Stealth SP-HE4850 User manual

Home Energy Storage System
Product Manual
SP-HE4850
V3.0

Contents
1. Introduction .................................................................................................................................1
1.1 Description........................................................................................................................1
1.2 Functions...........................................................................................................................1
1.3 Misuse ...............................................................................................................................1
1.4 Specification .....................................................................................................................2
1.5 Product instruction...........................................................................................................3
2. Safety Requirements.................................................................................................................5
2.1 Responsibilities of the installer ......................................................................................5
2.2 Requirements for the installation environmental.........................................................6
3. Tool list.........................................................................................................................................6
4. Installation steps ........................................................................................................................6
4.1 Check the package..........................................................................................................6
4.2 Battery module matching................................................................................................7
4.3 Unpacking steps ..............................................................................................................7
4.4 Check the battery modules status.................................................................................8
4.5 Battery modules stacking and fixing .............................................................................8
4.6 Installation of fixing pieces .............................................................................................9
4.7 Battery system wiring ....................................................................................................10
5. Battery system operation ........................................................................................................14
5.1 Check before operation ................................................................................................14
5.2 Dial switch address setting...........................................................................................14
5.3 Supply power and start .................................................................................................14
5.4 Power off .........................................................................................................................15
5.5 Sleep mode.....................................................................................................................15
6. Cables arrangement................................................................................................................15
7. Troubleshooting Steps ............................................................................................................17
8. Battery Maintenance................................................................................................................18
9. Emergency Situations .............................................................................................................18

1
1. Introduction
Dear customer,
Thank you very much for purchasing our products. We sincerely believe that our product can meet
your needs. We value your feedback on the product performance, appearance and function and
we strive to continually improve our product.
1.1 Description
In order to meet the expansion demand of residential energy storage system, our company has
launched a variety of solutions: (2.4kWh basic system) * N.Usually we use 4 battery modules in
parallel,If the customer wants to continue to expand the capacity, please consult the
manufacturer.
1.2 Functions
1.Battery management system (BMS) has protection functions including short circuit, over
discharge, over charge, over current, over temperature and under temperature.
2.Flexible configuration: Multiple battery modules can be in parallel for capacity expansion.
1.3 Misuse
Any operation of the residential energy storage system which beyond the description of correct
operation may be considered as improper use.
The device shall not be operated:
1.In rooms that contains flammable materials, fire, or in explosive atmospheres.
2. Areas with ambient temperature below 0 ℃or above + 40 ℃.
3. The cable is defective.
4. The spare parts are obviously defective or damaged.

2
1.4 Specification
Electrical Characteristics
No. Item General Parameter
1 Voltage Range 42V-54V
2 Nominal Voltage 48V
3 Battery Capacity 50Ah
4 Energy Capacity 2.4kWh
5 Max. Charge/Discharge Current 50A
6 Communication Interface RS485/CAN
Operating Conditions
No. Item General Parameter
1 Installation Location Indoor
2 Operation Temperature Charging:0~55℃
Discharging:-20~55℃
3 Operation Temperature
(Recommended) 15~30℃
4 Storage Temperature -20~45℃(1 month)
5 Altitude MAX.2000m
6 Cooling Strategy Natural Convection

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Certification
No. Item General Parameter
1 Transportation UN38.3
2 Safety IEC62619/IEC60950/CE
Mechanical Characteristics
No. Item General Parameter
1 Dimensions (W)210mm*(H)250mm*(L)605mm
2 Weight ＜33Kg
1.5 Product instruction
ON/OFF
Start button: to turn ON/OFF the battery.
Run
Run light: Green
Alarm
Alarm light: Red
SOC
SOC light: Orange
Charging mode: Last orange led flash.
Discharging mode: First orange led flash.
RUN ALRM 0% 20%40%60%80%100%
ON/OFF

4
ADD
Battery module address:It is used to set the master and slave of the battery module.
RS485
R485: For communication between battery system and inverter.
CAN1&CAN2
CAN1&CAN2: For communication between battery modules.
Power terminals (+) & Power terminals (-)
The total current shall not exceed the maximum value of 100A carried by the connector.
Power terminals: It is used for paralleling between battery modules and connecting the input
terminals of inverter.
Definition of ADD
When the stack of battery modules is completed, confirm that the top battery module is the master.
A battery energy storage system has only one master and several slaves.
Digital representation of dial switch: ON represents 1, OFF represents 0.
The first digit is to identify the master and slave. 1 represents the host and 0 represents the slave.
The three digits on the back of the master represent the total number of battery modules.
The three digits behind the slave represent the slave number.
As shown in the figure, the first digit of dial switch is 1, it means that the battery module is the host,
the last three digits are 101, it means that the total number of battery modules is 5.
ADD
RS485
CAN1
CAN2
-+
BREAKER
1 2 3 4
1 2 3 4

