i would be very careful with cheap lipos - there are tons of brands on amazon, but, even for regular lipos there is only a handful of brands folks really buy.
if you go to a good reputable site, say, getfpv.com - you can see which brands are there. from what i am aware, there is no known reputable 3rd party brands that sell DJI-like high voltage chemistry cells.
i would really do not advice buying anything non-DJI made or counterfeit. it is not worth it.
also keep in mind that amazon, same as aliexpress - is just a front door for vendors and does not guarantee nothing. get it from b&h or other vendor that can actually guarantee authenticity.