After the battery is fully charged according to the test method of 4.5.1 specifications, install the battery on the surface of the platform, and place a metal rod with a diameter of 1.58mm±0.2mm horizontally on the upper surface of the geometric center of the battery. A weight with a mass of 9.1kg±0.1kg is used to hit the surface of the battery with a metal rod from a height of 610mm±25mm in free fall and observe it for 6h.
Equipment features:
1, automatically lift the weight, and adjust to the required height automatically stop.
2, according to the test automatic drop hammer to complete the test.
3, the box adopts double-layer protection function.
4, the inner box exhaust fan, high temperature explosion-proof light.