It's too hot.

Businessmen and couriers. According to the inquiry of China Travel Service. Com, the responsibility for the bulging of mobile phone batteries in transit lies with merchants and express delivery. According to Article 20 of the Measures for the Administration of Express Delivery Market, if there is no compensation agreement between the merchant and the express delivery, the insured express (mail) shall be compensated according to the insured amount; For uninsured express mail (mail), compensation shall be made in accordance with relevant laws and regulations.