Semco SI BCDS 75V 40A 4CH/60V 20A 8CH/100V 100A 2CH/100V 60A 2CH – N

Semco SI BCDS 75V 40A 4CH/60V 20A 8CH/100V 100A 2CH/100V 60A 2CH – N

1.   Equipment characteristics 

  • Energy Feedback Energy-Saving Type, There is energy saving during the test (80%), the effect of discharge feedback (75%), heat is small, so as to achieve the purpose of energy saving and cost reduction for users;
  • Constant Current to Constant Voltage Charging Safely and Smoothly, The voltage and current of the device are connected in a four-wire system, and the voltage and current loops are independently designed to ensure a safe and smooth transition during the constant current to constant voltage charging process to avoid damage to the battery due to spikes;
  • High Precision Calibration Method, The charging current, discharging current, charging voltage and discharging voltage are all calibrated with high precision by Agilent to ensure that the accuracy of current and voltage is within 5‰;
  • Excellent Heat Dissipation Performance, Unique air duct design, through forced air cooling to reduce the impact of high temperature on equipment Adopt dual-fan mode, perform forced air cooling on the power cooling module, and use thermal imager for thermal simulation test to ensure that the radiator works within a reasonable temperature range;
  • The Channel is Detachable, Various channels in the same box can be freely connected in parallel according to needs to be compatible with multiple types of battery tests, give full play to the multiple functions of the equipment, and save equipment costs for customers;
  • The Built-in Temperature of The Device, Each channel can be customized according to needs, with one main temperature without external auxiliary temperature (with multiple channels, the temperature needs external auxiliary temperature), Monitor the battery temperature in real time, so as to monitor and protect the normal safety test of the battery according to the temperature change;
  • Single Box Power Supply, Each cabinet of the whole cabinet is powered independently to ensure the stability and safety of the power supply of the whole cabinet;
  • Power independent, To ensure that the output of the circuit is uniform during the working process of the power supply, and there is no protection problem;
  • The Clamp is Flexible and Adjustable, It can be compatible with a variety of sizes of batteries, truly a multi-purpose one, and maximize the use

2.   Equipment key components



Product Producer’s name Origin Function description
01 Feedback power Guodian Seth /


China AC-DC or DA-AC
02 fan Built


Taiwan/Japan Air-cooled heat rejection








Protect the safety of batteries and equipment under abnormal




Current and voltage

acquisition, PID control

05 Relay OMRON Japan (or China) Switch charging and

discharging circuit

06 MOS tube IR MEXICO Power switch tube
07 Two triode IXYS MALASYIA Rectification/freewheeling
08 Resistor-capacitor YAGEO China High-precision current and

voltage sampling

09 Sampling resistor Isabellenhütte Germany High-precision current


10 Current amplifier TI China (package) High-precision current


11 Voltage amplifier TI America High-precision voltage


12 Analog-to-digital converter Lint America High-precision collection of current, voltage,

temperature, etc.

13 Digital-to-analog


ADI America Setting of high-precision

analog quantity

14 Master chip ARM series


America Master chip

1.Introduction to equipment scope and functions 

  • Scope of equipment application: mainly used in battery production or experiments including lithium-ion batteries, lead-acid batteries, cadmium-nickel batteries, nickel-hydrogen batteries, etc. Life aging test (Circle Life Testing)And quality
  • Supported test content: Battery cycle life test, battery capacity test, battery charge characteristic test, battery discharge characteristic test, battery charge retention test, battery charge and discharge efficiency test, battery overcharge, over discharge rate endurance test

2. Equipment environmental requirements and technical parameters 

  • SinglePower supply: AC voltage twenty two0V ±10%, frequency: 50 Hz ±5%, Whole cabinet power supply: AC voltage380V ±10%, frequency: 50 Hz ±5%
  • Ambient temperature: 0 ∽ 45℃
  • Ambient humidity: no more than 85%RH (no moisture condensation)
  • There is no strong vibration in the environment, No corrosive gas and flammable and explosive gas exist
  • Resolution: AD: 16bit
Device model SI75V40A 4 channels/set, the whole rack has 24 channels
communication method TCP/IP (network port)
Channel control mode Single point independent control
Charging energy saving efficiency 80%
Charging voltage 0~75V
Port discharge voltage 7.5~75V
recharging current 0.02A~40A
Discharge feedback efficiency 75%
Discharge current 0.2A~40A
Voltage accuracy ±(0.05%RD + 0.05%FS)
Current accuracy ±(0.1%RD + 0.05%FS)
Main temperature According to the specific equipment, it can be customized and equipped with 1 channel per channel
Voltage resolution 1mV
Current resolution 1mA
Temperature resolution 0.1℃
Input power AC 220V±10%/50Hz (Power supply mode of the cabinet: three-phase five-wire)
sampling time Single box sampling frequency 10mS
Record time 100mS~65535S
Charging mode Constant current limit voltage, constant current constant voltage,
Charging cut-off condition Voltage, current, time, capacity, temperature
Discharge mode Constant current discharge, constant power discharge, constant current
Discharge cut-off condition Voltage, current, time, capacity, temperature
Number of steps in a single cycle 100 steps, with nested loop function (10 levels)
Circuit configuration Modular structure design, easy to replace and repair

