INSTRUCTION MANUAL
ESS SERIES BATTERY PACK
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
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.
INTRODUCTION
Multi-Language Manual QR CODE
Please scan the QR code to access the manual
in multiple languages.
5
YEARS
WARRANTY
*
This document is mainly applicable to the following engineers
Technical Support Engineer
Installation Personnel
Maintenance Engineer
1 Foreword
This user manual mainly introduces the 48V 200Ah series product introduction,
application description, installation instructions, power-on instructions, maintenance
instructions and provides instructions for technical support engineers, maintenance
engineers and users.
Reader
Overview
Signs
The following signs may appear in this article, and their meanings are as follows.
Sign Meaning Description
Danger
Indicates a hazard with a high level of risk that will cause
death or serious injury if not avoided.
Warning
Indicates a hazard with a moderate risk that may cause
death or serious injury if not avoided.
Notice
Indicates a hazard with a low level of risk that may cause
minor or moderate harm if not avoided.
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.
DANGER
WARNING
NOTE
ATTENTION
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 Vestwoods and 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 Safety
2.2 Abuse Operation
2.1 Safety Precautions
The battery pack needs to avoid abuse operations under the following (includ-
ing but not limited to) conditions:
Abuse Operation Protection Description
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 forcedto be
connected in series, the batteries may be directly damaged,
and may even cause fire, explosion and other dangers.
Reverse connection of positive
and negative poles
≤
3 Overview
The 48V 200Ah series products use lithium iron phosphate (LFP) as the positive
electrode material. It can be widely used in telecom scenario and energy storage
systems such as off-grid, grid-connected, and home use.
The battery pack is composed of 15 cells/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
3.1 Product Description
• 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℃～＋60℃(recom-
mended 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 dual RS485 interfaces, upload alarming and status data through the
RS485/CAN communication protocol.
• Parallel connection application
Support multiple battery packs in parallel, RS485/CAN communication supports
up to 6 groups without control unit（or max supports 15 groups with control unit）.
• Balance function
Support the cells balance function.
• Extended function
Extended SNMP V2, SNMP V3, LCD, anti-theft, etc.
Figure 3-1 Normal Working Operation Diagram of The Battery pack
3 Overview
3.2 Application Scenario
The battery pack is used to provide backup power to the power system, and can
be used for telecom, household 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.
4 Application Description
The battery packs support parallel connection, and synchronously increases the
backup time or backup power.
Multiple battery packs of parallel connection need to use RS485/CAN to
communicate, pay attention to the DIP switch settings. Turn off the batteries before
connecting them in parallel.
4.2 Low-temperature Application
4.1 Parallel Connection 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
c
annot 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 30
The atmospheric corrosion environment is defined and classified according to
the natural environment state, and the A/B environment is defined as follows:
A: environment refers to the ocean or the land near the pollution source, or
the environment with simple shelter (such as awning). "Near the ocean" refers to the
area 0.5～3.7km away from the ocean; "Near the pollution source" refers to the area
within the following radius: 3.7km from the saltwater lake, 3km from heavy pollution
sources such as smelters, coal mines, and thermal power plants, chemical industry,
rubber, electroplating, etc. 2km from medium pollution sources such as chemical
industry, rubber and electroplating, etc. And 1km from light pollution sources such as
food, leather and heating boilers, etc.
B: environment. Refers to the environment on land or outside with simple
shelter (such as awning) within 500m from the coast, or the environment on the sea.
days@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.
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.
4 Application Description
4.4 Application of Nearing the Ocean
The battery pack can be used under other environmental conditions and cannot
be used alone under A/B environment. If it is to be used in the A/B environment, it
needs to be equipped with a high-protection air-conditioning cabinet, which is
recommended to be IP55 or higher.
NOTE
5 Product Introduction
5.1 Panel Introduction
5.1.1 Panel Function
Figure 5-1 Front Panel
Table 5-1 Operation Panel Interface Definition
The interface definition as below table：
No. Name Description Remark
1&12
2
SOC
State of charge
Details shows in table 5-2
3
ALM Alarm light
Address range 0~15
4
RJ-11
RJ-11 interface for firmware
Used for debugging
5
RJ-45/CAN
2*RJ
-
45 interface for RS485/
CAN communication
Details shows in table 5-7
6
RESET
Reset switch
8&9
Dry Contact
NC. / NO. dry contact
Dry contact definition shows
in table 5-8
10
Switch
Power switch
11
Battery Output
Power terminal
13
GND Module ground connection
-
-
Details shows in table 5-4
RUN Run status of battery Details shows in table 5-3
Dip switch ADD
update
7
-
-
5 Product Introduction
5.1.2 Indicator Description
Table 5-3 RUN Indicator Definition
Table 5-2 SOC Indicator Definition
There are 6 Indicators on the operation panel, divided into three categories: 4
green SOC Indicators, 1 red alarm Indicator and 1 green run indicator.
