Typing this on a 2015 13 inch macbook pro with 4 out of 6 batteries swelled.. I'm pretty sure I could get Apple to service it but I will attempt to do locally h

Typing this on a 2015 13 inch macbook pro with 4 out of 6 batteries swelled.. I'm pretty sure I could get Apple to service it but I will attempt to do locally here in Shenzhen. It is around 50USD to replace the batteries on the spot with a "new, original" pack.. The dilemma is, do I want an "original" pack back in?