pcs* ‘Fixing screws’ on the wall.
Fig.6-2 Fix the Battery to the Wall
Fig.6-3 Fix the Battery to the Wall
6 Installation
21
6.6 Cable Connection
6.6.1 Power Cable Connection
NOTE
Please contact Vtac or the supplier to purchase the following cables. They are
maybe not included in the battery box and can be obtained in the Master/Slave
Cable Kit provided by Vtac or the suppliers.
How to use the touch-safe power cable connectors
The following is the power cables connection display of the battery to the inverter.
Fig.6-4 Power Cable Connection Diagram
6 Installation
22
6.6.2 Communication Cable Connection
Locate the direction of the communication cable with the socket and then insert
the communication cable to the socket.
NOTE
How to use the communication cable connectors
Open the communication port cover, align it with the corresponding socket, and
.6-5 Communication Cable Connection Diagram
insert it.
6 Installation
23
6.6.3 120Ω Resistor Connection
To ensure stable communication with the inverter when using more than two
batteries in parallel, follow these steps:
Step 1.Take out a 120Ω resistor from the 'Slave Battery Kit'.
Step 2. Insert the 120Ω resistor into the 'COM 2' port of the last VT-48280.
6.6.4 Grounding Cable Connection
Connect the grounding cable to the ground.
Fig.6-6 GND Cable Connection Diagram
7 Parallel Connection
24
If you will install less than 2pcs batteries (Battery quantity≤2), please refer to the
following wiring configuration.
Battery Quantity of Parallel
Cable Kit
1 pc
Master Cable Kit * 1 set
7 Parallel Connection
25
If you will install more than 2pcs batteries (No more than 15pcs) , you will have
the following two system wiring options.
Option 1. Connect all batteries to the bus bar.
NOTE
For this wiring solution, you will need to prepare bus bars and power cables to
connect the bus bars to the inverter in addition. You can either purchase them
independently or obtain them from Vtac or the supplier.
In this wiring solution, the Max. output current of the system will be 150A* the
quantity of batteries in parallel.
Battery Quantity of Parallel
Cable Kit
3 pcs
Master Cable Kit * 3 set
..
.
..
.
N pcs （4≤N<15）
Master Cable Kit * N set （4≤N<15）
...
...
15 pcs
Master Cable Kit * 15 set
7 Parallel Connection
26
ATTENTION
If you will install more than 2pcs batteries (Contains 2, no more than 15pcs), you
need to pay attention to the connection of the parallel interface(J5).
Fig 7-1 J5 Port Diagram
If you will install more than 2pcs batteries，be sure to connect from the output of
the last J5 to the input of the next J5.To avoid damaging to the BMS.
The connection diagram is as follows.
Master Slaves 1 Slaves 2
8 Make Your System Run
27
ATTENTION
Please strictly follow the steps below for check and operation. Vtac will not be
responsible for any issues caused by improper operation.
Parameter Setting
Table 8-1 Parameter Setting
No.
Description
Unit
Value
1
Nominal Voltage
V
51.2
2
Float Charge Voltage
V
58.4
3
Recommended Charge Current
A
140
4
Max. Charge/Discharge Current
A
150
5
Discharge Cut-off Voltage
V
43.2
6
Charge Temperature Range
℃
0～55
7
Discharge Temperature Range
℃
-20～60
8
Storage Temperature Range
℃
15～35
NOTE
The setting of different inverters will be different.
Make sure the inverter/charger is powered on before powering on the battery.
Must not change the parameters casually in the site.
8 Make Your System Run
28
Check before Running
Step 1. Check whether the cables are connected correctly.
Step 2. Check whether the batteries are grounded.
Step 3. Check these following status of switchs.
The power switch of the battery should be off.
The DC switch of the inverter should be off.
The circuit breaker from the inverter to the grid should be off.
Power-on
Step 4. Turn on the DC switch of inverter.
Turn on the switch between the inverter and grid.
Turn on the circuit breaker between the inverter and battery (if any).
Step 5. Turn on the power switch of battery. And waiting for the Run/Alarm
indicator lights from green blinking into green, means power on successfully！
NOTE
· If you want to Power off your system
If you need to shut down the system for some reason, please refer to the following
steps.
