How to check the originality of the battery macabuca?

Are the owner of macbook pro a1398, after 6 years of use the battery is slightly swollen. Decided to replace, I want to buy an original. Google gave a few options.

The question arises. In some it says that they have the original. How to test it? Just don't want to sold me a battery from aliexpress for big money.
June 8th 19 at 17:16
1 answer
June 8th 19 at 17:18
>>Decided to replace, I want to buy an original.

They sort of long gone. Only AppleCare can get.
Do I understand correctly that in this situation, you need to only buy from Ali because in other places the probability of 99% to obtain the same overpraise? - Morgan54 commented on June 8th 19 at 17:21
Ali chance of running into quite a lot of crap above.

Better from reliable vendors. For example, in fixes: https://www.ifixit.com/Store/Mac/MacBook-Pro. https://www.newegg.com/Product/ProductList.aspx?De... - Saul78 commented on June 8th 19 at 17:24

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