BAK BTESF48V50-R User manual

SHENZHEN BAK POWER BATTERY CO., LTD
Integrated Lithium-ion Battery Pack
User Manual
Version：V1.2
Released Date：2019-10-08

Copyright ©SHENZHEN BAK POWER BATTERY CO., LTD 2019. All rights reserved.
Without the company's written permission, no unit or individual may unlawfully copy in part or in whole
the content of this document and shall not disseminate it in any form.
Trademark Statement
and BAK other trademarks are the trademarks of SHENZHEN BAK POWER BATTERY
CO. LTD. All other trademarks or registered trademarks mentioned in this document, by the
respectiveowners.
Attention
On purchasing the products, services or features, such as international commercial contracts, you
accept and are bound by the terms described in this document, in part or in whole, the product, services
or features are strictly for your own purchase or use. Unless otherwise agreed in the contract, BAK does
not make any express or implied representations or warranties within the content of this document.
For product version upgrades or other reasons, this document will not be updated on a regular basis.
Unless otherwise agreed, this document serves only as a guide, all the statements in this document,
information and recommendations do not constitute any express or impliedwarranty.
SHENZHEN BAK POWER BATTERY CO., LTD
Add: BAK Industrial Park. Kuichong Street. Dapeng District. Shenzhen. China
Phone: [phone]
E-mail:[e-mail]
Website: www.bak.com.cn

Integrated Lithium-ion Battery Pack
User Manual
FOREWORD
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ii
FOREWORD
Overview
This manual describes the installation, history recording, and parameter settings of
the battery and provides safety and general information.
Readers
This document provides technical details regarding the tools and infrastructure for the
following users:
⚫Sales engineer
⚫Technical support engineer
⚫Installation engineer
⚫Application engineer
⚫Maintenance engineer
Symbol convention
The following symbols may appear in this article and they are represented as follows:
Symbol
Indication
Used as warning in an emergency, if not avoided, it will result in
death or serious personal injury.
Used as a warning of a medium or low potential hazards, if
not avoided, it may cause minor or mildinjury.

Integrated Lithium-ion Battery Pack
User Manual
FOREWORD
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iii
Used as a warning of potential dangers, if this information is
ignored, it may result in equipment damage, data loss,
equipment performance decrease and other unpredictable
results.
represents supplementary information.
Change History
Changes between document issues are cumulative. The latest document issue
contains all the changes made in previous issues.
Version：V1.2 (2019-10-08)
This version is the second officialrelease.

Integrated Lithium-ion Battery Pack
User Manual
DIRECTORY
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DIRECTORY
FOREWORD..................................................................................................................................... ii
DIRECTORY .................................................................................................................................... iv
1OVERVIEW .................................................................................................................................... 6
1.1 Product specification..............................................................................................................................................6
1.2 Product profiles........................................................................................................................................................7
2ILLUSTRATION.................................................................................................................................. 8
2.1 Panel description .....................................................................................................................................................8
2.2 Menu operation instructions..............................................................................................................................13
2.3 The working principle...........................................................................................................................................15
2.4 The product features ............................................................................................................................................16
3INSTALLATION GUIDE ............................................................................................................18
3.1 Installation precaution notes..............................................................................................................................18
3.2 Installation preparation........................................................................................................................................20
3.2.1 Unpacking and inspection ...............................................................................................................................20
3.2.2 Installation tools ................................................................................................................................................. 21
3.3 Installation and wiring..........................................................................................................................................22
3.3.1 Standard cabinet installation...........................................................................................................................22
4MAINTENANCE......................................................................................................................... 26
4.1 Electrical maintenance .........................................................................................................................................26
4.2 Battery maintenance.............................................................................................................................................27
4.3 Treatment for malfunctions.................................................................................................................................27

Integrated Lithium-ion Battery Pack
User Manual
DIRECTORY
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5SPECIFICATIONS....................................................................................................................... 32
5.1 Technical specifications........................................................................................................................................32
5.2 The main performance index of the battery ..................................................................................................34
6ENVIRONMENT PROTECTION............................................................................................. 35
6.1 Environmental Label .............................................................................................................................................35
6.2 Recycle......................................................................................................................................................................35
7APPENDIX ................................................................................................................................... 36
7.1 Connection cable...................................................................................................................................................36

