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Short Circuit Testing for Batteries

At Clark Testing, we perform short circuit testing to ensure that batteries meet safety standards and regulatory requirements, such as those outlined by UN 38.3 and IEC 62133. This is a critical test for safety assessment conducted on batteries to evaluate their behavior and performance under short circuit conditions.

Short circuit testing determines how a battery responds to short circuit conditions, including risks of overheating, leakage, thermal runaway, or explosion.  This testing simulates an unintentional electrical connection between the positive and negative terminals of a battery, which can lead to excessive current flow and potential hazards.

The short circuit test entails bring the battery to a full charge to its rated capacity and establish baseline performance metrics.  The battery terminals are then intentionally shorted using a controlled method. This may involve using a resistor or a wire to create a low-resistance connection.

Throughout the test, the Clark Testing engineers, and test technicians monitor various parameters including:

    • Current levels
    • Voltage drop
    • Temperature changes
    • Physical alterations (e.g., swelling, venting)

After the test, the battery is inspected for signs of failure or damage, and the collected data is analyzed to assess safety and performance implications.  Short circuit testing enables developers to identify critical failure thresholds and potential safety risks associated with short circuits.  Further technical development can then be integrated to enhance battery safety, such as thermal management systems or circuit protection features.

“As one of the most experienced and capable battery test laboratories in the US, our customers recognize the Clark Battery Lab as a critical resource in their technical development and market advancements in battery technology. Partner with Clark Testing to ensure your products meet the highest safety and performance standards.”

Paul Heffernan