Step 1. Turn off the inverter first.
Step 2. Turn off the battery then.
9 Shipment & Maintenance & Storage
29
9.1 Shipment
It is suitable for the transportation of vehicles, ships and airplanes. During
transportation, shading, sun protection and civilized loading and unloading should
be performed. The box containing the product is allowed to be transported by any
means of transportation. In the process of loading and unloading, the battery should
be handled with care to prevent falling, rolling, and heavy pressure. Avoid direct rain
and snow and mechanical impact during transportation.
And here is the suggestion for the initial SOC before shipment by different
transportation:
Airplane:30%~40%
Sea:40%~50%
Vehicle:50%~60%
NOTE
Whether the loading SOC status of the battery is allowed, you need to consult
the relevant government transportation department.
9.2 Maintenance
9.2.1 Battery Maintenance Considerations
When maintaining the battery, it is required to use insulated tools or wrap the
tools in insulation.
DO NOT place any debris on the top of the battery.
DO NOT use any organic solvents to clean the battery.
DO NOT smoke or use naked flames near the battery.
After the battery is discharged, the battery should be charged in time to avoid
affecting the battery life.
When not using the battery for a long time, please charge the battery to
40%~50% charged state. Long-term storage with low battery may
damage the battery.
All maintenance work must be carried out by professionals.
9 Shipment & Maintenance & Storage
30
9.2.2 Routine Maintenance
The staff should perform visual inspection on VT-48280 battery according to
the inspection plan, please refer to the following table for maintenance.
Table 9-1 Routine Maintenance（Every three-month）
Items
Standard
Dealing
The surface is neat and clean
without stains.
If the surface is dirty, clean the
appearance of the battery pack with
a cotton cloth.
The battery pack terminal is damaged,
replace the cable.
If the appearance is damaged, leaking or
deformed, take a photo and replace the
defective battery pack.
Please contact supplier or the authorized
dealers in time for other abnormal
situations.
The terminals are in
good condition.
Battery
Appearance
The battery pack shell is intact,
and there is no bumps, breaks,
or leakage.
The appearance of the battery
pack does not leak.
No deformation or swelling
of the shell.
Alarm
No Alarm.
Find the solution as per alarm information.
NOTE
Suggested routine maintenance for every three-month.
9 Shipment & Maintenance & Storage
31
Table 9-2 Routine Maintenance（Every six-month）
Items
Standard
Action
（Suggested）
Complete
Cycle
Have a complete charge & discharge
cycleunder the equipment no
lack of power.
Check whether happens alarm action,
and please check with the alarm list.
Please contact with supplier or the
authorized dealers if the alarm still exists.
Cables
There is no aging of the connecting
wire and no cracking of the
insulation layer.
The bolts at the cable connection
are not loose.
Replace the faulty connection.
Fastening bolts.
9.3 Battery Storage
The recommended storage temperature is 15℃~35℃.
Battery performance degradation after long-term storage, please shorten
shelf time as possible as you can.
Recharge charge before using to recover capacity loss of self-discharge during
storage and transport.
Storage battery should be at 40%-50% SOC when the battery is not used for a
long time.
Storage battery over 40°C or under 0°C will reduce battery life.
Storage battery in dry and low temperature, well ventilated place.
If the battery is not used for a long time, the battery must be charged at regular
intervals. The charging requirements are as follows：
Table 9-3 Battery Charge Requirement in Storage Status
Storage Temp.
Charge Period
Charge Process
20℃~30℃
Each 6 months
1.
Charge by 0.2C to 100% SOC
2.
Discharge by 0.2C to 0% SOC
3.
Charge by 0.2C to 40%~50% SOC
0℃~20℃ or 30℃~40℃
Each 3 months
10 Trouble Shooting
32
Please refer to the table below to deal with common faults：
Table 10-1 FAQ
Phenomenon
Possible cause
Solution
The indicator
does not flash
The power cable of the battery
pack is not properly connected.
The power switch is off.
The BMS is in a sleep state.
