Chosen Solution

Hello All, A client has asked me to replace the battery in their MacBook Air (Retina, 13-inch, 2018), i have looked for a battery on here and there are 4 different types. How do i determine which one i need, do i need to go and take it apart to find out. I used the serial number on the apple warranty check site and the detail in the thread title are all it gives me. Thanks very much in advance.

The only battery I see is this one

Yeah, i think its that one. Thank you