5
Definition of RJ45
Pin RS485 CAN1 CAN2
1
2
3
485_A
CAN1_L
CAN2_L
4
5
6
485_B
CAN1_H
CAN2_H
7 GND
8
LED Status Indicators
Alarm Level 1 Level 2 Level 3 Level 4
Action
Power
limitation
Inform inverter
to shut down MOSFET off Breaker off
LED Normal Normal LED OFF LED OFF
2. Safety Requirements
2.1 Responsibilities of the installer
The installer must ensure that:
1. Before installation, the installer should read and understand this manual.
2. The protective equipment shall be complete during installation
3. The unclear warning label on the battery module should be replaced immediately
4. Make sure there are no inflammables near the battery module
5. Before installation and operation, be aware of any potential hazards and conduct necessary
risk management on site.
6. Do not change any components of the battery system without the approval of the manufacturer.
7. The battery system is damaged due to unauthorized modification of components, and the
warranty is invalid.
When handling battery module, pay attention to the following aspects:
1. Remove the watch, ring and other metal products;
2. Use tools with insulated handle;
3. Wear rubber gloves and labor protection shoes;
4. Do not put tools or metal parts on the battery;
5. Do not touch the battery module with wet hands.
6. Do not crush, drop or puncture the battery.
12 3 4 5 7 8
6

6
7. Always handle battery module in accordance with local safety regulations.
8. Do not transport battery modules without packaging.
2.2 Requirements for the installation environmental
The installer shall ensure that the installation position meets the following conditions:
1. The installation position must be kept dry.
2. The ground bearing capacity should be greater than the whole battery system.
3. Clean up the sundries near the installation position.
4. Keep away from highly inflammable and explosive materials during installation.
5. Keep ventilation.
6. The battery system is best installed in a place that do not affect users.
3. Tool list
NO. Tool name Tool type
1 Electric drill and drill bit 5mm
2 Hammer
3 Screw driver
4 wrench 8mm
5 Multi-meter
6 Scissors
7 Insulating Tape
8 Insulating gloves
9 Goggles
10 Safety shoes
4. Installation steps
4.1 Check the package
The battery system has been carefully inspected and packed before dispatch. But it is still
possibly be damaged during transportation.
1.If the external package has been damaged, it is possible the device or the internal components
have also be damaged during the transportation.

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2.Make a record and check the packing list carefully after removing the external package.
3.If the component is lost or damaged, the customer has the right to reject or ask the service
provider for replacement.
Parts list
NO. Name Quantity Figure
1 Parallel cable (+) 1
2 Parallel cable (-) 1
3
Internal
communication
cable
1
4 Screw
(M5*12) 4
5 Fixing piece 2
6
Supporting
column
(H:10mm)
2
7 Expansion bolts
(5*40) 2
4.2 Battery module matching
There are labels on the carton and the battery box, which are ①and ②respectively. When
installing the battery system, only ①and ①can be combined, and ①and ②cannot be
mixed.
4.3 Unpacking steps
①Open the carton and take out the sponge.
②Take out the side cover.
There is a latch inside the side cover. Open it as the picture.

8
③Grab the handles on both sides and take out the battery module.
4.4 Check the battery modules status
Before installing the battery system, we need to check the current status of the battery module.
Preliminary inspection
1. Before starting a single battery module, the dial switch should be set to 1001.
2. Open the breaker.
3. Press the start button until the green led is on.
4. Observe the LED indicator. After starting, the green light will be on for one second and then
off.
5. When the green light is off, the battery will enter the self-checking mode, and the battery will
be started when the battery parameters are normal.
6. If the battery parameters are abnormal, BMS will disconnect the breaker.
7. If the battery module does not start normally, please contact the distributor to replace it.
4.5 Battery modules stacking and fixing
The capacity expansion is realized by stacking the battery modules. As shown in the figure,
usually we stack 4 modules. If you want more modules to stack, please consult the manufacturer.
NOTE: The metal base under the battery modules is optional.
Handle
1 2 3 4

9
4.6 Installation of fixing pieces
①Installation of fixing pieces on the rear side of the box.
As shown in the figure, we installed 8 fixing pieces and 14 screws.
Fixing piece

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②Install the fixing pieces on the wall.Please refer to the table below for drilling position.
③Drilling position of the expansion bolts.
module number
A
（
mm
）
B
（
mm
）
with metal base
B
（
mm
），
without metal base
1
552±2
315±2
270±2
2
560±2
515±2
3 805±2 760±2
4 1050±2 1005±2
5 If you want more modules to stack, please consult the manufacturer.
6
4.7 Battery system wiring
Before wiring, the breaker must be disconnected.Avoid personal injury and equipment damage
caused by wrong wiring. Here are the wiring instructions：
①External communication cable should be connected to the inverter. We use RS485 to connect
the inverter.
②Internal communication cables should be connected from CAN2 to CAN1.
③Power cable（-）&⑥Power cable（+）should be connected to the inverter.
④Parallel cable（-）& ⑤Parallel cable（+）should be connected between battery modules.
Supporting
column
Expansion
bolts
Wall
A
B

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Wiring of 1 module and 2 modules
①③
⑥
①③
⑥
④
②
⑤

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Wiring of 3 module and 4 modules
①③
⑥
④
②
⑤
②
④⑤
①③
⑥
④
②
⑤
②
④⑤
②
④⑤