BMS is damaged.
Reconnect the power cable of the battery
pack.
Turn on the power switch.
Charge the battery pack.
Replace BMS.
Unable to
discharge
The terminal of the battery pack
is damaged.
BMS communication failure.
The power switch is off.
Replace the battery pack wiring terminals.
Reconnect the communication line between
the BMS and the battery pack. If the
communication cable is damaged, replace the
communication cable.
Turn on the power switch.
Unable to
charge
The charger is malfunctioning.
The terminal of the battery pack
is damaged.
BMS communication failure.
The power switch is off.
Replace the charger.
Replace the battery pack wiring terminals.
Reconnect the communication line between
the BMS and the battery pack. If the
communication cable is damaged, replace the
communication cable.
Turn on the power switch.
Communication
fail
The power switch is off.
The BMS is in a sleep status.
The communication cable is
damage.
Turn on the power switch.
Charge the battery pack.
Replace the network cable.
Inaccurate
voltage display
The voltage sampling line is
damaged.
BMS is damaged.
Replace the voltage sampling line.
Replace BMS.
Low capacity
The battery pack has not been
maintained for a long time.
The single battery is damaged.
Inaccurate voltage sampling.
Use an equalizer to maintain the battery pack.
Replace the damaged single battery.
Replace the electrical sampling line or replace
the BMS.
Low cell
voltage
The battery pack has not been
maintained for a long time.
The single battery is damaged.
Inaccurate voltage sampling.
Use an equalizer to maintain the battery pack.
Replace the damaged single battery.
Replace the electrical sampling line or replace
the BMS.
33
11 Warranty
Except for the following and the conditions specified in the contract, you can go to the
supplier or the authorized dealers for reasonable warranty and maintenance.
1. Failure of equipment caused by unauthorized disassembly and maintenance operations
without the supplier or the authorized dealers is not within the scope of the warranty.
2. Equipment damage caused by negligence during storage and transportation is not
covered by the warranty.
3. The damage to the equipment caused by continuous overload work outside the electrical
parameters of the equipment is not covered by the warranty.
4. Unauthorized testing of the equipment without the supplier and the authorized dealers
will not be covered by the warranty.
5. Non-equipment problems, adverse consequences caused by operation and matching
problems are not covered by the warranty.
6. Equipment damage caused by natural forces, force majeure, and uncontrol- lable factors,
such as earthquakes, typhoons, tornadoes, volcanic eruptions, floods, lightning, heavy
snow, and wars, is not covered by the warranty.
7. If the product serial number is changed, blurred, or torn, it is not covered by the warranty.
IMPORTANT NOTES
• This product contains battery type "Secondary" (rechargeable).
• Electrical and electronic equipment that has become waste is known as old equipment/de-
vice. Old devices must not be disposed of with other household waste.
• Owners of old devices at the end of its service life must return the device by taking them
to the collection points set up by public waste disposal authorities or distributors. This
return does not entail any costs for you.
• Owners of old devices have an obligation to remove accessible batteries / rechargeable
batteries as well as non-destructively removable lamps from the old device prior to return.
This does not apply if old devices are being prepared for reuse with the participation of a
public law firm.
• Battery removal warning: The battery contained in this product must be removed only by
professional personnel only. The battery must never be removed by the end user, if not
removed correctly it could damage the battery which could cause fire.
• Batteries removed from an old electronic device should be disposed of separately. This
return of battery does not entail any costs for you and the user is obliged to return the
battery.
• Please make sure that this product is not powered on when removing the battery. Fire
hazard! Avoid short-circuiting the contacts of a detached battery. Do not incinerate the
battery. Please handle the battery with Caution!
• If electrical appliances or batteries are disposed of in landfills or dumps, hazardous
substances can leak into the groundwater and get into the food chain, damaging your
health and well-being
• .
• The symbol of "Crossed rubbish bins "indicates that this product should not be disposed
of with other household wastes and must be collected separately from unsorted municipal
waste at the end of its service life.
