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Overcharge test

Partial certification program

Overcharge test requirements

UL Certification

 The battery is tested at an ambient temperature of 20±5°C (68±9°F), and at a constant charging current 10 times the C5 ampere rate, it is used enough to maintain 10 times the C5 ampere rate during the entire test. The voltage is a single string Multiply the 6V string by the number of strings. During the test, the temperature is measured on the inner battery casing of each sample. A power supply voltage sufficient to maintain 10 times the C5 ampere rate during the entire test should be used with a constant charging current 10 times the C5 ampere rate. During the test, the temperature is measured on the inner battery casing of each sample. The test will continue until the battery or battery explodes, vents or individual operation protection devices work, and the temperature of the battery's internal casing reaches a steady state or returns to the ambient temperature. If PTCor's other resettable protection devices work during the test, they should be reset at least 10 times.

     Result: no fire, no explosion.


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