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I just replaced my MBA Mid 2013 13” battery with the ifixit one (super easy swap btw), but I’m curious how much battery life I should expect from it? Anyone have any input? I calibrated it, but I’ve been using it for 5.5 hours today continuously and I’m down to 17% after starting at 100%. Should I recalibrate or is this the battery life I should expect from 3rd party replacement?

Take a better look at it using Coconut Battery. https://coconut-flavour.com/coconutbatte

Its performance should mimic what your original battery offered.