I changed 7 Samsung phone settings to instantly improve the battery life
Briefly

Samsung's Galaxy smartphones excel in the Android ecosystem, but their power can be taxed by demanding features. Users may experience battery drain, especially with flagship models like the Galaxy S25 Ultra and Z Fold 6. To optimize battery life without sacrificing performance, several practical tips are provided, including using Dark Mode, which conserves energy by minimizing screen power usage on AMOLED displays. Other methods, such as toggling on Adaptive Brightness, help to ensure screens are only as bright as necessary based on environmental lighting, enhancing overall efficiency and battery longevity.
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.
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.
Read at ZDNET
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