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  • Writer's pictureSemco Infratech

Prismatic Testers: Battery Excellence Gateway

Prismatic Testers: Battery Excellence Gateway

Testers for prismatic cells are a vital tool for battery pack assemblers and manufacturers. They are employed in the characterization and performance assessment of individual cells during the manufacturing of lithium-ion battery packs. This information makes it possible to choose cells with comparable properties, enhancing the battery pack's overall performance and security.

Prismatic Cell Testers

An instrument used to gauge the electrical performance of prismatic battery cells is called a prismatic cell tester. Numerous parameters, such as voltage, current, capacity, and internal resistance, can be measured by it. The data collected by the tester can be used to create a battery cell profile, which is a unique fingerprint of the cell.

Working of Prismatic Cell Tester

A data acquisition system, a load bank, a voltage source, and a current source are usually found in a prismatic cell tester. The voltage source is used to measure the voltage of the cell, and the current source is used to charge and discharge it. The internal resistance and current of the cell can be measured by applying a load to it using the load bank. The test results are gathered and recorded via the data acquisition system.

Importance of a Prismatic Cell Tester

Using a prismatic cell tester has the following advantages:

  • Increased efficiency of the battery pack: Prisma cell testers can enhance battery packs' overall performance by choosing cells with comparable properties.

  • Reduced battery pack cost: By identifying and rejecting defective cells, prismatic cell testers can help reduce the cost of battery pack production.

  • Increased battery pack safety: By identifying and rejecting cells with potential safety hazards, prismatic cell testers can help to increase the safety of battery packs.

Types of Prismatic Cell Testers

There exist multiple varieties of prismatic cell testers, each possessing distinct features. Prismatic cell testers come in a variety of popular varieties, such as:

  • Charge/discharge testers: Using a constant current or power level, these testers charge and discharge cells to determine their capacity.

  • Impedance testers: These testers use a small amount of AC current to measure the voltage drop that occurs to determine the internal resistance of a cell.

  • Cycle testers: By repeatedly charging and discharging a cell, these testers determine the length of its cycle.

Key Features of a Prismatic Cell Tester

A prismatic cell tester's essential characteristics include the following:

  • Accuracy: A high degree of accuracy should be possible for the tester to measure a cell's electrical parameters.

  • Repeatability: Over time, the tester should be able to generate results that are consistent.

  • Usability: The tester ought to be simple to operate and use.

  • Versatility: A wide range of prismatic cell types should be able to be tested by the tester.

The following elements should be taken into account when selecting a prismatic cell tester:

  • The kind of cells you're going to test are: Select a tester that is appropriate for the kind of cells you intend to test.

  • The precision and consistency you require: Select a tester who satisfies your needs for repeatability and accuracy.


To guarantee the performance and quality of lithium-ion battery packs, prismatic cell testers are crucial instruments for battery assemblers and manufacturers. To develop a distinct battery cell profile, they measure a range of electrical parameters, such as voltage, current, capacity, and internal resistance. Prisma cell testers can lower battery pack costs, increase safety, and optimize performance by choosing cells with comparable properties. Think about things like affordability, versatility, ease of use, accuracy, and cell compatibility when selecting a prismatic cell tester. Manufacturers can guarantee the production of high-quality battery packs and optimize battery performance with the appropriate tester.

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