4K1VM or 6GTPY for Dell Precision 5540?

Hi,

I want to upgrade my stock 56Wh battery to the 97Wh variant as I don't use the 2.5" hard drive slot. Online, I am seeing in the descriptions of both 4K1VM and 6GTPY that these are compatible with the Precision 5540.

I am wondering, does it matter which one I get? Will both of them work fine? From what I can see they are the exact same battery, just a different part number.

Thanks