Originally Posted by
joer1212
Based on 124,800mAh and 5V, that battery is 124Wh.
And...
Electronic products that contain lithium batteries, such as watches, calculators, cameras, cell phones, portable computers and DVs, can be taken as hand luggage and consigned in the checked luggage. The rated energy of the batteries should not exceed 100wh; those between 100wh and 160wh must get the permission of the air company. The electric appliances should be carefully kept to prevent any unexpected startup.
https://www.travelchinaguide.com/ess...ivil-aviation/
I'm guessing they'll let it pass, but if you run into someone who's having a bad day and/or you piss them off, be prepared to part ways with the battery. Personally, I would have researched the regs prior to purchase, and picked a product that was less than 100Wh.