the wasted energy doesn't itself matter. where it goes kinda does though. most of the waste is delivered as excess heat in the phone chassis at the worst possib

the wasted energy doesn't itself matter. where it goes kinda does though. most of the waste is delivered as excess heat in the phone chassis at the worst possible time. subjecting a non-user-replaceable lipo battery to unnecessary heat while charging is antithetical to the goal of keeping a phone for a long time.