UN38.3 external short circuit: Requirement: The temperature of the battery or battery pack to be tested must be stabilized so that the case temperature reaches 55 ± 2 ° C, and then the battery or battery pack is subjected to a short circuit condition with a total external resistance of less than 0.1 ohm at 55 ± 2 ° C. This short circuit condition should be continued for at least 1 hour after the battery or battery pack case temperature returns to 55 ± 2 °C. The battery or battery pack must be observed for another 6 hours before the test is completed. RESULTS: The battery or battery pack meets this requirement if the case temperature does not exceed 170 ° C and there is no disintegration, cracking and no combustion within 6 hours after the test. UL 1642, 2054 short circuit test: Claim: A. The positive and negative poles of each test battery sample are short-circuited with Cu wire with resistance value <0.1Ω. The battery is discharged until it catches fire or explodes, or until the battery is completely discharged, the shell temperature drops to room temperature again. B. The test is carried out at room temperature and 60 ± 2 ° C. The battery is stabilized at room temperature or 60 ± 2 ° C and then shorted. C. Unless the manufacturer indicates that it is connected in series or in parallel, the battery should be tested separately. For series or parallel applications, the other five batteries are tested, and the maximum number of batteries used is determined by the number of series/parallel used. D. When there is an overcurrent or thermal protection device in the battery and it has been UL certified, the battery should be tested under the maximum load condition that the protection device is not open, and the unprotected protective device must be shorted. Result: The sample should not ignite or explode, and the temperature of the outer casing or battery case should not exceed 150 °C. For more standard short-circuit test requirements, please contact Dongguan Huayin Business Department for your request, thank you! 2. Battery extrusion test machine 3. Battery burning test machine 4. Battery Needle Tester 5. Battery extrusion needle test machine There are also short circuit testers, temperature type extrusion testers, and the like.
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Note: The test results in the standard mentioned that the surface of the battery should not exceed 150 ° C, 170 ° C, can be equipped with a temperature detector or choose the temperature acquisition system of Dongguan Huayin Company.
Dongguan Huayin Company is the first professional production and research battery testing equipment in China.
1. Battery weight impact test machine)
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