If they do that after deliberately reducing their maximum charge (a setting which would probably come with a warning that reduced runtime of the phone is the re

If they do that after deliberately reducing their maximum charge (a setting which would probably come with a warning that reduced runtime of the phone is the result of doing it), they'll probably also complain that their internet speed has gone down after disabling the LTE/4G option (actually that does seem to be even less transparent, because not everyone knows that LTE is faster than 3G). Didn't stop Apple from offering a switch to disable LTE/4G.