The youtube video (link below) shows a lot of automation, which is good.
However, the "drop test", and the "leak test", and "fire resistance test" are not actual tests. The fact that the video uses these bogus promotions, instead of showing real drop, leak, and fire tests, opens questions about the claims themselves.
Is the case full of batteries when it is dropped? I doubt it, since Li-Ion batteries can become VERY unhappy when dropped. If it's an empty case, then the loads/stresses on an empty case are not representative. Drop the case with a load of dummy batteries, from at least 1 meter height, in three orientations, multiple times. (Frankly, a drop test on a case that should NEVER be dropped is probably not that important. Anybody out there ever break a battery case by dropping it?)
A fire resistant case is not meaningful if one fills the case with highly flammable lithium ion batteries. ABS is a thermoplastic. If the batteries go, the case melts.
If one wants to demonstrate "waterproof", then certify to a Internal Protection (IP) rating. IPx7 is minimum, IPx9K would be better.
The Aliexpress link to the product itself is broken.
Trying to go to the manufacturer's website (
www.yybms.com) generates a very stern warning from my security software about an invalid ID certificate.
These batteries might be fine products, but their sales agents are half a world away, and the broken link and security certificate issues are of concern. If the business supports the cost, it would be better if there were local import/sales/support companies.