The power indicator is used to identify the current capacity status of the battery.
The number of flashing indicators corresponds to different remaining capacity. The
specific meaning is shown in the following table.
Flash Mode ON OFF Module Status
Flash 1 0.25 s 3.75 s
Flash 2 0.5 s 0.5 s Charge
Flash 3 0.25 s 0.25 s
Status
LED
SOC indicator
Keep On
Discharge
Keep Off
Idle
Stant up failed
Sleep/Fault
-
-
L4
L3
L2 L1
Flash 2
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON ON
SOC
0~10%
10~25%
25~50%
50~75%
75~100% ON ON ON ON
OFF
OFF
Table 5-5 Battery Status and Indicator Operation Mode
5 Product Introduction
The corresponding relationship between battery operation status and indicator
operation status is shown in the following table.
Battery
status
Normal/
Abnormal
RUN
ALM
SOC Indicators
Description
- -
-
Green
Red
Green Green Green Green
-
Power off/
Sleep
OFF
OFF OFF OFF OFF OFF
-
Standby
Normal
Flash 1
OFF
According to SOC
Flash mode
shown in Table 2
Charge
Normal
Flash 2
ON
OFF
OFF
According to SOC
According to SOC
-
Error
Abnormal OFF ON OFF -
-
Discharge
Normal
Abnormal
According to the
state of charge
and discharge
According to SOC
Recoverable
Flash 2
Alarm
Table 5-4 Alarm Indicator Definition
Indication Status ON OFF Module Status
Flash 2 0.5 s 0.5 s
Keep On
Fault（Charge/Discharge MOS、NTC、
BQ940、ADC Fault、Battery lock）
Keep Off
Alarm
（Cell Over-voltage、Cell Under-voltage）
Standby/Sleep
-
-
Table 5-6 Correspondence between BMS and DIP Switch
5.1.3 DIP Address
To communicate with the battery, you need to assign an address to the battery
BMS through the DIP switch.
5 Product Introduction
The relationship between DIP address and BMS address as below：
DIP 1 DIP 2 DIP 3 DIP 4 BMS Address
OFF OFF OFF OFF 0
ON
OFF OFF OFF 1
OFF
ON
OFF OFF 2
ON ON
OFF OFF 3
OFF OFF
ON
OFF 4
ON
OFF
ON
OFF 5
OFF
ON ON
OFF 6
ON ON ON
OFF 7
OFF OFF OFF
ON
8
ON
OFF OFF
ON
9
OFF ON
OFF
ON
10
ON
11
ON
ON
12
OFF ON
ON
13
OFF
ON
ON
ON
14
ON ON
ON
ON
15
ON
ON OFF
OFF
OFF
ON
BMS Address
Table 5-7 RJ 45 Definition
Table 5-8 Dry Contact Alarm Definition
5 Product Introduction
RJ 45 definition as below：
5.1.4 Communication Port Definition
The module uses the default NC. dry contact to provide alarm signals. The
alarm definition of the dry contact is defined as follows.
5.1.5 Dry Contact Alarm Definition
RJ 45/CAN Photo Pin Description
4 RS485_A
5
CAN_L
6
CAN_H
7 RS485_B
8
GND
1/2/3
NC
Dry Contact No. Alarm Definition
Dry Contact 1
Dry Contact 2
Battery lock；
940 module fault；
NTC disconnection;
Single cell voltage is lower than 1V;
Charging and discharging MOS fault；
Voltage gap between cells is more than 800mV.
1 2 3 4 5 6 7 8
SOC≤20%
When batteries are used in parallel, the DIP address of the master pack is set to 1
by default. Therefore, DIP address ‘1 ’cannot be used for battery communication.
NOTE
Figure 6-5 Connect Ground Cable
Table 6-1 Installation
6.1 Tools Preparation
6 Installation
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.
The following table describes the tools and meters that may be used before
installation.
Manual forklift Electric forklift Electric screw driver Adjustable wrench
Phillips screwdriver Slotted screwdriver Torque wrench Claw Hammer
Socket wrench Multimeter Protective gloves Helmet
Insulated shoes Anti-static gloves Goggles Insulating tape
ATTENTION
Study this manual carefully before any installation of the batteries.
The batteries must only be installed and operated by trained personnel.
Check the quantity of battery and accessories with delivery list.
Check the appearance whether there is damaged or leakage, if any damage is
detected, please do not proceed to the next installation.
6 Installation
6.2
Unpacking and Inspection
Make sure to disconnect and isolate the battery from any electrical source,
and then turn on the MCB (switch). Verify that the red ALM LED does not stay on for
more than 30 seconds.
Turn off the switch and continue with the installation.
