DLG E-Box Series User manual

DLG E-Box-48100R LFP Battery User Manual
E-Box Series
User Manual
V1.0

DLG E-BOX SERIES LFP Battery User Manual
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DLG E-BOX SERIES LFP Battery User Manual
Dear customer,
This is your DLG E-BOX SERIES LFP battery for home energy storage
system. We provide safe, well-designed and high-performance standard LFP
battery packs 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 staffs 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. DLG 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
http://www.dlg-battery.com for the latest version of all manuals.
DLG (SHANGHAI) Electronic Technology CO., LTD.
Add: No.3492 Jinqian Road, Qingcun Town, Fengxian District, Shanghai, China.
Website: http://www.dlg-battery.com
Tel: [phone]
Email: [e-mail]

DLG E-BOX SERIES LFP Battery User Manual
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Before Using
Read and understand the following instructions:
1.This equipment may only be installed, operated and maintained
by trained and qualified staff.
2.The local safety regulations and relevant operating procedures
must be observed during the installation, operation and
maintenance of the equipment, otherwise the equipment may be
damaged. The safety precautions mentioned in the manual are
only intended to the supplement of local safety regulations.
1. Do not dispose of batteries in a fire. The batteries may explode.
2. Do not open or mutilate batteries. Released electrolyte is harmful
to the skin and eyes. It may be toxic.
3. A battery can present a risk of electric shock and burns by high
short-circuit current.
4. Failed batteries can reach temperatures that exceed the burn
thresholds for touchable surfaces.
The following precautions should be observed when working on
batteries:
a) disconnect the charging source before connecting or
disconnecting battery terminals;
b) do not wear any metal objects including watches and rings;
c) do not lay tools or metal parts on top of batteries;
and in addition, when the battery maintenance cannot be
performed by an ordinary person, the following applies
d) use tools with insulated handles;
e) wear rubber gloves and boots;
Warning
Caution

DLG E-BOX SERIES LFP Battery User Manual
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1. Keep the Li-ion battery away from water, dust and
contamination, otherwise it may cause explosion or other dangers
and may even lead to personal injury.
2. Do not short-circuit the Li-ion battery.
3. Observe the plus (+) and minus (-) marks on the Li-ion battery
and equipment and ensure correct use. Do not reverse connect the
Li-ion battery.
4. Do not dismantle, crush, puncture, open or shred the Li-ion
battery.
5. Before moving or reconnecting the running system, the power
must be off and the system should be shut down, otherwise there
will be risk of electric shock.
6. Do not expose Li-ion battery to heat or fire. In case of fire, please
use dry powder fire extinguisher.
7. Do not dismantle any part of the system without contacting DLG
or DLG authorized technical engineers. System failure caused by
such will not be covered by the warranty.
Danger
f) determine if battery is either intentionally or inadvertently
grounded. Contact with any part of a grounded battery can result
in electric shock and burns by high short-circuit current. The risk of
such hazards can be reduced if grounds are removed during
installation and maintenance by a skilled person.
1. Before moving or reconnecting the running system, the power must
be off and the system should be shut down, otherwise there will be risk
of electric shock.
2. Do not expose Li-ion battery to heat or fire. In case of fire, please
use dry powder fire extinguisher.
3. Do not dismantle any part of the system without contacting DLG or
DLG authorized technical engineers. System failure caused by such will
not be covered by the warranty.

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Contents
1 Specifications ...............................................................................................5
1.1 Product standard configuration......................................................6
1.2 BMS function.....................................................................................7
2 Interface and protection functions.............................................................7
2.1 Battery front panel schenatic..........................................................7
2.2 Components ......................................................................................7
3 Operating Environment...............................................................................9
4 Packaging, transportation, storage requirements ..................................9
4.1 Transportation ...................................................................................9
4.2 Storage...............................................................................................9
5 Installation and configuration ...................................................................10
5.1 Installation preparation ..................................................................10
5.2 Unpacking........................................................................................ 11
5.3 The preparatory work.....................................................................12
5.4 Installation........................................................................................12
6 Communication ..........................................................................................17
6.1 RS232 port.......................................................................................18
6.2 RS485 port and CAN port.............................................................18
7 Troubleshooting..........................................................................................19
7.1 Unable to start.................................................................................19

