Automatic Protection Board Lithium Battery Pack BMS Testing System

Lithium Battery Protection Board Tester BMS Tester

Description:

It is mainly used for the safety test of lithium battery protection board and is compatible with various common protection board types, such as positive pole with the same port (split port), negative pole with the same port (split port), positive charge and negative electrode discharge and so on. Lithium battery protection board tester is beneficial to improve production efficiency and control quality.

Mainly have the following functions:

1. Accurate test: It can accurately detect the exact value of various functional parameters of the power battery protection board (error is 1mv), which is convenient for sample debugging and development.
2. Quick test: According to the design parameters of the protection board, set the test parameters to perform a quick test, which is suitable for the protection board test of various hardware solutions and some software solutions.
3. Laboratory mode: Set the single string voltage independently, select the charging or discharging mode, and judge whether the MOS tube is turned off or turned on.

Test items:

1. internal resistance test,
2. Overcharge and over-discharge test,
3. Overcharge recovery over discharge recovery test
4. Over current test (charge over current and discharge over current)

5. Short circuit protection test (short circuit protection test microsecond level).

6. Single-section self-consumption test (true and accurate self-consumption of each section).
Balance current and balance voltage (can accurately capture balance current and balance turn-on voltage).

Types of protection boards that support the test: lithium iron phosphate, lithium cobalt oxide, lithium manganate, lithium titanate, etc.

Technical parameters:
3.1 High current module: The current level is 120A, and the current accuracy is 0.1A.
3.2 Voltage module: The voltage range is 0.5-5V, the programmable output is 0.5-5V, and the voltage accuracy is 1mV.

3.3 Short-circuit module: The capacitor, fully simulates the voltage of the pack battery, short-circuits the Protection Board Tester in an instant, and accurately captures the short-circuit time and current. Infrared scanning (barcode scanning) Scan the ID number of each protection board (reserved optional)

Basic Parameter:

Protection Board Tester BMS Testing Machine

• Real-time monitoring:

  The Protection Board Tester enables real-time monitoring of battery parameters during the testing process. It allows users to track voltage, current, and temperature fluctuations, ensuring accurate and reliable data analysis.

• Compatibility and versatility:

  The Protection Board Tester is compatible with various types of lithium batteries and supports multiple cell configurations. It can be used for testing battery protection boards in a wide range of applications.

Battery Pack BMS Test Systems

• Efficient data management:

  The battery pack BMS Test Systems Protection Board Tester provides data storage and reporting functions, allowing users to save and analyze test results for future reference. The Protection Board Tester facilitates easy comparison and evaluation of different battery protection boards.

• Cost-saving and time-efficient:

  By providing a comprehensive and efficient testing solution, the Protection Board Tester helps to save costs and time associated with manual testing and troubleshooting. Battery Pack BMS Test Systems ensures the reliability and safety of lithium battery systems.

Q1. How does a BMS measure current?

A Battery Management System (BMS) Battery Pack BMS Test System measures current by utilizing a current sensor or a shunt resistor in the battery circuit.

In a typical BMS setup, a current sensor is connected in series with the battery pack. The current sensor detects and measures the flow of current passing through it. It generates an analog voltage signal proportional to the current magnitude, which is then processed by the BMS Protection Board Tester.

The BMS may have an analog-to-digital converter (ADC) to convert the analog voltage signal into a digital value. This digital value represents the current flowing through the battery pack. The BMS can then use this information for various purposes, such as monitoring the charging and discharging currents, calculating the state of charge, detecting abnormalities, and controlling the battery system.

Alternatively, a shunt resistor can be used in the battery circuit to measure the current. The voltage drop across the shunt resistor is directly proportional to the current passing through it. The BMS measures the voltage across the shunt resistor and converts it into a current reading using Ohm's law.

Overall, the BMS measures the battery current by either utilizing a current sensor or measuring the voltage across a shunt resistor in the battery circuit.

Q2. How do I match my BMS to my battery?

Matching a BMS (Battery Management System) to a battery involves selecting a BMS that is compatible with the battery's voltage, capacity, chemistry, and specific requirements. 

Here are some general steps to help you match your BMS to your battery:

    Determine the battery specifications: Identify the voltage and capacity of your battery. Make sure to also consider the battery chemistry (e.g., lithium-ion, lead-acid) as different chemistries may have specific BMS requirements.

    Research BMS options: Look for BMS models that are designed for batteries with similar voltage, capacity, and chemistry as yours. Consider factors such as the number of cells supported, communication protocols (e.g., CAN bus), and additional features you may require (e.g., overcharge protection, temperature monitoring).

    Compare BMS specifications: Review the technical specifications and features of the BMS options you are considering. Check if the BMS can handle the voltage range and capacity of your battery. Ensure that the BMS has the necessary protection functions, such as overcurrent, overvoltage, undervoltage, and temperature monitoring.

    Check wiring and communication compatibility: Ensure that the BMS wiring connections and communication protocols are compatible with your battery. Verify the wiring connections for cell balancing, current sensing, and temperature monitoring.

    Consult manufacturer guidelines: Refer to the manufacturer's guidelines and documentation for both the BMS and battery to ensure proper compatibility. They may provide specific recommendations or requirements for matching the BMS to your battery.

    Seek expert advice if needed: If you are uncertain or have specific requirements, it can be helpful to consult with battery or BMS manufacturers, distributors, or technical experts for guidance and recommendations.

Remember to follow the manufacturer's instructions and guidelines when installing and configuring the BMS with your battery. Proper matching and integration of the BMS will help ensure the safe and reliable operation of your battery system.