Integrated Lithium-ion Battery Pack
User Manual
1 OVERVIEW
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1 OVERVIEW
1.1 Product specification
The model number of the integrated lithium Ion battery (hereafter referred to as
lithium batteryor PACK)is shown in figure 1-1. It is currently available in a 50Ah
(BTESF48V50-R) and a 100Ah (BTESF48V100-R).
Figure1-1 The explanation of the product model number
     
BTESF48V100-R
Trademark of BAK
The applications: Standby and solar
Cell materials: LFP
Nominal voltage: 51.2V
The capacity is 100Ah
Installation: Rack

Integrated Lithium-ion Battery Pack
User Manual
1 OVERVIEW
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1.2 Product profiles
The lithium battery group is developed by SHENZHEN BAK POWER BATTERY CO., LTD.
Belonging to one of the series of 48V back-up lithium battery products, the system uses
international advanced lithium iron phosphate battery application technology and BMS
control technology. Due to it’s a long lifecycle, small size, light weight, stable
performance, safety and environmental protection, as well as a strong ability to adapt, it
can be used in harsh outdoorenvironments.
The system integrates advanced battery management system (BMS), including
charge and discharge management, thermal management, communication
management, balance management, data management, and realize remote
centralized monitoring, remote management and maintenance of the battery. It has
outstanding advantages in specific applications such as backup power supply as
widely used in remote access network equipment, exchanges, mobile
communication equipment, transmission equipment, satellite and microwave
communication equipment andcommunication.
With the operating voltage programmed in the BMS to 44V to 55.2V, the battery can
also be used in cyclic applications such as PV power systems.

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Integrated Lithium-ion Battery Pack
User Manual
2ILLUSTRATION
2 ILLUSTRATION
2.1 Panel description
The BTESF48V series lithium battery front panel is shown in Figure2-1 below.
Figure2-1 Module front panel
For detailed descriptions of each location, see the followingfigure2-2.

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Integrated Lithium-ion Battery Pack
User Manual
2ILLUSTRATION
Figure2-2 Front Panel Definition
1 2 3 4 5 6 7 8 9 10 12 13 11
Handle
Made of galvanized steel for lifting.
SOC
The meaning of SOC indication light shown in table 2-1.
Table2-1 The relationship between the capacity of the battery and the SOC light
●
●
●
●
Capacity
¤
¤
¤
¤
75%-100%
¤
¤
¤
○
50%-75%
¤
¤
○
○
25%-50%
¤
○
○
○
0%-25%
¤Indicates ON，○ Indicates OFF。
1 Handle
2 SOC (capacity light)
3 ALM（alarm）
4 RUN
5 ADD
6 RS232
7 RS485
8 RESET
9 Dry Contact
(not used)
10 Main panel
11 Mounting holes
12 Output-
13 Output﹢

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Integrated Lithium-ion Battery Pack
User Manual
2ILLUSTRATION
ALM
When the battery has a fault condition, the "ALM" light is red.
RUN
During charging, the "RUN" light will be green.
During discharging, the "RUN" light will beflashing.
"RUN" and "ALM" can display the battery status, as shown in table 2-2.
Table2-2 The explanation of “RUN” and “ALM”
Function
Mark
Color
Flashing frequency
Indication
Running
RUN
Green
No light
Not working
Slow Flash (about 3 secs)
Standby state
Fast flash
Working state
Alarm
ALM
Red
No light
Normal
Stable light
Alarm
ADD
When batteries are used in parallel, the four dip switches are used to set the
batteries’ addresses in the system. The address settings are shown in table
2-3.
Table2-3 Dip switches address code
Address Code
ADD
PACK
Definition
Explanation
1
2
3
4
OFF
OFF
OFF
OFF
0
PACK0
Use as Single Pack
ON
OFF
OFF
OFF
1
PACK1
Use as MasterPack
(When more than one
used in parallel)
OFF
ON
OFF
OFF
2
PACK2
Use as SlavePack2
ON
ON
OFF
OFF
3
PACK3
Use as SlavePack3
OFF
OFF
ON
OFF
4
PACK4
Use as SlavePack4
ON
OFF
ON
OFF
5
PACK5
Use as SlavePack5
OFF
ON
ON
OFF
6
PACK6
Use as SlavePack6
ON
ON
ON
OFF
7
PACK7
Use as SlavePack7
OFF
OFF
OFF
ON
8
PACK8
Use as SlavePack8

