Chosen Solution

The “Service Battery” message is still be given in the battery drop-down menu after I replaced the battery with the iFixit kit. It seems like it was a successful installation other than that.

RESET SMC How to Reset the SMC on MacBooks

I also replaced the battery with the iFixit kit. The SMC reset didn’t help, I still get the message: “Service Recommended”. Is it a fault with the battery delivered with the ifixit kit?