Voltacon Li-2021 48100R User manual

Lithium Ion Li2021 ESS48-2U-L LFP Battery User Manual
Silent Power Lithium Ion Battery
Li-2021 48100R
User Manual
V1.2

Voltacon Li5120 – ESS LFP Battery User Manual
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Li5120 / 48100R LFP Lithium Iron Phosphate Battery
Dear customer,
This is your Voltacon Li-2021 / 48100R LFP battery for home energy
storage system. We provide safe, well-designed and high-performance
standard LFP battery pack for you. The battery pack is compact, easy to install,
free of maintenance and used as the building block of energy storage system
by assembling in parallel. It is widely applied in home applications, small
commercial and industrial energy storage system as well as Telecom stations.
This manual contains all the information necessary to install, use and
maintain the LFP battery. We kindly ask you to read this manual carefully before
using the product.
This manual is meant for the installer and the user of the LFP battery. Only
trained and qualified staff may install and perform maintenance on the LFP
battery.
The boundaries of its use, as described in this manual should be kept in
mind. The LFP battery may not be used in medical or in aviation related
applications. The LFP battery may not be used for any purposes other than
described in this manual. Using the LFP battery for any other purpose will be
considered improper use and will void the warranty of the product. VOLTACON
cannot be held responsible for any damage caused by improper, incorrect or
unwise use of the product. Read and understand this manual completely before
using the product. During the use of the product, user safety should always be
ensured, so installers, users, service personnel and third parties can safely use
the LFP battery.
This is the original manual, keep it in a safe location! Please consult
www.voltacosolar.com for the latest version of all manuals.
VOLTACON UK LIMITED
Burnsall Road | Industrial Estate | Canley | Coventry | CV5 6BU| United Kingdom
Website https://ww.voltacon.com
Tel: [phone]
Email: [email protected]

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1 Specifications
Table 1-1 Battery Pack Specifications
Battery Model Li-5120 / 48100R
Chemistry LFP
Nominal Voltage 51.2V
Voltage Range 44.8V-57.6V
Nominal Capacity 100Ah
Nominal Energy 5.12kWh
Unit Dimension L480mm* W620mm * H117mm（2.6U）
Unit Weight 51kg
Standard Charge Current 50A
Maximum Charge Current 50A
Standard Discharge 50A
Maximum Discharge Rate 70A
Round-Trip Efficiency ≥95%
Communication Protocol RS232, RS485, CAN
Cycle Life ≥6[email protected]/0.5C
@90%DOD, ret@80%, 25℃
Calendar Life ≥10years
Operating Temperature Charge: 0℃~ 45℃, Discharge: -20℃~ 55℃
Certificates IEC62619 / UN38.3
Storage Temperature Within 1month: -20~45°C

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1-3months: -20~35°C
3-12months: 20~25°C
1.1 Product standard configuration
Items Quanti
ty Specifications Pictures
Li-5120/48100R 1pcs
51.2V/100Ah LFP pack;
including BMS, three
interfaces (CAN/RS-
485/RS232), 2 Link ports,
LED power indicator and
insulated coating metal
case.
Power Cable
1set
Connect battery to battery;
0.2m; Positive and negative
Communicate
Cable 1pcs
Connect battery to battery;
0.2m;CAN or RS485
communicate
Earthing cable
1pcs 1m
User Manual
1pcs
Please read the User
manual before you use this
product.

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2 Interface and protection functions
2.1 Battery front panel
2.2 Battery front panel schematic
2.3 Components
No.
Name
Label
Functions description
1 Power button POWER
Power button. When switched to "ON",
the system can be activated by the
"SW" key or external power supply;
when switched to "OFF", the system is
off.