• Please use the link below to view the online directory of the collection and return
points:https://www.ear-system.de/ear-verzeichnis/sammel-und-ruecknahmestellen
12 Abbreviations
34
BMS Battery Management System
D Depth
H Height
LCD Liquid Crystal Display
LFP LiFePO4
MOSFET Metal-Oxide-Semiconductor Field-Effect
Transistor
NTC Negative Temperature Coefficient
PC Personal Computer
PCB Printed Circuit Board
PCS Power Conversion System
RTU Remote Terminal Unit
SOC Stat
35
13.Screen instructions
1. After the battery is turned on, enter the Home main interface，the displayed contents include
V,I,SOC, and SOH.
Interface
Abbreviation of name
Full name
Home
V
Voltage
I
Current
SOC
State Of Charge
SOH
State Of Health
Click → as shown in the picture to enter the second interface.
2.The contents displayed on the second page include Addr, Rem Cap, Tot Cap, TEMP1-4, Env Temp,
MOSTemp, and CELLS1-16.
36
13.Screen instructions
Battery
Info
Abbreviation of name
Full name
Addr
Address
Rem Cap
Remnant capacity
Tot Cap
Total capacity
Temp1~4
Temperature1~4
Env Temp
Environment temperature
MOSTemp
MOS temperature
Cells1~16
Cells1~16
Click → as shown in the picture to enter the third interface .
3.The contents displayed on the third page include TV_L, TV_H, SV_L, SV_H, D_C, C_C, S_C, D_T_H,
and C_T_H
, D_T_L, C_T_L, MOS _H, SV_H_H, SV_L_L, E_H, TV_H_H, PRE_CHA, ID_OVER, BAT_FAULT
E_L and other protection and alarm, when triggered from green to red
Battery
State
TV_L
Total voltage_low
TV_H
Total voltage _high
SV_L
Single voltage_low
SV_H
Single voltage_high
D_C
Discharge_current
C_C
Charge_current
S_C
Short _current
D_T_H
Discharge temperature_high (auto cut off
C_T_H
Charge temperature_high
D_T_L
Discharge temperature_ low
C_T_L
Charge temperature_low
37
13.Screen instructions
MOS _H
MOS temperature_high
SV_H_H
Single voltage high_high
SV_L_L
Single voltage low_low
E_H
Environment temperature_high
TV_H_H
Total voltage is high _high
PRE_CHA
Pre_charge fault
ID_OVER
ID_Overtime
BAT_FAULT
Battery_Fault
E_L
Environment temperature_low
Click → as shown in the picture to enter the fourth interface.
4、The Inverter, language, and Version are displayed.
System
Info
Inverter
Inverter
language
language
Version
Version
Click ← as shown in the picture to return to the third interface.
38
14.Wireless module instructions(APP)
1.Overview
IOE APP allows users to connect to devices by turning on Bluetooth, and has rich device
information synchronization functions, allowing users to easily obtain detailed device data and grasp
device status in real time. At the same time, its remote control function can keep the equipment in
optimal operating condition anytime and anywhere.
When users open the APP and connect to the battery, they can see various detailed data, such as
voltage, current, temperature, power, SOC and other information. It also supports battery parameter
modification and synchronizes data updates for users in real time, allowing users to quickly make
immediate adjustments to the battery. Visual query management and intelligent monitoring of
battery status.
2.Software Features
2.1 Language Settings
The international common language English is used as the default language. In order to
facilitate more users to use it, the APP provides Chinese and English bilingual versions, which can be
freely switched according to user needs.
2.2 Visual Query Management
Users can use the query function in the APP to conduct visual information query on the
battery, making it convenient for users to view real-time battery information anytime and anywhere,
and helping users intuitively understand the system operation.
2.3 Interface Design
The interface is simple and refreshing, mainly using blue and white as the background color,
giving a fresh and transparent feeling and bringing a comfortable experience to users.
2.4 Information Collection
The APP can capture battery information in real time, including voltage, current, temperature,
battery capacity, SOC and other information. The latest battery data information can be collected in
the shortest time, and the information can be released through the APP as soon as possible, thereby
improving the timeliness and visualization of the information.
2.5 Intelligent Monitoring
The APP can intelligently monitor the battery status, realize instant alarm, notify relevant
personnel to deal with it as soon as possible, and protect the battery status.
