A vivid display looks great, especially outdoors or while watching videos. It also requires more power. When the level stays near maximum throughout the day, it puts unnecessary strain on your phone even in places where low light is sufficient.
Adjust it manually based on the environment. Even better, turn on Auto-Brightness. Your eyes will adapt quickly, and your phone will have less work to do. Let the setting handle future adjustments as the light around you changes.
Quick percentage depletion often occurs unexpectedly. Where did all that power go? The answer comes down to small choices made throughout the day, many of which barely register while you use your phone.
Continual distraction or lack of knowledge makes power usage easy to overlook. Here are the most common practices to be aware of that cause excessive drain.