Software and hardware protection

Reverse connection protection, over voltage protection, over current protection, over temperature protection, under voltage protection, short circuit protection























Main functions of the system




1.  The software supports various connections, such as manual suspension and connection, software shutdown and connection, power interruption and connection, device communication interruption and abnormal stop and connection;


2.  It supports barcode scanning, which can scan one-dimensional codes and two-dimensional codes, including sequential scanning, channel skipping scanning, and loading scanning methods;


3.  Local test detailed data storage, you can view the current test data and historical data of each channel at any time, there are two ways to correspond to the data and the curve, and it supports single or batch export EXCE report, in addition, you can set up automatic data export at the end of the test according to your needs.


4.  Supports capacity sorting, which can sort the batteries and LED lights;


5.  Support the pass judgment at the end of the test, and judge the Pass/NG result according to the specified cycle capacity, voltage, time and other information;


6.  Support various process protections and global voltage, current, and temperature abnormal protection, and carry out abnormal alarms, and support battery pack overcharge and over discharge protection tests;


7.  Support unit conversion;


8.  Support database server background MES storage or other MES docking;


9.  Software and hardware offline protection;


10.  Support channel parallel function;


11.  Real-time screening of voltage collection, check the battery for poor crimping before the test, and transform into voltage screening before the test.


12.  BMS communication protocol docking, monitoring battery charging and discharging process processing through BMS data items.










System protection

Global protection parameters (including battery reverse connection protection, voltage lower limit protection, voltage upper limit protection, current upper limit protection, over temperature protection), CC charging protection parameters (voltage trend abnormal protection, charging current fluctuation abnormal protection, voltage fluctuation abnormal protection, charging voltage Time setting, charging voltage rising speed abnormal protection), CV charging protection parameters (including current trend abnormal protection, charging current fluctuation abnormal protection, voltage fluctuation abnormal protection), CC discharge protection parameters (including voltage trend abnormal protection, discharge current fluctuation abnormal protection , Voltage fluctuation abnormal protection, discharge voltage drop speed abnormal protection), Idle protection parameters (including voltage abnormal jump protection) five items, when each protection reaches the user set parameters, the device will automatically stop the channel operation, and issue an alarm, and will This incident is recorded for easy tracking.


Data monitor Check

Tie During system operation, the main window of the software will display the current current, voltage, charge and discharge capacity of each channel in real time, the running process and the name of the current running process. Software can also through the window view current operating data or historical data at any time, and can be exported manually or automatically in EXCEL format.


Communication method

The interface between the equipment and the middle computer adopts the CAN interface, and the communication between the middle machine and the upper computer adopts the LAN network, which can ensure the stability and real-time performance of long-distance data collection. All communication ports of the equipment are isolated and have lightning protection design.
Software system Provide free software upgrades for life
Voltage and current detection sampling terminal Special four-wire connection
Security Level Meet the requirements of EN60950, GB4943


Follow the method of IEC62040-3 to test the noise. The sound level meter used for noise less than 70dBA should meet the requirements of Type I in IEC804, and the accuracy should be better than ±0.5dB.
Protection level IP20
Chassis color Ice gray
Lightning protection Meet the 2-pole lightning protection requirement of GB17626
Cool down Pump out

6.Physical map of equipment:

Single cabinet feedback equipment diagram (length*width*height: 750*650*210mm)

Whole cabinet equipment drawing (size: 940*790*1800mm)

Charged optional universal battery rack size chart (external dimensions: length * width * height = 1650*500*1488mm)

7.  Parts list

Serial Number  



Product Name

Product Number  







Test Equipment

Charge and discharge test equipment  





4CH/unit, 1

frame 6 units










Charge and discharge equipment cabinet









The default comes with a 4 meter power input cable



















Charge and discharge test line






Four-wire system








The default is a set of test leads for each channel, with a length of 2 meters (length can be customized).
4 Accessories Alligator clip 100A 4 sets





Battery rack




1 set


Paid option
















I5 8G 500G




1 set

Including mouse, keyboard, monitor (paid option)










Compliant with on-site online use







Communication accessories

Communicati on line/crystal first class  




Compliant with on-site online use







Excellent Kinetic Energy Battery Testing System Software  


1 set


After-sales installation provided






Software manual and video tutorial


1 set

After-sales installation provided


Accompanying documents  





1 set

Delivery note etc.
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