3.APP Installation Process
Scan the QR code below to enter the APP download page. After entering the download page,
39
14.Wireless module instructions(APP)
click the three... buttons in the upper right corner and click to open it with a browser and
download it to install the APP.
4.
4.Instructions for use
（1）Installation via QR code.
Stp1. Scan the QR code on the right.
Stp2. If you use the scan function through wechat or other
software, you need to open it in the browser and enter Download
interface, Figure 2, Figure 3. If you use the mobile phone to
scan, go directly to Figure 3 to Download Screen.
Figure 2: Go to the browser
F
igure 3: Go to the browser
Stp3. Click Figure 3 to download immediately, and the APK installation package will appear
on the Android terminal, as shown in Figure 4. After downloading, install it, as shown
in Figure 5.IOS directly enters the APP Store for download and installation, as shown
in Figure 6.
Figure 1: Download QR
40
14.Wireless module instructions(APP)
Figure 4:Browser download Figure 5:Android stallation Figure 6:IOS installation
You can also search for IOE green energy through Google Play or IOS APP store to download
and install it, as shown in the figure below.
Figure 7: Search
for downloads
5.
41
14.Wireless module instructions(APP)
4.1 Log in
Figure: Log in
Page description: This picture is the APP login page. You can enter the user's account (email)
and password to log in.
Click "EN" to enter the Chinese login interface.
Click "register" to jump to the registration page.
4.2 Register
Figure: register
42
14.Wireless module instructions(APP)
Page description: This picture shows the APP registration page. You can enter your email
(login account), password, confirmation password, and email verification code to complete the
registration operation. Email verification code is valid for 2 hours
4.3 APP Homepage
Figure 1：APP home page
43
14.Wireless module instructions(APP)
Page description: This picture is the homepage of the APP. The instrument panel shows the
SOC value. Under the dashboard is the total voltage, total current, maximum temperature, minimum
temperature, cumulative charging capacity, and cumulative discharge capacity.
Click "Number batteries" to jump to the battery pack list page.
Click the "Bluetooth icon " in the upper right corner to jump to the Bluetooth connection
page.
Click the "alarm icon " in the upper left corner to jump to the system alarm viewing page.
Click "IOE setting" to reach the system settings page.
Click "Upgrade" to choose to upgrade CM100 or BMS.
Click "EN" to switch to the Chinese version.
4.4 Bluetooth Connection
Click the Bluetooth icon to jump to the Bluetooth connection interface, as shown in Figure 2:
Figure 2：Bluetooth connection interface
Page description: This picture is the Bluetooth connection page. Initialize the page or click the
refresh button to open the nearby Bluetooth search function. Click the device you want to connect
to in the obtained device list. After clicking Connect, it will prompt that the connection is successful
and it will show that it has been connected to he device you want (Bluetooth name)
The default naming rule of Bluetooth is: IOE_XXXXX
Click to bind Bluetooth. After binding, the battery cloud data will be obtained by default
every time you enter the APP. (WiFi information needs to be configured)
Click to disconnect the Bluetooth connection.
4.5 IOE Setting
Click "IOE setting" on the homepage to enter the setting interface, as shown in Figure 4
44
14.Wireless module instructions(APP)
Figure 4：IOE setting
Page description: This picture is the IOE setting page, which can read and set the Wi-Fi name&
password and select inverter.
45
14.Wireless module instructions(APP)
4.5.1 Inverter Selection
Figure 5：Inverter selection
The inverter selection currently supports ten models, two communication methods
(CAN/RS485), and multiple frequency options.
46
14.Wireless module instructions(APP)
4.5.2 WIFI Setting
Figure 6:WIFI setting
Click WiFi Setting ,then a setting box will pop up. After entering the WiFi information and
clicking Confirm, the WiFi information of the communication box will be set.
47
14.Wireless module instructions(APP)
4.6 Upgrade
Click "Upgrade" on the homepage to enter the setting interface, as shown in Figure 7:
Figure 7：Upgrade
Page description: This picture shows the upgrade page. Click "Upgrade" to choose to upgrade
CM100 or BMS.