13
Wiring of 5 module and 6 modules
①③
⑥
④
②
⑤
②
④⑤
②
④⑤
②
④⑤
①③
⑥
④
②
⑤
②
④⑤
②
④⑤
②
④⑤
②
④⑤

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5. Battery system operation
5.1 Check before operation
Before startup the system, the installer needs to disconnect the breaker and carry out the
following inspection:
1.Double check and make sure the connection is correct according to the manual instruction.
2.Ensure that battery system is fixed tightly
5.2 Dial switch address setting
The address of the dial switch must be set before the breaker is opened. If you want more than 4
modules to stack, please consult the manufacturer.
Battery
module
number
Master module ADD Slave module ADD
1
2
3
4
5.3 Supply power and start
1.Turn on the breakers of all battery modules.
2.Press the start button of the master module and release the button when the green LED is on.
3. After one second the green led will be off, the main module starts self-checking.
4. After self-checking, the green led and orange led will be on, it means that the master module is
running.
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4 1 2 3 4
1 2 3 4
1 2 3 4 1 2 3 4 1 2 3 4

15
5. After the master module started, the master module will inform the slave modules to start.
5.4 Power off
1.Press the start button of the first battery module until the led turn off, then release the button, the
other three battery modules will turn off one by one.
2.At this point, the battery modules only disconnect the external output.
3. The BMS inside the battery modules work normally, and waiting for the next start.
4. After power off, you need to wait 20 seconds before starting again.
5.5 Sleep mode
The battery system needs to enter sleep mode
The first way:
1.Power off the master module by button.
2.Do not turn off the breakers manually. If the breakers are closed manually, the BMS will not
enter sleep mode.
3.Do not press the master module button in five minutes.
4.When the time is up, BMS will control the breaker to close and the BMS will enter sleep mode.
The second way:
1. Turn off the breakers of all battery modules.
2. Set the master module dial switch to 1000.
3. Turn on the breakers of all battery modules.
4. Press the master module button.
5. Wait for 30s after startup.
The battery module needs to enter sleep mode
1. Turn off the breaker of the battery module.
2. Set the dial switch to 1000.
3. Turn on the breaker.
4. Press the battery module button.
5. Wait for 30s after startup.
6. Cables arrangement
The side cover is used to protect the cables and prevent human mistake operation.
NOTE: The side covers must be installed after trial operation. Avoid unnecessary trouble caused
by repeated disassembly.
1 2 3 4

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①Side cover diagram
②Insert the inserting piece obliquely into the slot，then close the side cover follow the direction
of arrow.
③Before closing the side cover, the cables should be arranged and passed through the holes in
the side cover.
④Tighten the side cover screws.
Insert the screwdriver into the round hole in the side cover and tighten the screw.
S c rew
Wiring hole
Locking tab
Slot
Latching lock
Inserting piece

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7. Troubleshooting Steps
Problem
Possible Reason
Solution
Single battery module:
no output, no led on,
breaker off.
1.Press start button too short.
Press at least longer than
2 seconds.
2.BMS power supply failure. Replace BMS.
3.Battery module self-checking
data abnormal. Replace battery module.
4.Dial switch address error. Check the specific address
of a single module.
5.External load short circuit.
Disconnect the load and
restart.
6.The start button was not pressed
within 5 minutes. Restart.
Battery system: no
output, no led on,
breaker off.
1.Dial switch address error.
Check the addresses on
the master and slave
modules
2.
Wrong connection of internal
communication cables.
Check the position of the
internal communication
cables on the network port.
3.External load short circuit.
Disconnect the load and
restart.
4.Master battery module BMS
fault. Replace battery module.
scew
scew
scew
scew

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8. Battery Maintenance
1. When it is not used for a long time, discharge the battery to 45% ~ 60% of the battery capacity
to avoid battery exhaustion;
2. When it is not used for a long time, the battery module can be put into sleep mode.
3. When it is not used for a long time, the battery module should be charged every six months to
ensure the normal operation of the battery.
4. Battery maintenance must be carried out by professionals or under their guidance;
5. When replacing the battery, the same type of battery module should be used;
9. Emergency Situations
1.Electrolyte leakage
If the battery module leaks electrolyte, avoid contact with the leaking liquid or gas. If one is
exposed to the leaked substance, immediately perform the actions described below.
①Inhalation
Evacuate the contaminated area, and seek medical attention.
②Contact with eyes
Rinse eyes with flowing water for 15 minutes, and seek medical attention.
③skin
Wash the affected area thoroughly with soap and water, and seek medical attention.
2.Battery module on fire
NO WATERING TO PUT OUT THE FIRE!
Only dry powder fire extinguisher can be used, if possible, move the battery module to a safe area
before it catches fire.
3.Immersion of battery module
If the battery module is wet or submerged in water, do not let people access it, and then contact
distributor for technical support.
4.Damaged Battery module
Damaged battery module is dangerous, it must be handled with the utmost care. It is not fit for use
and may pose a danger to people or property. If the battery module seems to be damaged, then
return it to distributor.