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Address: 2st floor, B Area, Jinbaisheng Industrial Park, Headquarters 2 Road, Songshan Lake Hi-tech Industrial Development Zone, Dongguan City, Guangdong Pr., China.
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External short circuit test requirements
Keep the test environment temperature at 57±4°C, so that the external temperature of the battery or battery sample reaches 57±4°C.
The positive and negative electrodes of each test battery sample were short-circuited with a Cu wire with a resistance value <0.1 Ω. The battery was discharged until it caught fire or exploded, or until the battery was completely discharged, and the temperature of the casing was again lowered to room temperature.
After fully charging the battery pack, place them in an environment of 20 °C ± 5 °C and 55 °C ± 5 °C, short-circuit the positive and negative terminals of the battery pack, and the total external short-circuit resistance is 80mΩ ± 20mΩ. For the battery pack with the protection circuit removed or without the protection circuit shorted 24h, the battery pack that retains the protection circuit is short-circuited to the protection circuit.
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