OLED screens display black by shutting off individual pixels on the screen. Use black themes, wallpapers, etc on OLED screens – Samsung, Google (with the Pixel 2 XL and Pixel 3 XL), LG (with the V40 and G8), and some others use some kind of OLED, POLED, or AMOLED display.This is also the only battery saving trick that works on LCD screens. Your screen is usually the top source of battery drain. However, the lower your screen brightness is, the less energy your screen uses.

Lower your screen brightness – This is sometimes unavoidable in certain situations like direct sunlight.Uninstall apps you don’t use – That way they don’t run in the background and consume battery life.Here are some quick, simple tricks that do actually work: Thankfully, there are some small tricks that improve battery life no matter what device you own. Thus, the really good battery saving apps are for root users only. Google is slowly closing the doors on Android when it comes to stuff like accessibility, developer tools, and the like.

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