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1 Specifications
Table 1-1 Battery Pack Specifications
Battery Model
E-BOX-4850
E-BOX-48100C
E-BOX-48100R
Chemistry
LFP
LFP
LFP
Nominal Voltage
48V
51.2V
51.2V
Voltage Range
45V-54V
47.5V-57.6V 47.5V-57.6V
Nominal Capacity
50Ah
100Ah
100Ah
Nominal Energy
2.4kWh
5.12kWh
5.12kWh
Unit Dimension
L440mm* W420mm
* H89mm（2U）
L440mm* W480mm
* H200mm（4.5U）
L440mm* W620mm
* H117mm（2.6U）
Unit Weight
25kg
50.6kg
51kg
Standard Charge Current
50A
50A
50A
Maximum Charge Current
50A
50A
50A
Standard Discharge
50A
50A
50A
Maximum Discharge Rate
50A
50A
50A
Round-Trip Efficiency
≥95%
≥95%
≥95%
Communication Protocol
RS232, RS485,
CAN
RS232, RS485,
CAN
RS232, RS485,
CAN
Cycle Life
≥6000cycles@0.5C
/0.5C@90%DOD,
ret@80%, 25℃
≥8000cycles@0.5C
/0.5C@90%DOD,
ret@80%, 25℃
≥6000cycles@0.5C
/0.5C@90%DOD,
ret@80%, 25℃
Calendar Life
≥10years
≥10years
≥10years
Operating Temperature
Charge: 0℃~ 45℃,
Discharge: -10℃~
50℃
Charge: 0℃~ 45℃,
Discharge: -10℃~
50℃
Charge: 0℃~ 45℃,
Discharge: -10℃~
50℃
Certificates
IEC62619 / UN38.3
IEC62619 / UN38.3
IEC62619 / UN38.3

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Storage Temperature
Within 1month:
-20~45°C
1-3months:
-20~35°C
3-12months:
20~25°C
Within 1month:
-20~45°C
1-3months:
-20~35°C
3-12months:
20~25°C
Within 1month:
-20~45°C
1-3months:
-20~35°C
3-12months:
20~25°C
1.1 Product standard configuration
Items
Quantity
Specifications
Pictures
E-BOX SERIES
1pcs
LFP pack; including BMS,
three interfaces (CAN/RS-
485/RS232), 2 Link ports,
LED power indicator and
insulated coating metal
case.
(Only for your
reference)
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

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1.2 BMS function
Protection and Alarm
Management and Monitor
Charge/Discharge End
Cell Balance
Charge over Voltage
Intelligent Charge Model
Charge/Discharge Over Current
Charge/Discharge current Limit
High/Low Temperature
Capacity Retention Calculate
Short Circuit
Administrator Monitor
Power Cable Reverse
Operation Recode
2 Interface and protection functions
2.1 Battery front panel schematic
2.2 Components
No.
Name
Label
Functions description
1
Ground
Grounding
2
Power button
POWER
Power button. When switched to "ON",
the system can be activated by the
"SW" key or external power supply;

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when switched to "OFF", the system is
off.
3
Soft start switches
SW
Press and hold this button for 1
second while the switch key is "ON"
to enter Start or Sleep mode
4
DIP switch
ADD
Select the match manufacturer, see
the match list(appendix A)
5
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.
Capacity indicator
CHARGE
A total of 6 green lights showing
battery capacity, each representing
16.7% of SOC.
6
External CAN
communication port
CAN
Communication with external devices
7
External RS-485
communication port
RS485
Communication with external devices
8
Cascade terminal
Link Port
The master is connected to PORT1,
and the slave is connected to
PORT0.
9
Input and output
interface (negative)
“-“
Negative input and output interface
10
Input and output
interface (positive)
“+“
Positive input and output interface
Warning: 6,7,8,9,10 is DVC-A circuit, they shall not be connected to DVC-B/C
circuit when installed, or hazard shock will occur.

