In the previous step, you must have noticed that I have mentioned how AMOLED affects the phone’s battery. However, in this step, we will be taking advantage of the display screen type and use a true-black wallpaper to save a significant amount of battery power.

Reason? The AMOLED screen is made of special organic material that only lights up when a current is passed through it. Every single pixel lit up individually. And if you use true black wallpaper as your home screen and lock screen background then those pixels will not light up, which saves battery.

Most of the Samsung’s flagship smartphones uses AMOLED (Active Matrix Organic Light Emitting Diode) due to its performance and crisp results. And then topping it with a true black wallpaper will make it considerably less taxing on the battery.