Battery High-Temperature Usage Testing Laboratory: Explaining the Requirements for High-Temperature Usage 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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High temperature test

Partial certification program

High temperature test requirements

CQC certification

The fully charged sample was placed in a high temperature test chamber, and the temperature in the test chamber was set to the maximum upper limit and upper discharge temperature of the battery pack specified by the manufacturer, the upper limit temperature of the battery and the upper limit of the discharge temperature, and the maximum value at 80 °C. After the surface temperature of the sample is stable, it is kept for 7 hours.
a) cut off the circuit
b) The circuit is not cut off, and a discharge charging cycle is continued according to the specified charging and discharging method during the high temperature test.
Result: no fire, no explosion, no leakage

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