Let me add my 2 cents worth: What that means is that of the total battery used when you checked it, 75% of it was used by your display. So, if you went from 100% battery charged to 90%, of that 10% decrease in battery, 7.5 can be attributed to your display. Turn your brightness now to about 30%, turn off auto, that is plenty bright if you're inside. If your outside and need a brighter screen then turn it up, but return it to 30% when you're finished. There are a number of toggles that will allow you to adjust display brightness without having to go into settings. Also, adjust your time out setting down to 1 min or better yer 30 seconds...if you can live with that.