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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.
Installed in cabinet which shall not be opened without a tool or
install in a restricted access area.
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.

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The self-discharge of the LFP battery is 1-2% per month. Keep the
battery SOC to 40%-60% during storage.
Disconnect the LFP battery from all loads and, if present, the charging
device.
Store the battery in a cool and dry place without direct sunshine.
Keep the battery away from corrosive substances, inflammable and
explosive material as well as hazardous gases.
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.
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 the 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 3, “Operating Environment”. Otherwise, it needs to
be adjusted and re-examined.

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5.1.3 Tools
The tools that may be used are shown in Table 5-1.
Table 5-1 Tools
Tools
Screwdriver (Slotted, Phillips)
Multimeter
Wrench
clip-on ammeter
Diagonal pliers
Insulating tape
Thermometer
Pliers
Anti-static wrist ring
Clip Pliers
Tapes
Strippers
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 1-1
Battery Pack Specifications.
Whether the power of the electrical equipment matches the
parameters listed in “Table 1-1 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

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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 DLG or your reseller.
5.3 The preparatory work
1. Make sure the POWER buttons of all batteries are OFF.
2. Ensure the charging voltage of power supply equipment is DC57.5
±0.1V;
3. All power supply should be off.
5.4 Installation
5.4.1 Install the battery
The E-BOX SERIES can be installed either vertically or horizontally.
In this chapter, it’s mainly instructions for horizontal installation such as:
installation in a 19-inch cabinet. Vertical installation is similar. All
equipment must be placed steadily during installation.
5.4.2 Connect Ground cable
Unscrew the screw at the grounding hole on the front panel of the
battery, wrap the ground cable around the screw, and tighten it with a
screwdriver. Connect the other end of the ground cable to a reliable
ground point.
External Bi-polar over current protection devices and Bi-polar external
isolator shall be equipped
The minimum diameter must be >10awg
Note: The grounding resistance should be less than 0.1Ω.
5.4.3 Connecting the power cable
Before connecting the power cable, connect and disconnect the
cable to identify the positive and negative terminal, then make a mark

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respectively. After the cable is connected, measure whether there is a
short-circuit or reverse connection.
Select the correct line based on your load by referencing to the table
below
AWG
Area
Standard Current
Max. current
(kcmil)
(mm²)
（A）
（A）
5
33.1
16.8
66.2
75.5
6
26.3
13.3
52.5
59.9
7
20.8
10.5
41.6
47.5
8
16.5
8.37
33
37.7
9
13.1
6.63
26.2
29.8
10
10.4
5.26
20.8
23.7
It should be >10 AWG.
Connecting the power cables:
(1) Power cable connection instructions of Single-Rack:
Single battery:
Connect the positive and negative poles of the battery to the positive
and negative terminal of the DC port of the energy storage inverter
(or the junction box) with a red and black cable respectively.
Multiple batteries (Max number 6):
The connection between batteries, as well as between the battery
and ESS inverter are in parallel. First, connect the two positive
terminals of adjacent batteries with the red cable; and the two
negative terminals of adjacent batteries with the black cable; then

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connect the positive and negative pole of the battery with the positive
terminal of the DC port of the energy storage inverter (or the junction
box) with a red and black cable respectively;
The standard battery current is the same no matter how much battery
is paralleled refer to the “Table 1-1”.
Warning: Batteries connected in series are forbidden, high voltage would lead
to hazard shock.
2. Power cable connection instructions of multi-Rack:
Collect the positive and negative power cables respectively by the
bus bar or junction box, then connect two racks in parallel.
The length, thickness, material, and resistance of the cables
connected in parallel must be the same.
Note: When the cable is inserted into the positive and negative
terminals of the battery and “Click”, the cable is firmly connected.
Before pulling out the cable, press the small button next to the
terminal. When multiple batteries are connected in parallel, in order
to reduce the influence of the circular current, the overall positive and
negative output cables can be connected from different batteries.

