LEOCH LFeLi-48100MB15 User manual

LEOCH International Technology Limited
Integrated Lithium-ion Battery Pack for Residential Storage
User Manual
Version：V1.1
Released Date：2022-05-17
Document Number：LB-LFeLi-48-MB-EN-V1.0-202205

Copyright © LEOCH international technology co., Ltd. 2022. 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 LEOCH other trademarks are the trademarks of LEOCH international technology co.
All other trademarks or registered trademarks mentioned in this document, by the respective owners.
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, LEOCH
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 implied warranty.
LEOCH International Technology Limited
Add: Room 1401, 14th floor, Block A, Building 6, Zhonggang Plaza, Exhibition Bay, No. 83, Zhanjing
Road, Heping Community, Fuhai Street, Baoan District, Shenzhen, 518000.
Phone: [phone]
Fax: [phone]
E-mail:[e-mail]
Website: www.leoch.com

Integrated Lithium-ion Battery Pack For Telecom
User Manual
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FOREWORD
Overview
This manual describes the installation, history recording and parameter settings etc.
Please keep the manual in safety for more information.
Readers
This document provides technical details regarding the tools and infrastructure used
by 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 middle or low potential hazards, if not
avoided, it may cause minor or normal injury.

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Used as a warning of potential dangers, if ignore this information,
it may result in equipment broken, data lost, equipment
performance decrease and other unpredictable result.
represents the supplement information of main text to emphasize
or replenish.

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DIRECTORY
FOREWORD .................................................................................................................................... ii
DIRECTORY .................................................................................................................................... iv
1 OVERVIEW..................................................................................................................................... 6
1.1 Product specification .............................................................................................................................................. 6
1.2 Product profiles........................................................................................................................................................ 6
1.3 Product structure ..................................................................................................................................................... 7
2 ILLUSTRATION............................................................................................................................. 8
2.1 Explanation of the structure.................................................................................................................................. 8
2.2 Panel description ..................................................................................................................................................... 9
2.3 Menu operation instructions .............................................................................................................................. 13
2.4 The working principle........................................................................................................................................... 14
2.5 The product features ............................................................................................................................................ 15
3 INSTALLATION GUIDE ............................................................................................................ 17
3.1 Installation precaution notes.............................................................................................................................. 17
3.2 Installation preparation........................................................................................................................................ 19
3.2.1 Unpacking and inspection................................................................................................................................ 19
3.2.2 Installation tools.................................................................................................................................................. 20
3.3 Installation and wiring.......................................................................................................................................... 21
3.3.1 Single installation ............................................................................................................................................... 21
3.3.2 Multiple sets of parallel installation............................................................................................................... 22

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4 MAINTENANCE ......................................................................................................................... 24
4.1 Electrical maintenance.......................................................................................................................................... 24
4.2 Battery maintenance............................................................................................................................................. 25
4.3 Trouble shooting steps......................................................................................................................................... 25
5 SPECIFICATIONS ....................................................................................................................... 27
5.1 Technical specifications........................................................................................................................................ 27
5.2 The main performance index of the battery .................................................................................................. 29
6 ENVIRONMENT PROTECTION............................................................................................ 30
6.1 Environmental Label .................................................................................................................................................. 30
6.2 Recycle...................................................................................................................................................................... 30
7 APPENDIX ................................................................................................................................... 31
7.1 Connection cable ........................................................................................................................................................ 31

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1 OVERVIEW
1.1 Product specification
The model of integrated lithium Ion battery (hereafter referred to as lithium battery or
PACK) for Telecom is shown in figure 1-1.
Figure1-1 The explanation of the product specification
①Trademark of Leoch: LEOCH
②The main ingredient of Lithium Ion battery is Lithium iron phosphate
③The pressure is 48V
④The capacity is 100Ah
⑤M stands for Household energy storage, B stands for LCD display
⑥16 series of cells
1.2 Product profiles
48MB lithium iron phosphate battery is one of new energy storage products
developed and produced by Leoch. It can be used to support reliable power for
various types of equipment and systems. 48MB is especially suitable for application
scene of high power, limited installation space, restricted load-bearing and long cycle
life.
48MB has built-in BMS battery management system, which can manage and monitor
cells information including voltage, current and temperature. What’s more, BMS can

