Battery Overcharge Testing Laboratory, Here We Explain the Requirements of Battery Overcharge Testing

Test

Electrical safety tests: Charging test Discharge test Continuous charging test Abnormal charging test Overcharge test Forced discharge test Overcharge test Overdischarge test Overvoltage charging test Overcurrent charging test Unbalanced charging Undervoltage discharge test Reverse charging test Electrostatic discharge test Power limit test Input power test Output port overload Wrong installation test External short circuit test Forced internal short circuit

Environmental safety tests: Temperature and humidity cycle test Mold stress relief High altitude low voltage simulation Impact test Vibration test Heavy impact test Squeeze test Thermal shock test Drop test Combustion test Temperature rise test Flame retardant test 250N steady force test High temperature test Washing test

Protect circuit safety tests: Overvoltage charging protection Overcurrent charging protection Undervoltage discharge protection Short circuit protection test Overload protection test Over temperature protection test High pressure test

Other performance tests: Capacity test Cycle life test Vacuum glove box

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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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