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Figure 5-1 Schematic diagram
of battery connection
5.4.4 Connecting communication cables
Single battery: Choose port to be inserted according to the
communication protocol (RS485/CAN/RS232) between the battery and
ESS inverter, then insert the communication cables to the port;
Multiple batteries: The host and the slave communicate in cascade
mode: one is the host and the rest are the slaves. Please refer to the
following picture for the cascade connection. User need to inset
communication cables to relevant link ports between batteries and be
aware that:
Note: The battery must be placed in
a locked cabinet or room, and a 5cm
cooling gap is reserved when
installing the battery, and the battery
cabinet should have a load capacity
of more than 100kg

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1. The host Link Port 0 must be kept free;
2. The end slave Link Port 1 must be kept free;
Note: The system may not be able to communicate if not
follow the instruction.
Table 5-3 LED indications
Battery
status
Protection
/ Alarm /
Normal
RUN
ALM
Capacity LED
Descriptions
●
●
●
●
●
●
●
●
Shut down
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
All off
Power-on
Normal
ON
ON
ON
ON
ON
ON
ON
ON
All light on one second at
same time.
Standby
Normal
Flash 1
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Indication standby
Alarm
OFF
Flash 3
OFF
OFF
OFF
OFF
OFF
OFF
Battery low voltage
Charging
Normal
Light
OFF
Base on capacity
Alarm
Light
Flash 3
Protection
OFF
Light
OFF
OFF
OFF
OFF
OFF
OFF
Stop charging, protect start
Discharge
Normal
Flash 3
Flash 3
Base on capacity
Alarm
Flash 3
Flash 3
Protection
OFF
Light
OFF
OFF
OFF
OFF
OFF
OFF
Stop discharge, protect start
Note: The flashing instructions, flash 1-0.25s light/3.75s off; flash 2-0.5s
light/0.5s off; flash 3-0.5s light/1.5s off.
---End of installation---

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6 Communication
There are RS-232C, RS485and CAN communication ports on the
battery. The battery status can be obtained and the battery internal
parameters can be modified via a host computer.
CAN
CAN communication Terminal (RJ45 port) follow CAN protocol, to
output batteries information.
RS485
RS485 Communication Terminal:(RJ45 port) follow RS485 protocol, to
output batteries information.
RS232
RS232 Communication Terminal:(RJ45 port) follow RS232 protocol, to
upgrade the software and communicate with your PC.
Link Port 0,1
Link Port0,1 Communication Terminal:(RJ45 port) follow CAN/RS485
protocol, to communicate between multiple parallel batteries.

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6.1 RS232 port
Default baud rate of RS-232C ports: 115200bps.
Table 6-1 RS232 Connector Pin Assignments
Pin number
RS-232C port
1
GND
2
TXD
3
RXD
4
GND
6.2 RS485 port and CAN port.
Default baud rate of RS-485 port: 115200bps
Default baud rate of CAN port: 500K
Table 6-2 RS485 and CAN Connector Pin Assignments
Pin number
Serial
CAN
1
RS485B
--
2
GND
3
RS485A
CANH
4
--
CANL
5
--
6
GND
--
7
--
8
--

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7 Troubleshooting
Please refer to the troubleshooting methods mentioned below.
Please read the “Table 5 -3 LED indication” of this manual before
troubleshooting to prevent false operations. For example, it doesn’t
indicate the battery is faulty if the ALM alarm red light on the front panel
is blinking or constantly on. When there is an "alarm" indication, it usually
works well and needs no troubleshooting. When there is "protection"
indication, the battery will work normally automatically after “protection”
status is released.
Warning: Do not repair the battery if no authorization from DLG!
7.1 Unable to start
Problem
Troubleshooting Steps
Solution
Press the POWER button to
the "ON" state and press the
SW button for 1 second, but
the LED indicator doesn’t
respond or all the LEDs are
off after 1S.
1. Confirm that the POWER
button remains in the "ON"
state;
2. Charge the battery correctly
and observe if the battery can
be charged properly.
1. If the battery enters
charging mode, the
battery can return to
normal after charging.
2. If not, please contact
the local reseller or
DLG.
7.2 Unable to charge
Problem
Troubleshooting Steps
Solution
The battery
cannot be
1. Confirm that the battery is turned on;
2. Check the power cord. Confirm that the
If the battery still does
not charge properly