In order to meet the requirements of the national standard GB/T32960, the backup battery module is connected to the DiLink host (embedded 4G/5G module components). After the vehicle battery is powered off, the seamless connection automatically switches to the backup battery module to provide power to the DiLink host to achieve data upload. function and ensure continuous working for more than 10 minutes. During independent operation, the host should be able to perform data collection, data storage, data transmission and data reissue normally. (Requirements of the new national standard GB/T 32960, expected to be implemented by the end of 2023) This backup battery box solution is suitable for the DiLink 2.1/5.0 platform. The function needs to be guaranteed for more than 10 minutes, it works in the range of -30~85 degrees, and the current must reach more than 1.2A; the voltage needs to be boosted when switching from the battery to the battery pack. If the 3.6V battery pack is boosted, it cannot meet the 1.2A discharge requirement for 10 minutes. Therefore, the subsequent battery pack must be at least 7.2V600mAh or 6.0V1200mAh or above to meet the discharge requirement.