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Integrated Lithium-ion Battery Pack
User Manual
2ILLUSTRATION
Address Code
ADD
PACK
Definition
Explanation
1
2
3
4
ON
OFF
OFF
ON
9
PACK9
Use as SlavePack9
OFF
ON
OFF
ON
10
PACK10
Use as SlavePack10
ON
ON
OFF
ON
11
PACK11
Use as SlavePack11
OFF
OFF
ON
ON
12
PACK12
Use as SlavePack12
ON
OFF
ON
ON
13
PACK13
Use as SlavePack13
OFF
ON
ON
ON
14
PACK14
Use as SlavePack14
ON
ON
ON
ON
15
PACK15
Use as SlavePack15
RS232
The system uses RS-232 series communications to load data and transfer data
including: system parameters, system status and alarm information.
RS-232 generally uses 9600bps. The RS-232 port on the battery is only active when
the dip switch is set to Single Pack mode (ON,OFF,OFF,OFF). Connection is as
shown in figure 2-3.
Figure2-3 RS-232 connection schematic diagram

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Integrated Lithium-ion Battery Pack
User Manual
2ILLUSTRATION
RS485
RESET
When the system is in parallel mode, it uses the RS-485 serial port for data
transfer. The main system through the Master Pack to get the data for each Slave
Pack. Connection as shown in figure 2-4.
Figure2-4 RS-485 connection schematic diagram

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Integrated Lithium-ion Battery Pack
User Manual
2ILLUSTRATION
Press RST key for 3 seconds to start the device, or press the RST key for 3seconds
again to shut down the device. When the system is running, should there be an
exception (alarm), press this button for 6 seconds to reset the system (press /
release) to ensure the stability of the system.
Dry contact
Not used. (For special applications it can be factory wired/programmed to customer
requirements such as: To provide an interface for remote monitoring of the battery.
Failure Alarm: Indicate BMS or battery faults including but notlimited to charge and
discharge MOS fail, cell voltage under 0.5V,NTCdisconnect.
Protection Alarm: Output short circuit, charge and discharge over current, chargeand
discharge over temperature/low temperature.
Output
A terminal of 4 connections, 2 for positive, 2 for negative, each connection is for a
M6 ring-lug.
LCD display（optional）
LCD display can read Battery status, cell status, firmware version, protection/alarm,
etc.
2.2 Menu operation instructions（optional）
The LCD display interface is user-friendly, as shown in figure 2-5. It provides 320*
240 dot matrix graphic display. The LCD is able to display the alarm information in
real time, and provides the historical warning records for the user to query, and
provide a reliable basis for fault diagnosis.
Users can easily browse the battery parameters through the LCD interface, and
obtain timely access to information on the current state of the battery. The interface
displays a total of 5 menu keys, the functions described asfollows.
Figure2-5 LCD Display

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Integrated Lithium-ion Battery Pack
User Manual
2ILLUSTRATION
The commonly used button functions
Display function of the buttons are as shown in table2-4.
Table2-4 Button function description
Main menu
Confirm, enter
Page up
Page down
Return, launch
Operation procedures
1) Press once, the LCD display screen lights up, then the
welcome interface will be shown.
2) Followed by the prompt and then click once to enter the main menubar.

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Integrated Lithium-ion Battery Pack
User Manual
2ILLUSTRATION
3) Scroll page up and page down ，Enter the Menu
screen, when the points to the corresponding bar, press Enter
to confirm.
4) Go back on the menu bar, click .
2.3 The working principle
BTESF48V series lithium battery pack is equipped with charging and discharging
management module and monitoring module.
Charge and discharge management module protects battery charge and discharge
functioning, prevents overcharging, discharge over-current by adapting the DC input
as required for the charging process, and disconnecting the battery when fully
discharged.
The monitoring module provides the cell balance function and power, temperature
and SOC. The monitoring module transmits the real-time information collected in
the operation of the product through the protocol network to the monitoring platform,
and the user can observe the operation status of the battery in each group through
the display screen.
A single module is 51.2V, 50Ah or 100Ah. It can be used in standby applications
such as telecom power as shown in figure2-6, or in Solar/Wind applications with
solar/wind charge controller/inverter instead of the rectifier.