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Power Indicator When the switch is turned "ON", the
power indicator is on.
2 DIP switch ADD Select the match manufacturer, see the
match list(appendix A)
3 Soft start switch SW
Press and hold this button for 1
second while the switch key is "ON"
to enter Start or Sleep mode
4
Running lights RUN
Green lights. The lights flash when
Standby. The lights are constantly on
when charging. The lights flash when
discharging.
Alarm indicator ALM
Red light. The lights flash when
Alarm. The lights are constantly on
when Protected.
5 RS-232C
communication port RS232 Communication with the upper
computer
6 Power indicator CHARGE
A total of 6 green lights showing
battery capacity, each representing
16.7% of SOC.
7 External CAN
communication port CAN Communication with external devices
8 External RS-485
communication port RS485 Communication with external devices
9Cascade terminal Link Port
Used for master-slave cascade
communication. Connected with a
standard direct-connected network
cable, the master is connected to
PORT1, and the slave is connected
to PORT0.
10 Positive Pole and
Negative Pole + -

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2.4 Battery Management System (BMS)
Voltacon BMS is an electronic system that manages lithium ion
batteries such as by protecting the battery from operating outside its safe
operating area, monitoring its state, calculating secondary data,
reporting that data, controlling its environment, authenticating it and
balancing it. The high performance of BMS is guaranteed by adopting
Automotive-level chips and self-developed sophisticated DLGOS BMS
software.
3 Operating Environment
Battery operating environment requirements:
Operating Temperature: -20℃~55℃
Relative Humidity: 20%-80%, no condensation
Altitude: ＜4000m
Site environment requirements: Keep away from heat source, avoid
direct sunlight, no corrosive gas, no explosive gas, no insulating gas, no
insulating conductive dust.

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4 Packaging, transportation, storage
requirements
4.1 Transportation
Always check all applicable local, national, and international
regulations before transporting an LFP battery.
During the transportation, protected the battery from severe
vibration, shock or squeezing during transportation, as well as to prevent
sun and rain.
During the loading and unloading process, the battery should be
handled lightly and protected against falling, rolling and heavy pressure.
4.2 Storage
Follow the storage instructions in this manual to optimize the
lifespan of the LFP battery during storage. If these instructions are not
followed and the LFP battery has no charge remaining when it is checked,
consider it to be damaged. Do not attempt to recharge or use it. Replace
it with a new LFP battery.
See previous storage temperature conditions.
The self-discharge of the LFP battery is 1-2% per month. Keep the
battery SOC to 40%-60% during storage.
1. Disconnect the LFP battery from all loads and, if present, the
charging device.
2. Store the battery in a cool and dry place without direct sunshine.
2. Keep the battery away from corrosive substances, inflammable
and explosive material as well as hazardous gases.
4. For long-term storage (＞6months), charge the LFP battery to more
than 80% of its rated capacity before storage. The battery needs to be
recharged every 6months to more than 80%of the rated capacity.

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5 Installation and configuration
5.1 Installation preparation
5.1.1 Safety Requirements
Only those who have been trained in the power system and have a
good knowledge of the power system are allowed to install the device.
Always observe local safety regulations and the safety requirements
listed below during installation process.
Before installing or removing the device, make sure that the power
system is not powered and that the battery device is turned off.
Distribution cabling should be reasonable and with protective measures
to avoid being touched during operation.
5.1.2 Checking the operating environment
The operating environment should meet the requirements
described in Chapter 4, “Operating Environment”. Otherwise, it needs to
be adjusted and re-examined.
5.1.3 Tools
The tools that may be used are shown in Table 6-1.
Table 6-1 Tools
Tools
Screwdriver (Slotted, Phillips) Multimeter
Wrench clip-on ammeter
Diagonal pliers Insulating tape
Thermometer Pliers
Anti-static wrist ring Clip Pliers
Tapes Strippers

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5.1.4 Technical preparation
Electrical interface settings:
If the battery is connected to the user device directly, please check:
●Whether the DC charging interface of the energy storage inverter
meets the charging voltage and current requirements in Table 2-1
Battery Pack Specifications.
●Whether the power of the electrical equipment matches the
parameters listed in “Table 2-1 Battery Pack Specifications”;
Security check:
Fire-fighting equipment such as portable dry powder fire
extinguishers should be available near the equipment. Do not place
dangerous materials such as flammable or explosive ones near the
battery.
5.2 Unpacking
●When the battery arrives at the installation site, it must be loaded and
unloaded properly and prevented from the direct sunshine and rain.
Before installation, check if there is any component missing according
to packing list attached in the packing box and check whether the box
appearance is intact;
●Carefully handling during the unpacking. Protect the insulated coating
on the case surface;
●Check the LFP battery for damage after unpacking. If there is any
damage, contact Voltacon or your reseller.