Too Bright
Keeping your screen on the highest brightness level isn’t only bad for your eyes; it’s also detrimental to your battery. The brighter your screen is, the faster it drains your battery. The more frequently you drain your battery, the sooner it will fail altogether. Save your device by turning down the brightness level.

It would be best if you always aimed to keep your device’s screen set to the minimum level of brightness that your eyes can see. This will prolong your device exponentially. You can even set your brightness level to adjust automatically based on the level of lights around you, saving you the hassle of doing it manually over and over.