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Integrated Lithium-ion Battery Pack
User Manual
2ILLUSTRATION
Figure2-6 Telecom application example
2.4 The product features
BTESF48V series integrated lithium battery pack has the following
remarkable characteristics:
⚫The lithium iron phosphate cathode material has a long cycle life and its safety
is extremely good.
⚫The operating temperature range is: 0 ~ 45 ℃.
⚫It has strong charge and discharge capacity: charge and discharge rate can
support 1.0C.
⚫It can support up to 15 batteries in parallel for expansion.
⚫During storage and transport, the battery is set to sleep mode (Off), in order to
reducethe loss of capacity and disconnect active power from the output terminals
for enhanced safety.
⚫The Port design is convenient; all wire harness connected to the plug,
convenient connection.
⚫Lightweight, small size, easy to install and maintain, meets the requirements of
the standard cabinet, is able to be wall mounted, or mounted on apole.
⚫Built-in Battery status monitoring system (BMS) for real-time monitoring of
current and voltage, temperature, alarm and protection function.
⚫The function of "four remote" (telemetry, remote signaling, remote regulatingand
remote control), can be connected by computer with remote controlcenter.
⚫It is environmentally friendly.
1) Telemetry: voltage, current, temperature, SOC, SOH (optional), etc.
2) Tele-signal state of charge and discharge, overcharge / overcurrent, under voltage

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Integrated Lithium-ion Battery Pack
User Manual
2ILLUSTRATION
overcurrent alarm / alarm, environment / battery /PCBA/ battery temperature alarm, low
environmental temperature alarm, battery capacity is too low, the battery temperature /
voltage / current sensor failure alarm, battery failure alarm (just not cut off themonomer
pressure high limit alarm) (optional), battery failure alarm(optional).
3) Remote control: charge / discharge (optional), alarm sound off, intelligentintermittent
charging mode, current limiting charging mode,etc.
4) Optional: Battery charge / discharge management parameters and theoutput parameters
of the switching power supply system..

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Integrated Lithium-ion Battery Pack
User Manual
3 INSTALLATION GUIDE
3 INSTALLATION GUIDE
3.1 Installation precaution notes
Comply with local laws and regulations
When operating the equipment, make certain to comply with local laws and
regulations.
Personnel requirements
Technicians who are responsible for installation and maintenance are required to
undertake strict training on the BAK batteries first. Master the correct methods for
operation and safety, only then the installation, operation and maintenance can be
carried out.
In order to maximize the efficiency of the equipment, to obtain best possible
operating results, and ensure maximum lifespan, please pay careful attention to the
correct installation and usage requirements.
Personal safety
⚫Insulated tools and gloves should be used and worn at all times –During the
installation process, watches, bracelets, rings and other metal products should
be removed.
⚫Avoid any fall or collision during the installationprocess.
⚫Do not remove the battery components. The maintenance of the batteryshould
be carried out by a professional engineer.
⚫Should be operated and supervised by engineer who have experience and can
take preventive measures for potential hazards of battery.
Field and environment
⚫Site requirements
1) Cleanliness

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Integrated Lithium-ion Battery Pack
User Manual
3 INSTALLATION GUIDE
Lithium battery packs cannot be placed in or near garbage disposals, or accidentally
dropped or placed in smaller disposal units, as their interaction with metals is likely to
cause short circuits and endanger the system and personal safety.
2) Fire protection
The battery storage or installation room must not contain flammable, explosive and
other dangerousgoods, and it should be equipped with effective fire equipment
(such as CO2 fire extinguishers).
3) Ventilation and heatdissipation
For optimum operation and maintenance access the equipment should be installed
with 30cm –50cm clearance all round, with preferably 50cm clearance above it. If
installed in a cabinet or cramped area, an exhaust fan should be installed to
maintain good indoor ventilation.
4) Installation requirements
Installation should be carried out as shown in figure 3-1 in order to avoid possible
risks.
Put the lithium battery on the ground (to avoid tilt, uneven ground).
Avoid placing in the sunlight, rain or wetsurfaces.
Figure3-1 Requirements for installation scenarios
⚫Environmental requirements
Ambient temperature: ( -10~+40) ℃.
Relative humidity level: 0%RH~95%RH, no condensation.
Cooling method: air cooler.
Height above sea level: match to the standard requirement of GB3859.2-93.
Verticality: no vibration and the vertical inclination does not exceed5º.
Pollution level: Level ⅱ.
Recommended operating temperature : (20~25) ℃, humidity level control within50%.