4.7 Battery Pack Information
Click "Number batteries" on the homepage to jump to the battery pack list page, as shown in
Figure 8
48
14.Wireless module instructions(APP)
Figure 8：Battery pack list
Page description: This picture is the battery pack list page, which can display the SOC of
multiple battery packs. Click on a single pack to jump to the corresponding battery pack details
page, as shown in Figure 9
49
14.Wireless module instructions(APP)
Figure 9: Battery pack details
Page description: This picture is the battery pack information page, which can display the total
voltage, total current, battery string number, heating MOS, discharge MOS, charging MOS,
minimum voltage of a single cell, maximum voltage of a single cell, maximum temperature, and
minimum of the battery pack. Temperature.
4.8 Parameter Settings
Click on the parameter setting of the battery pack details to jump to the parameter setting
page. In the upper right corner, you can read the parameter value with one click. Click the value to
pop up the "Whether to modify the parameter pop-up box", and you can modify the parameters, as
shown below:
50
14.Wireless module instructions(APP)
Figure 10: Parameter Setting
51
14.Wireless module instructions(APP)
4.9 More Information
Click on more information about the battery pack details to jump to the more information
page, as shown below:
Figure 11:More Information
This page can display the voltage information from V1 to V16 and the temperature
information from T1 to T4 to facilitate users to check the battery status.
4.10 System Settings
Click on the system settings of the battery pack details, click “Read” to read the
corresponding value, click “Setting” to make changes, and read the new set value when reading
again, as shown below:
52
14.Wireless module instructions(APP)
Figure 12:System settings
4.11 System Alarm
Click the alarm icon in the upper right corner of the battery pack details to view system
alarm information, allowing users to immediately understand the problem, as shown below:
53
14.Wireless module instructions(APP)
Figure 13:System alarm
4.12 High-Pressure Interface
When currently on the Bluetooth interface, if you want to return to the homepage, a pop-up
prompt will appear to select either the low-pressure or high-pressure page to facilitate users in
viewing device information in different environments, as shown below:
54
14.Wireless module instructions(APP)
4.13 High-Pressure Master Details Interface
When currently on the high-pressure interface, the battery pack information button will be switched
to two modules: master and slave information. Clicking on master details will enter the master
details page, as shown below:
55
14.Wireless module instructions(APP)
4.14 High-Pressure Slave Details Interface
When currently on the high-pressure interface, the battery pack information button will be switched
to two modules: master and slave information. Clicking on slave details will enter the slave details
page, as shown below:
56
14.Wireless module instructions(APP)
Recommend charging method declared by the manufacturer：
Charge the battery at constant current 140A until voltage reaches 58.4V, then charge at constant
voltage 58.4V till charge current is 14A.
Manufacturer's Name: LEDXPRESS LIGHTING TECHNOLOGY CO.,LTD
Product name: Lithium Ion Batteries
Model : VT-48280
Operating Temperature: -20° C to 60° C
This device was tested for operations. To comply with RF exposure requirements, a minimum
separation distance of 20 cm must be maintained between the user’s body and the handset,
including the antenna. Third-party belt-clips, holsters, and similar accessories used by this device
should not contain any metallic components. Body-worn accessories that do not meet these
requirements may not comply with RF exposure requirements and should be avoided. Use only the
supplied or an approved antenna.
This device in compliance with the essential requirements and other relevant provisions of Directive
2014/53/EU. All essential radio test suites have been carried out.
1.Use careful with the earphone maybe possible excessive sound pressure from earphones and
headphones can
cause hearing loss.
2. CAUTION : RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF
USED BATTERIES
ACCORDING TO THE INSTRUCTIONS
3. The product shall only be connected to a USB interface of version USB 2.0
4. Adapter shall be installed near the equipment and shall be easily accessible.
5. The plug considered as disconnect device of adapter
6. The device complies with RF specifications when the device used at 20 cm form your body
7. This product can be used across EU member states.
VTAC EUROPE LTD
Bulgaria, Plovdiv 4000, bul.L.Karavelow 9B
