At 54.5 Wh, this battery doles out ~27% less power between charges than last year's edition—although with just three cells instead of six, it might be a tad easier to remove.

That said, this Pro actually packs more oomph than its Touch Bar-equipped sibling, whose battery clocks in at 49.2 Wh.

Plus, Apple claims this battery's good for 10 hours of wireless web browsing, equivalent to both last year's 13" MacBook Pro and the 41.4 Wh Retina MacBook 2016.

Up top, we find this battery control board which — unlike the impeccably manicured components surrounding it — is coated in thick epoxy à la Apple's Lightning-to-headphone dongle.