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Environmental safety test
250N constant force test
UL certification
Test requirements

The battery shall be tested at an ambient temperature of 20 ° C ± 5 ° C. The battery shell shall be subjected to a continuous pressure of 250N ± 5N for 5S, and the test shall be carried out from the top, bottom to both sides of the battery shell through a suitable test tool with a diameter of 30mm that can contact the circular plane. Check after standing for 6h
Result: no fire, explosion and liquid leakage.