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balance cells charging and discharging to extend cycle life. Multiple batteries can
connected in parallel to expand capacity and power in parallel for larger capacity and
longer power supporting duration requirements.
1.3 Product structure
The appearance of the lithium battery pack is shown in figure 1-2, for interface
description; please refer to the 2.2 panel description".
Figure1-2 Product picture

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2 ILLUSTRATION
2.1 Explanation of the structure
The structure of Lithium Ion battery pack as shown in figure 2-1.
Figure2-1 Product structure

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2.2 Panel description
The panel of the module of the lithium battery pack, as shown in figure 2-2.
Figure2-2 Module panel description
Battery Output
Using 4 pin terminal pins, the front of the terminal from left to right is defined as
battery+, Battery-, Battery+, battery-, which is connected with the power transmission
line for charging and discharging.
SOC
The meaning of SOC indication light is shown in table 2-1
Table2-1 The relationship between the capacity of the battery and the light
●●●●Capacity
¤¤¤¤75%-100%
¤¤¤○50%-75%
¤¤○○25%-50%
¤○○○0%-25%
¤indicates ON，○indicates OFF。

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ALM
When the battery is at fault, "ALM" light is red.
RUN
During charging, the "RUN" light will be flashing.
"RUN" and "ALM" can display the battery status, as shown in table 2-2.
Table2-2 The explanation of “RUN” and “ALM”
Note:The flashing instructions,flash1-light 0.25s/off 3.75 seconds;flash2-0.5 slight /0.5soff;flash3-0.5 slight
/1.5s off.

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ADD
In parallel, band switch using four dip switch to address set cell system. The
explanation of its dial switch as shown in table 2-3.
Table2-3 Band switch address code
Address Code ADD PACK
Definition Explanation
1 2 3 4
OFF OFF OFF OFF 0 Use Alone
ON OFF OFF OFF 1 PACK Use As Master Pack
OFF ON OFF OFF 2 PACK1 Use as SlavePack1
ON ON OFF OFF 3 PACK2 Use as SlavePack2
OFF OFF ON OFF 4 PACK3 Use as SlavePack3
ON OFF ON OFF 5 PACK4 Use as SlavePack4
OFF ON ON OFF 6 PACK5 Use as SlavePack5
ON ON ON OFF 7 PACK6 Use as SlavePack6
OFF OFF OFF ON 8 PACK7 Use as SlavePack7
ON OFF OFF ON 9 PACK8 Use as SlavePack8
OFF ON OFF ON 10 PACK9 Use as SlavePack9
RS232
(RJ11 port) follow RS232 protocol, for manufacturer or professional engineer to
debug or service.
RS485

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R485 Communication Terminal: (RJ45 port) follow RS485 protocol, for output
batteries information.
CAN
CAN Communication Terminal:(RJ45port) follow CAN protocol,for output batteries
information.
Dry Contact Terminal
Dry Contact Terminal:provided 2 ways input and 2 ways output dry contact signal.
Parallel communication
BMS can be connected in parallel through 485. When wiring, the CORRESPONDING
A and B of each 485 interface should be connected respectively. In parallel
communication, the slave machine can be collected by the host and uploaded to the
inverter or upper computer.

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RESET
Press RESET key for 5 seconds, then start the device, press the RESET key for 5
seconds again, then shut down the device. When the system is running, should there
be an exception, use this button to reset the system (press / release) to ensure the
stability of the system.
2.3 Menu operation instructions
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 as follows.
Figure2-3 LCD Display
The commonly used button function
The display function of the button as shown in table 2-4.
Table2-4 Button function description
Main menu
Confirm, enter

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Page down
Return, launch
Operation procedures
1) Press once, the LCD display screen light up, then the welcome
interface will be shown.
2) Followed by the prompt and then click once to enter the main menu bar.
3) Scroll page up ，Enter the Menu screen, when the arrow points to
the corresponding bar, press Enter to confirm.
4) Go back on the menu bar, click .
2.4 The working principle
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, the charging process by
the adapter charger to the DC input form, the discharge process is completed by
connecting the load discharge.
The monitoring module has the balance function and power, temperature and SOC.
The monitoring module transmits the real-time information collected in the operation
of the product through the Telecom protocol network to the monitoring platform, and
the user can observe the operation status of the battery in each group through the
display screen.

