Changing these 7 settings on my Samsung phone improved its battery life by hours
Briefly

Changing these 7 settings on my Samsung phone improved its battery life by hours
"Kerry Wan/ZDNET Samsung's Galaxy smartphones are some of the best Android phones available today, thanks to their responsive and feature-rich software. But most Samsung phones -- especially the flagships like the Galaxy S25 Ultra, Galaxy Z Fold 7, and Z Flip 7 -- come with over-the-top features that you might not use daily. If your new Galaxy phone isn't lasting an entire day on a single charge, there are ways to make the most of what you have without hindering the user experience."
"Most Samsung phones feature AMOLED displays, which can control individual pixels. So, when you use a dark theme or dark wallpaper, the part of the screen that needs to stay black won't turn on those pixels. This, in turn, reduces screen power usage and makes your battery last slightly longer. How to: Open the Settings app > Display. You'll get two cards for Light and Dark. Tap on the Dark option."
Samsung Galaxy smartphones combine responsive, feature-rich software with many premium features that users may not use daily. Battery life can fall short of a full day on a single charge, but several usability-focused optimizations can extend runtime without degrading the experience. Using Dark Mode on AMOLED screens prevents black areas from lighting pixels, reducing screen power consumption. Enabling adaptive brightness lets the ambient light sensor adjust display luminosity to avoid unnecessary brightness. The guidance avoids trivial suggestions like lowering resolution or refresh rate and instead focuses on practical settings that preserve quality of life while improving efficiency.
Read at ZDNET
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