Conduct 4 kV contact discharge test (+ 5 times for 4 kV) and 8 kV air discharge test (5 times for C ± 8 kV) on each terminal of the battery pack or the output terminal of the circuit board according to the provisions of GB / T 17626.2), with an interval of 1 min between each two discharge tests
Result: there is no fire or explosion. If there is a protection circuit, its protection function should not fail.
