Dynamic wallpapers—backgrounds that contain movement and change over time—look cool but drain your battery. ... Note, however, that this will also disable screen transitions and effects that dissolve as well as the parallax effect—where your wallpaper, apps, and alerts move with you as you tilt your device.

Does dynamic background drain battery?

The answer: yes, but only if you let them.

Does Iphone dynamic wallpapers drain battery?

Dynamic Wallpapers was a fun UI feature that was added to iOS 7, but it drains battery life. If you use Dynamic Wallpapers and experience issues with battery life, you might want to disable the app and pick a standard background image by following these steps.