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A single module has a 48V (100~200) Ah, with a large capacity, can be used in
accordance with user requirements arbitrary combination. As shown in figure 2-6.
Figure2-4 the working principle diagram
2.5 The product features
Integrated lithium battery pack for Telecom has the following remarkable
characteristics:
The whole module is non-toxic, non-polluting and environmentally friendly;
The system can automatically manage charge and discharge state and balance
current and voltage of each cell;
Flexible configuration, multiple battery modules can be in parallel for expanding
capacity and power
Adopted self-cooling mode rapidly reduced system entire noise;
The module has less self-discharge, up to 6 months without charging on shelf ;
no memory effect, excellent performance of shallow charge and discharge;
Working temperature range is from -20℃to 60℃, (Charging
0~60℃; discharging -20~60℃) with excellent discharge performance and
cycle life;
Small size and light weight, standard of 19-inch embedded designed module is
comfortable for installation and maintenance;

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1) Telemetry: voltage, current, temperature, SOC, SOH (optional), etc.
2) tele-signalling state of charge and discharge, overcharge / overcurrent, under voltage
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 the monomer
pressure high limit alarm) (optional), battery failure alarm (optional).
3) Remote control: charge / discharge (optional), alarm sound off, intelligent intermittent
charging mode, current limiting charging mode.
4) Optional: Battery charge / discharge management parameters and the output parameters
of the switching power supply system..

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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 in Leoch at 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 installation process.
Do not remove the battery components. The maintenance of the battery should
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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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 room is prohibited to store flammable, explosive and other dangerous goods,
and it should be equipped with effective fire equipment (such as CO2 fire
extinguishers).
3) Ventilation and heat dissipation
In order to facilitate the operation and maintenance of equipment for the heat, the
equipment should be left around (50~30) cm around at least, left about 50cm for the
upper space. The space should be equipped with exhaust fan, 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 wet surfaces.
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 exceed 5º.
Pollution level: Levelⅱ.
Recommended operating temperature : (20~25) ℃, humidity level control within 50%.

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Do not install in the working environment with metal conduction type dust.
Do not put anything containing corrosive gases.
Do not put anything in the dust concentrated areas.
Do not place any items on the top of lithium-ion battery pack. People could not sit on the
battery.
Power check
Before installation, please confirm that the load capability of inlet wire meets the
requirements of the new equipment. Check to see if the power supply corresponds to
the equipment nameplate of the voltage and frequency and if the current capacity
has decreased due to the aging of the wire.
If in doubt, please check with your local power supply Consultation Department.
Ground wire
Earthing terminal is ready; zero voltage required in the room cannot exceed 5V.
DC output voltage and load capacity
Lithium-ion battery pack of rated DC output 48V.
DC output power
When installing the lithium-ion battery pack, the user should check the lithium-
ion battery pack in advance to make sure that the contacts and connectors are safely in
place to avoid an open circuit or short circuit fault.
During installation, do not connect the lithium batteries polarity in reverse or inany
way incorrectly, to avoid causing a short circuit.
Please do not connect the terminals with no security or insulation protection, so as to
avoid the risk of electric shock.
3.2 Installation preparation
3.2.1 Unpacking and inspection
Lithium batteries and accessories use packaging of cardboard boxes or wooden
boxes. When unpacking, be careful when dismantling. Inspect the device and
accessories according to the package list, to ensure it’s complete and make certain
nothing was damaged during shipping.
Before clearing the packaging, make sure that all parts are included.If equipment
or accessories are damaged in transit, or incomplete or incompatible,