6.3 Preparing for Installation
Figure 6-1 Make Sure the Battery is in Off Status
1 Make sure the battery is in off status. As shown in Figure 6-1.
6.4 Installation
6 Installation
Figure 6-2 Fix the Battery on the Cabinet or Rack
Figure 6-3 Right Way to Place Battery
2 Put the battery into cabinet or rack. As shown in Figure 6-2.
5 Product Introduction
The 48V 200Ah series batteries can applied to install in 19-inch rack / existing
cabinets.
The 48V 200Ah series batteries preferred to be installed in flat position as Fig
6-3 shown.
The battery must be fixed tightly with 4pcs M6*25 crown screws.
The grounding screw is M5*12.
In case of several battery parallel connection, it is advisable to leave a space of
at least 10mm between them.
NOTE
Figure 6-4 Connect Ground Cable
Pay attention to the polarity of the battery pack.
Connect the negative power cables of all battery packs first, and then connect the positive
power cables of the battery packs.
1 Connect Ground Cable
Take out the ground wires and connect one end to the ground point of the
battery pack and other end to the ground point of the cabinet.
6.5 Cable Connection
6 Installation
Figure 6-5 Connect the Battery Pack Power Cable
2 Connect Power cable
Use the negative power cable to connect the negative bus bar with the battery
negative (‘-’) terminal, and use the positive power cable to connect the positive
bus bar with the battery positive (‘+’) terminal.
A. Use the communication cable to connect the battery packs in series through
the RS485 communication port, and connect the battery packs at the end to the user's
RS485 communication port through the RS485 communication port.
B. Assign addresses to battery packs. Assign addresses to battery packs by dialing
the dialing keys of the dialing switch. Please refer to 5.2.3 about the correspondence
between DIP switch and battery pack address.
3 Connect Communication Cable
Figure 6-6 Connect RS485 Communication Cable
Wear safety protection equipment to prevent electric shock from causing
electric shock injuries.
Use insulated tools to avoid electric shock.
Communication cables and power cables must be laid separately.
Before connecting cables, make sure that the bus-bars at the user end are in
disconnected state.
Pay attention to the polarity of the battery pack.
ATTENTION
6 Installation
Figure 6-7 Connect the 120Ω Resistor
To ensure stable CAN communication with the inverter when batteries are used in
parallel, please take out a 120Ω resistor from the ‘Battery Kit’ and insert it into
the RJ45 port of the battery that communicates farthest with the inverter.
4 120Ω Resistor Connection
After completing the installation of the battery, users need to perform a pre-power
check to ensure that the device installation and cable connection are correct.
Check whether the cables are connected correctly, and the connectors are fastened.
Check whether the battery pack’s power cable terminal is snapped into place and
covered with an insulating cover.
Check whether the long cables are bundled.
Check whether the communication cable and the power cable are separated.
Check whether the cabinet，battery pack are grounded.
7.1 Power-on Operation
7.1.1 Pre-check Preparing Power-on Operation
7 Power On
Figure 7-1 Check the Battery Voltage
7 Power On
1 Power on the charger/inverter at the user terminal.
2 Set the battery MCB/Switch to ON (if available).
3 Observe Run/Alarm indicator and judge the battery operating status. If the
RUN indicator of the battery is on and the ALARM indicator is off, indicating that the
battery is working normally.
4 Please configure the actual number of batteries in parallel connection through
the UIWare. As follows
.
7.1.2 Power On
This section is for professionals only and requires specific tools and software.
Currently only open to growcol accredited engineers.
NOTE
7 Power On
1 Connect the UIWare by computer successfully.
2 Click the 'HOMESTORE' page.
3 Select the actual number of batteries in parallel connection on the 'SYSTEM
PACK SUM'
4 Click the‘Write’ button to finish the setting.
5 Restart the battery.
2
3
4
Figure 7-2 Configuration Page
Please refer to the“UIWare User Manual”for more UIWare operations.
NOTE
7.1.3 UIWare Configuration
7 Power On
Please refer to the section 7.2 to get information of battery system parame-
ter setting, refer to the section 5.2.2 to get information of indicator description.
Figure 7-3 Page of UI Software
Connect the PC UI software to confirm the system running information been
displayed normally. If the displays normally, then we can know the battery is well and
the parameter settings are right.
7.1.4 Check by UI software
NOTE
Follow the power-on procedure to power on the battery pack strictly .
Make sure to turn on the charger/inverter firstly, before turning on the
battery MCB/Switch.
Must not change the parameters casually in the site.
After VT48200B series batteries goes into the sleeping status, please turn
on the Battery MCB/Switch against or press the reset button.
