1. National SF Express, Yunda, ZTO, YTO, STO, etc. can be sent by mail, because lithium batteries are not prohibited items, but lithium batteries are restricted items for air transportation, so they cannot be transported by air. air. They can only be transported by air.
2. The four major international express companies, DHL, FEDEX, UPS and TNT, can all ship batteries, but they differ in the categories of batteries they accept.