The battery comes with these handy pull tabs, previously seen in the Mate 20 Pro.

While the tabs labelled "1" and "2" are somewhat useless (don't mistake them for adhesive pull tabs), number 3 helps us lever the energy cell out of the case.

This battery delivers a typical capacity of 16.04 Wh (4200 mAh @ 3.82 V)—which is on par with the Mate 20 Pro, while beating the Galaxy S10+ (15.79 Wh), not to mention the iPhone XS Max (12.08 Wh).