WARNING
Table 7-1 Parameter Setting
No. Parameters Units
Standard Value
15S 16S
1 Equalization charge voltage V 54.1 56.5
2 Float charge voltage V 54.0 56.4
3
4
Standard charge current
A
0.2C
0.2C
5
Charge current limitation
A
20.0
20.0
6
Condition to equalization charge
A
NA
NA
7
Condition to float charge
A
0.05C
0.05C
8
Recovered LLVD voltage
V
50.0
53.3
9
LLVD
V
47.0
50.1
10
BLVD
V
43.2
46.1
11
Temperature compensation for float charge
-mV/°C
NA
NA
Temperature compensation for
equalization charge
-mV/°C NA NA
The content in the table is just our suggestion, and actually need to refer to
other related requirements.
The setting items of different chargers will be different.
NOTE
Details refer to the “Operation Manual of the VM UI Software”.
Please recharge the battery before put into use according to this manual.
7 Power On
WARNING
7.2 Power System Parameter Setting
Whether the loading SOC status of the battery is allowed, you need to consult
the relevant government transportation department.
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.
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%
Sea:50%
Vehicle:50%
8.1 Shipment
8.2.1 Battery Maintenance Considerations
8.2 Maintenance
NOTE
8 Shipment & Maintenance & Storage
8 Shipment & Maintenance & Storage
Suggested routine maintenance for every three-month.
The staff should perform visual inspection on VT48 series battery according to
the inspection plan, please refer to the following table for maintenance.
8.2.2 Routine Maintenance
Table 8-1 Routine Maintenance（Every three-month）
NOTE
Items Standard Dealing
Battery
Appearance
Alarm
No Alarm.
Find the solution as per alarm information.
If the surface is dirty, clea n 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 Vestwoods in time for
other abnormal situations.
The surface is neat and clean
without stains.
The terminals are in
good condition.
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.
8 Shipment & Maintenance & Storage
Table 8-2 Routine Maintenance（Every six-month）
Items Standard Action
（Suggested）
Complete
Cycle
Check whether happens alarm action,
and please check with the alarm list.
Please contact with Vestwoods if the
alarm still exists.
Cables
Have a complete charge & discharge
cycleunder the equipment no
lack of power.
Replace the faulty connection.
Fastening bolts.
There is no aging of the connecting
wire and no cracking of the
insulation layer.
The bolts at the cable connection
are not loose.
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 re
duce 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：
8.3 Battery Storage
Table 8-3 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
9 Trouble Shooting
Table 9-1 FAQ
Please refer to the table below to deal with common faults：
Phenomenon Possible Cause Solution
The indicator
does not flash
The power cable of the battery pack is not
properly connected.
Reconnect the power cable of the battery pack
The power switch is off. Turn on the power switch.
The BMS is in a sleep state. Charge the battery pack
BMS is damaged. Replace BMS.
Unable to
discharge
The terminal of the battery pack is
damaged.
Replace the battery pack wiring terminals.
BMS communication failure.
Reconnect the communication line between the BMS
and the battery pack. If the communication cable is
damaged, replace the communication cable.
The power switch is off. Turn on the power switch.
Unable to
charge
The charger is malfunctioning. Replace the charger.
The terminal of the battery pack is
damaged.
Replace the battery pack wiring terminals.
BMS communication failure.
Reconnect the communication line between the BMS
and the battery pack. If the communication cable is
damaged, replace the communication cable.
The power switch is off. Turn on the power switch.
Communication
fail
The power switch is off.
Turn on the power switch.
The BMS is in a sleep status. Charge the battery pack
The communication cable is damage. Replace the network cable.
Inaccurate
voltage display
The voltage sampling line is damaged.
Replace the voltage sampling cable.
BMS is damaged. Replace BMS.
Low capacity
The battery pack has not been maintained
for a long time.
Use an equalizer to maintain the battery pack.
The single battery is damaged. Replace the damaged single battery.
Inaccurate voltage sampling.
Replace the electrical sampling line or replace the BMS.
Low cell
voltage
The battery pack has not been maintained
for a long time.
Use an equalizer to maintain the battery pack.
The single battery is damaged.
Inaccurate voltage sampling.
Replace the damaged single battery.
Replace the electrical sampling line or replace the BMS.
Except for the following and the conditions specified in the contract, you can go
to Vestwoods and authorized dealers for reasonable warranty and maintenance.
1 Failure of equipment caused by unauthorized disassembly and maintenance
operations without the authorization of Vestwoods and 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 authorization of
Vestwoods and 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.
10 Warranty
11 Abbreviations
BMS
D
H
W
LCD
LFP
MOSFET
NTC
PC
PCB
PCS
RTU
SOC
Battery Management System
Depth
Height
Width
Liquid Crystal Display
LiFePO4
Metal-Oxide-Semiconductor Field-Effect
Transistor
Negative Temperature Coefficient
Personal Computer
Printed Circuit Boar
d
Power Conversion System
Remote Terminal Unit
State of Charge
